| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2017: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
The moss Physcomitrella patens has a partial biosynthetic pathway for gibberellin and produces an intermediate, ent-kaurenoic acid (KA). Protonemal cell differentiation is incomplete under KA-deficiency and restored by KA application but not by gibberellin. Herein, two KA-metabolites, ent-3β-hydroxy-kaurenoic acid and ent-2α-hydroxy-kaurenoic acid were identified. The oxidation of KA at the C-3/C-2 position determines the activation or inactivation of the KA-metabolism, which appears to be an ancient type of gibberellin regulation.
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