Editors' ChoicePlant biology

Making the Most of the Light

Science's STKE  11 Mar 2003:
Vol. 2003, Issue 173, pp. tw103-TW103
DOI: 10.1126/stke.2003.173.tw103

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]