期刊
PLANT AND CELL PHYSIOLOGY
卷 43, 期 4, 页码 367-371出版社
OXFORD UNIV PRESS
DOI: 10.1093/pcp/pcf049
关键词
avoidance and accumulation movement; Adiantum capillus-veneris; Arabidopsis thaliana; fern; photoreceptors; phototropin
Chloroplast relocation movement is induced by blue light in most plants tested. Under weak light, chloroplasts move toward a brighter area in a cell (called low-fluence-rate response or accumulation movement), but they avoid strong light and move away from the light (called high-fluence-rate response or avoidance movement). Recently, mutants deficient in the chloroplast avoidance movement were isolated from Arabidopsis thaliana. The results of mutant analyses revealed that the phototropin photoreceptors phot1 and phot2 both control chloroplast accumulation while phot2 alone controls the avoidance movements.
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