PGR5 is involved in cyclic electron flow around photosystem I and is essential for photoprotection in Arabidopsis.

By Y. Munekage, Masaya Hojo, J. Meurer, T. Endo, M. Tasaka, T. Shikanai. Cell, 2002

986 citations recorded by the source corpus.

Subfields: Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/2d7e231c9a832916d883e4b000cccb002807e483

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Citations in the corpus

Structure and function of photosystems I and II. (2006, background): “simultaneous cyclic and linear electron transport reactions was questioned, even after one component of the cyclic electron flow pathway was characterized (216).”
Down-regulation of linear and activation of cyclic electron transport during drought (2003, background): “Recently, an NPQ mutant has been identified that appears to be deficient in cyclic electron transport (Munekage et al. 2002).”
Physiology and molecular biology of stress tolerance in plants (2006, background): “One is through stromal NADPH and plastoquinone (Shikanai et al., 1998a) while another is through ferredoxin and plastoquinone (Munekage et al., 2002).”
Plant drought stress: effects, mechanisms and management (2011, positive): “Support for this model came from the isolation of a mutant deﬁcient in high-energy-statequenching that lacked cyclic electron transport (Munekage et al., 2002).”
Photosynthetic efficiency in sun and shade plants (2018, background): “…was subsequently identified as an amino acid substitution in a previously unknown chloroplast protein of low molecular mass, named PGR5, which was suggested to have a role as a mediator of antimycin-A sensitive cyclic electron flow (CET) around PSI (Munekage et al. 2002, Sugimoto et al. 2013).”
A photosynthetic strategy for coping in a high‐light, low‐nutrient environment (2008, background): “Furthermore, it would allow the cell to maintain favorable ATP : nicotinamide adenosine dinucleotide phosphate ratios, a photoprotective role filled by PSI in plants (Munekage et al. 2002, 2004).”
Thylakoid membrane responses to moderately high leaf temperature in Pima cotton (2004, background): “One obvious source is NADPH donation to NDH (Nixon 2000; Peltier & Cournac 2002) but donation of electrons from ferredoxin to FQR (Peltier & Cournac 2002; Munekage et al. 2002 ) probably would also lower the stromal redox potential.”
Cyclic electron flow around photosystem I is essential for photosynthesis (2004, background): “An Arabidopsis mutant, pgr5 ( proton gradient regulation ), was identified by its high chlorophyll fluorescence due to a reduced level of thermal dissipatio”
The complex architecture of oxygenic photosynthesis (2004, background): “In addition to allowing the synthesis of the necessary ATP, the ΔpH that is formed by cyclic phosphorylation might have an important role in protection against the possible damages of high light intensities that exceed the capacity of the reaction centre”
Integrating the proton circuit into photosynthesis: progress and challenges (2005, background): “A very interesting mutant of A. thaliana was recently described by Munekage et al. (Munekage et al. 2002, 2004) which can be used to test the integrated model (above).”