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The thioredoxin system protects PSI from photoinhibition in coordination with PSI cyclic electron transport under fluctuating light conditions.

Plant & cell physiology - 30 Jun 2026

Okegawa Yuki, Sakamoto Wataru

Abstract excerpt

Under natural growth conditions, plants are constantly exposed to changes in light intensity. PROTON GRADIENT REGULATION 5 (PGR5)-dependent photosystem I cyclic electron transport (PSI-CET) is known to be required to protect PSI from photoinhibition during such fluctuating light. Moreover, the Arabidopsis thaliana (Arabidopsis) pgr5 mutant cannot survive under fluctuating light conditions due to severe PSI...

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Identifiers

PMID: 41432238
DOI: 10.1093/pcp/pcaf172
PMCID: PMC13317958

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The thioredoxin system protects PSI from photoinhibition in coordination with PSI cyclic electron transport under fluctuating light conditions.PMID 41432238Read ↗

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Thioredoxins Play a Crucial Role in Dynamic Acclimation of Photosynthesis in Fluctuating Light.Semantic proximity Read ↗

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