| Budget Amount *help |
¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
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| Outline of Final Research Achievements |
In model plant Arabidopsis, I revealed that phytochrome B (phyB)-mediated red-light signaling is involved in the promotion of uptake and utilization of phosphate ion and nitrogen compounds. Under the downstream of phyB, HY5 and PIF transcription factors regulate the expression of genes associated with uptake of phosphate ion and nitrogen compounds in roots. I also revealed that phyB-mediated red-light signaling in rice also has an important role in the promotion of phosphate uptake. Furthermore, the grafting experiment using Arabidopsis seedlings revealed that shoot localized HY5 and PIF transcription factors affect the expression of genes associated with uptake and utilization of phosphate ion and nitrogen compounds in roots.
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