2009 Fiscal Year Final Research Report
Isolation and characterization of Si transporter
| Project/Area Number |
17078008
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Biological Sciences
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| Research Institution | Okayama University |
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Principal Investigator |
MA Kenbou Okayama University, 資源生物科学研究所, 教授 (80260389)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAJI Naoki 岡山大学, 資源生物科学研究所, 助教 (00444646)
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| Project Period (FY) |
2005 – 2009
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| Keywords | イネ / ケイ酸トランスポーター / 極性 / 吸収 / 分配 |
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| Research Abstract |
Silicon (Si) is a beneficial element for plant growth, which helps plants to overcome multiple stresses. In this project, we have identified several transporters involved in Si uptake and distribution. Lsi1 and Lsi2 identified from rice are expressed in the roots and polarly localized at the exodermis and endodermis. These transporters are important for Si uptake by the roots. Lsi6 is localized at the xylem parenchyma of leaf and node I and responsible for distribution of Si. We also identified similar transporters from maize and pumpkin. We found that they have different expression pattern and localization from rice.
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