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Biochim Biophys Acta. 2011 Aug;1807(8):897-905. doi: 10.1016/j.bbabio.2010.11.005. Epub 2010 Nov 23.

State transitions--the molecular remodeling of photosynthetic supercomplexes that controls energy flow in the chloroplast.

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  • 1Nattional Institute for Basic Biology, Okazaki, Japan. minagawa@nibb.ac.jp

Abstract

In oxygen-evolving photosynthesis, the two photosystems-photosystem I and photosystem II-function in parallel, and their excitation levels must be balanced to maintain an optimal photosynthetic rate under natural light conditions. State transitions in photosynthetic organisms balance the absorbed light energy between the two photosystems in a short time by relocating light-harvesting complex II proteins. For over a decade, the understanding of the physiological consequences, the molecular mechanism, and its regulation has increased considerably. After providing an overview of the general understanding of state transitions, this review focuses on the recent advances of the molecular aspects of state transitions with a particular emphasis on the studies using the green alga Chlamydomonas reinhardtii. This article is part of a Special Issue entitled: Regulation of Electron Transport in Chloroplasts.

Copyright © 2010 Elsevier B.V. All rights reserved.

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