2013 Fiscal Year Final Research Report
Molecular mechanisms underlying nitrate-responsive gene expression in higher plants
| Project/Area Number |
22380043
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2010-04-01 – 2013-03-31
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| Keywords | 植物 / 硝酸応答 / 硝酸シグナル / 遺伝子発現 / 転写因子 / 栄養代謝調節 |
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| Research Abstract |
In plants, nitrate is not only a major nitrogen source but also a signaling molecule that modulates the expression of a wide range of genes, including the genes that encode nitrate assimilation-related enzymes. To reveal molecular mechanisms underlying nitrate-responsive gene expression, we identified NLPs as key transcription factors controlling nitrate-responsive gene expression and nitrate-inducible plant responses in this study. We showed that the NLP transcription factors are post-translationally activated by nitrate and then promote transcription of most of nitrate-inducible genes in Arabidopsis. Furthermore, we also suggested that the NLP transcription factors play similar roles in nitrate responses in an important crop, maize.
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Research Products
(34 results)
