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PGR5 is required to avoid photosynthetic oscillations during light transitions
2023Abstract The production of ATP and NADPH by the light reactions of photosynthesis and their consumption by the Calvin-Benson-Bassham (CBB) cycle and other downstream metabolic reactions requires careful regulation. Environmental shifts perturb this careful balance, leading to photo-oxidative stress and losses in CO
Gustaf E. Degen +2 more
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Photosynthesis Research, 2018 The proton motive force (PMF) across the chloroplast thylakoid membrane that is generated by electron transport during photosynthesis is the driving force for ATP synthesis in plants. The PMF mainly arises from the oxidation of water in photosystem II and from electron transfer within the cytochrome b6f complex. There are two electron transfer pathways
Mai Duy Luu Trinh, Shinji Masuda
exaly +5 more sources
Plant Physiology, 2023
Abstract Plants have evolved photosynthetic regulatory mechanisms to maintain homeostasis in response to light changes during diurnal transitions and those caused by passing clouds or by wind. One such adaptation directs photosynthetic electron flow to a cyclic pathway to alleviate excess energy surges.
Amit Kumar Chaturvedi +3 more
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Abstract Plants have evolved photosynthetic regulatory mechanisms to maintain homeostasis in response to light changes during diurnal transitions and those caused by passing clouds or by wind. One such adaptation directs photosynthetic electron flow to a cyclic pathway to alleviate excess energy surges.
Amit Kumar Chaturvedi +3 more
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2023
ABSTRACT PROTON GRADIENT REGULATION5 (PGR5) is thought to promote cyclic electron flow (CEF) and its deficiency causes increased photosensitivity of photosystem I (PSI), leading to lethality under fluctuating light (FL). By screening for suppressor mutations that rescue FL lethality of pgr5
Jan-Ferdinand Penzler +5 more
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ABSTRACT PROTON GRADIENT REGULATION5 (PGR5) is thought to promote cyclic electron flow (CEF) and its deficiency causes increased photosensitivity of photosystem I (PSI), leading to lethality under fluctuating light (FL). By screening for suppressor mutations that rescue FL lethality of pgr5
Jan-Ferdinand Penzler +5 more
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Photosynthesis Research
In this study, we aimed to understand the role of cyclic electron transport (CET) in the acclimation process in response to high salinity stress by comparing wild-type Chlamydomonas reinhardtii with CET deficient mutants, Proton Gradient Regulation 5 (PGR5), and Proton Gradient Regulation Like 1 (PGRL1). Cells grown in photoautotrophic conditions under
Siva Naga Sai Damaraju +7 more
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In this study, we aimed to understand the role of cyclic electron transport (CET) in the acclimation process in response to high salinity stress by comparing wild-type Chlamydomonas reinhardtii with CET deficient mutants, Proton Gradient Regulation 5 (PGR5), and Proton Gradient Regulation Like 1 (PGRL1). Cells grown in photoautotrophic conditions under
Siva Naga Sai Damaraju +7 more
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Characterization of Regulatory Factors of PGR5-Dependent PSI Cyclic Electron Transport
2008Photosynthetic electron transport consists of two main routes: linear and photosystem I (PSI) cyclic electron transport. Although PSI cyclic electron transport has been proved to be essential for photosynthesis and photoprotection, our knowledge on the route of electrons is very limited.
Yuki Okegawa +3 more
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Photosynthesis Research, 2020
Light is crucial for photosynthesis, but the amount of light that exceeds an organism's assimilation efficacy can lead to photo-oxidative damage and even cell death. In Chlamydomonas (C). reinhardtii cyclic electron flow (CEF) is very important for the elicitation of non-photochemical quenching (NPQ) by controlling the acidification of thylakoid lumen.
Ranay Mohan Yadav +4 more
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Light is crucial for photosynthesis, but the amount of light that exceeds an organism's assimilation efficacy can lead to photo-oxidative damage and even cell death. In Chlamydomonas (C). reinhardtii cyclic electron flow (CEF) is very important for the elicitation of non-photochemical quenching (NPQ) by controlling the acidification of thylakoid lumen.
Ranay Mohan Yadav +4 more
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Analysis of PGR5 conferring the resistance to Antimycin A
Plant and Cell Physiology Supplement, 2011Sugimoto, Kazuhiko +5 more
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