Role of chloroplast protein kinase Stt7 in LHCII phosphorylation and state transition in Chlamydomonas

被引:406
作者
Depège, N
Bellafiore, S
Rochaix, JD
机构
[1] Univ Geneva, Dept Mol Biol, CH-1211 Geneva 4, Switzerland
[2] Univ Geneva, Dept Plant Biol, CH-1211 Geneva 4, Switzerland
关键词
D O I
10.1126/science.1081397
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Photosynthetic organisms adapt to changes in light quality by redistributing light excitation energy between two photosystems through state transition. This reorganization of antenna systems leads to an enhanced photosynthetic yield. Using a genetic approach in Chlamydomonas reinhardtii to dissect the signal transduction pathway of state transition, we identified a chloroplast thylakoid-associated serine-threonine protein kinase, Stt7, that has homologs in land plants. Stt7 is required for the phosphorylation of the major light-harvesting protein (LHCII) and for state transition.
引用
收藏
页码:1572 / 1575
页数:6
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