2017 Fiscal Year Final Research Report
Identification of ancestral gibberellin in a moss
| Project/Area Number |
15H04492
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Bioorganic chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NAKAJIMA MASATOSHI 東京大学, 大学院農学生命科学研究科(農学部), 准教授 (50237278)
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| Co-Investigator(Kenkyū-buntansha) |
川出 洋 東京農工大学, (連合)農学研究科(研究院), 教授 (20291916)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYASHI Ken-ichiro 岡山理科大学, 理学部, 教授 (30289136)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | コケ植物 / 分化誘導物質 / 生理活性物質 / ジベレリン / ジテルペン |
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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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| Free Research Field |
植物活性制御学
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