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Zeaxanthin and Echinenone Protect the Repair of Photosystem II from Inhibition by Singlet Oxygen in Synechocystis sp. PCC 6803.

Plant & cell physiology - 1 May 2015

Kusama Yuri, Inoue Shuhei, Jimbo Haruhiko, Takaichi Shinichi, Sonoike Kintake, Hihara Yukako, Nishiyama Yoshitaka

Abstract excerpt

Carotenoids are important components of antioxidative systems in photosynthetic organisms. We investigated the roles of zeaxanthin and echinenone in the protection of PSII from photoinhibition in Synechocystis sp. PCC 6803, using mutants of the cyanobacterium that lack these carotenoids. The activity of PSII in mutant cells deficient in either zeaxanthin or echinenone was more sensitive to strong light than the...

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Identifiers

PMID: 25663484
DOI: 10.1093/pcp/pcv018

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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