| Budget Amount *help |
¥130,780,000 (Direct Cost: ¥100,600,000、Indirect Cost: ¥30,180,000)
Fiscal Year 2021: ¥28,470,000 (Direct Cost: ¥21,900,000、Indirect Cost: ¥6,570,000)
Fiscal Year 2020: ¥28,990,000 (Direct Cost: ¥22,300,000、Indirect Cost: ¥6,690,000)
Fiscal Year 2019: ¥28,990,000 (Direct Cost: ¥22,300,000、Indirect Cost: ¥6,690,000)
Fiscal Year 2018: ¥28,470,000 (Direct Cost: ¥21,900,000、Indirect Cost: ¥6,570,000)
Fiscal Year 2017: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
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| Outline of Final Research Achievements |
The molecular and genetic studies revealed that among the cytokinin molecular species transported from the root to the shoot via the vascular system, the precursor-type transport form (trans-zeatin riboside) plays an important role in the maintenance of shoot apical stem cell activity mediated by LOG, an activating enzyme of cytokinin, while the active-type transport form (trans-zeatin) is mainly involved in the control of post-differentiation traits such as leaf area. Integrated with the findings on the regulation of cytokinin biosynthetic gene expression in response to nitrogen nutrient conditions, we constructed a molecular model of cytokinin action on shoot apical stem cells in the regulation of plant growth and development in response to nutrient conditions.
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