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Plant Science, 2019
In angiosperms, cyclic electron flow (CEF) around photosystem I (PSI) is more important for photoprotection under fluctuating light than under constant light. However, the underlying mechanism is not well known.
Ying-Jie Yang, Xiao-Xi Ding, Wei Huang
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In angiosperms, cyclic electron flow (CEF) around photosystem I (PSI) is more important for photoprotection under fluctuating light than under constant light. However, the underlying mechanism is not well known.
Ying-Jie Yang, Xiao-Xi Ding, Wei Huang
semanticscholar +1 more source
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1967
Abstract Optimal cyclic photophosphorylation with reduced indophenols under anaerobic conditions was shown to require a critical redox balance. Over-reduction inhibited this phosphorylation; addition of oxidizing agents like ferricyanide, air, ferredoxin or ferredoxin plus triphosphopyridine nucleotide relieved the inhibition.
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Abstract Optimal cyclic photophosphorylation with reduced indophenols under anaerobic conditions was shown to require a critical redox balance. Over-reduction inhibited this phosphorylation; addition of oxidizing agents like ferricyanide, air, ferredoxin or ferredoxin plus triphosphopyridine nucleotide relieved the inhibition.
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Studies on the pathway of cyclic electron flow in mesophyll chloroplasts of a C4 plant
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 19761. Cyclic photophosphorylation driven by white light, as followed by 14CO2 fixation by mesophyll chloroplast preparations of the C4 plant Digitaria sanguinalis, was specifically inhibited by disalicylidenepropanediamine (DSPD), antimycin A, 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB), 1-ethyl-3(3-dimethyl-aminopropyl)-carbodiimide (EDAC ...
S C, Huber, G E, Edwards
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Plant Physiology and Biochemistry, 2014
In chloroplasts, regulated formation of the proton gradient across the thylakoid membrane (ΔpH) is important for controlling non-photochemical quenching (NPQ), which is crucial for plants to perform photosynthesis under fluctuating light conditions. The ΔpH is generated by two electron flows: the linear electron flow (LEF) and the cyclic electron flow (
Hiroyuki Ohta +2 more
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In chloroplasts, regulated formation of the proton gradient across the thylakoid membrane (ΔpH) is important for controlling non-photochemical quenching (NPQ), which is crucial for plants to perform photosynthesis under fluctuating light conditions. The ΔpH is generated by two electron flows: the linear electron flow (LEF) and the cyclic electron flow (
Hiroyuki Ohta +2 more
exaly +3 more sources
Cyclic electron flow around photosystem I is enhanced at low pH
Plant Physiology and Biochemistry, 2014Earlier studies have shown that at low pH (pH 5.5), PS II fluorescence decreases with concomitant increase in PS I fluorescence (Singh-Rawal et al., 2010). In order to shed light on the reasons of the above stated change, spinach leaf discs were treated with buffers of different pH (7.5, 6.5 and 5.5)and decrease in the photochemical quantum yield of PS
Teena, Tongra +2 more
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Evidence for the role of cyclic electron flow in photoprotection for oxygen-evolving complex
Journal of Plant Physiology, 2016Cyclic electron flow (CEF) alleviates PSII photo-inhibition under high light by at least two different mechanisms: one is liked to thermal energy dissipation (qE) and the other one is independent of qE. However, the latter mechanism is unclear. Because the photodamage to PSII primarily occurred at the oxygen-evolving complex (OEC), and the stability of
Wei, Huang +4 more
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Quantification of Cyclic Electron Flow in Spinach Leaf Discs
2013We quantified the photosynthetic cyclic electron flux (CEF) around Photosystem I as the difference between the total electron flux through PS I (ETR1) and the linear electron flux through both photosystems. Both measurements were made in the whole tissue of spinach leaf discs illuminated in the same geometry and in CO2-enriched air to suppress ...
Jiancun Kou +4 more
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Cyclic electron flow around photosystem II in silico: How it works and functions in vivo
Photosynthesis Research, 2023Apostolos Zournas +2 more
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