Characterization of molecular mechanism of Zn transport in rice to fortify Zn of brown rice

Research Project

Project/Area Number	23780071
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Plant nutrition/Soil science
Research Institution	Kochi University
Principal Investigator	UENO Daisei 高知大学, 教育研究部総合科学系, 准教授 (90581299)
Project Period (FY)	2011 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000) Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords	イネ / 亜鉛 / トランスポーター / CDF / MTP
Research Abstract	In the present study, we identified two novel transporters for Zn in rice (Oryza sativa. L). OsMTP7 expresses around stele showed Zn transport ability in Saccharomyces cerevisiae. Knockout of OsMTP8 resulted in decreased and increased accumulation of Zn in the shoots and roots, respectively. Signal of GFP fused with OsMTP8 was detected in plasma membrane. Further, accumulation of OsMTP8 is suppressed by elevated level of Zn. These results suggest that OsMTP8 is involved in Zn translocation. The findings in this study will be beneficial for Zn fortification in rice.

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(3 results)