Identification and application of genes involved in accumulation of toxic elements in rice
| Project/Area Number |
24248014
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Okayama University |
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Principal Investigator |
MA Jian Feng 岡山大学, その他部局等, 教授 (80260389)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAJI Naoki 岡山大学, 資源植物科学研究所, 助教授 (00444646)
MITANI Namiki 岡山大学, 資源植物科学研究所, 助教 (40581020)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2014: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2013: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2012: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
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| Keywords | カドミウム / ヒ素 / イネ / トランスポーター / 輸送体 / 品種間差 |
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| Outline of Final Research Achievements |
We identified novel genes involved in accumulation of cadmium (Cd) and arsenic (As) in rice. We found that OsNramp5 is a major transporter for Cd uptake in rice. OsNramp5 is polarly localized at the distal side of root exodermis and endodermis. Over-expression of OsHMA3, a tonoplast-localized Cd transporter, resulted in enhanced tolerance to Cd toxicity. Furthermore, we found that OsHMA2 localized at the node is involved in distribution of Cd to the grain. On the other hand, we found that OsABCC1 reduces As accumulation to the grain in rice. OsABCC1 is mainly localized to the tonoplast of phloem companion cells of the node.
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Report
(4 results)
Research Products
(17 results)
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[Journal Article] A rice ABC transporter, OsABCC1, reduces arsenic accumulation in the grain2014
Author(s)
Song, W. Y., Yamaki, T., Yamaji, N., Ko, D., Jung, K. H., Fujii-Kashino, M., An, G., Martinoia, E., Lee, Y. and Ma, J. F.
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Journal Title
Proc Natl Acad Sci USA
Volume: 111
Pages: 15699-15704
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Root and shoot transcriptome analysis of two ecotypes of Noccaea caerulescens uncovers the role of NcNramp1 in Cd hyperaccumulation.2014
Author(s)
Milner, M., Mitani-Ueno, N., Yamaji, N., Yokosho, K., Craft, E., Fei, Z., Ebbs, S., Zambrano, M., Ma, J. F*. Kochian, L
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Journal Title
Plant J
Volume: 78
Pages: 398-410
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Characterization of the high affinity Zn transporter from Noccaea caerulescens, NcZNT1, and dissection of its promoter for its role in Zn uptake and hyperaccumulation2012
Author(s)
Milner, M. J., Craft, E., Yamaji, N., Koyama, E., Ma, J. F. and Kochian, L. V.
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Journal Title
New Phytol.
Volume: 195
Pages: 113-123
Related Report
Peer Reviewed
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