Analyses on the functions of chloroplast actin filaments
| Project/Area Number |
22570047
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
KADOTA Akeo 首都大学東京, 大学院・理工学研究科, 教授 (60152758)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 環境応答 / 光運動反応 / 葉緑体運動 / アクチンフィラメント / フォトトロピン / ヒメツリガネゴケ / ゼニゴケ / ホウライシダ / GFP |
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| Research Abstract |
Chloroplasts relocate in the cell in response to environmental light condition. The chloroplast photorelocation response is generally mediated by the blue light receptor, phototropin. We have been shown in Arabidopsis cells that the chloroplast movement utilizes short chloroplast actin filaments (cp-actin filaments), which are different from cytoplasmic actin filaments and unique to chloroplast. In this work, we showed that the novel cp-actin filaments-mediated movement mechanism of chloroplasts are also found in cells of liverwort and moss which are considered to be the first land plants and evolutionally distant from Arabidopsis. In liverwort and moss cells, chloroplast photorelocation are also regulated by receptors other than phototropin, cp-actin dynamics are analyzed in these responses.
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Report
(4 results)
Research Products
(28 results)
