Article
Regulation of photosystem I light harvesting by zeaxanthin.
Proceedings of the National Academy of Sciences of the United States of America - 10 Jun 2014
Ballottari Matteo, Alcocer Marcelo J P, D'Andrea Cosimo, Viola Daniele, Ahn Tae Kyu, Petrozza Annamaria, Polli Dario, Fleming Graham R, Cerullo Giulio, Bassi Roberto
Abstract excerpt
In oxygenic photosynthetic eukaryotes, the hydroxylated carotenoid zeaxanthin is produced from preexisting violaxanthin upon exposure to excess light conditions. Zeaxanthin binding to components of the photosystem II (PSII) antenna system has been investigated thoroughly and shown to help in the dissipation of excess chlorophyll-excited states and scavenging of oxygen radicals. However, the functional...
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