Article
Light-induced dissociation of an antenna hetero-oligomer is needed for non-photochemical quenching induction.
The Journal of biological chemistry - 29 May 2009
Betterle Nico, Ballottari Matteo, Zorzan Simone, de Bianchi Silvia, Cazzaniga Stefano, Dall'osto Luca, Morosinotto Tomas, Bassi Roberto
Abstract excerpt
PsbS plays a major role in activating the photoprotection mechanism known as "non-photochemical quenching," which dissipates chlorophyll excited states exceeding the capacity for photosynthetic electron transport. PsbS activity is known to be triggered by low lumenal pH. However, the molecular mechanism by which this subunit regulates light harvesting efficiency is still unknown. Here we show that PsbS controls...
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