High efficient cyclic electron flow and functional supercomplexes in Chlamydomonas cells. [PDF]
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2022 A very high rate for cyclic electron flow (CEF) around PSI (~180 s-1 or 210 s-1 in minimum medium or in the presence of a carbon source respectively) is measured in the presence of methyl viologen (MV) in intact cells of Chlamydomonas reinhardtii under ...
P. Joliot +3 more
semanticscholar +5 more sources
Cyclic electron flow: facts and hypotheses
Photosynthesis Research, 2016 Over the last 15 years, research into the process of cyclic electron flow in photosynthesis has seen a huge resurgence. Having been considered by some in the early 1990s as a physiologically unimportant artefact, it is now recognised as essential to normal plant growth.
Finazzi, Giovanni, Johnson, Giles N.
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Responses of Linear and Cyclic Electron Flow to Nitrogen Stress in an N-Sensitive Species Panax notoginseng [PDF]
Frontiers in Plant Science, 2022 Nitrogen (N) is a primary factor limiting leaf photosynthesis. However, the mechanism of N-stress-driven photoinhibition of the photosystem I (PSI) and photosystem II (PSII) is still unclear in the N-sensitive species such as Panax notoginseng, and thus ...
Zhu Cun +17 more
doaj +2 more sources
Cyclic electron flow compensates loss of PGDH3 and concomitant stromal NADH reduction [PDF]
Scientific ReportsIn nature plants constantly experience changes in light intensities. Low illumination limits photosynthesis and growth. However, also high light intensities are a threat to plants as the photosynthetic machinery gets damaged when the incoming energy ...
Moritz Krämer +6 more
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Cyclic electron flow and Photosystem II-less photosynthesis.
Functional Plant BiologyOxygenic photosynthesis is characterised by the cooperation of two photo-driven complexes, Photosystem II (PSII) and Photosystem I (PSI), sequentially linked through a series of redox-coupled intermediates.
M. Ermakova, D. Fitzpatrick, A. Larkum
semanticscholar +3 more sources
Cyclic electron flow and light partitioning between the two photosystems in leaves of plants with different functional types. [PDF]
Photosynth Res, 2019 Cyclic electron flow (CEF) around photosystem I (PSI) is essential for generating additional ATP and enhancing efficient photosynthesis. Accurate estimation of CEF requires knowledge of the fractions of absorbed light by PSI (fI) and PSII (fII), which ...
Sagun JV +3 more
europepmc +2 more sources
Structure of a PSI-LHCI-cyt b6f supercomplex in Chlamydomonas reinhardtii promoting cyclic electron flow under anaerobic conditions. [PDF]
Proc Natl Acad Sci U S A, 2018 Significance To optimize photosynthetic performance and minimize photooxidative damage, photosynthetic organisms evolved to efficiently balance light energy absorption and electron transport with cellular energy requirements under constantly changing ...
Steinbeck J +13 more
europepmc +2 more sources
Cyclic Electron Flow in Cyanobacteria and Eukaryotic Algae
, 2017 In oxygenic photosynthesis light energy is largely captured in linear electron flow (LEF) between the photosystems and drives ATP formation via a thylakoid proton-driven ATP synthase. In addition, for over 50 years there has been good evidence that an additional cyclic electron flow (CEF) around photosystem I (PSI) is harnessed to provide extra ATP in ...
Larkum, A. W.D. +3 more
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Sustained diurnal stimulation of cyclic electron flow in two tropical tree species Erythrophleum guineense and Khaya ivorensis [PDF]
Frontiers in Plant Science, 2016 The photosystem II (PSII) activity of C3 plants is usually inhibited at noon associated with high light but can be repaired fast in the afternoon. However, the diurnal variation of photosystem I (PSI) activity is unknown.
Wei Huang +4 more
doaj +2 more sources
PGRL1 Is the Elusive Ferredoxin-Plastoquinone Reductase in Photosynthetic Cyclic Electron Flow [PDF]
Molecular Cell, 2013 During plant photosynthesis, photosystems I (PSI) and II (PSII), located in the thylakoid membranes of the chloroplast, use light energy to mobilize electron transport. Different modes of electron flow exist. Linear electron flow is driven by both photosystems and generates ATP and NADPH, whereas cyclic electron flow (CEF) is driven by PSI alone and ...
A. P. Hertle +6 more
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