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Non-photochemical fluorescence quenching in Chromera velia is enabled by fast violaxanthin de-epoxidation
- 1.0362742 - MBÚ 2012 RIV GB eng J - Journal Article
Kotabová, Eva - Kaňa, Radek - Jarešová, Jana - Prášil, Ondřej
Non-photochemical fluorescence quenching in Chromera velia is enabled by fast violaxanthin de-epoxidation.
FEBS Letters. Roč. 585, č. 12 (2011), 1941-1945. ISSN 0014-5793. E-ISSN 1873-3468
R&D Projects: GA AV ČR IAA601410907; GA ČR GP206/09/P094
Institutional research plan: CEZ:AV0Z50200510
Keywords : Non-photochemical fluorescence quenching * Light-harvesting * Violaxanthin
Subject RIV: EE - Microbiology, Virology
Impact factor: 3.538, year: 2011
We analyzed a unique non-photochemical quenching (NPQ) mechanism in the alga Chromera velia, a recently discovered close relative of apicomplexan parasites. NPQ in C. velia is enabled by an operative and fast violaxanthin de-epoxidation to zeaxanthin without accumulation of antheraxanthin. In C. velia violaxanthin also serves as a main light-harvesting pigment. Therefore, in C. velia violaxanthin acts as a key factor in both light harvesting and photoprotection. This is in contrast to a similar alga, Nannochloropsis limnetica, where violaxanthin has only light-harvesting function
Permanent Link: http://hdl.handle.net/11104/0198980
Number of the records: 1