Studies on tip specific blue light perception and IAA biosynthesis/transport in maize coleoptiles
Project/Area Number |
15K07111
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Plant molecular biology/Plant physiology
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Research Institution | Tokyo Metropolitan University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
OKAMOTO takashi
YOKAWA ken
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Research Collaborator |
SUZUKI hiromi
BALUSKA Frantisek
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Project Period (FY) |
2015-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 植物生理学 / 植物ホルモン / 植物環境応答 / 幼葉鞘の光屈曲 / 根の光・重量応答 / 根系分化・成長 / 根の光・重力応答 |
Outline of Final Research Achievements |
We have obtained several results as followers. (1)Blue light specific site (cells) in maize coleoptiles are suggested to be outer cell layers of coleoptile regions, which are indicated IAA synthesis regions as previous studies. (2) Movement of starch grains in the root tip cells are suggested to be regulate light irradiation, and necessary in light-dependent root gravitropism. (3) Ser291 in Zmphot1 was identified as a low-fluence blue light-induced phosphorylation site that is crucial for the first positive phototropism. (4) RSOsPR10 expression in rice root tips are regulated by cross-talk of plant hormones, such as jasmonate, salicylic acid and maybe IAA. Main results of these studies have been published in international journals.
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Academic Significance and Societal Importance of the Research Achievements |
植物の光屈性の分子レベルの機構に関して新たな知見を得ることができた。一部は、まだ論文投稿中の内容があるが、当初の目標を十分に達成した。今後の世界的な研究の進展に大きく貢献するものである。
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Report
(5 results)
Research Products
(21 results)
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[Journal Article] Expression of RSOsPR10 in rice roots is antagonistically regulated by jasmonate/ethylene and salicylic acid via the activator OsERF87 and the repressor OsWRKY76, respectively2018
Author(s)
Yamamoto, T., Yoshida, Y., Nakajima, K., Tominaga, M., Gyohda, A., Suzuki, H., Okamoto, T., Nishimura, T., Yokotani, N., Minami, E., Nishizawa, Y., Miyamoto, K., Yamane, H., Okada, K., Koshib, T.
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Journal Title
Plant Direct
Volume: 3
Issue: 3
Pages: 1-17
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Overexpression of RSOsPR10, a root-specific rice PR10 gene, confers tolerance against drought stress in rice and drought and salt stresses in bentgrass.2016
Author(s)
Takeuchi, K., Hasegawa, H., Gyohda, A., Komatsu, S., Okamoto, T., Okada, K., Terakawa, T., Koshiba, T.
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Journal Title
Plant Cell Tissue Organ Cult.
Volume: 127
Issue: 1
Pages: 35-46
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Identification of Arabidopsis thaliana NRT1/PTR FAMILY (NPF) proteins capable of transporting plant hormones.2015
Author(s)
Chiba, Y., Shimizu, T., Miyakawa, S., Kanno, Y., Koshiba, T., Kamiya, Y., Seo, M.
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Journal Title
J Plant Res
Volume: 128
Issue: 4
Pages: 679-686
DOI
Related Report
Peer Reviewed
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[Presentation] Zmphot1 functions according to the extent of its fluence-dependent phosphorylation2018
Author(s)
Suzuki , H., Koshiba, T., Fujita, C., Yamauchi, Y., Kimura, T., Isobe, T., Sakai, T., Taoka, M., Okamoto, T.
Organizer
第59回日本植物生理学会年会
Related Report
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[Presentation] Identification of Arabidopsis SWEET proteins capable of transporting gibberellins2018
Author(s)
Kanno, Y., Oikawa, T., Chiba, Y., Ishimaru, Y., Shimizu, T., Sano, N., Koshiba, T., Kamiya, K., Seo, M.
Organizer
第59回日本植物生理学会年会
Related Report
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[Presentation] Identification of plant hormone transporters by a new approach.2015
Author(s)
Kanno,Y., Shimizu,T., Chiba,Y., Miyakawa,S., Sano,N., Koshiba,T., Kamiya,Y., Seo,M.
Organizer
International Conference on Arabidopsis Research
Place of Presentation
Paris, France
Year and Date
2015-07-05
Related Report
Int'l Joint Research
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