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PMID: 12605303 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Review

The phototropin family as photoreceptors for blue light-induced chloroplast relocation.

Journal of plant research ·Vol. 116 ·No. 1 ·2003-02-00 ·Pages 77-82

Kagawa T

Abstract

Blue light-induced chloroplast accumulation and avoidance relocation movements are controlled by the blue light photoreceptor phototropin. The Arabidopsis thaliana genome has two phototropin genes encoding phot1 and phot2. Each of these photoreceptors contains two LOV (light oxygen and voltage) domains and a kinase domain. The LOV domains absorb blue light though an associated flavin mononucleotide chromophore, while the kinase domain is thought to be associated with signal transduction. The phototropins control not only chloroplast relocation movement, but also blue light-induced phototropic responses, leaf expansion and stomatal opening. Here I review the role of phototropin as a photoreceptor for chloroplast photorelocation movement.

MeSH Terms
Amino Acid Sequence Biological Transport/physiology,radiation effects Chloroplasts/physiology,radiation effects Cryptochromes Drosophila Proteins Eye Proteins Flavoproteins/genetics,metabolism,physiology Light Molecular Sequence Data Oxygen/metabolism Photoreceptor Cells, Invertebrate Phototropism/physiology Phylogeny Phytochrome/metabolism Protein Serine-Threonine Kinases/metabolism Receptors, G-Protein-Coupled Sequence Homology, Amino Acid Signal Transduction/physiology,radiation effects
Chemicals
Cryptochromes Drosophila Proteins Eye Proteins Flavoproteins Receptors, G-Protein-Coupled cry protein, Drosophila Phytochrome Protein Serine-Threonine Kinases Oxygen
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Kagawa Takatoshi
Division of Biological Regulation and Photobiology, National Institute for Basic Biology, 38 Nishigonaka, Myoudaiji-cho, Okazaki 444-8585, Japan. kagawa@nibb.ac.jp
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Article Info
Journal
Journal of plant research
Abbr.
J Plant Res
ISSN
0918-9440
DOI
10.1007/s10265-002-0072-4
Email
kagawa@nibb.ac.jp
Published
2003-02-00
Epub
2002-00-21
Pages
77-82
Language
English
Region
Japan
NLM ID
9887853
Subset
IM
External Links
PubMed source DOI: 10.1007/s10265-002-0072-4 View journal details
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