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1. Alternative pathway to photorespiration protects growth and productivity at elevated temperatures in a model crop

Author:
Amanda P. Cavanagh; Paul F. South; Carl J. Bernacchi; Donald R. Ort
Source:
Plant biotechnology journal 2022 v.20 no.4 pp. 711-721
ISSN:
1467-7644
Subject:
C3 plants; agricultural land; biomass production; biotechnology; carbon dioxide; chloroplasts; climate; climate change; crops; enzymes; evaporative demand; photorespiration; rice; soybeans; temperature; tobacco; wheat
Abstract:
... Adapting crops to warmer growing season temperatures is a major challenge in mitigating the impacts of climate change on crop production. Warming temperatures drive greater evaporative demand and can directly interfere with both reproductive and vegetative physiological processes. Most of the world’s crop species have C3 photosynthetic metabolism for which increasing temperature means higher rates ...
DOI:
10.1111/pbi.13750

2. Annual isotopic diet (δ13C, δ18O) of Notiomastodon platensis (Ameghino, 1888) from Brazilian Intertropical Region

Author:
Mário André Trindade Dantas; Alexandre Liparini; Lidiane Asevedo; Lucas de Melo França; Alexander Cherkinsky
Source:
Quaternary international 2022 v.610 pp. 38-43
ISSN:
1040-6182
Subject:
C3 plants; C4 plants; Holocene epoch; Proboscidea (mammals); carbon isotopes; dental calculus; diet; extinct species; feeding behavior; fossils; grasses; oxygen isotopes; paleoclimatology; rain; stable isotopes; tooth enamel; Brazil
Abstract:
... Notiomastodon platensis was an endemic South American proboscidean, which could reach about six tons and had a mixed feeder diet with predominance of C₄ grasses in Brazilian Intertropical Region (BIR). In the last decades, its feeding behavior has been rebuilt mainly through dental calculus, enamel microwear and stable isotope analyses. However, all these techniques allow us to know only punctual ...
DOI:
10.1016/j.quaint.2021.06.015

3. Benchmarking source specific isotopic ratios of levoglucosan to better constrain the contribution of domestic heating to the air pollution

Author:
Nana Khundadze; Christoph Küppers; Beatrix Kammer; Andrius Garbaras; Agne Masalaite; Holger Wissel; Andreas Lücke; Bezhan Chankvetadze; Jochen Rudolph; Astrid Kiendler-Scharr; Iulia Gensch
Source:
Atmospheric environment 2022 v.268 pp. 118842
ISSN:
1352-2310
Subject:
C3 plants; C4 plants; aerosols; air pollution; biomass; biosynthesis; carbon; carbon dioxide fixation; cellulose; coal; combustion; corn; environment; heat; smoke; Europe
Abstract:
... We report source specific isotope ratios of levoglucosan, the specific biomass burning tracer, in aerosol particles from the combustion of selected woods used for domestic heating in Europe, of coals containing cellulose (lignites) as well as of corn, a C4 plant. Here, we combine compound specific δ¹³C measurements of levoglucosan with total carbon δ¹³C of parent materials, to assess isotopic frac ...
DOI:
10.1016/j.atmosenv.2021.118842

4. Influence of reservoir management on the source and transport of particulate organic carbon in surface waters of the lower Yellow River

Author:
Yingchun Lv; Yuxuan Ren; Xiaoyao Li
Source:
Journal of soils and sediments 2022 v.22 no.9 pp. 2548-2556
ISSN:
1439-0108
Subject:
C3 plants; anthropogenic activities; detritus; global carbon budget; particulate organic carbon; particulates; sediments; soil; stable isotopes; surface water; transportation; Yellow River
Abstract:
... PURPOSE: Large rivers play an important role in the global carbon cycle through the transportation of particulate organic carbon (POC) from the continent to the ocean. Human disturbance such as water–sediment regulation (WSR) significantly changes the downstream fluxes of sediment and POC. However, the sources and variations of POC affected by WSR in the lower Yellow River remain poorly understood ...
DOI:
10.1007/s11368-022-03268-y

5. Leaf photosynthesis: do endophytes have a say?

Author:
T.S. Suryanarayanan; M.S. Ayesha; R. Uma Shaanker
Source:
Trends in plant science 2022 v.27 no.10 pp. 968-970
ISSN:
1360-1385
Subject:
carbon dioxide; ecosystems; endophytes; fungi; leaves; photosynthesis
Abstract:
... Endophytes, both bacterial and fungal, constitute an integral component of the leaf ecosystem. Here we argue that the respiratory metabolism of endophytes in the intercellular spaces of leaves could have a significant role in enhancing leaf photosynthesis by enriching the internal CO₂ concentration, especially in C3 plants. ...
DOI:
10.1016/j.tplants.2022.07.009

6. Sooting transition diagnostics in counter-flow flames of C4 isomer fuels

Author:
Chen Chen; Xuan Zhao; Dandan Qi; Kaixuan Yang; Lei Xu; Tianjiao Li; Yaoyao Ying; Dong Liu
Source:
Energy 2022 pp. 125612
ISSN:
0360-5442
Subject:
C3 plants; algorithms; alkenes; butanes; diagnostic techniques; energy; fuels; gas chromatography; isomers; kinetics; soot; streams
Abstract:
... Macroscopic transition processes of soot formation for 1-butene, isobutene, n-butane and isobutane counterflow diffusion flames from sooting-free to heavy-sooting were studied by varying fuel concentration (XF) in the fuel stream. A novel optical diagnostic algorithm was proposed to classify different sooting transition stages in flames. Effects of saturated/unsaturated bonds and linear/branched s ...
DOI:
10.1016/j.energy.2022.125612

7. Variabilities of δ13C and carbonaceous components in ambient PM2.5 in Northeast India: Insights into sources and atmospheric processes

Author:
Adnan Mateen Qadri; Gyanesh Kumar Singh; Debajyoti Paul; Tarun Gupta; Shahadev Rabha; Nazrul Islam; Binoy K. Saikia
Source:
Environmental research 2022 v.214 pp. 113801
ISSN:
0013-9351
Subject:
C3 plants; aerodynamics; air; biofuels; biomass; cluster analysis; combustion; monsoon season; organic carbon; particulates; photooxidation; research; stable isotopes; winter; India
Abstract:
... A year-long sampling campaign of ambient PM₂.₅ (particulate matter with aerodynamic diameter ≤2.5 mm) at a regional station in the North-Eastern Region (NER) of India was performed to understand the sources and formation of carbonaceous aerosols. Mass concentration, carbon fractions (organic and elemental carbon), and stable carbon isotope ratio (δ¹³C) of PM₂.₅ were measured and studied along with ...
DOI:
10.1016/j.envres.2022.113801

8. C3 plant carbon isotope discrimination does not respond to CO2 concentration on decadal to centennial timescales

Author:
Rebekah A. Stein; Nathan D. Sheldon; Selena Y. Smith
Source:
new phytologist 2021 v.229 no.5 pp. 2576-2585
ISSN:
0028-646X
Subject:
C3 plants; Pinus strobus; Platycladus orientalis; Populus tremuloides; Thuja occidentalis; Thuja plicata; atmospheric precipitation; carbon dioxide; carbon isotopes; climatic factors; edaphic factors; geological eons; industrialization; meta-analysis; museums; phylogeny; plant biochemistry; plant response; temperature
Abstract:
... Plant carbon isotope discrimination is complex, and could be driven by climate, evolution and/or edaphic factors. We tested the climate drivers of carbon isotope discrimination in modern and historical plant chemistry, and focus in particular on the relationship between rising [CO₂] over Industrialization and carbon isotope discrimination. We generated temporal records of plant carbon isotopes fro ...
DOI:
10.1111/nph.17030

9. CAM‐physiology and carbon gain of the orchid Phalaenopsis in response to light intensity, light integral and CO2

Author:
Sander W. Hogewoning; Stefan A.J. van den Boogaart; Evelien van Tongerlo; Govert Trouwborst
Source:
Plant, cell and environment 2021 v.44 no.3 pp. 762-774
ISSN:
0140-7791
Subject:
C3 plants; Crassulacean acid metabolism; Phalaenopsis; carbon; carbon dioxide; carboxylation; decarboxylation; epiphytes; light intensity; malates; phosphoenolpyruvate carboxylase; photoperiod; ribulose-bisphosphate carboxylase
Abstract:
... The regulation of photosynthesis and carbon gain of crassulacean acid metabolism (CAM) plants has not yet been disclosed to the extent of C3‐plants. In this study, the tropical epiphyte Phalaenopsis cv. “Sacramento” was subjected to different lighting regimes. Photosynthesis and biochemical measuring techniques were used to address four specific questions: (1) the response of malate decarboxylatio ...
DOI:
10.1111/pce.13960

10. Comparison between isotope ratio mass spectrometry (IRMS) and cavity ring‐down spectroscopy (CRDS) for analysing the carbon isotope ratio and detection of adulteration in coconut water

Author:
Sang‐Arun Meepho; Kiattipong Kamdee; Chakrit Saengkorakot; Phornthip Thapprathum; Kunchit Judprasong
Source:
International journal of food science & technology 2021 v.56 no.12 pp. 6611-6617
ISSN:
0950-5423
Subject:
C3 plants; C4 plants; added sugars; adulterated products; carbon; coconut water; combustion; food science; fructose; glucose; mass spectrometry; sucrose; technology; Thailand
Abstract:
... This study investigated the carbon isotope ratio (¹³C/¹²C, δ¹³C in unit of parts per thousand or per mill, ‰) of different coconut water samples using elemental analysis isotope ratio mass spectrometry (EA‐IRMS) and combustion module cavity ring‐down spectroscopy (CM‐CRDS). Natural coconut water from young coconuts from 12 provinces in Thailand (n = 94), adulterated coconut water containing three ...
DOI:
10.1111/ijfs.15321

11. Different physiological responses of C3 and C4 plants to nanomaterials

Author:
Tonghao Bai; Peng Zhang; Zhiling Guo; Andrew J. Chetwynd; Mei Zhang; Muhammad Adeel; Mingshu Li; Kerui Guo; Ruize Gao; Jianwei Li; Yi Hao; Yukui Rui
Source:
Environmental science and pollution research 2021 v.28 no.20 pp. 25542-25551
ISSN:
0944-1344
Subject:
C3 photosynthesis; C3 plants; C4 plants; chlorophyll; corn; pollution; research; rice; soil; thylakoids; toxicity; wheat
Abstract:
... Several studies have previously reported that nanomaterial uptake and toxicity in plants are species dependent. However, the differences between photosynthetic pathways, C3 and C4, following nanomaterial exposure are poorly understood. In the current work, wheat and rice, two C3 pathway species are compared to amaranth and maize, which utilize the C4 photosynthetic mechanism. These plants were cul ...
DOI:
10.1007/s11356-021-12507-7

12. Drought resistance and resilience: The role of soil moisture–plant interactions and legacies in a dryland ecosystem

Author:
David L. Hoover; Alix A. Pfennigwerth; Michael C. Duniway
Source:
journal of ecology 2021 v.109 no.9 pp. 3280-3294
ISSN:
0022-0477
Subject:
Achnatherum hymenoides; C3 plants; C4 plants; Ephedra viridis; Pleuraphis jamesii; arid lands; atmospheric precipitation; cold season; drought; drought tolerance; ecological resilience; ecosystems; perennial grasses; phenology; phytomass; plant available water; plant communities; seasonal variation; shrubs; soil-plant interactions; warm season; water stress
Abstract:
... In many regions of the world, climate change is projected to reduce water availability through changes in the hydrological cycle, including more frequent and intense droughts, as well as seasonal shifts in precipitation. In water‐limited ecosystems, such as drylands, lower soil water availability may exceed the adaptive capacity of many organisms, leading to cascading ecological effects during (co ...
Handle:
10113/7506630
DOI:
10.1111/1365-2745.13681

13. Isotopic constraints on sources of organic matter in surface sediments from two north–south oriented lakes of the Yunnan Plateau, Southwest China

Author:
Lizeng Duan; Hucai Zhang; Fengqin Chang; Donglin Li; Qi Liu; Xiaonan Zhang; Fengwen Liu; Yang Zhang
Source:
Journal of soils and sediments 2022 v.22 no.5 pp. 1597-1608
ISSN:
1439-0108
Subject:
Bayesian theory; C3 plants; lakes; plankton; rivers; sediments; sewage; soil; total nitrogen; total organic carbon; watersheds; China
Abstract:
... PURPOSE: Lake sediment is an important carbon reservoir, and knowledge of organic carbon distribution and its controlling factors can provide insights into the effects of natural processes and anthropogenic pressures on carbon dynamics in drainage basin. MATERIALS AND METHODS: Here, we combined total organic carbon (TOC), total nitrogen (TN), and their stable isotopes (δ¹³C and δ¹⁵N) with a Bayesi ...
DOI:
10.1007/s11368-022-03191-2

14. Lipid Peroxidation Rates, Hydrogen Peroxide Content, and Superoxide Dismutase Activity in Leaves of a Facultative CAM Plant Hylotelephium triphyllum (Haw.) Holub and a C3 Plant Plantago media L. under Natural Environmental Conditions

Author:
E. V. Silina; G. N. Tabalenkova; T. K. Golovko
Source:
Russian journal of plant physiology 2021 v.68 no.4 pp. 754-762
ISSN:
1021-4437
Subject:
C3 plants; Crassulacean acid metabolism; Hylotelephium; Russia; acidity; floodplains; hydrogen peroxide; lipid peroxidation; malates; meadows; oxidative stress; paraquat; phosphoenolpyruvate carboxylase; plant physiology; sap; superoxide dismutase; taiga
Abstract:
... Key indicators of pro-/antioxidant status were studied in leaves of Plantago media L. (C₃ species) and Hylotelephium triphyllum (Haw.) Holub (facultative CAM species) grown in the unclosed floodplain meadow biogeocenosis in the middle taiga subzone of the Komi Republic (European Northeast of Russia). During the period of reproductive development, the average content of lipid peroxidation products ...
DOI:
10.1134/S102144372104018X

15. Quantifying the contribution of biophysical and environmental factors in uncertainty of modeling canopy conductance

Author:
Jiaming Xu; Bingfang Wu; Dongryeol Ryu; Nana Yan; Weiwei Zhu; Zonghan Ma
Source:
Journal of hydrology 2021 v.592 pp. 125612
ISSN:
0022-1694
Subject:
C3 plants; C4 plants; canopy; data collection; eddy covariance; evapotranspiration; grasses; latent heat flux; leaves; models; rivers; stomatal conductance; trees; uncertainty; vapor pressure deficit; China
Abstract:
... Canopy conductance (Gc) is a crucial variable in accurately estimating latent heat flux and evapotranspiration (ET) over vegetated surfaces. Gc is highly dependent on the plant species and the surrounding environment; consequently, it is difficult to accurately simulate Gc using a simplified universal model. A number of empirical parameters and functional forms have been introduced to appropriatel ...
DOI:
10.1016/j.jhydrol.2020.125612

16. Rhizosphere: A fascinating paleovegetational and paleoclimatic new intermediary in the Quaternary fluvio-lacustrine set-up of the Purna alluvial basin, central India

Author:
Ajab Singh; Ashok K. Srivastava
Source:
Rhizosphere 2021 v.20 pp. 100430
ISSN:
2452-2198
Subject:
C3 plants; C4 plants; Pleistocene epoch; alluvial land; arid zones; calcium carbonate; forests; grasslands; lacustrine sediments; leaching; microbial communities; paleobotany; paleoclimatology; paleoecology; paleosolic soil types; rhizosphere; rhizosphere fungi; rivers; roots; soil fungi; soil horizons; India
Abstract:
... The rhizosphere, a fascinating vegetational and climatic negotiator, has been discovered and being reported from widespread Quaternary fluvio-lacustrine sediments of the Purna alluvial basin, central India. These organo-sedimentary structures representing diversified morphologies i.e., rounded to sub-rounded, spherical to sub-spherical, small to large surfaced, calcretized bodies of 7–20 cm diamet ...
DOI:
10.1016/j.rhisph.2021.100430

17. Vegetation change in the Baringo Basin, East Africa across the onset of Northern Hemisphere glaciation 3.3–2.6 Ma

Author:
Rachel L. Lupien; James M. Russell; Chad L. Yost; John D. Kingston; Alan L. Deino; Jon Logan; Anna Schuh; Andrew S. Cohen
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2021 v.570 pp. 109426
ISSN:
0031-0182
Subject:
C3 plants; C4 plants; Pliocene epoch; basins; biomarkers; carbon; carbonates; climate; drying; evolution; foraging; forests; fossils; glaciation; grasses; grasslands; ice; isotopes; lakes; landscapes; latitude; leaves; organic matter; paleosolic soil types; savannas; Kenya
Abstract:
... Vegetation in East Africa is generally thought to have shifted from forests to more open grasslands and savannas as global climate cooled and high-latitude ice sheets expanded during the Plio-Pleistocene. Such a shift would have greatly influenced landscape resources, and potentially hominin evolution as well. Existing records of African vegetation spanning these time-scales are generally derived ...
DOI:
10.1016/j.palaeo.2019.109426

18. A comparative authentication study of fresh fruit and vegetable juices using whole juice and sugar-specific stable isotopes

Author:
Hao Wu; Xiuwen Zhou; Haiquan Chen; Baohui Jin; Zhi Yan; Liqi Xie; Haichao Zhou; Karyne M. Rogers; Guanghui Lin
Source:
Food chemistry 2022 v.373 pp. 131535
ISSN:
0308-8146
Subject:
C3 plants; C4 plants; adulterated products; carbon; flavor; food chemistry; fructose; fruit pulp; fruits; glucose; industry; nutrition; oxygen isotopes; prices; raw fruit; stable isotopes; sucrose; vegetables
Abstract:
... Not-from-concentrate (NFC) juice has better nutrition, flavor and higher price than reconstituted juice. Accordingly, NFC juice is prone to adulteration and is an ongoing industry problem that has not yet been resolved. Undeclared addition of water and sugar are the main forms of NFC juice adulteration. This paper investigates the carbon and oxygen stable isotope ratios (δ¹³C and δ¹⁸O values) of t ...
DOI:
10.1016/j.foodchem.2021.131535

19. The differential tolerance of C3 and C4 cereals to aluminum toxicity is faded under future CO2 climate

Author:
Hamada AbdElgawad; Alexandra de Soua; Modhi O. Alotaibi; Afrah E. Mohammed; Sébastjen Schoenaers; Samy Selim; Ahmed M. Saleh
Source:
Plant physiology and biochemistry 2021 v.169 pp. 249-258
ISSN:
0981-9428
Subject:
C3 plants; aluminum; antioxidant activity; bioavailability; carbon dioxide; climate; corn; crops; exudation; oats; photosynthesis; plant growth; ribulose-bisphosphate carboxylase; soil pH; toxicity; wheat
Abstract:
... Industrial activities have led to a gradual and global increase in soil aluminum (Al) and atmospheric CO₂ concentrations. Al bioavailability strongly depends on the soil pH, which in turn is affected by atmospheric CO₂ levels. In spite of the concurrent impact which Al and elevated CO₂ (eCO₂) could have on plants, their interaction and how it might affect the growth of economically important crop ...
DOI:
10.1016/j.plaphy.2021.11.018

20. Adaptive, Multipaddock Rotational Grazing Management: A Ranch-Scale Assessment of Effects on Vegetation and Livestock Performance in Semiarid Rangeland

Author:
David J. Augustine; Justin D. Derner; María E. Fernández-Giménez; Lauren M. Porensky; Hailey Wilmer; David D. Briske; the CARM Stakeholder Group
Source:
Rangeland ecology & management 2020 v.73 no.6 pp. 796-810
ISSN:
1550-7424
Subject:
C3 plants; adaptive management; atmospheric precipitation; cattle; cattle feeding; continuous grazing; forage production; graminoids; grazing management; liveweight gain; pasture plants; pastures; perennial grasses; range management; rangelands; rotational grazing; semiarid zones; stocking rate; vegetation; weight gain
Abstract:
... A comprehensive understanding of multipaddock, rotational grazing management on rangelands has been slow to develop, and the contribution of adaptive management (Briske et al. 2011) and sufficient scale (Teague and Barnes 2017) have been identified as key omissions. We designed an experiment to compare responses of vegetation and cattle in an adaptively managed, multipaddock, rotational system wit ...
Handle:
10113/7083109
DOI:
10.1016/j.rama.2020.07.005
CHORUS:
10.1016/j.rama.2020.07.005