Analysis of Signaling Mechanism of Rice Phytochrome B Molecule
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- Yamauchi Yukika
- National Institute of Agrobiological Sciences (NIAS)
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- Matsushita Tomonao
- Dept. of Botany, Graduate School of Science, Kyoto Univ.
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- Oka Yoshito
- Dept. of Botany, Graduate School of Science, Kyoto Univ.
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- Nagatani Akira
- Dept. of Botany, Graduate School of Science, Kyoto Univ.
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- Izawa Takeshi
- National Institute of Agrobiological Sciences (NIAS)
Bibliographic Information
- Other Title
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- イネフィトクロムB分子のシグナル伝達機構の解析
Abstract
Phytochromes regulate various physiological light responses in plants. In Arabidopsis thaliana, the over-expression of N-terminal domain of phytochrome B linked to GFP-GUS, rescued some phyB phenotypes. To reveal the function of rice phyB molecule, transgenic rice (phyB-2) plants over-expressing OsPhyBN450 and OsPhyBN651, fused to the GFP-GUS, were examined. Rice phyB mutant showed some altered photomorphogenesis such as longer coleoptile and pale colored first leaf under red light, and increased angle of second leaf blade under blue light. Under red light, those phenotypes were partially rescued by over-expression of OsPhyBN651, but not by OsPhyBN450. Under blue light, plants with OsPhyBN450 exhibited a similar phenotype to the wild type while plants with OsPhyBN651 exhibited a drastically stronger phenotype than wild type. These results indicate that the signaling mechanism of rice phyB molecule differs from that of A. thaliana , and distinct phyB domains may be required for various physiological responses in rice.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2007 (0), 239-239, 2007
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390282680609207040
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- NII Article ID
- 130006994221
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed