The plastoquinone pool, poised for cyclic electron flow? [PDF]
Frontiers in Plant Science, 2015 Electron and proton transfer plays a central role in coupling light capture to the chemical reactions of carbon metabolism. Electrons, originating from charge separation in the photosystems, are eventually transferred to NADP+ to form NADPH; it is denoted as linear electron flow (LEF).
Jean eAlric
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Activation of cyclic electron flow by hydrogen peroxide in vivo. [PDF]
Proc Natl Acad Sci U S A, 2015 Significance Cyclic electron flow around photosystem I (CEF) is critical for balancing the energy budget of photosynthesis, but its regulation is not well understood. Our results provide evidence that hydrogen peroxide, which is produced as a result of imbalances in chloroplast redox state, acts as a signaling agent to activate CEF in higher ...
Strand DD +5 more
europepmc +5 more sources
Cyclic Electron Flow around Photosystem I Promotes ATP Synthesis Possibly Helping the Rapid Repair of Photodamaged Photosystem II at Low Light [PDF]
Frontiers in Plant Science, 2018 In higher plants, moderate photoinhibition of photosystem II (PSII) leads to a stimulation of cyclic electron flow (CEF) at low light, which is accompanied by an increase in the P700 oxidation ratio.
Wei Huang +4 more
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A security network in PSI photoprotection: regulation of photosynthetic control, NPQ and O2 photoreduction by cyclic electron flow. [PDF]
Frontiers in Plant Science, 2015 Cyclic Electron Flow (CEF) is a regulator of acceptor-side limitations and has multiple functions in the green alga, Chlamydomonas reinhardtii.
Frédéric eChaux +8 more
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Tomato and mini-cucumber tolerance to photoperiodic injury involves photorespiration and the engagement of nighttime cyclic electron flow from dynamic LEDs [PDF]
Frontiers in Plant ScienceControlled environment agriculture (CEA) is critical for achieving year-round food security in many regions of the world. CEA is a resource-intensive endeavor, with lighting consuming a large fraction of the energy.
Telesphore R. J. G. Marie +3 more
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The labile interactions of cyclic electron flow effector proteins. [PDF]
J Biol Chem, 2018 The supramolecular organization of membrane proteins (MPs) is sensitive to environmental changes in photosynthetic organisms. Isolation of MP supercomplexes from the green algae Chlamydomonas reinhardtii, which are believed to contribute to cyclic electron flow (CEF) between the cytochrome b6f complex (Cyt-b6f) and photosystem I (PSI), proved difficult.
Buchert F +5 more
europepmc +5 more sources
Photosynthetica, 2022 Haberlea rhodopensis Friv. is unique with its ability to survive desiccation to an air-dry state during periods of extreme drought and freezing temperatures.
K. GEORGIEVA +4 more
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Regulation of cyclic electron flow by chloroplast NADPH-dependent thioredoxin system. [PDF]
Plant Direct, 2018 Abstract Linear electron transport in the thylakoid membrane drives photosynthetic NADPH and ATP production, while cyclic electron flow ( CEF ) around photosystem I only promotes the ...
Nikkanen L +6 more
europepmc +5 more sources
The Effects of Cold Stress on Photosynthesis in Hibiscus Plants. [PDF]
PLoS ONE, 2015 The present work studies the effects of cold on photosynthesis, as well as the involvement in the chilling stress of chlororespiratory enzymes and ferredoxin-mediated cyclic electron flow, in illuminated plants of Hibiscus rosa-sinensis.
Miriam Paredes, María José Quiles
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Photoprotective roles of ascorbate and cstyleZostera marinacstyle
Photosynthetica, 2021 The oxygen-evolving complex (OEC) of Zostera marina is prone to deactivation under visible light, which results in a formation of the long-lived radical P680+. The mechanism to prevent damage caused by P680+ remains unclear.
W. ZHAO +6 more
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