2012 Fiscal Year Final Research Report
Molecular mechanisms for cadmium translocation in rice
| 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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| Keywords | 植物分子育種 |
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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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[Journal Article] 、OsHMA3, a P1B -type of ATPase affects root-to-shoot cadmium translocation in rice by mediating efflux into vacuoles2011
Author(s)
Miyadate H., Adachi S., Hiraizumi A., Tezuka K., Nakazawa N., Kawamoto T., Katou K., Kodama I., Sakurai K., Takahashi H., Satoh N., Watanabe A., Fujimura T., Akagi H.
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Journal Title
New Phytologis
Volume: 189
Pages: 190-199
Peer Reviewed
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[Journal Article] Isolation of novel types of Arabidopsis mutants with altered re actions to cadmium: cadmium-gradient agar plates are an effective screen for the heavy metal-related mutants2011
Author(s)
Watanabe A, Ito H, Chiba M, Ito A, Shimizu H, Fuji S, Nakamura S, Hattori H, Chino M, Satoh N, Takahashi H, Sakurai K, Akagi H
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Journal Title
Planta
Volume: 232
Pages: 825-836
Peer Reviewed
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[Journal Article] A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku2010
Author(s)
Tezuka K., Miyadate H., Kato K., Kodama I., Matsumoto S., Kawamoto T., Masaki S., Satoh H., Yamaguchi M., Sakurai K., Takahashi H., Satoh N., Watanabe A., Fujimura T., Akagi H.
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Journal Title
Theoretical and Applied Genetics
Volume: 120
Pages: 1175-1182
Peer Reviewed
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