| Project/Area Number |
15K14656
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Horticultural science
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
冨永 るみ 広島大学, 生物圏科学研究科, 准教授 (20373334)
澤 進一郎 熊本大学, 大学院先端科学研究部(理), 教授 (00315748)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 果樹 / ペプチドホルモン / メリステム / 植物組織培養 / 園芸科学 |
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| Outline of Final Research Achievements |
CLE25, a member of CLE peptide family, was added to the root-inducing medium and found to inhibit growth of ‘Hiratanenashi’ persimmon root. The treatment after the formation of root primordia was more effective than that at the start of the root induction. Microscopic observations revealed that the cell division of the cortical tissue in the treated roots was inhibited so that the roots were thinner. The root-inducing medium with CLE25 inhibited elongation of roots of ‘Pino Noir’ grape, whereas the roots did not become thin. CLE25 treatments to shoot apical meristems of ‘Hiratanenashi’ and ‘Pino Noir’ had no effect on their growth. As for CLE14, another plant peptide hormone, the treatment to Arabidopsis seedlings reduced in primary root length and induced excess root hair formation.
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