Journal
PLANT JOURNAL
Volume 82, Issue 3, Pages 449-465Publisher
WILEY
DOI: 10.1111/tpj.12825
Keywords
Chlamydomonas reinhardtii; non-photochemical quenching; photoinhibition; photoprotection; photosynthesis; reactive oxygen species; singlet oxygen
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Funding
- U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [449B]
- Howard Hughes Medical Institute
- Gordon and Betty Moore Foundation [GBMF3070]
- National Science Foundation
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Plants and algae require light for photosynthesis, but absorption of too much light can lead to photo-oxidative damage to the photosynthetic apparatus and sustained decreases in the efficiency and rate of photosynthesis (photoinhibition). Light stress can adversely affect growth and viability, necessitating that photosynthetic organisms acclimate to different environmental conditions in order to alleviate the detrimental effects of excess light. The model unicellular green alga, Chlamydomonas reinhardtii, employs diverse strategies of regulation and photoprotection to avoid, minimize, and repair photo-oxidative damage in stressful light conditions, allowing for acclimation to different and changing environments. Significance Statement This review summarizes the mechanisms used by the model photosynthetic eukaryote Chlamydomonas reinhardtii to avoid, minimize, and repair photo-oxidative damage and to acclimate to singlet oxygen and excess light stress.
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