Results 21 to 30 of about 73,975 (239)
Plants, 2021 The decline in CO2 assimilation in leaves exposed to decreasing frequencies of pulsed light is well characterized, in contrast to the regulation of photosynthetic electron transport under these conditions.
Marguerite Cinq-Mars, Guy Samson
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Regulation of cyclic and linear electron flow in higher plants [PDF]
Proceedings of the National Academy of Sciences, 2011 Cyclic electron flow is increasingly recognized as being essential in plant growth, generating a pH gradient across thylakoid membrane (ΔpH) that contributes to ATP synthesis and triggers the protective process of nonphotochemical quenching (NPQ) under stress conditions. Here, we report experiments demonstrating the importance of that ΔpH in protecting
Joliot, Pierre +1 more
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Photorespiration Alleviates Photoinhibition of Photosystem I under Fluctuating Light in Tomato
Plants, 2022 Fluctuating light (FL) is a typical natural light stress that can cause photodamage to photosystem I (PSI). However, the effect of growth light on FL-induced PSI photoinhibition remains controversial.
Qi Shi +4 more
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Frontiers in Plant Science, 2023 Plants have multiple mechanisms to maintain efficient photosynthesis. Photosynthetic cyclic electron transports around photosystem I (CET), which includes the PGR5/PGRL1 and NDH pathways, and photorespiration play a crucial role in photosynthetic ...
Qi Chen +4 more
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Cyclic Flow of Electrons within PSII in Thylakoid Membranes [PDF]
Plant and Cell Physiology, 2001 In photosynthesis, the electrons released from PSII are considered to be shared mainly by carbon metabolism and the water-water cycle. We demonstrated previously that some electrons are utilized in a CO2- and O2-independent manner in leaves of wild watermelon [Miyake and Yokota (2000) Plant Cell Physiol: 41: 335].
C, Miyake, A, Yokota
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Energy Storage of Linear and Cyclic Electron Flows in Photosynthesis [PDF]
Plant Physiology, 1992 The energy storage of photosynthesis in the green alga Chlorella vulgaris was determined by pulsed, time-resolved photoacoustics. The energy storage of the linear electron transfer process in photosynthesis, of cyclic photosystem (PS) I, and possibly of PSII was determined by selection of excitation wavelength and of flash interval.
Y, Cha, D C, Mauzerall
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Computational Analysis of Alternative Photosynthetic Electron Flows Linked With Oxidative Stress
Frontiers in Plant Science, 2021 During photosynthesis, organisms respond to their energy demand and ensure the supply of energy and redox equivalents that sustain metabolism. Hence, the photosynthetic apparatus can, and in fact should, be treated as an integrated supply-demand system ...
Nima P. Saadat +8 more
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NTRC Effects on Non-Photochemical Quenching Depends on PGR5
Antioxidants, 2021 Non-photochemical quenching (NPQ) protects plants from the detrimental effects of excess light. NPQ is rapidly induced by the trans-thylakoid proton gradient during photosynthesis, which in turn requires PGR5/PGRL1-dependent cyclic electron flow (CEF ...
Belen Naranjo +3 more
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PGRL2 triggers degradation of PGR5 in the absence of PGRL1
Nature Communications, 2021 It is currently thought that the thylakoid proteins PGRL1 and PGR5 form a complex to mediate cyclic electron flow (CEF) around photosystem I. Here the authors show that CEF can in fact be mediated by PGR5 alone and that PGRL1 and the homologous PGRL2 ...
Thilo Rühle +7 more
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Photosynthetica, 2023 In the subtropics, a few tropical tree species are distributed and planted for ornamental and horticultural purposes; however, the photosynthesis of these species can be impaired by chilling.
V.S.J. SUNOJ +6 more
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