| Project/Area Number |
22580008
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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 |
Breeding science
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| Research Institution | Akita Prefectural University |
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Principal Investigator |
AKAGI Hiromori 秋田県立大学, 生物資源科学部, 教授 (50315587)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Akio 秋田県立大学, 生物資源科学部, 准教授 (50325940)
NAKAZAWA Nobushige 秋田県立大学, 生物資源科学部, 教授 (40315586)
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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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 植物分子育種 / イネ / カドミウム / ファイトレメディエーション / 膜輸送体 / OsHMA3 |
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| Research Abstract |
In rice, cadmium (Cd) taken up in the cytoplasm of root cells is sequestrated into the vacuole of the cells via OsHMA3, then loading to the xylem and translocation to shoots of Cd are limited. By contrast, in Cd over-accumulating rice, Cd remains at a higher concentration in the cytoplasm due to the lack of OsHMA3 function, and is available for loading to the xylem. This vacuole sequestrating by OsHMA3 is a key for over-accumulation of Cd in rice shoots. And we also demonstrated that the overexpression of OsHMA3 allows control distribution of Cd in plants.
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