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1. A chloroplast Glycolate catabolic pathway bypassing the endogenous photorespiratory cycle enhances photosynthesis, biomass and yield in rice (Oryza sativa L.)

Author:
Lopamudra Nayak; Darshan Panda; Goutam Kumar Dash; Milan Kumar Lal; Padmini Swain; M.J. Baig; Awadhesh Kumar
Source:
Plant science 2022 v.314 pp. 111103
ISSN:
0168-9452
Subject:
Calvin cycle; Escherichia coli; Oryza sativa; biomass; carbon dioxide; catabolism; chloroplasts; genetic vectors; grain yield; harvest index; oxidoreductases; photorespiration; ribulose-bisphosphate carboxylase; rice; temperature; transgenes
Abstract:
... Photorespiration accounts for 20–50 % reduction in grain yield in C₃ crops. The process is essential to remove 2-phosphoglycolate produced due to the oxygenation activity of the ribulose-1,5-bisphosphate carboxylase oxygenase (RuBisCO) enzyme. Attempts were made to improve photosynthesis through enriched CO₂ concentration by installing numerous photorespiratory bypass modules in the chloroplast of ...
DOI:
10.1016/j.plantsci.2021.111103

2. A reduction in metabolism explains the tradeoffs associated with the long‐term adaptation of phytoplankton to high CO2 concentrations

Author:
Peng Jin; Yan Ji; Quanting Huang; Peiyuan Li; Jinmei Pan; Hua Lu; Zhe Liang; Yingyan Guo; Jiahui Zhong; John Beardall; Jianrong Xia
Source:
The new phytologist 2022 v.233 no.5 pp. 2155-2167
ISSN:
0028-646X
Subject:
Calvin cycle; Phaeodactylum tricornutum; carbon; carbon dioxide; climate change; energy; glycolysis; pentose phosphate cycle; phytoplankton; primary productivity; proteomics; tricarboxylic acid cycle
Abstract:
... Phytoplankton are responsible for nearly half of global primary productivity and play crucial roles in the Earth’s biogeochemical cycles. However, the long‐term adaptive responses of phytoplankton to rising CO₂ remains unknown. Here we examine the physiological and proteomics responses of a marine diatom, Phaeodactylum tricornutum, following long‐term (c. 900 generations) selection to high CO₂ con ...
DOI:
10.1111/nph.17917

3. Advances in proteome-wide analysis of plant lysine acetylation

Author:
Linchao Xia; Xiangge Kong; Haifeng Song; Qingquan Han; Sheng Zhang
Source:
Plant communications 2022 v.3 no.1 pp. 100266
ISSN:
2590-3462
Subject:
Calvin cycle; abiotic stress; acetylation; carbon; histones; lysine; phosphorylation; plant growth; post-translational modification; proteomics
Abstract:
... Lysine acetylation (LysAc) is a conserved and important post-translational modification (PTM) that plays a key role in plant physiological and metabolic processes. Based on advances in Lys-acetylated protein immunoenrichment and mass-spectrometric technology, LysAc proteomics studies have been performed in many species. Such studies have made substantial contributions to our understanding of plant ...
DOI:
10.1016/j.xplc.2021.100266

4. An integrated omics analysis reveals the gene expression profiles of maize, castor bean, and rapeseed for seed oil biosynthesis

Author:
Nian Liu; Jing Liu; Shihang Fan; Hongfang Liu; Xue-Rong Zhou; Wei Hua; Ming Zheng
Source:
BMC plant biology 2022 v.22 no.1 pp. 153
ISSN:
1471-2229
Subject:
Calvin cycle; biosynthesis; castor beans; corn; endosperm; gene expression; human nutrition; humans; lipid content; lipid metabolism; pentose phosphate cycle; rapeseed; seed development; seed oils; seed storage; sustainable development; transcriptome; triacylglycerols
Abstract:
... BACKGROUND: Seed storage lipids are valuable for human diet and for the sustainable development of mankind. In recent decades, many lipid metabolism genes and pathways have been identified, but the molecular mechanisms that underlie differences in seed oil biosynthesis in species with developed embryo and endosperm are not fully understood. RESULTS: We performed comparative genome and transcriptom ...
DOI:
10.1186/s12870-022-03495-y

5. Anaplerotic flux into the Calvin–Benson cycle: hydrogen isotope evidence for in vivo occurrence in C3 metabolism

Author:
Thomas Wieloch; Angela Augusti; Jürgen Schleucher
Source:
The new phytologist 2022 v.234 no.2 pp. 405-411
ISSN:
0028-646X
Subject:
Calvin cycle; Helianthus annuus; biosynthesis; carbon; carbon dioxide; deuterium; fractionation; glucose; glucose 6-phosphate; isotopes; leaves; nitrogen; oxidative stress; pentose phosphate cycle; photorespiration; ribulose 1,5-diphosphate; starch
Abstract:
... As the central carbon uptake pathway in photosynthetic cells, the Calvin–Benson cycle is among the most important biochemical cycles for life on Earth. A carbon flux of anaplerotic origin (i.e. through the chloroplast‐localized oxidative branch of the pentose phosphate pathway) into the Calvin–Benson cycle was proposed recently. Here, we measured intramolecular deuterium abundances in leaf starch ...
DOI:
10.1111/nph.17957

6. Changes in physiological performance and protein expression in the larvae of the coral Pocillopora damicornis and their symbionts in response to elevated temperature and acidification

Author:
Youfang Sun; Lei Jiang; Sanqiang Gong; Guillermo Diaz-Pulido; Xiangcheng Yuan; Haoya Tong; Lintao Huang; Guowei Zhou; Yuyang Zhang; Hui Huang
Source:
Science of the total environment 2022 v.807 pp. 151251
ISSN:
0048-9697
Subject:
Calvin cycle; acidification; adults; calcification; carbon dioxide fixation; coral reefs; corals; dissolved inorganic carbon; endosymbionts; environment; larvae; mortality; phosphoenolpyruvate carboxylase; photochemistry; protein synthesis; proteomics; symbiosis; temperature; thermal stress
Abstract:
... Climate change causes ocean warming and acidification, which threaten coral reef ecosystems. Ocean warming and acidification cause bleaching and mortality, and decrease calcification in adult corals, leading to changes in the composition of coral communities; however, their interactive effects on coral larvae are not comprehensively understood. To examine the underlying molecular mechanisms of lar ...
DOI:
10.1016/j.scitotenv.2021.151251

7. Compartment-specific energy requirements of photosynthetic carbon metabolism in Camelina sativa leaves

Author:
Thomas Wieloch; Thomas David Sharkey
Source:
Planta 2022 v.255 no.5 pp. 103
ISSN:
0032-0935
Subject:
Calvin cycle; Camelina sativa; carbon; carbon dioxide; carbon dioxide fixation; carbon metabolism; chloroplasts; cytosol; electron transfer; energy; exports; imports; leaves; malate dehydrogenase; mitochondria; oxidative phosphorylation; pentose phosphate cycle; phenotype; photons; photorespiration; ribulose-bisphosphate carboxylase; sucrose
Abstract:
... MAIN CONCLUSION: The oxidative pentose phosphate pathway provides cytosolic NADPH yet reduces carbon and energy use efficiency. Repressing this pathway and introducing cytosolic NADPH-dependent malate dehydrogenase may increase crop yields by ≈5%. Detailed knowledge about plant energy metabolism may aid crop improvements. Using published estimates of flux through central carbon metabolism, we phen ...
DOI:
10.1007/s00425-022-03884-5

8. Coordinated regulation of photosynthesis and sugar metabolism in guar increases tolerance to drought

Author:
Komal Pandey; Ravi Shankar Kumar; Priti Prasad; Veena Pande; Prabodh Kumar Trivedi; Pramod Arvind Shirke
Source:
Environmental and experimental botany 2022 v.194 pp. 104701
ISSN:
0098-8472
Subject:
Calvin cycle; Cyamopsis tetragonoloba; carbon; carbon dioxide; chlorophyll; drought; electron transfer; energy; fluorescence; fructans; fructose; gene expression; glucose; growth and development; heat; oxidative stress; photochemistry; physiological state; plant gums; vegetables; water stress
Abstract:
... Drought is an inevitable environmental constraint to plant productivity. Cyamopsis tetragonoloba commonly known as guar is an economically important crop used as vegetable, and for its seed gum. We examined the complicated network of sugar interactions and regulation of photosynthesis in four varieties of guar subjected to water stress. A presumptive mechanistic approach considering growth and dev ...
DOI:
10.1016/j.envexpbot.2021.104701

9. Dynamic light‐ and acetate‐dependent regulation of the proteome and lysine acetylome of Chlamydomonas

Author:
Magdalena Füßl; Ann‐Christine König; Jürgen Eirich; Markus Hartl; Laura Kleinknecht; Alexandra‐Viola Bohne; Anne Harzen; Katharina Kramer; Dario Leister; Jörg Nickelsen; Iris Finkemeier
Source:
plant journal 2022 v.109 no.1 pp. 261-277
ISSN:
0960-7412
Subject:
Calvin cycle; Chlamydomonas reinhardtii; acetates; acetylation; carbon; carbon metabolism; citrate (si)-synthase; fatty acid metabolism; fuel production; glyoxylate cycle; liquids; lysine; mass spectrometry; proteome; ribulose-bisphosphate carboxylase
Abstract:
... The green alga Chlamydomonas reinhardtii is one of the most studied microorganisms in photosynthesis research and for biofuel production. A detailed understanding of the dynamic regulation of its carbon metabolism is therefore crucial for metabolic engineering. Post‐translational modifications can act as molecular switches for the control of protein function. Acetylation of the ɛ‐amino group of ly ...
DOI:
10.1111/tpj.15555

10. Fe(II) Addition Drives Soil Bacterial Co-Ocurrence Patterns and Functions Mediated by Anaerobic and Chemoautotrophic Taxa

Author:
Chenyang Zhang; Senlin Liu; Sarfraz Hussain; Lifeng Li; Baiome Abdelmaguid Baiome; Shuiqing Xiao; Hui Cao
Source:
Microorganisms 2022 v.10 no.3 pp. -
ISSN:
2076-2607
Subject:
Calvin cycle; bacterial communities; community structure; drainage; methane; nitrate reduction; pH; paddies; redox potential; rice; sandy soils; soil bacteria
Abstract:
... Iron is among the most abundant elements in the soil of paddy fields, and its valence state and partitioning can be transformed by flooding and drainage alternations. However, little is known about the function of soil microbes that interact with Fe(II). In this study, sandy and loamy soils originating from rice fields were treated with Fe(II) at low and high concentrations. The findings demonstra ...
DOI:
10.3390/microorganisms10030547

11. Insights into carbon-fixation pathways through metagonomics in the sediments of deep-sea cold seeps

Author:
QiuYun Jiang; Hongmei Jing; QiuLong Jiang; Yue Zhang
Source:
Marine pollution bulletin 2022 v.176 pp. 113458
ISSN:
0025-326X
Subject:
Calvin cycle; acetyl coenzyme A; carbon dioxide fixation; cold; energy; marine pollution; metagenomics; sediments; tricarboxylic acid cycle; South China Sea
Abstract:
... Carbon fixation by chemoautotrophic microorganisms in the dark ocean has a major impact on global carbon cycling and ecological relationships in the ocean's interior. At present, six pathways of autotrophic carbon fixation have been found: the Calvin cycle, the reductive Acetyl-CoA or Wood-Ljungdahl pathway (rAcCoA), the reductive tricarboxylic acid cycle (rTCA), the 3-hydroxypropionate bicycle (3 ...
DOI:
10.1016/j.marpolbul.2022.113458

12. Melatonin reduces photoinhibition in cucumber during chilling by regulating the Calvin-Benson Cycle

Author:
Hailiang Zhao; Zicun Zhang; Yi Zhang; Longqiang Bai; Xiaohui Hu; Xiaojing Li; Lu Zhang; Yanxiu Miao; Yuping Wang
Source:
Scientia horticulturae 2022 v.299 pp. 111007
ISSN:
0304-4238
Subject:
Calvin cycle; carbon dioxide; carboxylation; cucumbers; electron transfer; energy conversion; irrigation; melatonin; photochemistry; photoinhibition; photosystem II; ribulose-bisphosphate carboxylase; ribulose-bisphosphate carboxylase activase
Abstract:
... To obtain new insights into the mechanisms through which melatonin reduces photoinhibition in cucumber seedlings during chilling, we investigated its effects on the Calvin-Benson cycle. Photoinhibition due to chilling was significantly reduced by prior irrigation with a 200 μM melatonin solution. This was evidenced by reduced declines in the quantum yield of photochemical energy conversion in PS I ...
DOI:
10.1016/j.scienta.2022.111007

13. Metabolism is a major driver of hydrogen isotope fractionation recorded in tree‐ring glucose of Pinus nigra

Author:
Thomas Wieloch; Michael Grabner; Angela Augusti; Henrik Serk; Ina Ehlers; Jun Yu; Jürgen Schleucher
Source:
The new phytologist 2022 v.234 no.2 pp. 449-461
ISSN:
0028-646X
Subject:
Calvin cycle; Pinus nigra; carbon; carbon dioxide; deuterium; drought; glucose; growth rings; isotope fractionation; leaves; regression analysis; stable isotopes; temporal variation
Abstract:
... Stable isotope abundances convey valuable information about plant physiological processes and underlying environmental controls. Central gaps in our mechanistic understanding of hydrogen isotope abundances impede their widespread application within the plant and biogeosciences. To address these gaps, we analysed intramolecular deuterium abundances in glucose of Pinus nigra extracted from an annual ...
DOI:
10.1111/nph.18014

14. Molecular Mechanism of Organic Pollutant-Induced Reduction of Carbon Fixation and Biomass Yield in Oryza sativa L.

Author:
Xinru Zhang; Na Liu; Huijie Lu; Lizhong Zhu
Source:
Environmental science & technology 2022 v.56 no.7 pp. 4162-4172
ISSN:
1520-5851
Subject:
Calvin cycle; Oryza sativa; biomass production; carbon dioxide; carbon dioxide fixation; carbon sequestration; diphenyl ethers; global carbon budget; plant growth; proteomics; ribulose-bisphosphate carboxylase; rice; tricyclazole
Abstract:
... Photosynthetic carbon fixation is fundamental for plant growth and is a key process driving the global carbon cycle. This study explored the mechanism of disturbed carbon fixation in Oryza sativa L. by organic pollutants 2,3,4,5-tetrachlorobiphenyl (CB 61), 4′-hydroxy-2,3,4,5-tetrachlorobiphenyl (4′-OH-CB 61), 2,2′,4,4′-tetrabromo diphenyl ether (BDE 47), tricyclazole (TRI), and pyrene. The biomas ...
DOI:
10.1021/acs.est.1c07835

15. Overexpression of TaFBA-A10 from Winter Wheat Enhances Freezing Tolerance in Arabidopsis thaliana

Author:
Kankan Peng; Yu Tian; Jing Cang; Jing Yu; Duojia Wang; Fuxia He; Huarui Jiao; Yige Tan
Source:
Journal of plant growth regulation 2022 v.41 no.1 pp. 314-326
ISSN:
0721-7595
Subject:
Arabidopsis thaliana; Calvin cycle; cold; cultivars; electrical conductivity; fructose-bisphosphate aldolase; genome; glycolysis; phenotype; plant growth; sugar content; tillering; winter; winter wheat
Abstract:
... Freezing stress is the principal abiotic stress that is not conducive to plant growth and yield. Fructose-1, 6-bisphosphate aldolase (FBA; EC 4.1.2.13) is a key metabolic enzyme, which plays an important role in Calvin cycle and glycolysis. In this study, we found that the expression of TaFBA10 from A genome in tillering nodes of strong cold resistance winter wheat cultivar Dongnongdongmai1 (Dn1) ...
DOI:
10.1007/s00344-021-10304-7

16. Photorespiration Alleviates Photoinhibition of Photosystem I under Fluctuating Light in Tomato

Author:
Qi Shi; Hu Sun; Stefan Timm; Shibao Zhang; Wei Huang
Source:
Plants 2022 v.11 no.2 pp. -
ISSN:
2223-7747
Subject:
Calvin cycle; Solanum lycopersicum var. lycopersicum; carbon dioxide; electron transfer; lighting; photoinhibition; photorespiration; photosystem II; radiation resistance; solar radiation; tomatoes
Abstract:
... Fluctuating light (FL) is a typical natural light stress that can cause photodamage to photosystem I (PSI). However, the effect of growth light on FL-induced PSI photoinhibition remains controversial. Plants grown under high light enhance photorespiration to sustain photosynthesis, but the contribution of photorespiration to PSI photoprotection under FL is largely unknown. In this study, we examin ...
DOI:
10.3390/plants11020195

17. Physiological and proteomic analyses of Tunisian local grapevine (Vitis vinifera) cultivar Razegui in response to drought stress

Author:
Wassim Azri; Rahma Jardak; Pascal Cosette; Clément Guillou; Jawaher Riahi; Ahmed Mliki; Manuela Chaves
Source:
Functional plant biology 2022 v.49 no.1 pp. 25-39
ISSN:
1445-4408
Subject:
Calvin cycle; Vitis vinifera; acclimation; amino acid metabolism; climate change; cultivars; drought; drought tolerance; energy; new species; osmotolerance; photorespiration; protective effect; protein synthesis; proteomics; signal transduction; viticulture; water stress
Abstract:
... Drought is one of the major environmental constraints threatening viticulture worldwide. Therefore, it is critical to reveal the molecular mechanisms underlying grapevine (Vitis vinifera L.) drought stress tolerance useful to select new species with higher tolerance/resilience potentials. Drought-tolerant Tunisian local grapevine cultivar Razegui was exposed to water deficit for 16days. Subsequent ...
DOI:
10.1071/FP21026

18. Physiological and proteomic analyses reveals that brassinosteroids application improves the chilling stress tolerance of pepper seedlings

Author:
Jie Li; Hamza Sohail; Muhammad Azher Nawaz; Chaowei Liu; Ping Yang
Source:
Plant growth regulation 2022 v.96 no.2 pp. 315-329
ISSN:
0167-6903
Subject:
Calvin cycle; Capsicum annuum; amino acids; ascorbate peroxidase; brassinosteroids; foliar application; gene expression regulation; glutathione peroxidase; mesophyll; oxidative phosphorylation; pepper; plant growth; protein synthesis; proteomics; stress tolerance; superoxide dismutase; thylakoids; ultrastructure
Abstract:
... Brassinosteroids (BRs) are important in plant resistance to chilling stress. However, limited information is available regarding the specific mechanisms involved at proteomic level. We utilized the iTRAQ proteomic approach, physiological assays and information obtained from cellular ultrastructure to clarify the underlying molecular mechanism of BRs to alleviate chilling stress in pepper (Capsicum ...
DOI:
10.1007/s10725-021-00778-6

19. Potassium and melatonin-mediated regulation of fructose-1,6-bisphosphatase (FBPase) and sedoheptulose-1,7- bisphosphatase (SBPase) activity improve photosynthetic efficiency, carbon assimilation and modulate glyoxalase system accompanying tolerance to cadmium stress in tomato seedlings

Author:
Manzer H. Siddiqui; Soumya Mukherjee; Ritesh Kumar; Saleh Alansi; Anis Ali Shah; Hazem M. Kalaji; Talha Javed; Ali Raza
Source:
Plant physiology and biochemistry 2022 v.171 pp. 49-65
ISSN:
0981-9428
Subject:
Calvin cycle; biosynthesis; cadmium; carbon; carbon dioxide fixation; carbonate dehydratase; chlorophyll; chlorophyllase; hydrogen peroxide; melatonin; nitrogen; nutrient uptake; plant physiology; potassium; ribulose-bisphosphate carboxylase; stress tolerance; tomatoes; toxicity
Abstract:
... The mechanism of the combined action of potassium (K) and melatonin (Mel) in modulating tolerance to cadmium (Cd) stress in plants is not well understood. The present study reveals the synergistic role of K and Mel in enhancing physiological and biochemical mechanisms of Cd stress tolerance in tomato seedlings. The present findings reveal that seedlings subjected to Cd toxicity exhibited disturbed ...
DOI:
10.1016/j.plaphy.2021.12.018

20. Role of melatonin in promoting plant growth by regulating carbon assimilation and ATP accumulation

Author:
Zhiyan Teng; Weiwei Zheng; Shufang Jiang; Seung-Beom Hong; Zhujun Zhu; Yunxiang Zang
Source:
Plant science 2022 v.319 pp. 111276
ISSN:
0168-9452
Subject:
Brassica rapa; Calvin cycle; DNA replication; adenosine triphosphate; carbon dioxide fixation; electron transfer; fluorescence; fructose; gene expression; glucose; glutathione; melatonin; oxidative stress; photosystem II; plant hormones; ribosomes; secondary metabolites; stomatal conductance; sucrose; transcriptomics; tricarboxylic acid cycle; vegetative growth
Abstract:
... Melatonin (MT) is a phytohormone important in mediating diverse plant growth processes. In this study, we performed transcriptomic, qRT-PCR, physiological and biochemical analyses of Brassica rapa seedlings in order to understand how MT promotes plant growth. The results showed that exogenous MT increased the rate of cyclic electron flow around photosystem (PS) I, fluorescence quantum yield, and e ...
DOI:
10.1016/j.plantsci.2022.111276

21. Spectral bands of incandescent lamp leading to variable productivity of purple bacteria biomass and microbial protein: Full is better than segmented

Author:
Siwei Yu; Yifeng Xu; Chuanzhou Liang; Wenjing Lou; Lai Peng
Source:
Science of the total environment 2022 v.823 pp. 153736
ISSN:
0048-9697
Subject:
Calvin cycle; Rhodobacter sphaeroides; biomass production; environment; enzyme activity; incandescent lamps; light intensity; photophosphorylation; protein content; specific growth rate; value added
Abstract:
... Purple non‑sulfur bacteria (PNSB) are competent microorganisms capable of producing value-added products from waste streams. Light source is one of the most influential factors determining the efficiency of this process. Previous studies mostly focused on optimizing light intensity, while the impact of spectral bands on PNSB growth is still unknown. To fill the knowledge gap, this study investigat ...
DOI:
10.1016/j.scitotenv.2022.153736

22. The positive effects of exogenous sodium nitroprusside on the plant growth, photosystem II efficiency and Calvin cycle of tomato seedlings under salt stress

Author:
Xuezhen Li; Song Wang; Xianjun Chen; Yundan Cong; Jinxia Cui; Qinghua Shi; Huiying Liu; Ming Diao
Source:
Scientia horticulturae 2022 v.299 pp. 111016
ISSN:
0304-4238
Subject:
Calvin cycle; carbon dioxide; carboxylation; cell respiration; growth retardation; leaves; nitroprusside; nitrous oxide; photochemistry; photosystem II; plant growth; protective effect; ribulose-bisphosphate carboxylase; ribulose-bisphosphate carboxylase activase; salt stress; salt tolerance; stomatal conductance; tomatoes; transketolase
Abstract:
... Although some studies have shown that exogenous sodium nitroprusside (SNP, an NO donor) participates in the tolerance of plants to stress, the protective role of the level of SNP-mediated endogenous nitrous oxide (NO) on the salt-induced inhibition of photosynthesis in salt-stressed tomato seedlings merits understanding. Thus, in this study, with the exception of tomato seedlings treated with 0 or ...
DOI:
10.1016/j.scienta.2022.111016

23. The potential contribution of the WRKY53 transcription factor, gamma-aminobutyric acid (GABA) transaminase, and histone deacetylase in regulating growth, organogenesis, photosynthesis, and transcriptional responses of tomato to different light-emitting diodes (LEDs)

Author:
Soghra Esmaelpour; Alireza Iranbakhsh; Kamaleddin Dilmaghani; Sayeh Jafari Marandi; Zahra Oraghi Ardebili
Source:
Journal of photochemistry and photobiology 2022 v.229 pp. 112413
ISSN:
1011-1344
Subject:
(S)-2-hydroxy-acid oxidase; Calvin cycle; Solanum lycopersicum; ascorbate peroxidase; biomass production; calcium; catalase; gamma-aminobutyric acid; genes; histone deacetylase; irradiation; light quality; nutritional status; organogenesis; photobiology; photochemistry; photorespiration; proline; red light; superoxide dismutase; tomatoes; transcription (genetics); transcription factors; wavelengths
Abstract:
... Impressive progress in developing light-emitting diodes (LEDs) offers a new dimension for meeting agricultural and biological expectations. The present study addresses how tomato (Solanum lycopersicum) seedlings respond to the different spectral qualities of LEDs (white, red, blue, and blue + red). The light treatments in a wavelength-dependent manner contributed to the variations in biomass accum ...
DOI:
10.1016/j.jphotobiol.2022.112413

24. The utilization of photophosphorylation uncoupler to improve lipid production of Chlorella, a case study using transcriptome and functional gene expression analysis to reveal its mechanism

Author:
Zhangzhang Xie; Fangyan Wu; Weitie Lin; Jianfei Luo
Source:
Biochemical engineering journal 2022 v.178 pp. 108275
ISSN:
1369-703X
Subject:
Calvin cycle; Chlorella; algae culture; biosynthesis; carbon dioxide; carbon dioxide fixation; case studies; cyanides; fatty acids; gene expression; glycolysis; hydrazones; microalgae; pentoses; phosphates; photophosphorylation; photosynthetic electron transport; transcriptome; tricarboxylic acid cycle
Abstract:
... Uncoupling of photophosphorylation appears to have positive effect on lipid production of microalgae, however, underlying mechanisms involved in the effect are still unresolved. In this study, an uncoupler of photophosphorylation, carbonyl cyanide m-chlorophenyl hydrazone (CCCP), was used for the promotion of microalgal lipid accumulation. The results indicated that addition of CCCP was able to en ...
DOI:
10.1016/j.bej.2021.108275

25. A sulfated polysaccharide κ-carrageenan induced antioxidant defense and proteomic changes in chloroplast against leaf spot disease of tomato

Author:
Sumithra Devi Mani; Muthukumar Govindan; Mehanathan Muthamilarasan; Radhakrishnan Nagarathnam
Source:
Journal of applied phycology 2021 v.33 no.4 pp. 2667-2681
ISSN:
0921-8971
Subject:
Calvin cycle; GATA transcription factors; Kappaphycus alvarezii; Septoria lycopersici; acid phosphatase; algology; antioxidant activity; biopolymers; calcium oxalate; chitin; chloroplast proteins; chloroplasts; fluorescence microscopy; foliar application; gene expression regulation; leaf spot; pathogens; peroxidase; proteomics; superoxide anion; tomatoes
Abstract:
... Ecofriendly approaches to control plant diseases using biopolymers are gaining momentum due to their non-toxic nature to the environment. The present study elucidates the potency of a sulfated polysaccharide, κ-carrageenan, obtained from the red seaweed Kappaphycus alvarezii, as an inducer of antioxidant defense and also chloroplast proteome against leaf spot disease in tomato. к-carrageenan (0.3% ...
DOI:
10.1007/s10811-021-02432-0

26. Abundance and diversity of carbon-fixing bacterial communities in karst wetland soil ecosystems

Author:
Xiayu Wang; Wei Li; Yutian Xiao; Aoqi Cheng; Taiming Shen; Min Zhu; Longjiang Yu
Source:
Catena 2021 v.204 pp. 105418
ISSN:
0341-8162
Subject:
Bradyrhizobium; Calvin cycle; Thiomonas; agricultural land; anthropogenic activities; bacterial communities; carbon sequestration; catenas; gamma-Proteobacteria; genes; karsts; microbial carbon; soil ecosystems; soil organic carbon; soil temperature; summer; wetland soils; wetlands; China
Abstract:
... Autotrophic carbon-fixing bacteria are the main drivers of carbon sequestration and elemental cycle in wetland ecosystems. Their relationship with environmental factors in karst soils such as soil organic carbon (SOC) fractions, which are affected by natural degradation and human disturbance, is key to understanding the biological mechanisms of karst wetland ecosystem deterioration and restoration ...
DOI:
10.1016/j.catena.2021.105418

27. Acute cadmium toxicity and post-stress recovery: Insights into coordinated and integrated response/recovery strategies of Anabaena sp. PCC 7120

Author:
Akanksha Srivastava; Subhankar Biswas; Sandhya Yadav; Sanjiv Kumar; Vaibhav Srivastava; Yogesh Mishra
Source:
Journal of hazardous materials 2021 v.411 pp. 124822
ISSN:
0304-3894
Subject:
Anabaena; Calvin cycle; autotrophs; cadmium; carbon dioxide; chelation; glycolysis; pentose phosphate cycle; photosystem II; plasticity; protein synthesis; proteome; toxicity
Abstract:
... Cyanobacteria, the first photoautotrophs have remarkable adaptive capabilities against most abiotic stresses, including Cd. A model cyanobacterium, Anabaena sp. PCC 7120 has been commonly used to understand cyanobacterial plasticity under different environmental stresses. However, very few studies have focused on the acute Cd toxicity. In this context, Anabaena was subjected to 100 μM Cd for 48 h ...
DOI:
10.1016/j.jhazmat.2020.124822

28. Bacterial response to soil property changes caused by wood ash from wildfire in forest soils around mining areas: Relevance of bacterial community composition, carbon and nitrogen cycling

Author:
Yiyue Zhang; Changchun Yan; Haijun Liu; Shengyan Pu; Huilun Chen; Beihai Zhou; Rongfang Yuan; Fei Wang
Source:
Journal of hazardous materials 2021 v.412 pp. 125264
ISSN:
0304-3894
Subject:
Calvin cycle; Fraxinus americana; Fraxinus nigra; ammonium; bacterial communities; bioavailability; carbon; carbon dioxide fixation; community structure; denitrification; forests; heavy metals; nitrate reduction; nitrates; nitrification; nitrogen; soil properties; wildfires; wood ash
Abstract:
... The different physical-chemical properties of the black ash (200–500 °C) and white ash (>510 °C) generated by wildfire may result in varied impacts on soil biological and abiotic indicators. Many studies have highlighted the environmental impacts of wood ash application due to its complex mixture of beneficial and detrimental compounds. However, few studies have compared the effect of black ash an ...
DOI:
10.1016/j.jhazmat.2021.125264

29. Biochemical and Molecular Aspects of Phosphorus Limitation in Diatoms and Their Relationship with Biomolecule Accumulation

Author:
José Pablo Lovio-Fragoso; Damaristelma de Jesús-Campos; José Antonio López-Elías; Luis Ángel Medina-Juárez; Diana Fimbres-Olivarría; Corina Hayano-Kanashiro
Source:
Biology 2021 v.10 no.7 pp. -
ISSN:
2079-7737
Subject:
Calvin cycle; carbon; carbon dioxide; energy; phospholipids; phosphorus; phytoplankton; polymers; triacylglycerols
Abstract:
... Diatoms are the most abundant group of phytoplankton, and their success lies in their significant adaptation ability to stress conditions, such as nutrient limitation. Phosphorus (P) is a key nutrient involved in the transfer of energy and the synthesis of several cellular components. Molecular and biochemical mechanisms related to how diatoms cope with P deficiency are not clear, and research int ...
DOI:
10.3390/biology10070565

30. CP12 Is Involved in Protection against High Light Intensity by Suppressing the ROS Generation in Synechococcus elongatus PCC7942

Author:
Masahiro Tamoi; Shigeru Shigeoka
Source:
Plants 2021 v.10 no.7 pp. -
ISSN:
2223-7747
Subject:
Calvin cycle; Synechococcus sp. PCC 7942; chlorophyll; light intensity; mutants; oxidative stress; paraquat
Abstract:
... We previously reported that CP12 formed a complex with GAPDH and PRK and regulated the activities of these enzymes and the Calvin–Benson cycle under dark conditions as the principal regulatory system in cyanobacteria. More interestingly, we found that the cyanobacterial CP12 gene-disrupted strain was more sensitive to photo-oxidative stresses such as under high light conditions and paraquat treatm ...
DOI:
10.3390/plants10071275

31. Calvin–Benson cycle regulation is getting complex

Author:
Libero Gurrieri; Simona Fermani; Mirko Zaffagnini; Francesca Sparla; Paolo Trost
Source:
Trends in plant science 2021 v.26 no.9 pp. 898-912
ISSN:
1360-1385
Subject:
Calvin cycle; autotrophs; carbon dioxide; dissociation; glyceraldehyde-3-phosphate dehydrogenase; proteome; pyridine nucleotides; regulatory proteins; thioredoxins
Abstract:
... Oxygenic phototrophs use the Calvin–Benson cycle to fix CO₂ during photosynthesis. In the dark, glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and phosphoribulokinase (PRK), two enzymes of the Calvin–Benson cycle, form an inactive complex with the regulatory protein CP12, mainly under the control of thioredoxins and pyridine nucleotides. In the light, complex dissociation allows GAPDH and PRK re ...
DOI:
10.1016/j.tplants.2021.03.008

32. Carbon isotopes of Proterozoic filamentous microfossils: SIMS analyses of ancient cyanobacteria from two disparate shallow-marine cherts

Author:
Jeffrey T. Osterhout; J. William Schopf; Kenneth H. Williford; Kevin D. McKeegan; Anatoliy B. Kudryavtsev; Ming-Chang Liu
Source:
Geomicrobiology journal 2021 v.38 no.8 pp. 719-731
ISSN:
1521-0529
Subject:
Calvin cycle; Cyanobacteria; Proterozoic eon; Raman spectroscopy; carbon dioxide fixation; ecosystems; light microscopy; mass spectrometry; microfossils; plankton; ribulose-bisphosphate carboxylase; Arizona; China
Abstract:
... The surface ecosystem of the Precambrian Earth was dominated by marine, planktonic and benthic phototrophic microorganisms, most prominently stromatolite-forming cyanobacteria, anoxygenic photosynthetic bacteria, and associated microbes. Although coupling the early microfossil record to physiologically definitive geochemical and isotopic signatures remains challenging, insights can be derived from ...
DOI:
10.1080/01490451.2021.1939813

33. Characterization and Proteomic Analysis of Novel Rice Lesion Mimic Mutant with Enhanced Disease Resistance

Author:
Yang Yong; Lin Qiujun; Chen Xinyu; Liang Weifang; Fu Yuwen; Xu Zhengjin; Wu Yuanhua; Wang Xuming; Zhou Jie; Yu Chulang; Yan Chengqi; Mei Qiong; Chen Jianping
Source:
Rice science 2021 v.28 no.5 pp. 466-478
ISSN:
1672-6308
Subject:
Calvin cycle; ascorbate peroxidase; cell death; chromosomes; disease resistance; electron transport chain; ethyl methanesulfonate; fungi; gel electrophoresis; gene expression regulation; gluconeogenesis; glycolysis; hydrogen peroxide; mutagenesis; mutants; pathogens; peroxidase; phenotype; phosphonates; photosynthetic electron transport; proteome; proteomics; recessive genes; rice; superoxide dismutase
Abstract:
... Lesion mimic mutants (LMMs) are plants that spontaneously form lesions without pathogen infection or external stimulus and exhibit resistance to pathogens. Here, a rice LMM was created by ethyl methane sulfonate mutagenesis, named as hpil (hydrogen peroxide induced lesion). Diaminobenzidine and trypan blue staining showed that large amounts of H₂O₂ were produced and cell death was occurred at and ...
DOI:
10.1016/j.rsci.2021.07.007

34. Chlorella vulgaris phycoremediation at low Cu+2 contents: Proteomic profiling of microalgal metabolism related to fatty acids and CO2 fixation

Author:
Lidiane Maria Andrade; Caique Alves Tito; Camila Mascarenhas; Fabiola Aliaga Lima; Meriellen Dias; Cristiano José Andrade; Maria Anita Mendes; Claudio Augusto Oller Nascimento
Source:
Chemosphere 2021 v.284 pp. 131272
ISSN:
0045-6535
Subject:
Calvin cycle; Chlorella vulgaris; bioremediation; biosynthesis; carbon dioxide; carbon dioxide fixation; climate change; fatty acids; glucose; microalgae; proteome; proteomics; ribulose 1,5-diphosphate; ribulose-bisphosphate carboxylase; value-added products
Abstract:
... The aim of this work was to correlate metabolic changes with copper ions (Cu⁺²) bioremediation by microalgae C. vulgaris 097 CCMA-UFSCar at low Cu⁺² content. The metabolic effects include proteome changes related to fatty acid biosynthesis (value-added product) and carbon fixation (climate change mitigation). Cu⁺², even at low concentration, showed a significant negative impact on C. vulgaris grow ...
DOI:
10.1016/j.chemosphere.2021.131272

35. Chromoplast differentiation in bell pepper (Capsicum annuum) fruits

Author:
Anja Rödiger; Birgit Agne; Dirk Dobritzsch; Stefan Helm; Fränze Müller; Nina Pötzsch; Sacha Baginsky
Source:
plant journal 2021 v.105 no.5 pp. 1431-1442
ISSN:
0960-7412
Subject:
Calvin cycle; Capsicum annuum; adenosinetriphosphatase; amino acids; biosynthesis; carotenoids; catabolism; chlorophyll; chloroplasts; chromoplasts; decline; fatty acids; oxidoreductases; pentose phosphate cycle; proteome; respiratory burst; ribosomes; sweet peppers
Abstract:
... We report here a detailed analysis of the proteome adjustments that accompany chromoplast differentiation from chloroplasts during bell pepper (Capsicum annuum) fruit ripening. While the two photosystems are disassembled and their constituents degraded, the cytochrome b₆f complex, the ATPase complex, and Calvin cycle enzymes are maintained at high levels up to fully mature chromoplasts. This is al ...
DOI:
10.1111/tpj.15104

36. Comparative proteomic analysis provides insight into the molecular mechanism of vegetative growth advantage in allotriploid Populus

Author:
Jiang Li; Yi Wang; Hairong Wei; Xiangyang Kang
Source:
Genomics 2021 v.113 no.3 pp. 1180-1192
ISSN:
0888-7543
Subject:
Calvin cycle; Populus; biomass; carbon dioxide fixation; diploidy; gene expression regulation; genomics; lumber; photorespiration; protein degradation; protein synthesis; proteomics; starch; sucrose; vegetative growth
Abstract:
... Though allotriploid poplar shows a salient vegetative growth advantage that impacts biomass and lumber yield, the proteomic data of Populus allotriploids have not been scrutinized for identifying the underlying molecular mechanisms. We conducted a large-scale label-free proteomics profiling of the 5th, 10th, and 25th leaves of allotriploids and diploids, and identified 4587 protein groups. Among 9 ...
DOI:
10.1016/j.ygeno.2021.03.002

37. Comparative transcriptome analysis of short-term responses to salt and glycerol hyperosmotic stress in the green alga Dunaliella salina

Author:
Hexin Lv; Minjae Kim; Seunghye Park; Kwangryul Baek; Hyeonjun Oh; Juergen E.W. Polle; EonSeon Jin
Source:
Algal research 2021 v.53 pp. 102147
ISSN:
2211-9264
Subject:
Calvin cycle; Dunaliella salina; algae; carbon metabolism; cells; chromosomes; cluster analysis; culture media; cytoskeleton; enzymes; fatty acids; gene expression; gene expression regulation; gene ontology; genes; glycerol; glycolysis; glyoxylate cycle; models; moieties; osmolarity; osmoregulation; osmotic stress; photorespiration; physiological response; research; salt stress; sequence analysis; starch; transcriptome; transcriptomics; transporters
Abstract:
... Dunaliella salina is a model photosynthetic organism for studying osmoregulation. To further understand the molecular basis of short-term hyperosmotic-stress responses, gene expression was investigated by RNA-Seq of D. salina cells sampled at 15, 30, 60, and 120 min following exposure to salt and glycerol stress. De novo reconstruction of the transcriptome using Illumina paired-end reads generated ...
DOI:
10.1016/j.algal.2020.102147

38. Crystal structure of chloroplastic thioredoxin z defines a type‐specific target recognition

Author:
Théo Le Moigne; Libero Gurrieri; Pierre Crozet; Christophe H. Marchand; Mirko Zaffagnini; Francesca Sparla; Stéphane D. Lemaire; Julien Henri
Source:
plant journal 2021 v.107 no.2 pp. 434-447
ISSN:
0960-7412
Subject:
Calvin cycle; chloroplast thioredoxins; chloroplasts; crystal structure; disulfides; oxidoreductases
Abstract:
... Thioredoxins (TRXs) are ubiquitous disulfide oxidoreductases structured according to a highly conserved fold. TRXs are involved in a myriad of different processes through a common chemical mechanism. Plant TRXs evolved into seven types with diverse subcellular localization and distinct protein target selectivity. Five TRX types coexist in the chloroplast, with yet scarcely described specificities. ...
DOI:
10.1111/tpj.15300

39. Effect of Cold Stress on Growth, Physiological Characteristics, and Calvin-Cycle-Related Gene Expression of Grafted Watermelon Seedlings of Different Gourd Rootstocks

Author:
Kaixing Lu; Jiutong Sun; Qiuping Li; Xueqin Li; Songheng Jin
Source:
Horticulturae 2021 v.7 no.10 pp. -
ISSN:
2311-7524
Subject:
Calvin cycle; Citrullus lanatus; Lagenaria siceraria; antioxidant activity; chlorophyll; cold stress; cold tolerance; gene expression; malondialdehyde; proline; reactive oxygen species; stress tolerance; watermelons
Abstract:
... Recently, grafting has been used to improve abiotic stress resistance in crops. Here, using watermelon ‘Zaojia 8424’ (Citrullus lanatus) as scions, three different gourds (Lagenaria siceraria, 0526, 2505, and 1226) as rootstocks, and non-grafted plants as controls (different plants were abbreviated as 0526, 2505, 1226, and 8424), the effect of cold stress on various physiological and molecular par ...
DOI:
10.3390/horticulturae7100391

40. Effect of drought on photosynthesis, total antioxidant capacity, bioactive component accumulation, and the transcriptome of Atractylodes lancea

Author:
Aqin Zhang; Mengxue Liu; Wei Gu; Ziyun Chen; Yuchen Gu; Lingfeng Pei; Rong Tian
Source:
BMC plant biology 2021 v.21 no.1 pp. 293
ISSN:
1471-2229
Subject:
Atractylodes lancea; Calvin cycle; antioxidant activity; antioxidant enzymes; bioactive compounds; biosynthesis; carbon-oxygen lyases; chemical analysis; chlorophyll; drought; electron transfer; electron transport chain; essential oils; gene expression; genes; medicinal plants; ribulose-bisphosphate carboxylase; sesquiterpenoids; stress tolerance; transcriptome; transcriptomics; water stress
Abstract:
... BACKGROUND: Atractylodes lancea (Thunb.) DC, a medicinal herb belonging to the Asteraceae family, often faces severe drought stress during its growth. Until now, there has been no research on the effect of drought stress on the quality formation of A. lancea. Therefore, the present study aimed to study the effects of drought stress on A. lancea through physical and chemical analysis, and to reveal ...
DOI:
10.1186/s12870-021-03048-9

41. Effect of sugar feedback regulation on major genes and proteins of photosynthesis in sugarcane leaves

Author:
Annelie Marquardt; Robert J. Henry; Frederik C. Botha
Source:
Plant physiology and biochemistry 2021 v.158 pp. 321-333
ISSN:
0981-9428
Subject:
Calvin cycle; Saccharum; canopy; carbon dioxide fixation; chloroplast genes; decarboxylation; gene expression; malate dehydrogenase; oxygen evolving complex; phosphoenolpyruvate carboxylase; plant physiology; ribulose-bisphosphate carboxylase; sucrose; sugarcane
Abstract:
... Productivity of sugarcane (Saccharum spp.) relies upon sucrose production in leaves and movement to sinks. The feedback regulatory effect of sugar upon photosynthesis balances this process involving Phosphoenolpyruvate carboxylase (PEPCase) and Rubisco where greater understanding in this area may allow manipulation to achieve higher yields. Accumulation of sucrose in leaves and decreased photosynt ...
DOI:
10.1016/j.plaphy.2020.11.022

42. Functional characterization of the chlorophyll b reductase gene NYC1 associated with chlorophyll degradation and photosynthesis in Zoysia japonica

Author:
Ke Teng; Penghui Tan; Jin Guan; Di Dong; Lingyun Liu; Yidi Guo; Weier Guo; Yue Yuesen; Xifeng Fan; Juying Wu
Source:
Environmental and experimental botany 2021 v.191 pp. 104607
ISSN:
0098-8472
Subject:
Arabidopsis; Calvin cycle; Zoysia japonica; chlorophyll; chlorophyll b reductase; chloroplasts; electron transport chain; ethylene; fluorescence; genes; genetically modified organisms; mutants; phenotype; photorespiration; photosystem II; reactive oxygen species; sequence analysis; signal transduction; transcriptome; turf grasses; warm season
Abstract:
... Chlorophyll plays essential roles in photosynthesis and its degradation should be regulated precisely. Chlorophyll b reductase encoded by the gene NYC1 is responsible for catalyzing chlorophyll b degradation and maintaining the stability of photosystems. Although NYC1s have been characterized in many plants, their function in the photosynthetic machinery and the underlying regulatory mechanisms at ...
DOI:
10.1016/j.envexpbot.2021.104607

43. Genome-wide characterization, evolution, and expression profiling of FBA gene family in response to light treatments and abiotic stress in Nicotiana tabacum

Author:
Ying Zhao; Fangchan Jiao; Heng Tang; Houjuan Xu; Li Zhang; Hui Wu
Source:
Plant signaling & behavior 2021 v.16 no.10 pp. 1938442
ISSN:
1559-2324
Subject:
Calvin cycle; Nicotiana tabacum; abiotic stress; behavior; chloroplasts; cold; drought; fructose-bisphosphate aldolase; genes; gluconeogenesis; glycolysis; phylogeny
Abstract:
... Fructose 1,6-bisphosphate aldolase (FBA) as a key enzyme play crucial roles in glycolysis, gluconeogenesis and Calvin cycle processes in plants. However, limited information is known regarding FBA genes in Nicotiana tabacum. In this study, 16 FBAs were identified and characterized in Nicotiana tabacum. Phylogenetic analysis revealed that these genes can be categorized as type I (NtFBA1-10 located ...
DOI:
10.1080/15592324.2021.1938442

44. Increase of N2O production during nitrate reduction after long-term sulfide addition in lake sediment microcosms

Author:
Shengjie Li; Yunmeng Pang; Guodong Ji
Source:
Environmental pollution 2021 v.291 pp. 118231
ISSN:
0269-7491
Subject:
Calvin cycle; Thiobacillus; carbon; cell growth; cytochromes; denitrification; freshwater; greenhouse effect; metagenomics; nitrate reduction; nitrates; nitric oxide; nitrogen; nitrous oxide; nitrous oxide production; oxidation; oxidoreductases; ozone; sediments; stratosphere; sulfides; sulfur
Abstract:
... Microbial denitrification is a main source of nitrous oxide (N₂O) emissions which have strong greenhouse effect and destroy stratospheric ozone. Though the importance of sulfide driven chemoautotrophic denitrification has been recognized, its contribution to N₂O emissions in nature remains elusive. We built up long-term sulfide-added microcosms with sediments from two freshwater lakes. Chemistry a ...
DOI:
10.1016/j.envpol.2021.118231

45. Integrated physiological and chloroplast proteome analysis of wheat seedling leaves under salt and osmotic stresses

Author:
Dong Zhu; Fei Luo; Rong Zou; Junxian Liu; Yueming Yan
Source:
Journal of proteomics 2021 v.234 pp. 104097
ISSN:
1874-3919
Subject:
Calvin cycle; abscisic acid; amino acid metabolism; carbon; chlorophyll; chloroplast proteins; chloroplasts; gas exchange; methyl jasmonate; nitrogen metabolism; osmotic stress; proteolysis; proteomics; salt stress; seedlings; two-dimensional gel electrophoresis; ultrastructure; wheat
Abstract:
... In this study, we performed an integrated physiological and chloroplast proteome analysis of wheat seedling leaves under salt and osmotic stresses by label-free based quantitative proteomic approach. Both salt and osmotic stresses significantly increased the levels of abscisic acid and methyl jasmonate and led to damages of chloroplast ultrastructure. Main parameters of chlorophyll fluorescence an ...
DOI:
10.1016/j.jprot.2020.104097

46. Linkage between bacterial community-mediated hydrogen peroxide detoxification and the growth of Microcystis aeruginosa

Author:
Minkyung Kim; Wonjae Kim; Yunho Lee; Woojun Park
Source:
Water research 2021 v.207 pp. 117784
ISSN:
0043-1354
Subject:
Brevundimonas; Calvin cycle; DNA repair; Microcystis aeruginosa; Ochrobactrum; bacterial communities; catalase; coculture; freshwater; genomics; glutathione; hydrogen peroxide; light intensity; microcystins; microorganisms; oxidative stress; peroxiredoxin; research; toxicity; transcriptomics
Abstract:
... Microcystis aeruginosa, an important cyanobloom-forming cyanobacterium, is sensitive to the high light intensity and consequent oxidative stress. Based on our genomic and transcriptomic analyses of H₂O₂-treated cells, many genes involved in photosynthesis, Calvin cycle, and microcystin synthesis were downregulated, whereas several toxin-antitoxin genes, DNA repair genes, and H₂O₂-defense systems s ...
DOI:
10.1016/j.watres.2021.117784

47. Low Light Alters the Photosynthesis Process in Cigar Tobacco via Modulation of the Chlorophyll Content, Chlorophyll Fluorescence, and Gene Expression

Author:
Xiaoying Wu; Rayyan Khan; Huajun Gao; Haobao Liu; Juan Zhang; Xinghua Ma
Source:
Agriculture (Basel) 2021 v.11 no.8 pp. -
ISSN:
2077-0472
Subject:
Calvin cycle; agriculture; carbon; carbon dioxide; chlorophyll; energy; gene expression; genes; light intensity; photosystem II; ribulose-bisphosphate carboxylase; specific leaf area; specific leaf weight; tobacco
Abstract:
... Shading or low light (LL) conditions are a key and necessary cultivation technique in cigar wrapper tobacco production. However, the effect of low light on the photosynthesis in cigar tobacco is not clear. Therefore, this study is designed to know the photosynthesis of cigar tobacco under different light intensities (T200, T100, and T50 μmol m⁻² s⁻¹). The results reveal that under low light, T50 e ...
DOI:
10.3390/agriculture11080755

48. Mariculture wastewater treatment with Bacterial-Algal Coupling System (BACS): Effect of light intensity on microalgal biomass production and nutrient removal

Author:
Yedong Gao; Liang Guo; Qianru Liao; Zengshuai Zhang; Yangguo Zhao; Mengchun Gao; Chunji Jin; Zonglian She; Guangce Wang
Source:
Environmental research 2021 v.201 pp. 111578
ISSN:
0013-9351
Subject:
Calvin cycle; ammonium nitrogen; biomass production; bioremediation; chemical oxygen demand; enzymes; industry; light intensity; mariculture; microalgae; research; total phosphorus; tricarboxylic acid cycle; wastewater; wastewater treatment
Abstract:
... Mariculture wastewater generated from the mariculture industry has increased public concern due to its impact on the sustainability of aquatic environments and aquaculture practices. Herein, the Bacterial-Algal Coupling System was applied for mariculture wastewater treatment. Microalgae growth in heterotrophy and mixotrophy (2000–8000 lux) was first compared. The best microalgal growth and nutrien ...
DOI:
10.1016/j.envres.2021.111578

49. Metagenomic and 14C tracing evidence for autotrophic microbial CO2 fixation in paddy soils

Author:
Ke‐Qing Xiao; Ti‐Da Ge; Xiao‐Hong Wu; Caroline L. Peacock; Zhen‐Ke Zhu; Jingjing Peng; Peng Bao; Jin‐Shui Wu; Yong‐Guan Zhu
Source:
Environmental microbiology 2021 v.23 no.2 pp. 924-933
ISSN:
1462-2912
Subject:
Calvin cycle; carbon dioxide; carbon dioxide fixation; genetic traits; humin; metagenomics; microbial biomass; microbial carbon; paddies; paddy soils; ribulose-bisphosphate carboxylase; soil organic carbon; China
Abstract:
... Autotrophic carbon dioxide (CO₂) fixation by microbes is ubiquitous in the environment and potentially contributes to the soil organic carbon (SOC) pool. However, the multiple autotrophic pathways of microbial carbon assimilation and fixation in paddy soils remain poorly characterized. In this study, we combine metagenomic analysis with ¹⁴C‐labelling to investigate all known autotrophic pathways a ...
DOI:
10.1111/1462-2920.15204

50. Mixed red and blue light promotes tomato seedlings growth by influencing leaf anatomy, photosynthesis, CO2 assimilation and endogenous hormones

Author:
Yan Li; Zhongliang Liu; Qinghua Shi; Fengjuan Yang; Min Wei
Source:
Scientia horticulturae 2021 v.290 pp. 110500
ISSN:
0304-4238
Subject:
Calvin cycle; Solanum lycopersicum; biomass production; biosynthesis; blue light; carbohydrates; carbon dioxide; chlorophyll; gas exchange; indole acetic acid; leaf anatomy; photosynthetic electron transport; ribulose-bisphosphate carboxylase; seedlings; stomatal conductance; tomatoes; white light
Abstract:
... The light frequency of red (R) and blue (B) plays a crucial role within plant growth cycle. Whereas, the relationship between the metabolic pathways involved in photosynthesis and carbohydrate accumulation in tomato seedling and hormone regulation still needs further investigation. This research comprehensively analyzed changes in leaf anatomy, stomatal traits, pigment content, gas exchange parame ...
DOI:
10.1016/j.scienta.2021.110500

51. New insights into the effect of NdhO levels on cyanobacterial cell death triggered by high temperature

Author:
Jiaohong Zhao; Yuanyuan Jiang; Yuhao Tian; Jun Mao; Lanzhen Wei; Weimin Ma
Source:
Functional plant biology 2021 v.49 no.6 pp. 533-541
ISSN:
1445-4408
Subject:
Calvin cycle; cell death; electron transfer; plant biology; reactive oxygen species; synergism; temperature
Abstract:
... NdhO, a regulatory oxygenic photosynthesis-specific subunit, is close to the ferredoxin-binding site of cyanobacterial NDH-1, and its levels are negatively associated with the rates of cyclic electron transfer around PSI mediated by NDH-1 (NDH-CET). However, the effect of NdhO levels on cyanobacterial cell death triggered by high temperature remains elusive. Here, our results uncovered a synergist ...
DOI:
10.1071/FP21097

52. Nitric Oxide and Its Interaction with Hydrogen Peroxide Enhance Plant Tolerance to Low Temperatures by Improving the Efficiency of the Calvin Cycle and the Ascorbate–Glutathione Cycle in Cucumber Seedlings

Author:
Pei Wu; Chunyan Xiao; Jinxia Cui; Baoyu Hao; Wenbo Zhang; Zhifeng Yang; Golam Jalal Ahammed; Huiying Liu; Huimei Cui
Source:
Journal of plant growth regulation 2021 v.40 no.6 pp. 2390-2408
ISSN:
0721-7595
Subject:
Calvin cycle; NAD(P)H oxidase (H2O2-forming); ascorbic acid; beta-fructofuranosidase; carboxylation; cucumbers; fructose; genes; glucose; glutathione; hydrogen peroxide; nitric oxide; plant growth; ribulose-bisphosphate carboxylase; starch; sucrose; sucrose synthase; sucrose-phosphate synthase; temperature
Abstract:
... The present study was aimed to assess the effect of nitric oxide (NO) and the interaction of NO with hydrogen peroxide (H₂O₂) on plant tolerance to low temperatures in cucumber seedlings. Exogenous NO significantly increased the endogenous NO content, initial and total activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO), RuBisCO carboxylation rate (Vc,ₘₐₓ), RuBP regeneration ra ...
DOI:
10.1007/s00344-020-10242-w

53. Nitric Oxide-Mediated Enhancement in Photosynthetic Efficiency, Ion Uptake and Carbohydrate Metabolism that Boosts Overall Photosynthetic Machinery in Mustard Plants

Author:
Fareen Sami; Husna Siddiqui; Shamsul Hayat
Source:
Journal of plant growth regulation 2021 v.40 no.3 pp. 1088-1110
ISSN:
0721-7595
Subject:
Calvin cycle; antioxidant activity; carbohydrate content; carbon; carbon metabolism; carbonate dehydratase; chlorophyll; foliar spraying; fructose; fumarate hydratase; gas exchange; glucose; glycolysis; growth and development; hexokinase; homeostasis; ion transport; magnesium; nitrate reductase; nitric oxide; nitrogen; nitrogen metabolism; nitroprusside; phosphorus; plant growth; plant growth substances; potassium; ribulose-bisphosphate carboxylase; starch; succinate dehydrogenase (quinone); sucrose; sulfur; tricarboxylic acid cycle
Abstract:
... Nitric oxide (NO) acts as a gaseous diffusible plant growth regulator. It plays an important role in growth and development of plants. Therefore, in present study mustard plants were sprayed with different concentrations of sodium nitroprusside (0, 10–⁴ M, 10–⁵ M and 10–⁶ M), a donor of NO, at 25 days after sowing to assess different physiological parameters. The results indicate that foliar spray ...
DOI:
10.1007/s00344-020-10166-5

54. Phosphorus-based metabolic pathway tracers in surface waters

Author:
Vlastimil Packa; Todd Howell; Vadim Bostan; Vasile I. Furdui
Source:
Environmental science and pollution research 2021 v.28 no.23 pp. 29498-29508
ISSN:
0944-1344
Subject:
Calvin cycle; adenosine; fructose; glucose 6-phosphate; glycolysis; ion exchange chromatography; lakes; mass spectrometry; metabolites; multivariate analysis; pentoses; pollution; reactive phosphorus; research; rivers; soluble phosphates; total phosphorus; Lake Ontario
Abstract:
... Trophic status in surface waters has been mostly monitored by measuring soluble reactive phosphorus (SRP) and total phosphorus (TP). Additional to these common parameters, a two-dimensional ion chromatography mass spectrometry (2D-IC-MS) method was used to simultaneously measure soluble phosphate (Pi), pyrophosphate (PPi), and eleven phosphate-containing metabolites (P-metabolites) in Lake Ontario ...
DOI:
10.1007/s11356-021-12697-0

55. Photosynthesis research under climate change

Author:
Sajad Hussain; Zaid Ulhassan; Marian Brestic; Marek Zivcak; Weijun Zhou; Suleyman I. Allakhverdiev; Xinghong Yang; Muhammad Ehsan Safdar; Wenyu Yang; Weiguo Liu
Source:
Photosynthesis research 2021 v.150 no.1-3 pp. 5-19
ISSN:
0166-8595
Subject:
Calvin cycle; carbon; carbon dioxide; carbon metabolism; climate change; electron transfer; energy; food security; genetic engineering; light intensity; mesophyll; research; ribulose-bisphosphate carboxylase; stomatal conductance; temperature; thylakoids
Abstract:
... Increasing global population and climate change uncertainties have compelled increased photosynthetic efficiency and yields to ensure food security over the coming decades. Potentially, genetic manipulation and minimization of carbon or energy losses can be ideal to boost photosynthetic efficiency or crop productivity. Despite significant efforts, limited success has been achieved. There is a need ...
DOI:
10.1007/s11120-021-00861-z

56. Physiological, metabolic, and stomatal adjustments in response to salt stress in Jatropha curcas

Author:
Marcelo F. Pompelli; Pedro P.B. Ferreira; Agnaldo R.M. Chaves; Regina C.B.Q. Figueiredo; Auxiliadora O. Martins; Alfredo Jarma-Orozco; Arvind Bhatt; Willian Batista-Silva; Laurício Endres; Wagner L. Araújo
Source:
Plant physiology and biochemistry 2021 v.168 pp. 116-127
ISSN:
0981-9428
Subject:
Calvin cycle; Jatropha curcas; carbon; crop production; electron transfer; gas exchange; metabolites; nutrition; plant physiology; salinity; salt stress; salt tolerance; tricarboxylic acid cycle
Abstract:
... Salinity is a major issue affecting photosynthesis and crop production worldwide. High salinity induces both osmotic and ionic stress in plant tissues as a result of complex interactions among morphological, physiological, and biochemical processes. Salinity, in turn, can provoke inactivation of some enzymes in the Calvin-Benson cycle and therefore affect the fine adjustment of electron transport ...
DOI:
10.1016/j.plaphy.2021.09.039

57. Proteomic and biochemical responses to different concentrations of CO2 suggest the existence of multiple carbon metabolism strategies in Phaeodactylum tricornutum

Author:
Songcui Wu; Wenhui Gu; Shuao Jia; Lepu Wang; Lijun Wang; Xuehua Liu; Lu Zhou; Aiyou Huang; Guangce Wang
Source:
Biotechnology for biofuels 2021 v.14 no.1 pp. 235
ISSN:
1754-6834
Subject:
Calvin cycle; Phaeodactylum tricornutum; bicarbonates; biofuels; biomass production; biotechnology; carbon dioxide; carbon dioxide fixation; carbon metabolism; carbonate dehydratase; energy; enzyme activity; feedstocks; glycolysis; industrialization; industry; inorganic carbon; microalgae; nitrogen; pentose phosphate cycle; photorespiration; proteome; proteomics; tricarboxylic acid cycle; urea cycle
Abstract:
... BACKGROUND: Diatoms are well known for high photosynthetic efficiency and rapid growth rate, which are not only important oceanic primary producer, but also ideal feedstock for microalgae industrialization. Their high success is mainly due to the rapid response of photosynthesis to inorganic carbon fluctuations. Thus, an in-depth understanding of the photosynthetic carbon fixation mechanism of dia ...
DOI:
10.1186/s13068-021-02088-5

58. Reclassification of Sphaerotilus natans subsp. sulfidivorans Gridneva et al. 2011 as Sphaerotilus sulfidivorans sp. nov. and comparative genome analysis of the genus Sphaerotilus

Author:
Margarita Y. Grabovich; Dmitry D. Smolyakov; Alexey V. Beletsky; Andrey V. Mardanov; Maria V. Gureeva; Nikita D. Markov; Tatyana S. Rudenko; Nikolai V. Ravin
Source:
Archives of microbiology 2021 v.203 no.4 pp. 1595-1599
ISSN:
0302-8933
Subject:
Calvin cycle; Sphaerotilus natans; sequence analysis; sulfur; taxonomic revisions
Abstract:
... Filamentous iron oxides accumulating bacteria Sphaerotilus natans subsp. natans and S. natans subsp. sulfidivorans were described as subspecies based on 99.7% identity of their 16S rRNA sequences, in spite of important physiological difference. The ANI between their genomes was 94.7%, which indicate their assignment to different species. S. natans subsp. sulfidivorans and S. montanus possess genes ...
DOI:
10.1007/s00203-020-02158-6

59. Stepwise optimization of genetic RuBisCO-equipped Escherichia coli for low carbon-footprint protein and chemical production

Author:
Shih-I Tan; I-Son Ng
Source:
Green chemistry 2021 v.23 no.13 pp. 4800-4813
ISSN:
1463-9270
Subject:
Calvin cycle; Escherichia coli; carbon; carbon dioxide; carbon footprint; carbon sequestration; carbonate dehydratase; genomics; green chemistry; lysine decarboxylase; oxygenases; ribulose-bisphosphate carboxylase
Abstract:
... Bio-mitigation of carbon dioxide has recently attracted more research focus because it is a sustainable and ecofriendly way of carbon conversion to a variety of indispensable chemicals. However, studies regarding the recombinant strain development toward simultaneous chemical production and CO₂ assimilation in E. coli are limited and the reported studies are challenged with critically low efficien ...
DOI:
10.1039/d1gc00456e

60. Synthetic Biology Approaches To Enhance Microalgal Productivity

Author:
Mihris Ibnu Saleem Naduthodi; Nico J. Claassens; Sarah D’Adamo; John van der Oost; Maria J. Barbosa
Source:
Trends in biotechnology 2021 v.39 no.10 pp. 1019-1036
ISSN:
0167-7799
Subject:
Calvin cycle; biofuels; biotechnology; carbon dioxide; carbon dioxide fixation; microalgae; synthetic biology
Abstract:
... The major bottleneck in commercializing biofuels and other commodities produced by microalgae is the high cost associated with phototrophic cultivation. Improving microalgal productivities could be a solution to this problem. Synthetic biology methods have recently been used to engineer the downstream production pathways in several microalgal strains. However, engineering upstream photosynthetic a ...
DOI:
10.1016/j.tibtech.2020.12.010

61. TMT-based quantitative proteomic analysis of the effects of Pseudomonas syringae pv. tabaci (Pst) infection on photosynthetic function and the response of the MAPK signaling pathway in tobacco leaves

Author:
Hongwei Sun; Hongbo Zhang; Zisong Xu; Yue Wang; Xiaoqian Liu; Yuanyuan Li; Bei Tian; Guangyu Sun; Huihui Zhang
Source:
Plant physiology and biochemistry 2021 v.166 pp. 657-667
ISSN:
0981-9428
Subject:
Calvin cycle; H-transporting ATP synthase; Pseudomonas syringae pv. tabaci; carbon dioxide; chlorophyll; energy; gene expression regulation; pathogens; photosynthetic electron transport; photosystem II; plant physiology; proteomics; tobacco
Abstract:
... To reveal the mechanism of photosynthesis inhibition by infection and the response of the MAPK signaling pathway to pathogen infection, tobacco leaves were inoculated with Pseudomonas syringae pv. tabaci (Pst), and the effects of Pst infection on photosynthesis of tobacco leaves were studied by physiological and proteomic techniques, with a focus on MAPK signaling pathway related proteins. Pst inf ...
DOI:
10.1016/j.plaphy.2021.06.049

62. The Composition and Primary Metabolic Potential of Microbial Communities Inhabiting the Surface Water in the Equatorial Eastern Indian Ocean

Author:
Changling Ding; Chao Wu; Congcong Guo; Jiang Gui; Yuqiu Wei; Jun Sun
Source:
Biology 2021 v.10 no.3 pp. -
ISSN:
2079-7737
Subject:
Calvin cycle; Prochlorococcus; alpha-Proteobacteria; carbon dioxide fixation; ecosystems; functional diversity; gamma-Proteobacteria; genes; metagenomics; nitrates; nitrites; nitrogen; nitrogen cycle; nitrogen fixation; population structure; surface water; Indian Ocean
Abstract:
... Currently, there is scant information about the biodiversity and functional diversity of microbes in the eastern Indian Ocean (EIO). Here, we used a combination of high-throughput sequencing of 16S rRNA genes and a metagenomic approach to investigate the microbial population structure and its metabolic function in the equatorial EIO. Our results show that Cyanobacterial Prochlorococcus made up the ...
DOI:
10.3390/biology10030248

63. The Phosphofructokinase Isoform AtPFK5 Is a Novel Target of Plastidic Thioredoxin-f-Dependent Redox Regulation

Author:
Natalia Hess; Simon Richter; Michael Liebthal; Karl-Josef Dietz; Angelika Mustroph
Source:
Antioxidants 2021 v.10 no.3 pp. -
ISSN:
2076-3921
Subject:
Calvin cycle; carbohydrates; chloroplast thioredoxins; chloroplasts; glycolysis; lighting; mutants; oxidation; pentose phosphate cycle; phosphofructokinases; plant growth
Abstract:
... The chloroplast primary metabolism is of central importance for plant growth and performance. Therefore, it is tightly regulated in order to adequately respond to multiple environmental conditions. A major fluctuation that plants experience each day is the change between day and night, i.e., the change between assimilation and dissimilation. Among other mechanisms, thioredoxin-mediated redox regul ...
DOI:
10.3390/antiox10030401

64. The genome sequence of the giant phototrophic gammaproteobacterium Thiospirillum jenense gives insight into its physiological properties and phylogenetic relationships

Author:
Johannes F. Imhoff; Terrance E. Meyer; John A. Kyndt
Source:
Archives of microbiology 2021 v.203 no.1 pp. 97-105
ISSN:
0302-8933
Subject:
Calvin cycle; Halochromatium; Rhabdochromatium; Rhodoferax antarcticus; Rhodopseudomonas palustris; Thiohalocapsa; Thiorhodovibrio; Thiospirillum; bacteria; carbon dioxide fixation; cell structures; complement; cytochrome-c oxidase; malate dehydrogenase; metagenomics; multigene family; new species; nitrogenase; nucleotide sequences; oxidation; oxygen; photosynthetic reaction centers; phylogeny; ribulose-bisphosphate carboxylase; sulfates; sulfur; tricarboxylic acid cycle
Abstract:
... In a conserved culture of the purple sulfur bacterium Thiospirillum jenense DSM216ᵀ, cells of this species were easily recognized by cell morphology, large-size spirilla and visible flagellar tuft. The Tsp. jenense genome is 3.22 Mb in size and has a GC content of 48.7 mol%. It was readily identified as a member of the Chromatiaceae by the complement of proteins in its genome. A whole genome compa ...
DOI:
10.1007/s00203-020-02006-7

65. The molecular mechanisms of Chlorella sp. responding to high CO2: A study based on comparative transcriptome analysis between strains with high- and low-CO2 tolerance

Author:
Jun Li; Kehou Pan; Xuexi Tang; Yun Li; Baohua Zhu; Yan Zhao
Source:
Science of the total environment 2021 v.763 pp. 144185
ISSN:
0048-9697
Subject:
Calvin cycle; Chlorella; H-transporting ATP synthase; acclimation; adenosinetriphosphatase; air; biosequestration; carbon dioxide; carbon dioxide fixation; electron transfer; environment; genes; glycolysis; microalgae; organic carbon; pH stability; phosphorylation; population growth; transcription (genetics); transcriptomics; transportation; tricarboxylic acid cycle
Abstract:
... High CO₂ acclimation for microalgae has attracted large research attention owing to the usefulness of microalgae in bio-sequestration of CO₂ from the emission source. In this study, one high CO₂ tolerant (LAMB 31) and non-tolerant (LAMB 122) Chlorella sp. strains were transferred from air to 40% CO₂, during which four time points were chosen for comparative transcriptome analysis. Gene changes sta ...
DOI:
10.1016/j.scitotenv.2020.144185

66. The toxicological impact of the sunscreen active ingredient octinoxate on the photosynthesis activity of Chlorella sp.

Author:
Lin Tian; Lei Huang; Hongwu Cui; Feifei Yang; Yongfu Li
Source:
Marine environmental research 2021 v.171 pp. 105469
ISSN:
0141-1136
Subject:
Calvin cycle; Chlorella; active ingredients; energy; microalgae; oxidative stress; photosynthetic electron transport; pollution; reactive oxygen species; research; solar radiation; sunscreens; toxicology
Abstract:
... Products designed to filter ultraviolet (UV) light are responsible for growing levels of anthropogenic environmental contamination. Octinoxate (ONT) is among the most common UV filtering active ingredients in cosmetics and sunscreens. The present study was designed to evaluate the toxicological effects of ONT on the photosynthetic activity of the Chlorella species of marine microalgae. These analy ...
DOI:
10.1016/j.marenvres.2021.105469

67. Thin cell layer cultures of Chlamydomonas reinhardtii L159I-N230Y, pgrl1 and pgr5 mutants perform enhanced hydrogen production at sunlight intensity

Author:
Valéria Nagy; Anna Podmaniczki; André Vidal-Meireles; Soujanya Kuntam; Éva Herman; László Kovács; Dávid Tóth; Alberto Scoma; Szilvia Z. Tóth
Source:
Bioresource technology 2021 v.333 pp. 125217
ISSN:
0960-8524
Subject:
Calvin cycle; Chlamydomonas reinhardtii; absorbents; chlorophyll; electron transfer; hydrogen; hydrogen production; light intensity; mutants; renewable energy sources; solar radiation; technology
Abstract:
... Photobiological hydrogen (H₂) production is a promising renewable energy source. HydA hydrogenases of green algae are efficient but O₂-sensitive and compete for electrons with CO₂-fixation. Recently, we established a photoautotrophic H₂ production system based on anaerobic induction, where the Calvin-Benson cycle is inactive and O₂ scavenged by an absorbent. Here, we employed thin layer cultures, ...
DOI:
10.1016/j.biortech.2021.125217

68. Transcriptomic analysis for phosphorus limitation-induced β-glucans accumulation in Chlorella sorokiniana SCSIO 46784 during the early phase of growth

Author:
Xuejie Jin; Sanqiang Gong; Bingjie Yang; Jiayi Wu; Tao Li; Hualian Wu; Houbo Wu; Wenzhou Xiang
Source:
Algal research 2021 v.54 pp. 102208
ISSN:
2211-9264
Subject:
Calvin cycle; Chlorella sorokiniana; biosynthesis; carbon; carbon dioxide; carbon dioxide fixation; carbon metabolism; diacylglycerols; economic feasibility; fatty acids; genes; genetic engineering; gluconeogenesis; glycolysis; microalgae; pentose phosphate cycle; phosphorus; protein synthesis; research; starch; sucrose; transcriptomics; triacylglycerols; tricarboxylic acid cycle
Abstract:
... Algal β-glucans have received attention in recent years, but little is understood for the pattern and molecular mechanism of β-glucans accumulation in Chlorella, a more economically feasible microalga. In the present study, P-limited conditions were found to substantially inhibit the microalgal growth, reduce the lipid and protein production but induce the accumulation of β-glucans and total carbo ...
DOI:
10.1016/j.algal.2021.102208

69. Up-regulated glycolysis, TCA, fermentation and energy metabolism promoted the sugar receding in ‘Shixia’ longan (Dimocarpus longan Lour.) pulp

Author:
Tao Luo; Liang Shuai; Tingting Lai; Lingyan Liao; Jing Li; Zhenhua Duan; Xiaoqing Xue; Dongmei Han; Zhenxian Wu
Source:
Scientia horticulturae 2021 v.281 pp. 109998
ISSN:
0304-4238
Subject:
Calvin cycle; Dimocarpus longan; beta-fructofuranosidase; cadmium; fermentation; fructose; glucose; glycolysis; inorganic matter; isoamylase; longans; phosphorylase; proteomics; pulp; starch; sucrose; sucrose synthase; sucrose-phosphate synthase; sweetness; total soluble solids; vacuoles
Abstract:
... Sugar receding, a drastic decrease of total soluble solid (TSS) in pulp, leads to decreased sweetness and deterioration of longan fruits during on-tree preservation. Although soluble acid invertases were proved as key factors regulating sugar receding, systematic analysis of the other pathways regulating this process was still lacked. Significant decreased TSS (by 40.61%) and sucrose (by 66.71%) b ...
DOI:
10.1016/j.scienta.2021.109998

70. A Genetic Screen to Identify New Molecular Players Involved in Photoprotection qH in Arabidopsis thaliana

Author:
Pierrick Bru; Sanchali Nanda; Alizée Malnoë
Source:
Plants 2020 v.9 no.11 pp. -
ISSN:
2223-7747
Subject:
Arabidopsis thaliana; Calvin cycle; chlorophyll; energy; fluorescence; genes; image analysis; induced mutation; mutants; phenotype; radiation resistance; sequence analysis; transcription (genetics)
Abstract:
... Photosynthesis is a biological process which converts light energy into chemical energy that is used in the Calvin–Benson cycle to produce organic compounds. An excess of light can induce damage to the photosynthetic machinery. Therefore, plants have evolved photoprotective mechanisms such as non-photochemical quenching (NPQ). To focus molecular insights on slowly relaxing NPQ processes in Arabido ...
DOI:
10.3390/plants9111565

71. A Novel and Potentially Multifaceted Dehydroascorbate Reductase Increasing the Antioxidant Systems is Induced by Beauvericin in Tomato

Author:
Martina Loi; Silvana De Leonardis; Giuseppina Mulè; Antonio F. Logrieco; Costantino Paciolla
Source:
Antioxidants 2020 v.9 no.5 pp. -
ISSN:
2076-3921
Subject:
Calvin cycle; Solanum lycopersicum; Western blotting; antioxidant activity; antioxidants; ascorbic acid; chloroplasts; dehydroascorbic acid; dietary supplements; enzyme activity; glutathione; glutathione dehydrogenase (ascorbate); mass spectrometry; mycotoxins; oxidative stress; plant response; polyacrylamide gel electrophoresis; sodium dodecyl sulfate; tomatoes
Abstract:
... Dehydroascorbate reductases (DHARs) are important enzymes that reconvert the dehydroascorbic acid (DHA) into ascorbic acid (ASC). They are involved in the plant response to oxidative stress, such as that induced by the mycotoxin beauvericin (BEA). Tomato plants were treated with 50 µM of BEA; the main antioxidant compounds and enzymes were evaluated. DHARs were analyzed in the presence of differen ...
DOI:
10.3390/antiox9050435

72. A Synthetic Photorespiratory Shortcut Enhances Photosynthesis to Boost Biomass and Grain Yield in Rice

Author:
Li-Min Wang; Bo-Ran Shen; Bo-Di Li; Chuan-Ling Zhang; Min Lin; Pan-Pan Tong; Li-Li Cui; Zhi-Sheng Zhang; Xin-Xiang Peng
Source:
Molecular plant 2020 v.13 no.12 pp. 1802-1815
ISSN:
1674-2052
Subject:
(S)-2-hydroxy-acid oxidase; Calvin cycle; Escherichia coli; Oryza sativa; assays; biomass production; carbohydrates; carbon; carbon dioxide; catalase; chloroplast transit peptides; chloroplasts; energy balance; genes; grain yield; phenotype; photorespiration; rice; seasons; seed set; transcriptomics; transgenic plants
Abstract:
... Several photorespiratory bypasses have been introduced into plants and shown to improve photosynthesis by increasing chloroplastic CO₂ concentrations or optimizing energy balance. We recently reported that an engineered GOC bypass could increase photosynthesis and productivity in rice. However, the grain yield of GOC plants was unstable, fluctuating in different cultivation seasons because of vary ...
DOI:
10.1016/j.molp.2020.10.007

73. A multiphase flux balance model reveals flexibility of central carbon metabolism in guard cells of C3 plants

Author:
X. L. Joshua Tan; C. Y. Maurice Cheung
Source:
plant journal 2020 v.104 no.6 pp. 1648-1656
ISSN:
0960-7412
Subject:
Calvin cycle; apoplast; carbon metabolism; diphosphate-fructose-6-phosphate 1-phosphotransferase; guard cells; malates; metabolites; models; pentose phosphate cycle; sucrose; tonoplast
Abstract:
... Experimental research into guard cell metabolism has revealed the roles of the accumulation of various metabolites in guard cell function, but a comprehensive understanding of their metabolism over the diel cycle is still incomplete due to the limitations of current experimental methods. In this study we constructed a four‐phase flux balance model of guard cell metabolism to investigate the change ...
DOI:
10.1111/tpj.15027

74. A single nucleotide substitution at the 3′-end of SBPase gene involved in Calvin cycle severely affects plant growth and grain yield in rice

Author:
Chun Li; Na Li; Rui Huang; Congping Chen; Jia Guo; Xiaorong Yang; Xiangyu Zhang; Changhui Sun; Xiaojian Deng; Pingrong Wang
Source:
BMC plant biology 2020 v.20 no.1 pp. 345
ISSN:
1471-2229
Subject:
Calvin cycle; Oryza sativa; amino acids; carbon dioxide fixation; chloroplasts; developmental stages; genes; grain yield; leaves; mutants; phenotype; plant growth; point mutation; rice; sequence analysis; single nucleotide polymorphism
Abstract:
... BACKGROUND: Calvin cycle plays a crucial role in carbon fixation which provides the precursors of organic macromolecules for plant growth and development. Currently, no gene involved in Calvin cycle has been identified in monocotyledonous plants through mutant or/and map-based cloning approach. RESULTS: Here, we isolated a low-tillering mutant, c6635, in rice (Oryza sativa). The mutant displayed l ...
DOI:
10.1186/s12870-020-02541-x

75. Alleviation of cadmium toxicity by mercapto-triazole priming in wheat

Author:
Arruje Hameed; Amjad Hameed; Matloob Ahmad; Tahir Farooq
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2020 v.66 no.11 pp. 1467-1480
ISSN:
1476-3567
Subject:
Calvin cycle; Triticum; antioxidant enzymes; cadmium; chlorophyll; enzyme activity; esterases; genetics; germination; oxidants; peroxidase; phosphates; protein content; proteins; seed priming; seedlings; sugars; superoxide dismutase; toxicity; triazoles; wheat
Abstract:
... Cadmium happens to interfere with chlorophyll synthesis, calvin cycle and phosphate pathway and the resulting changes in biochemical attributes induce disorders in physiology, biochemistry and genetics of the germinating plants. Its hazardous effects disturb the phenolic contents, sugars, soluble proteins and activities of antioxidant enzymes. We employed mercapto-triazoles as wheat seed priming a ...
DOI:
10.1080/03650340.2020.1763965

76. Calcinated MIL-100(Fe) as a CO2 adsorbent to promote biomass productivity of Arthrospira platensis cells

Author:
Jun Cheng; Yanxia Zhu; Ke Li; Hongxiang Lu; Zhengzhan Shi
Source:
Science of the total environment 2020 v.699 pp. 134375
ISSN:
0048-9697
Subject:
Arthrospira platensis; Calvin cycle; adsorbents; bicarbonates; biomass production; carbon dioxide; carbon dioxide fixation; cell growth; coordination polymers; culture media; dissolved inorganic carbon; fractal dimensions; iron; microalgae
Abstract:
... In order to solve the problems of short residence time and low diffusion of CO₂ gas in microalgal solution, calcinated metal-organic framework MIL-100(Fe) were first used as CO₂ adsorbents to promote the growth of Arthrospira platensis cells by increasing carbon fixation. The adsorbent (MIL-100(Fe)-4 h) containing unsaturated metal sites, improved the conversion of CO₂ to dissolved inorganic carbo ...
DOI:
10.1016/j.scitotenv.2019.134375

77. Carbon Footprint of Biomimetic Carbon Fixation by Immobilizing Nature’s CO₂-sequestering Enzyme and Regenerating Its Energy Carrier

Author:
Kyuha Lee; J. Parker Evans; Sriram Satagopan; Yuan Sun; Jon R. Parquette; Vishnu Baba Sundaresan; F. Robert Tabita; Bhavik R. Bakshi
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.45 pp. 16833-16841
ISSN:
2168-0485
Subject:
3-phosphoglyceric acid; Calvin cycle; adenosine triphosphate; biomimetics; carbon dioxide; carbon dioxide fixation; carbon footprint; chloroplasts; climate change; electrochemistry; energy; green chemistry; inventories; ribulose 1,5-diphosphate; ribulose-bisphosphate carboxylase; serine
Abstract:
... In the Calvin cycle of photosynthesis, ribulose-1,5-bisphosphate carboxylase/oxygenase (RubisCO) catalyzes the conversion of ribulose 1,5-bisphosphate to 3-phosphoglyceric acid (3-PGA) while incorporating atmospheric CO₂ into an organic molecule. Thus, RubisCO is nature’s CO₂-sequestering enzyme that is present in chloroplasts. As an effort to mitigate climate change, biomimetic carbon fixation te ...
DOI:
10.1021/acssuschemeng.0c05498

78. Chlorophyll a Fluorescence Transient and 2-Dimensional Electrophoresis Analyses Reveal Response Characteristics of Photosynthesis to Heat Stress in Malus. ‘Prairifire’

Author:
Tao Wang; Siqian Luo; Yingli Ma; Lingyu Li; Yinfeng Xie; Wangxiang Zhang
Source:
Plants 2020 v.9 no.8 pp. -
ISSN:
2223-7747
Subject:
Calvin cycle; Malus; chlorophyll; cultivars; electron transfer; flowering; fluorescence; heat stress; leaves; light harvesting complex; ornamental woody plants; oxygen evolving complex; stomatal conductance; stomatal movement; subtropics; summer; transketolase; two-dimensional gel electrophoresis
Abstract:
... Flowering crabapples are a series of precious ornamental woody plants. However, their growth and development are inhibited in the subtropical regions due to the weak photosynthesis under high-temperature environment in the summer. Chlorophyll a fluorescence transient and 2-dimensional electrophoresis (2-DE) analyses were conducted to investigate the response characteristics of photosynthesis under ...
DOI:
10.3390/plants9081040

79. Comparative Proteomic Analysis of Leaves at Different Ages in Allotriploid Populus

Author:
Jiang Li; Yi Wang; Hairong Wei; Xiangyang Kang
Source:
Forests 2020 v.11 no.11 pp. -
ISSN:
1999-4907
Subject:
Calvin cycle; DNA; Populus; age; amino acid metabolism; apical meristems; biomass; carbon metabolism; cell walls; databases; forests; gluconeogenesis; glycolysis; glyoxylate cycle; leaves; light; lipid metabolism; pentose phosphate cycle; photorespiration; principal component analysis; protein-protein interactions; proteins; proteomics; starch; sucrose; synthesis; trees; triploidy
Abstract:
... Triploid poplar trees have been shown to have a number of growth advantages, especially much bigger leaves that contribute greatly to the increased biomass. In this study, we focused on the relationships between leaf age and leaf metabolism in triploids. We performed comparative proteomic analysis of the 5th (FDR5), 10th (FDR10), and 25th (FDR25) leaves from the apical meristems in allotriploids o ...
DOI:
10.3390/f11111154

80. Comparison of toxicological effects of oxybenzone, avobenzone, octocrylene, and octinoxate sunscreen ingredients on cucumber plants (Cucumis sativus L.)

Author:
Xin Zhong; Craig A. Downs; Yuting Li; Zishan Zhang; Yiman Li; Binbin Liu; Huiyuan Gao; Qingming Li
Source:
Science of the total environment 2020 v.714 pp. 136879
ISSN:
0048-9697
Subject:
Calvin cycle; Cucumis sativus; UV filters; anthropogenic activities; biosolids; cell respiration; crop yield; cucumbers; ecosystems; industry; ingredients; irrigation; lipid peroxidation; photosynthetic electron transport; phototoxicity; plant damage; plant growth; pollution; reactive oxygen species; sewage; sunscreens; toxicology; wastewater treatment
Abstract:
... Oxybenzone (OBZ), avobenzone (AVB), octocrylene (OCR) and octinoxate (OMC) are ultraviolet (UV) filters commonly added to chemical sunscreens. These UV filters are known to widely contaminate the environment through a variety of anthropogenic sources, including sewage discharge. However, systematic studies of the damage caused by these four UV filters and their toxicopathological differences in a ...
DOI:
10.1016/j.scitotenv.2020.136879

81. Distinctive mitochondrial and chloroplast components contributing to the maintenance of carbon balance during plant growth at elevated CO₂

Author:
Avesh Chadee; Greg C. Vanlerberghe
Source:
Plant signaling & behavior 2020 v.15 no.10 pp. 1795395
ISSN:
1559-2324
Subject:
Calvin cycle; Nicotiana tabacum; behavior; carbon; carbon dioxide; chloroplasts; electron transport chain; genes; glucose 6-phosphate; leaves; mitochondria; oxidoreductases; plant growth; starch
Abstract:
... Plant carbon balance depends upon the difference between photosynthetic carbon gain and respiratory carbon loss. In C₃ plants, growth at an elevated atmospheric concentration of CO₂ (ECO₂) stimulates photosynthesis and raises the leaf carbohydrate status, but how respiration responds is less understood. In this study, growth of Nicotiana tabacum at ECO₂ increased the protein amount of the non-ener ...
DOI:
10.1080/15592324.2020.1795395

82. Effects of cerium oxide nanoparticles and cadmium on corn (Zea mays L.) seedlings physiology and root anatomy

Author:
Fox John-Paul; Capen Jonathan D.; Zhang Weilan; Ma Xingmao; Rossi Lorenzo
Source:
NanoImpact pp. -
ISSN:
2452-0748
Subject:
C4 plants; Calvin cycle; Zea mays; biomass; chlorophyll; corn; experimental design; greenhouses; leaf dry mass; leaves; nanoceria; root anatomy; root tips; sand; stomatal conductance; sweetcorn
Abstract:
... Heavy metals and engineering nanoparticles (ENPs) are chemical compounds that, in the recent years, have attracted environmental concerns. Particularly, cadmium (Cd) and cerium oxide nanoparticles (CeO(2)NPs) have attracted researchers' interest because of their chemical and biophysical properties. Most of the previous studies were conducted on C3 plants, which produce three‑carbon compound via th ...
Handle:
10113/7544547
DOI:
10.1016/j.impact.2020.100264
CHORUS:
10.1016/j.impact.2020.100264

83. Effects of red and blue light on leaf anatomy, CO2 assimilation and the photosynthetic electron transport capacity of sweet pepper (Capsicum annuum L.) seedlings

Author:
Yan Li; Guofeng Xin; Chang Liu; Qinghua Shi; Fengjuan Yang; Min Wei
Source:
BMC plant biology 2020 v.20 no.1 pp. 318
ISSN:
1471-2229
Subject:
Calvin cycle; Capsicum annuum; biomass production; blue light; carbon dioxide; chlorophyll; leaf anatomy; photomorphogenesis; photons; photosynthetic electron transport; photosystem II; ribulose-bisphosphate carboxylase; sweet peppers
Abstract:
... BACKGROUND: The red (R) and blue (B) light wavelengths are known to influence many plant physiological processes during growth and development, particularly photosynthesis. To understand how R and B light influences plant photomorphogenesis and photosynthesis, we investigated changes in leaf anatomy, chlorophyll fluorescence and photosynthetic parameters, and ribulose-1, 5-bisphosphate carboxylase ...
DOI:
10.1186/s12870-020-02523-z

84. Extracellular secretion of superoxide is regulated by photosynthetic electron transport in the noxious red-tide-forming raphidophyte Chattonella antiqua

Author:
Koki Yuasa; Tomoyuki Shikata; Saho Kitatsuji; Yasuhiro Yamasaki; Yoshitaka Nishiyama
Source:
Journal of photochemistry and photobiology 2020 v.205 pp. 111839
ISSN:
1011-1344
Subject:
Calvin cycle; Chattonella marina; NADP (coenzyme); algae; aquatic environment; electrons; fish; fish culture; light intensity; mortality; photosynthetic electron transport; secretion; superoxide anion
Abstract:
... The raphidophyte Chattonella antiqua is a noxious red-tide-forming alga that harms fish culture and the aquatic environment. Chattonella antiqua produces and secretes superoxide anions (O₂⁻), and excessive secretion of O₂– into the water has been associated with fish mortality. It is known that strong light stimulates the production of O₂– in Chattonella spp. but the mechanism of the light-induced ...
DOI:
10.1016/j.jphotobiol.2020.111839

85. Features of metabolic regulation revealed by transcriptomic adaptions driven by long‐term elevated pCO2 in Chaetoceros muelleri

Author:
Chengwei Liang; Yufei Zhang; Lu Wang; Lei Shi; Dong Xu; Xiaowen Zhang; Naihao Ye
Source:
Phycological research 2020 v.68 no.3 pp. 236-248
ISSN:
1322-0829
Subject:
Bacillariophyceae; Calvin cycle; Chaetoceros muelleri; acidification; carbon dioxide; carbon dioxide enrichment; carbon dioxide fixation; emissions; fatty acids; food webs; gene expression regulation; genes; glycolysis; lipid content; nitrogen; nitrogen metabolism; ocean acidification; partial pressure; phytoplankton; transcriptome; transcriptomics
Abstract:
... Ocean acidification caused by the rise of anthropogenic emissions of carbon dioxide (CO₂) is expected to influence many marine species, especially phytoplankton. Diatoms, a key group of phytoplankton, play vital roles in global carbon fixation and natural food webs. Currently, little is known about their adaptive responses to long‐term acidification. In this study, physiological and transcriptomic ...
DOI:
10.1111/pre.12423

86. Genomic and Metabolic Insights into Two Novel Thiothrix Species from Enhanced Biological Phosphorus Removal Systems

Author:
Andrey V. Mardanov; Eugeny V. Gruzdev; Dmitry D. Smolyakov; Tatyana S. Rudenko; Alexey V. Beletsky; Maria V. Gureeva; Nikita D. Markov; Yulia Yu. Berestovskaya; Nikolai V. Pimenov; Nikolai V. Ravin; Margarita Yu. Grabovich
Source:
Microorganisms 2020 v.8 no.12 pp. -
ISSN:
2076-2607
Subject:
Calvin cycle; Thiothrix; alcohol oxidoreductases; bioreactors; electron transport chain; exopolyphosphatase; genome; metabolomics; metagenomics; new species; nitrate reductase; nitric oxide reductase (cytochrome c); nitrite reductase; nucleotide sequences; oxidation; phosphorus; polyphosphate kinase; polyphosphates; sequence analysis; sulfate-reducing bacteria; sulfides; sulfites; sulfur; thiosulfates; tricarboxylic acid cycle
Abstract:
... Two metagenome-assembled genomes (MAGs), obtained from laboratory-scale enhanced biological phosphorus removal bioreactors, were analyzed. The values of 16S rRNA gene sequence identity, average nucleotide identity, and average amino acid identity indicated that these genomes, designated as RT and SSD2, represented two novel species within the genus Thiothrix, ‘Candidatus Thiothrix moscowensis’ and ...
DOI:
10.3390/microorganisms8122030

87. How do vascular plants perform photosynthesis in extreme environments? An integrative ecophysiological and biochemical story

Author:
Beatriz Fernández‐Marín; Javier Gulías; Carlos M. Figueroa; Concepción Iñiguez; María J. Clemente‐Moreno; Adriano Nunes‐Nesi; Alisdair R. Fernie; Lohengrin A. Cavieres; León A. Bravo; José I. García‐Plazaola; Jorge Gago
Source:
plant journal 2020 v.101 no.4 pp. 979-1000
ISSN:
0960-7412
Subject:
C3 plants; Calvin cycle; carbon; carbon dioxide fixation; carboxylation; cell walls; cold; cold zones; deserts; ecophysiology; ecosystems; evolution; mesophyll; mountains; photochemistry; radiation resistance; reactive oxygen species; ribulose-bisphosphate carboxylase; stomatal conductance; temperature; vascular plants
Abstract:
... In this work, we review the physiological and molecular mechanisms that allow vascular plants to perform photosynthesis in extreme environments, such as deserts, polar and alpine ecosystems. Specifically, we discuss the morpho/anatomical, photochemical and metabolic adaptive processes that enable a positive carbon balance in photosynthetic tissues under extreme temperatures and/or severe water‐lim ...
DOI:
10.1111/tpj.14694

88. Identification of the electron donor to flavodiiron proteins in Synechocystis sp. PCC 6803 by in vivo spectroscopy

Author:
Pierre Sétif; Ginga Shimakawa; Anja Krieger-Liszkay; Chikahiro Miyake
Source:
Biochimica et biophysica acta 2020 v.1861 no.10 pp. 148256
ISSN:
0005-2728
Subject:
Calvin cycle; NADP (coenzyme); Synechocystis sp. PCC 6803; autotrophs; carbon dioxide; electrons; fluorescence; lighting; mutants; oxidation; oxygen; photosystem I; proteins; radiation resistance; spectroscopy
Abstract:
... Flavodiiron proteins (FDPs) of photosynthetic organisms play a photoprotective role by reducing oxygen to water and thus avoiding the accumulation of excess electrons on the photosystem I (PSI) acceptor side under stress conditions. In Synechocystis sp. PCC 6803 grown under high CO₂, both FDPs Flv1 and Flv3 are indispensable for oxygen reduction. We performed a detailed in vivo kinetic study of wi ...
DOI:
10.1016/j.bbabio.2020.148256

89. Improved photosynthetic characteristics of Chlorella mutant MS700 induced by nuclear radiation

Author:
Hongxiang Lu; Jun Cheng; Zhenyi Wang; Yanxia Zhu; Xiangdong Zhang; Jianzhong Liu
Source:
Process biochemistry 2020 v.99 pp. 154-159
ISSN:
1359-5113
Subject:
Calvin cycle; Chlorella; biomass production; carbon dioxide; carbon dioxide fixation; chlorophyll; dissolved inorganic carbon; energy conversion; fluorescence; microalgae; mutants; oxygen; oxygen production; photosystem II; plastoquinones
Abstract:
... Chlorophyll a variable fluorescence and oxygen evolution were measured in microalgae Chlorella and its mutant MS700, which was mutated by nuclear radiation with an increased biomass yield. The mutant MS700 showed an improvement in photosynthetic characteristics under various CO₂ concentrations. Results showed that chlorophyll-based flash oxygen yield was 104% higher in MS700 than in the wild type, ...
DOI:
10.1016/j.procbio.2020.08.022

90. Increased CO2 and light intensity regulate growth and leaf gas exchange in tomato

Author:
Tonghua Pan; Yunlong Wang; Linghui Wang; Juanjuan Ding; Yanfei Cao; Gege Qin; Lulu Yan; Linjie Xi; Jing Zhang; Zhirong Zou
Source:
Physiologia plantarum 2020 v.168 no.3 pp. 694-708
ISSN:
0031-9317
Subject:
Calvin cycle; Solanum lycopersicum; carbon dioxide; carbon dioxide enrichment; carbon dioxide fixation; carboxylation; chlorophyll; dry matter accumulation; energy; enzyme activity; gas exchange; leaf area; leaf nitrogen content; leaves; light intensity; plant growth; seedlings; tomatoes; transpiration; water use efficiency; water utilization
Abstract:
... Carbon dioxide concentration (CO₂) and light intensity are known to play important roles in plant growth and carbon assimilation. Nevertheless, the underlying physiological mechanisms have not yet been fully explored. Tomato seedlings (Solanum lycopersicum Mill. cv. Jingpeng No. 1) were exposed to two levels of CO₂ and three levels of light intensity and the effects on growth, leaf gas exchange an ...
DOI:
10.1111/ppl.13015

91. Inhibition of glucose assimilation in Auxenochlorella protothecoides by light

Author:
Yibo Xiao; Jianying Guo; Huachang Zhu; Anwar Muhammad; Haiteng Deng; Zhangli Hu; Qingyu Wu
Source:
Biotechnology for biofuels 2020 v.13 no.1 pp. 146
ISSN:
1754-6834
Subject:
Auxenochlorella protothecoides; Calvin cycle; autotrophs; biofuels; biomass production; biotechnology; energy; fatty acids; genes; glucose; glyceraldehyde 3-phosphate; light; lighting; microalgae; organic carbon; proteins; proteomics; redox potential; theoretical models; thioredoxins
Abstract:
... BACKGROUND: The yield of microalgae biomass is the key to affect the accumulation of fatty acids. A few microalgae can assimilate organic carbon to improve biomass yield. In mixotrophic cultivation, microalgae can use organic carbon source and light energy simultaneously. The preference of the main energy source by microalgae determines the biomass yield. Auxenochlorella protothecoides is an oleag ...
DOI:
10.1186/s13068-020-01787-9

92. Melatonin Mitigates Chilling-Induced Oxidative Stress and Photosynthesis Inhibition in Tomato Plants

Author:
Meiling Wang; Shuoxin Zhang; Fei Ding
Source:
Antioxidants 2020 v.9 no.3 pp. -
ISSN:
2076-3921
Subject:
Calvin cycle; Solanum lycopersicum; antioxidant activity; biosynthesis; cold stress; cold treatment; enzyme activity; enzymes; foliar application; gene silencing; glutathione; leaves; lipid peroxidation; melatonin; oxidation; oxidative stress; reactive oxygen species; tomatoes
Abstract:
... Melatonin has been demonstrated to play a variety of roles in plants. Of particular importance is its role as a potent antioxidative agent. In the present study, we generated melatonin-deficient tomato plants using virus-induced gene silencing (VIGS) approach and melatonin-rich tomato plants by foliar application of melatonin. These tomato plants were used to assess the effect of melatonin on chil ...
DOI:
10.3390/antiox9030218

93. Metabolic profiles of six African cultivars of cassava (Manihot esculenta Crantz) highlight bottlenecks of root yield

Author:
Toshihiro Obata; Patrick A.W. Klemens; Laise Rosado‐Souza; Armin Schlereth; Andreas Gisel; Livia Stavolone; Wolfgang Zierer; Nicolas Morales; Lukas A. Mueller; Samuel C. Zeeman; Frank Ludewig; Mark Stitt; Uwe Sonnewald; H. Ekkehard Neuhaus; Alisdair R. Fernie
Source:
plant journal 2020 v.102 no.6 pp. 1202-1219
ISSN:
0960-7412
Subject:
Calvin cycle; Manihot esculenta; batteries; carbon dioxide fixation; cassava; chlorogenic acid; cultivars; genetic improvement; greenhouses; light intensity; nitrogen; staple crops; starch; sucrose; trehalose; Nigeria
Abstract:
... Cassava is an important staple crop in sub‐Saharan Africa, due to its high productivity even on nutrient poor soils. The metabolic characteristics underlying this high productivity are poorly understood including the mode of photosynthesis, reasons for the high rate of photosynthesis, the extent of source/sink limitation, the impact of environment, and the extent of variation between cultivars. Si ...
DOI:
10.1111/tpj.14693

94. Novel Insights into Phosphorus Deprivation Boosted Lipid Synthesis in the Marine Alga Nannochloropsis oceanica without Compromising Biomass Production

Author:
Ying Shi; Meijing Liu; Wei Ding; Jin Liu
Source:
Journal of agricultural and food chemistry 2020 v.68 no.41 pp. 11488-11502
ISSN:
1520-5118
Subject:
Calvin cycle; Nannochloropsis; algae; biomass production; carbohydrates; carbon; carbon dioxide; carboxylic ester hydrolases; catabolism; food chemistry; lipogenesis; nitrogen; phosphorus; protein metabolism; transcriptomics; triacylglycerols; tricarboxylic acid cycle
Abstract:
... Nannochloropsis oceanica represents a preferred oleaginous alga for producing lipids. Here we found that phosphorus deprivation (PD) caused a severe decrease in protein and a considerable increase in lipids including triacylglycerol (TAG), yet it had little effect on the carbohydrate level and biomass production of N. oceanica. The combinatorial analysis by integrating physiological, biochemical, ...
DOI:
10.1021/acs.jafc.0c04899

95. Overexpression of fructose-1,6-bisphosphate aldolase 1 enhances accumulation of fatty acids in Chlamydomonas reinhardtii

Author:
Beom-Seok Lee; Kwang Min Koo; Jaihyunk Ryu; Min Jeong Hong; Sang Hoon Kim; Soon-Jae Kwon; Jin-Baek Kim; Jong-il Choi; Joon-Woo Ahn
Source:
Algal research 2020 v.47 pp. 101825
ISSN:
2211-9264
Subject:
Calvin cycle; Chlamydomonas reinhardtii; NDP-glucose-starch glucosyltransferase; acetates; acetyl coenzyme A; algae; bioenergy; carbon; carbon dioxide fixation; carbon metabolism; energy; fatty acid composition; fatty acids; fructose-bisphosphate aldolase; gene expression regulation; genetically modified organisms; glyceraldehyde 3-phosphate; glycolysis; heterotrophs; ligases; nitrogen; phosphates; phosphoglucomutase; reverse transcriptase polymerase chain reaction; starch
Abstract:
... The unicellular green alga Chlamydomonas reinhardtti is a promising source of bioenergy and understanding its carbon metabolism is important. In this organism, carbon accumulation can be manipulated with nitrogen supply. Chlamydomonas reinhardtii is a mixotroph that can act as an autotroph or heterotroph, depending on conditions. Fructose-1,6-bisphosphate aldolases (FBAs) are important enzymes in ...
DOI:
10.1016/j.algal.2020.101825

96. Permafrost Hydrology Drives the Assimilation of Old Carbon by Stream Food Webs in the Arctic

Author:
Jonathan A. O’Donnell; Michael P. Carey; Joshua C. Koch; Xiaomei Xu; Brett A. Poulin; Jennifer Walker; Christian E. Zimmerman
Source:
Ecosystems 2020 v.23 no.2 pp. 435-453
ISSN:
1432-9840
Subject:
Calvin cycle; Salvelinus malma; Thymallus arcticus; animal growth; aquatic ecosystems; aquatic food webs; bedrock; benthic organisms; biofilm; dissolved inorganic carbon; dissolved organic carbon; fish; hydrology; landscapes; loess; macroinvertebrates; nutritional status; peat; permafrost; soil carbon; statistical models; streams; trophic levels; watersheds; Alaska; Arctic region
Abstract:
... Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (δ¹³C, Δ¹⁴C) to quantify C assimilation by biota across 12 streams in arctic Alaska. Streams spanned watersheds with varying permafrost hydrology, from ice-poor b ...
DOI:
10.1007/s10021-019-00413-6

97. Photoprotection mechanisms of Nannochloropsis oceanica in response to light stress

Author:
Baobei Wang; Jing Jia
Source:
Algal research 2020 v.46 pp. 101784
ISSN:
2211-9264
Subject:
Calvin cycle; Nannochloropsis; acetyl coenzyme A; astaxanthin; autotrophs; beta-carotene; biosynthesis; canthaxanthin; carbon; carbon metabolism; cell growth; chlorophyll; citric acid; eicosapentaenoic acid; environmental factors; fuel production; glycolysis; light harvesting complex; light intensity; lipid content; lutein; microalgae; models; photochemistry; protein content; proteomics; pyruvic acid; radiation resistance; reactive oxygen species; sugar content; tandem mass spectrometry; triacylglycerols; violaxanthin; zeaxanthin
Abstract:
... Light is a pivotal environmental factor that affects the growth and productivity of photosynthetic organisms. Microalgae have evolved complex photoprotective mechanisms to circumvent damage from high light. Nannochloropsis produce approximately 4–5% eicosapentaenoic acid (EPA) of dry cell weight (dwt) under favorable growth conditions, and accumulate triacylglycerol (TAG) at up to 60% of dwt under ...
DOI:
10.1016/j.algal.2019.101784

98. Photoprotection mechanisms under different CO2 regimes during photosynthesis in a green alga Chlorella variabilis

Author:
Yoshifumi Ueno; Ginga Shimakawa; Shimpei Aikawa; Chikahiro Miyake; Seiji Akimoto
Source:
Photosynthesis research 2020 v.144 no.3 pp. 397-407
ISSN:
0166-8595
Subject:
Calvin cycle; Chlamydomonas reinhardtii; Chlorella variabilis; algae; autotrophs; carbon; carbon dioxide; chlorophyll binding proteins; electrons; energy; fluorescence; fluorescence emission spectroscopy; models; oxygen production; photosynthetic electron transport; radiation resistance; reactive oxygen species
Abstract:
... Oxygenic photosynthesis converts light energy into chemical energy via electron transport and assimilates CO₂ in the Calvin–Benson cycle with the chemical energy. Thus, high light and low CO₂ conditions induce the accumulation of electrons in the photosynthetic electron transport system, resulting in the formation of reactive oxygen species. To prevent the accumulation of electrons, oxygenic photo ...
DOI:
10.1007/s11120-020-00757-4

99. Photosynthetic activity and RAPD profile of polyethylene glycol treated B. juncea L. under nitric oxide and abscisic acid application

Author:
Seema Sahay; Eulogio De La Cruz Torres; Luis Robledo-Arratia; Meetu Gupta
Source:
Journal of biotechnology 2020 v.313 pp. 29-38
ISSN:
0168-1656
Subject:
Brassica juncea; Calvin cycle; DNA; abscisic acid; carbon dioxide; chlorophyll; electron transport chain; genomics; genotoxicity; glyceraldehyde-3-phosphate dehydrogenase; nitric oxide; nitroprusside; oxidative stress; photochemistry; photosystem II; polyethylene glycol; random amplified polymorphic DNA technique; ribulose-bisphosphate carboxylase; serine O-acetyltransferase; stomatal conductance; sulfate adenylyltransferase; water stress
Abstract:
... The involvement of two extremely important signalling molecules, nitric oxide (NO) and abscisic acid (ABA) has been employed by plants to facilitate the adaptive/tolerate response during stressful conditions. However, the interactive role of exogenously applied NO and ABA is very less studied at physiological, biochemical and molecular levels. The present study therefore, evaluated the effects of ...
DOI:
10.1016/j.jbiotec.2020.03.004

100. Photosynthetic characteristics of aerial microalga Trentepohlia jolithus during drying and rewetting cycles

Author:
Litao Zhang; Yongfu Li; Jianguo Liu
Source:
Algal research 2020 v.50 pp. 101992
ISSN:
2211-9264
Subject:
Calvin cycle; Trentepohlia; cells; drying; energy; environment; enzymes; flow; heat; light; microalgae; photochemistry; photoinhibition; photosystem II; radiation resistance; rehydration; relative humidity; research; water
Abstract:
... Aerial microalga Trentepohlia jolithus is frequently exposed to drying and rewetting cycles. To characterize the adaptive mechanisms allowing survivability of this aerial microalga, the responses of photosynthetic characteristics and photoprotective mechanisms to moderate desiccation (80% and 60% relative air humidity) and severe desiccation (40% relative air humidity) were investigated in T. joli ...
DOI:
10.1016/j.algal.2020.101992