| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
The phytohormones auxin and brassinosteroid are both essential regulators of physiological and developmental processes, and it has been suggested that they act interdependently and synergistically. I showed that auxin stimulates brassinosteroid perception by regulating the amount of brassinosteroid receptors. Next, I found that genetic background influences brassinosteroid-related mutant phenotypes in rice and these phenomena are caused by a transposon insertion into the promoter of brassinosteroid receptor gene. Finally, I isolated a novel positive regulator of brassinosteroid signaling in rice. This protein encodes an U-box E3 ubiquitin ligase, and probably functions in interaction between brassinosteroid and another phytohormone.
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