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You searched for: Subject alcohols Remove constraint Subject: alcohols Subject chlorophyll Remove constraint Subject: chlorophyll
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1. 2‐Hydroxy‐phytanoyl‐CoA lyase (AtHPCL) is involved in phytol metabolism in Arabidopsis

Author:
Wentao Yang; Philipp Gutbrod; Katharina Gutbrod; Helga Peisker; Xiaoning Song; Anna‐Lena Falz; Andreas J. Meyer; Peter Dörmann
Source:
plant journal 2022 v.109 no.5 pp. 1290-1304
ISSN:
0960-7412
Subject:
Arabidopsis; alcohols; catabolism; chlorophyll; enzymes; fatty acids; human nutrition; humans; isoprenoids; metabolites; peroxisomes; yeasts
Abstract:
... During chlorophyll degradation, large amounts of the isoprenoid alcohol phytol are released. The pathway of phytol catabolism has been studied in humans, because chlorophyll is part of the human diet, but little is known for plants. In humans, phytanoyl‐CoA derived from phytol is degraded via α‐oxidation by phytanoyl‐CoA hydroxylase (PAHX) and 2‐hydroxy‐phytanoyl‐CoA lyase (HPCL). Arabidopsis cont ...
DOI:
10.1111/tpj.15632

2. Identification of potential accessions of Bacopa monnieri L. for herbage yield and bacosides A content

Author:
Parmeshwar Lal Saran; Hiteksha I. Damor; Darshan H. Lodaya; Manish Kumar Suthar; Kuldeepsingh A. Kalariya; Satyajit Roy
Source:
Industrial crops and products 2022 v.176 pp. 114348
ISSN:
0926-6690
Subject:
Bacopa monnieri; alcohols; carotenoids; chlorophyll; energy; forage yield; governance; longevity; medicinal plants; product development; sleep
Abstract:
... Bacopa monnieri is well recognized medicinal herb for promoting mental strength, longevity, life energy, and sleep. Conservation and cultivation of overexploited species like Brahmi are the key factors for the restoration of diversity. The diversity in species can be implied to screen the elite accessions. Morphological, chemical, and genetic parameters of five elite accessions were studied and ev ...
DOI:
10.1016/j.indcrop.2021.114348

3. Brevundimonas diminuta MYS6 associated Helianthus annuus L. for enhanced copper phytoremediation

Author:
Manohari Rathi; Yogalakshmi K N
Source:
Chemosphere 2021 v.263 pp. 128195
ISSN:
0045-6535
Subject:
Brevundimonas diminuta; Helianthus annuus; alcohols; carboxylic acids; chlorophyll; copper; design; experimental design; growth curves; growth promotion; leaves; length; metal tolerance; pH; phytomass; phytoremediation; plant growth; population; response surface methodology; rhizosphere bacteria; roots; shoots; temperature
Abstract:
... Natural occurring metal-tolerant microbial population have replaced conventional expensive metal remediation approach since the last few years. The present study focuses on investigating the potential of a copper-tolerant plant growth promoting rhizobacterial strain Brevundimonas diminuta MYS6 for Cu bioremediation, plant growth promotion and Cu uptake in Helianthus annuus L. Box-Behnken Design of ...
DOI:
10.1016/j.chemosphere.2020.128195

4. Chlorophyll dephytylase 1 and chlorophyll synthase: a chlorophyll salvage pathway for the turnover of photosystems I and II

Author:
Yao‐Pin Lin; Yu‐Yen Shen; Yen‐Bin Shiu; Yee‐yung Charng; Bernhard Grimm
Source:
plant journal 2022 v.111 no.4 pp. 979-994
ISSN:
0960-7412
Subject:
Arabidopsis; alcohols; chlorophyll; diterpenoids; energy; heat stress; knockout mutants; necrosis; photosystem II; plant development; reactive oxygen species
Abstract:
... Chlorophyll (Chl) is made up of the tetrapyrrole chlorophyllide and phytol, a diterpenoid alcohol. The photosynthetic protein complexes utilize Chl for light harvesting to produce biochemical energy for plant development. However, excess light and adverse environmental conditions facilitate generation of reactive oxygen species, which damage photosystems I and II (PSI and PSII) and induce their tu ...
DOI:
10.1111/tpj.15865

5. Acclimation of photosynthetic processes and metabolic responses to elevated temperatures in cereals

Author:
Tibor Janda; Judit Tajti; Kamirán Á. Hamow; Tihana Marček; Beti Ivanovska; Gabriella Szalai; Magda Pál; Ewa D. Zalewska; Éva Darkó
Source:
Physiologia plantarum 2021 v.171 no.2 pp. 217-231
ISSN:
0031-9317
Subject:
acclimation; alcohols; amino acids; barley; biochemical pathways; chlorophyll; fluorescence; gas exchange; genes; genotype; heat; heat stress; heat tolerance; inositol 3-alpha-galactosyltransferase; metabolites; metabolomics; oats; organic acids and salts; photosynthesis; raffinose; spring; spring wheat; synthesis; temperature; transpiration; varieties; water use efficiency; winter
Abstract:
... The aim of the present work was to better understand the molecular mechanisms of heat acclimation processes in cereals. A large number of winter and spring wheat, barley and oat varieties were grown under either control conditions (22/20°C) or under a mild heat stress (30°C) that induce the acclimation processes. The temperature dependence of chlorophyll a fluorescence induction and gas exchange p ...
DOI:
10.1111/ppl.13207

6. Effects of irrigation on ecophysiology, sugar content andthiol precursors (3-S-cysteinylhexan-1-ol and 3-S-glutathionylhexan-1-ol) on Vitis vinifera cv. Sauvignon Blanc

Author:
Eleonora Cataldo; Linda Salvi; Giovan Battista Mattii
Source:
Plant physiology and biochemistry 2021 v.164 pp. 247-259
ISSN:
0981-9428
Subject:
Vitis vinifera; acidity; alcohols; brix; chlorophyll; climate change; ecophysiology; gas exchange; irrigation; leaves; odors; pH; phenology; photosynthesis; stomatal conductance; temperature; thiols; water potential; water stress; Italy
Abstract:
... Climate change has an important impact on the phenological phases of the grapevine. The consequences are directly reflected in quantitative and qualitative characteristics of the grapes. In fact, there is a decrease in the skin-to-pulp ratio (therefore a decrease in production with an excess of alcohol) and a consequent reduction in the aromatic potential of white grapes (lowering of the quality o ...
DOI:
10.1016/j.plaphy.2021.04.029

7. The potential of Cosmos sulphureus flower extract as a bioherbicide for Cyperus rotundus

Author:
Dyah Respatie; Yudono Prapto; Aziz Purwantoro; Y. Andi Trisyono
Source:
Biodiversitas 2019 v.20 no.12 pp. -
ISSN:
2085-4722
Subject:
Cosmos sulphureus; Cyperus rotundus; alcohols; analysis of variance; biopesticides; chlorophyll; flower extracts; flowers; gallic acid; greenhouses; leaf area; leaf dry mass; maceration; photosynthesis; weeds
Abstract:
... Respatie. D. W, Yudono P, Purwantoro A, Trisyono Y.A. 2019. The potential of Cosmos sulphureus flower extract as a bioherbicide for Cyperus rotundus. Biodiversitas 20: 3568-3574. Cosmos (Cosmos sulphureus Cav.) flower is recognized as natural source of bioherbicide compounds for several weeds. The purple nutsedge (Cyperus rotundus L.) is an important weed, and this research was aimed to determine ...
DOI:
10.13057/biodiv/d201215

8. Antioxidative response in leaves and allelochemical changes in root exudates of Ricinus communis under Cu, Zn, and Cd stress

Author:
Shuifeng Wang; Ye Zhao; Jinghua Guo; Yuan Liu
Source:
Environmental science and pollution research international 2018 v.25 no.32 pp. 32747-32755
ISSN:
0944-1344
Subject:
Ricinus communis; alcohols; alkanes; amides; cadmium; catalase; chlorophyll; copper; enzyme activity; esters; ethers; fuel production; gas chromatography-mass spectrometry; leaves; malondialdehyde; peroxidase; phytoremediation; polluted soils; root exudates; roots; superoxide dismutase; zinc
Abstract:
... We have previously reported that Ricinus communis is a good candidate for the phytoremediation of Cd- and Zn-contaminated soil and for fuel production. In this study, changes in the activity of antioxidant enzymes (superoxide dismutase, SOD; catalase, CAT; and guaiacol peroxidase, POD) and the contents of chlorophyll and malondialdehyde (MDA) in R. communis leaves under Cu, Zn, and Cd stress were ...
DOI:
10.1007/s11356-018-3283-5

9. Metabolic fingerprinting of water‐stressed soybean cultivars by gas chromatography, near‐infrared and UV‐visible spectroscopy combined with chemometrics

Author:
Virgílio G. Uarrota; Cristiane Segatto; Ana Paula L. Voytena; Marcelo Maraschin; Linda Vásquez Avila; Daniele C. S. Kazama; Cileide M. M. Coelho; Clovis Arruda Souza
Source:
Journal of agronomy and crop science 2019 v.205 no.2 pp. 141-156
ISSN:
0931-2250
Subject:
alcohols; antioxidant activity; aromatic hydrocarbons; biomarkers; carotenoids; chemometrics; chlorophyll; cultivars; dodecanoic acid; dry matter content; esters; ethers; gas chromatography; humidity; leaves; linoleic acid; linolenic acid; lipid peroxidation; moieties; myristic acid; oleic acid; palmitic acid; palmitoleic acid; peroxidase; phenolic compounds; photosynthesis; polyamides; polysaccharides; principal component analysis; proline; proteins; reactive oxygen species; signal transduction; soybeans; stearic acid; ultraviolet-visible spectroscopy; water content; water stress
Abstract:
... Aiming to assess the impact of water deficit on agronomic, photosynthetic and biochemical parameters of two soybean cultivars during reproductive stage, soybean plants were subjected to three gravimetric humidity levels. Water deficit decreased the leaf relative water content, leaf dry matter content, dried pod weight, grain weight, chlorophyll activity, linolenic acid, pentadecanoid and palmitole ...
DOI:
10.1111/jac.12311

10. Overexpression of the Arabidopsis glutathione peroxidase-like 5 gene (AtGPXL5) resulted in altered plant development and redox status

Author:
Riyazuddin Riyazuddin; Krisztina Bela; Edit Horváth; Gábor Rigó; Ágnes Gallé; László Szabados; Attila Fehér; Jolán Csiszár
Source:
Environmental and experimental botany 2019 pp. -
ISSN:
0098-8472
Subject:
Arabidopsis thaliana; alcohols; antioxidant enzymes; chlorophyll; gene overexpression; genes; germination; glutathione; glutathione peroxidase; hydrogen peroxide; hydroperoxides; isozymes; mutants; peroxiredoxin; plant development; plasma membrane; redox potential; salt stress; salt tolerance; seedling growth; seedlings; sodium chloride; thioredoxins; transcription (genetics)
Abstract:
... Plant’s glutathione peroxidase-like (GPXL) enzymes are thiol-based peroxidases catalysing the reduction of H2O2 or hydroperoxides to water or alcohols using reduced glutathione (GSH) or thioredoxin as an electron donor. Arabidopsis thaliana possess eight isoenzymes having different roles in redox-dependent processes. AtGPXL5 is a poorly known plasma membrane associated enzyme. We have investigated ...
DOI:
10.1016/j.envexpbot.2019.103849

11. Physiological, micro-morphological and metabolomic analysis of grapevine (Vitis vinifera L.) leaf of plants under water stress

Author:
Yan-lun Ju; Xiao-feng Yue; Xian-fang Zhao; Hui Zhao; Yu-lin Fang
Source:
Plant physiology and biochemistry 2018 v.130 pp. 501-510
ISSN:
0981-9428
Subject:
Vitis vinifera; alcohols; antioxidant activity; catalase; chlorophyll; evapotranspiration; fruits; grapes; hydrogen peroxide; irrigation; ketones; leaves; lipid peroxidation; malondialdehyde; metabolomics; multivariate analysis; nutritive value; photosynthesis; proline; scanning electron microscopes; semiarid zones; stomatal movement; superoxide dismutase; volatile compounds; water content; water stress
Abstract:
... Grapes are one of the most important fruits because of their economic and nutritional benefits, and grapevines are widely cultivated in arid and semi-arid areas. Therefore, it is critical to study the mechanism by which grapevines respond to water stress. In this research, micro-morphological and metabolomic analyses were conducted to evaluate the effects of water stress on stomatal morphology and ...
DOI:
10.1016/j.plaphy.2018.07.036

12. Catalytic and structural properties of pheophytinase, the phytol esterase involved in chlorophyll breakdown

Author:
Luzia Guyer; Kathrin Salinger; Undine Krügel; Stefan Hörtensteiner
Source:
Journal of experimental botany 2018 v.69 no.4 pp. 879-889
ISSN:
1460-2431
Subject:
Arabidopsis thaliana; alcohols; aspartic acid; catalytic activity; chlorophyll; chlorophyllase; computer simulation; histidine; hydrophobicity; leaves; models; moieties; mutants; ripening; serine; vacuoles; water solubility
Abstract:
... During leaf senescence and fruit ripening, chlorophyll is degraded in a multistep pathway into linear tetrapyrroles called phyllobilins. A key feature of chlorophyll breakdown is the removal of the hydrophobic phytol chain that renders phyllobilins water soluble, an important prerequisite for their ultimate storage in the vacuole of senescent cells. Chlorophyllases had been considered for more tha ...
DOI:
10.1093/jxb/erx326
PubMed:
29036670
PubMed Central:
PMC5853334

13. Facile iodination of the vinyl groups in protoporphyrin IX dimethyl ester and subsequent transformation of the iodinated moieties

Author:
Kota Miyata; Satoru Yasuda; Takuto Masuya; Satoshi Ito; Yusuke Kinoshita; Hitoshi Tamiaki; Toru Oba
Source:
Tetrahedron 2018 v.74 no.27 pp. 3707-3711
ISSN:
0040-4020
Subject:
alcohols; alkenes; chlorins; chlorophyll; iodination; iodine; moieties; protoporphyrin; styrene
Abstract:
... Iodination of protoporphyrin IX dimethyl ester using phenyliodine bis(trifluoroacetate) (PIFA) and I₂ was studied. Iodine added to both the C3- and C8-vinyl groups equally to afford the iodohydrin or iodoether in the presence of water or alcohol, respectively. Any meso-hydrogen atom was not substituted by an iodine atom under these conditions, although both the vinyl group and one of the meso posi ...
DOI:
10.1016/j.tet.2018.05.040

14. Application of shade treatments during Shiraz berry ripening to reduce the impact of high temperature

Author:
L. Caravia; C. Collins; P.R. Petrie; S.D. Tyerman
Source:
Australian journal of grape and wine research 2016 v.22 no.3 pp. 422-437
ISSN:
1322-7130
Subject:
Vitis; absorption; alcohols; anthocyanins; carbon dioxide; cell death; chlorophyll; color; harvesting; heat stress; leaves; phenolic compounds; ripening; sap flow; shade; small fruits; soil; sugars; temperature; transpiration; vines; water content; water potential; wines
Abstract:
... BACKGROUND AND AIMS: The impact of high temperature on grapevine function is predicted to be a serious problem in our warming climate. We studied the impact of shading on some aspects of vine physiology, berry cell death and other components of berry development and on the resultant wines in order to understand grapevine physiology and the ripening process in shaded conditions and to assess shadin ...
DOI:
10.1111/ajgw.12248

15. Autoxidation of chlorophyll phytyl side chain in senescent phototrophic organisms: A potential source of isophytol in the environment

Author:
Jean-François Rontani; Marie-Aimée Galeron
Source:
Organic geochemistry 2016 v.97 pp. 35-40
ISSN:
0146-6380
Subject:
alcohols; autotrophs; autoxidation; chlorophyll; isoprenoids
Abstract:
... In this short paper, it is demonstrated that autoxidation (free radical induced oxidation) of the chlorophyll phytyl side chain in senescent phytoplanktonic cells and higher plants constitutes a potential source of isophytol (3,7,11,15-tetramethylhexadec-1-en-3-ol) in the environment. To explain the formation of this isoprenoid alcohol, mechanisms involving the formation of the precursor 3-peroxy- ...
DOI:
10.1016/j.orggeochem.2016.03.008

16. Synthesis of methyl pyropheophorbide-d derivatives possessing the 3-acyl groups and their electronic absorption spectra

Author:
Hitoshi Tamiaki; Yuki Kimura; Hiroaki Watanabe; Tomohiro Miyatake
Source:
Tetrahedron 2016 v.72 pp. 3477-3489
ISSN:
0040-4020
Subject:
absorption; alcohols; chemical reactions; chemical structure; chlorins; chlorophyll; methylene chloride; wavelengths
Abstract:
... Methyl 3-acyl-pyropheophorbides-a were prepared by modification of naturally occurring chlorophyll-a through Grignard or Barbier reactions of the 3-formyl group and successive Ley–Griffith or Dess–Martin oxidations of the resulting secondary alcohols. The semi-synthetic 3-acyl-chlorins gave intense visible bands in dichloromethane and the absorption spectra were dependent on the 31-substituents. T ...
DOI:
10.1016/j.tet.2016.04.074

17. Metabolomic profiling of the astaxanthin accumulation process induced by high light in Haematococcus pluvialis

Author:
Hexin Lv; Feng Xia; Miao Liu; Xianggan Cui; Fazli Wahid; Shiru Jia
Source:
Algal research 2016 v.20 pp. 35-43
ISSN:
2211-9264
Subject:
Calvin cycle; Haematococcus pluvialis; Pluvialis; alcohols; amines; astaxanthin; biomarkers; cell biology; chlorophyll; cluster analysis; gas chromatography-mass spectrometry; glutamic acid; least squares; metabolites; metabolomics; models; nucleic acids; organic acids and salts; pigmentation; principal component analysis; proline; sucrose; tricarboxylic acid cycle
Abstract:
... The growth of Haematococcus pluvialis exposed to high light was divided into three pigmentation phases: a green phase, a yellow phase and a red phase. Classification was based on astaxanthin and chlorophyll content and cell morphology. Metabolic profiling of the three pigmentation phases was performed. A total of 81 metabolites were identified and quantified by gas chromatography–mass spectrometry ...
DOI:
10.1016/j.algal.2016.09.019

18. Preliminary Study of the Characteristics of Several Glossy Cabbage (Brassica oleracea var. capitata L.) Mutants

Author:
Tang Jun; Liu Dongming; Liu Zezhou; Yang Limei; Fang Zhiyuan; Liu Yumei; Zhuang Mu; Zhang Yangyong; Lü Honghao; Yi Dengxia; Sun Peitian
Source:
Horticultural plant journal 2015 v.1 no.2 pp. 93-100
ISSN:
2468-0141
Subject:
Brassica oleracea var. capitata; agronomic traits; alcohols; aldehydes; alkanes; cabbage; chlorophyll; crossing; crystals; dominant genes; epicuticular wax; fatty acids; growth curves; heterosis; horticultural crops; ketones; leaching; leaves; mutants; water stress
Abstract:
... To determine the characteristics and potential practical applications of glossy cabbage (Brassica oleracea var. capitata L.) mutants, five different glossy mutants were studied. The amount of epicuticular wax covering the mutant leaves was only approximately 30% that of the wild-type (WT) leaves. The wax crystals of WT plants were columnar and linear, while they were granular and rod-shaped in the ...
DOI:
10.16420/j.issn.2095-9885.2015-0009

19. The Esterification of Chlorophyllide a in Greening Bean Leaves

Author:
Siegrid Schoch
Source:
Zeitschrift für Naturforschung 2014 v.33 no.9-10 pp. 712-714
ISSN:
1865-7125
Subject:
alcohols; beans; biosynthesis; chlorophyll; esterification; etiolation; high performance liquid chromatography; hydrogenation; irradiation; leaves; pigments; scotophase; white light
Abstract:
... The accumulation of esterfied chlorophyll a (Chl a) in etiolated bean leaves was determined during a dark period of 60 minutes after 1 minute irradiation with white light. The separation of the pigments esterified with geranylgeraniol (GG), dihydrogeranylgeraniol (DHGG), tetrahydrogeranylgeraniol (THGG) and phytol (P) was performed by HPLC. The last step for chlorophyll a biosynthesis is confirmed ...
DOI:
10.1515/znc-1978-9-1018

20. Phycoremediation of alcohol distillery wastewater with a novel Chlorella sorokiniana strain cultivated in a photobioreactor monitored on-line via chlorophyll fluorescence

Author:
Alexei Solovchenko; Sergei Pogosyan; Olga Chivkunova; Irina Selyakh; Larisa Semenova; Elena Voronova; Pavel Scherbakov; Ivan Konyukhov; Konstantin Chekanov; Mikhail Kirpichnikov; Elena Lobakova
Source:
Algal research 2014 v.6 pp. 234-241
ISSN:
2211-9264
Subject:
Chlorella sorokiniana; alcohols; algae culture; biodiesel; biomass; bioremediation; chemical oxygen demand; chlorophyll; distillery effluents; fatty acid composition; fatty acids; feedstocks; fluorescence; fuel production; microalgae; monitoring; nitrates; phosphates; photobioreactors; sulfates; wastewater treatment
Abstract:
... Possibilities of alcohol distillery wastewater (ADW) bioremediation with a new Chlorella sorokiniana from White Sea cultivated in semi-batch mode in a high-density photobioreactor monitored on-line via chlorophyll fluorescence were investigated. Upon inoculation of the ADW, a stable alga-bacterial consortium was formed. A decrease in chemical oxygen demand (COD) of the ADW from 20000 to ca. 1500mg ...
DOI:
10.1016/j.algal.2014.01.002