2011 Fiscal Year Final Research Report
Identification of Al-binding peptide
| Project/Area Number |
22658022
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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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, 資源植物科学研究所, 教授 (80260389)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAJI Naoki 岡山大学, 資源植物科学研究所, 助教 (00444646)
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| Project Period (FY) |
2010 – 2011
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| Keywords | イネ / アルミニウム / ペプチド / 結合 |
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| Research Abstract |
We functionally characterized an ART-regulated gene, OsCDT3. OsCDT3 encodes a predicted peptide of 53 amino acid residues, of which 14(26. 4%) are cysteine residues. OsCDT3 was mainly expressed in the roots and its expression was specifically induced by Al exposure. OsCDT3 was localized to the plasma membrane. Knockdown of OsCDT3 resulted in increased sensitivity to Al in rice. Yeast expressing OsCDT3 showed increased tolerance to Al and decreased accumulation of Al. Our results indicate that OsCDT3 may play a role in detoxifying Al at the apoplast.
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