Journal Article

Blue Light-Induced Chloroplast Relocation

Takatoshi Kagawa and Masamitsu Wada

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 43, issue 4, pages 367-371
Published in print April 2002 | ISSN: 0032-0781
Published online April 2002 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcf049
Blue Light-Induced Chloroplast Relocation

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  • Biochemistry
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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.

Keywords: Key words: Avoidance and accumulation movement — Adiantum capillus-veneris — Arabidopsis thaliana — Fern — Photoreceptors — Phototropin.; Abbreviations: B, blue light; HFR, high-fluence-rate response; LFR, low-fluence-rate response; R, red light.

Journal Article.  3082 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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