LIGHT-REGULATED TRANSLATION OF CHLOROPLAST MESSENGER-RNAS THROUGH REDOX POTENTIAL

被引:276
作者
DANON, A [1 ]
MAYFIELD, SP [1 ]
机构
[1] Scripps Res Inst, DEPT CELL BIOL, DIV PLANT BIOL, LA JOLLA, CA 92037 USA
关键词
D O I
10.1126/science.7992056
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
Translation of key proteins in the chloroplast is regulated by light. Genetic and biochemical studies in the unicellular alga Chlamydomonas reinhardtii suggest that light may regulate translation by modulating the binding of activator proteins to the 5' untranslated region of chloroplast messenger RNAs. in vitro binding of the activator proteins to psbA messenger RNA and in vivo translation of psbA messenger RNA is regulated by the redox state of these proteins, suggesting that the light stimulus is transduced by the photosynthesis-generated redox potential.
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页码:1717 / 1719
页数:3
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