| Budget Amount *help |
¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2021: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2020: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2019: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Fiscal Year 2018: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Outline of Final Research Achievements |
In plants, nitrate acts as a signal and induces changes in gene expression profiles, metabolic balances, etc., referred to as nitrate responses. In this study, the physiological roles of nitrate as a signal were investigated by identifying new target genes of NLP transcription factors that govern nitrate responses and clarifying the functions of the new target genes. Identification of the aspartate oxidase gene required for de novo NAD+ biosynthesis and two homeodomain-leucine zipper class I transcription factors as direct target genes of the NLP transcription factors revealed that nitrate-dependent coordinated regulation of N assimilation and other metabolic pathways is essential to optimizing growth in response to N nutrient conditions.
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