| 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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| 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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