NTRC Effects on Non-Photochemical Quenching Depends on PGR5 [PDF]
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 ...
Jan‐Ferdinand Penzler +2 more
exaly +6 more sources
The Physiological Functionality of PGR5/PGRL1-Dependent Cyclic Electron Transport in Sustaining Photosynthesis [PDF]
Frontiers in Plant Science, 2021 The cyclic electron transport (CET), after the linear electron transport (LET), is another important electron transport pathway during the light reactions of photosynthesis.
Yifei Liu, Xiaori Han, Jean W H Yong
exaly +9 more sources
Dysfunction of Chloroplast Protease Activity Mitigates pgr5 Phenotype in the Green Algae Chlamydomonas reinhardtii [PDF]
PlantsResearchers have described protection mechanisms against the photoinhibition of photosystems under strong-light stress. Cyclic Electron Flow (CEF) mitigates electron acceptor-side limitation, and thus contributes to Photosystem I (PSI) protection ...
Shin-Ichiro Ozawa +2 more
doaj +5 more sources
Evidence that cyanobacterial Sll1217 functions analogously to PGRL1 in enhancing PGR5-dependent cyclic electron flow [PDF]
Nature Communications, 2019 In Arabidopsis, PGR5 and PGRL1 heterodimers enable cyclic electron flow to safeguard photosystem I during high light intensity. Here, the authors provide evidence that cyanobacteria, while lacking an obvious PGRL1 homologue, use an analogous PGRL1-like ...
Dario Leister, Marcel Dann
exaly +6 more sources
Identification of a Novel Mutation Exacerbated the PSI Photoinhibition in pgr5/pgrl1 Mutants; Caution for Overestimation of the Phenotypes in Arabidopsis pgr5-1 Mutant [PDF]
Cells, 2021 PSI photoinhibition is usually avoided through P700 oxidation. Without this protective mechanism, excess light represents a potentially lethal threat to plants.
Shinya Wada +2 more
doaj +4 more sources
PGRL2 triggers degradation of PGR5 in the absence of PGRL1 [PDF]
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 ...
Tatjana Kleine +2 more
exaly +4 more sources
Autophagy Induced Accumulation of Lipids in pgrl1 and pgr5 of Chlamydomonas reinhardtii Under High Light [PDF]
Frontiers in Plant Science, 2022 Chlamydomonas (C.) reinhardtii is a potential microalga for lipid production. Autophagy-triggered lipid metabolism in microalgae has not being studied so far from a mutant of proton gradient regulation 1 like (PGRL1) and proton gradient regulation 5 ...
Nisha Chouhan +3 more
doaj +4 more sources
Proton motive force partitioning links energy and redox balance to photoprotection and carbon gain [PDF]
Frontiers in Plant ScienceFluctuating irradiance forces leaves to balance energy conversion with protection against reactive oxygen species (ROS) produced when light harvesting exceeds metabolic demand.
Fardad Didaran +4 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
doaj +2 more sources
Drought Has a Greater Negative Effect on the Growth of the C3 Chenopodium quinoa Crop Halophyte than Elevated CO2 and/or High Temperature [PDF]
PlantsPlant growth and productivity are predicted to be affected by rising CO2 concentrations, drought and temperature stress. The C3 crop model in a changing climate is Chenopodium quinoa Willd—a protein-rich pseudohalphyte (Amaranthaceae ...
Zulfira Rakhmankulova +6 more
doaj +2 more sources