Analysis of pathways of gravity-sensing and gravity-signaling in plants
Project/Area Number |
24620002
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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 |
宇宙生命学
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Research Institution | Tohoku University |
Principal Investigator |
FUJII NOBUHARU 東北大学, 生命科学研究科, 准教授 (70272002)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | 植物 / 重力感受 / アミロプラスト / 国際宇宙ステーション (ISS) / 微小重力 / 過重力 / 環境応答 / シロイヌナズナ / オーキシン排出キャリア |
Outline of Final Research Achievements |
Sensing of gravity in plants is composed of amyloplast sedimentation (PGM pathway) and ARG1 pathway. However, a gravity-sensing molecule that converts gravistimulation into intracellular signals has not been identified. In this study, we found that gravity-responses in arg1 pgm double mutants could be detected under the hypergravity condition that was created by a low-speed centrifuge. Therefore, we screened M2 seedlings of arg1 pgm double mutants that were mutagenized with EMS, and isolated 4 lines of enhancer of arg1 pgm mutants that exhibited less gravity-responses than arg1 pgm mutants did. Hereafter, we expect that analysis of these mutants will allow us to obtain a new insight of how plants sense gravity.
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Report
(4 results)
Research Products
(9 results)
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[Presentation] Graviresponse Induces Re-Localization of an Auxin Efflux Carrier, CsPIN1, during Gravimorphogenesis of Cucumber Seedlings2013
Author(s)
Nobuharu Fujii, Chiaki Yamazaki, Yutaka Miyazawa, Motoshi Kamada, Haruo Kasahara, Ikuko Osada, Toru Shimazu, Yasuo Fusejima, Akira Higashibata, Takashi Yamazaki, Noriaki Ishioka, Hideyuki Takahashi
Organizer
34th Annual Meeting International Gravitational Physiology
Place of Presentation
Toyohashi
Related Report
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