Understanding the mechanism of gravity resistance in plants: Roles of actin filaments in regulation of cell shape
Project/Area Number |
25514005
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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 | Osaka City University |
Principal Investigator |
SOGA Kouichi 大阪市立大学, 大学院理学研究科, 准教授 (00336760)
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Co-Investigator(Renkei-kenkyūsha) |
HOSON Takayuki 大阪市立大学, 大学院理学研究科, 教授 (70135771)
WAKABAYASHI Kazuyuki 大阪市立大学, 大学院理学研究科, 准教授 (10220831)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 抗重力反応 / 過重力 / アクチン繊維 / 表層微小管 |
Outline of Final Research Achievements |
Elongation growth was inhibited and lateral expansion was promoted by increasing the gravitational force in the epidermal cells of azuki bean epicotyls and Arabidopsis hypocotyls. Hypergravity modified the angles between filaments in radially distributed actin filaments of both seedlings. Also, the percentage of cells with thick actin filaments was increased under hypergravity conditions. When actin filaments were disrupted, effects of hypergravity on the modification of cell shape were reduced. Thus, changes in the dynamics of actin filaments may be involved in the regulation by gravity of growth anisotropy of shoot organs.
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] Growth stimulation in inflorescences of an Arabidopsis tubulin mutant under microgravity conditions in space2013
Author(s)
Hoson T, Soga K, Kazuyuki W, Takahashi H, Karahara I, Yano S, Tanigaki F, Shimazu T, Kasahara H, Masuda D, Kamisaka S
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Journal Title
Plant Biology
Volume: 16
Issue: s1
Pages: 91-96
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Understanding the mechanism of gravity resistance in plants by the Resist Tubule space experiment2013
Author(s)
Hoson T, Kato S, Murakami M, Soga K, Wakabayashi K, Hashimoto H, Yamashita M, Hasegawa K, Higashibata A, Yano S, Matsumoto S, Kasahara H, Osada I, Kamada M, Shimazu T, Muranaka T, Hashimoto T.
Organizer
34th Annual International Gravitational Physiology Meeting
Place of Presentation
Honokuni Toyohashi Art Center (Toyohashi)
Related Report
Invited
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