2014 Fiscal Year Final Research Report
Analyses on photoregulation of the cell cycle and mechanisms of cell division in plants
| Project/Area Number |
24570048
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KOHCHI Takayuki 京都大学, 大学院生命科学研究科, 教授 (40202056)
ISHIZAKI Kimitsune 神戸大学, 大学院理学研究科, 准教授 (00452293)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 細胞分裂 / 細胞周期 / 環境応答 / 光シグナリング |
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| Outline of Final Research Achievements |
In plants, light plays critical roles in processes that accompany with cell proliferation, such as organogenesis and regeneration. For the liverwort Marchantia polymorpha, a bryophyte, red light promotes cell proliferation. This research project revealed that red light regulates different steps of expression of a gene that regulates S-phase entry by signaling via photosynthesis and the red-light receptor phytochrome, and that the phytochrome also promotes isotropic cell growth.
Functional analysis on the microtubule-based motor protein that is localized to the cell plate suggested that the protein may play a role in the transport of membrane vesicles for cell-plate formation. As this gene was found to be essential, a vector and a protocol for obtaining conditional knockout mutants were created.
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| Free Research Field |
植物細胞分子遺伝学
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