Abstract
Plants optimize their photosynthetic processes in response to changing light quality through the state transition, which is mediated by alterations in the phosphorylation state of the light-harvesting complex. Depège et al. (see the Perspective by Allen) have now identified the kinase responsible for this regulatory phosphorylation step in Chlamydomonas . The nuclear gene encodes a protein that resides in the chloroplast thylakoids, and homologs were found in other plant genomes. N. Depège, S. Bellafiore, J.-D. Rochaix, Role of chloroplast protein kinase Stt7 in LHCII phosphorylation and state transition in Chlamydomonas . Science 299 , 1572-1575 (2003). [Abstract] [Full Text] J. F. Allen, State transitions--a question of balance. Science 299 , 1530-1532 (2003). [Summary] [Full Text]
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