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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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2012: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2011: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2010: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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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 / 転写制御 / 転写 / シグナル伝達 / 植物栄養 |
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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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Report
(4 results)
Research Products
(43 results)
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[Journal Article] A nitrate-inducible GARP family gene encodes an auto-repressible transcriptional repressor in rice2013
Author(s)
Sawaki, N., Tsujimoto, R., Shigyo, M., Konishi, M., Toki, S., Fujiwara, T. and Yanagisawa, S.
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Journal Title
Plant & Cell Physiology
Volume: 54
Issue: 4
Pages: 506-517
DOI
Related Report
Peer Reviewed / Open Access
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