Aug 9, 2002 · PGR5 encodes a novel thylakoid membrane protein that is involved in the transfer of electrons from ferredoxin to plastoquinone. This alternative electron transfer pathway, whose molecular identity has long been unclear, is known to function in …

Aug 9, 2002 · PGR5 encodes a novel thylakoid membrane protein that is involved in the transfer of electrons from ferredoxin to plastoquinone. This alternative electron transfer pathway, whose molecular identity has long been unclear, is known to function in …

Mar 4, 2021 · PGR5 is a small and mobile protein that functions when attached to protein complexes. In this study, the function of PGR5 was found to be partially related to the state transition.

Jun 24, 2021 · In the absence of both PGRL1 and PGRL2, PGR5 alters thylakoid electron flow and impairs plant growth. Consequently, PGR5 can operate in CEF on its own, and is the target of the CEF inhibitor...

Jan 25, 2008 · Our results indicate that PGRL1 and PGR5 interact both functionally and physically: the pgrl1ab and pgr5 mutants show very similar growth behaviors (data not shown) and photosynthetic phenotypes; PGRL1 and PGR5 interact in yeast and copurify in PSI preparations; and accumulation of the peripheral PGR5 …

PGR5-dependent CET protects PSI from photodamage under fluctuating light via the regulation of electron transport at both donor and acceptor sides of PSI.

Mar 4, 2021 · In plants and algae, PGR5-dependent cyclic electron flow (CEF) is an important regulator of acclimation to fluctuating environments, but how PGR5 participates in CEF is unclear. In this work, we analyzed two PGR5s in cucumber (Cucumis sativus L.) under different conditions and found that CsPGR5a played the dominant role in PGR5-dependent CEF.

We showed that PROTON GRADIENT REGULATION5 (PGR5)–dependent regulation of electron transfer and proton motive force is crucial for protection of PSI against photodamage, which occurred particularly during the high light phases of fluctuating light cycles.

Feb 1, 2016 · Their analysis revealed that PGR5-PGRL1-mediated CET plays a major role in ΔpH formation and induction of NPQ in C3 plants. Moreover, while pgr5 dies at the seedling stage under fluctuating light conditions, Δ5 pgr5 plants are able to survive, which underlines the importance of PGR5 in modulating the intersystem electron transfer.

Jul 7, 2020 · Results of electrochromic shift analysis show that proton conductivity across the thylakoid membrane (gH+) in the pgr5 mutant is enhanced at high light intensity. Given this observation, PGR5 was proposed to regulate ATP synthase activity rather than mediating CET.