| Project/Area Number |
13356002
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Bioproduction chemistry/Bioorganic chemistry
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
YOSHIHARA Teruhiko Hokkaido University, Graduate School of Agriculture, Professor, 大学院・農学研究科, 教授 (90002071)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUURA Hideyuki Hokkaido University, Graduate School of Agriculture, Associate Professor, 大学院・農学研究科, 助教授 (20344492)
TAHARA Satoshi Hokkaido University, Graduate School of Agriculture, Professor, 大学院・農学研究科, 教授 (50001475)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥43,810,000 (Direct Cost: ¥33,700,000、Indirect Cost: ¥10,110,000)
Fiscal Year 2003: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2002: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2001: ¥20,930,000 (Direct Cost: ¥16,100,000、Indirect Cost: ¥4,830,000)
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| Keywords | flower bud formation / theobroxide / Lasiodiplodia theobromae / regulation of flower bud formation |
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| Research Abstract |
1.Flower bud formation by theobroxide
1mM theobtoxide was sprayed to the test plants. Short day plants (rice, strawberry, soybean and poinsettia) produced flower bud. But there were difference of the effect between cultivars of strawberry and soybean.
2.Potato tuber formation by theobroxide
The field experiment of theobroxide treatment showed the increase of the yield 20% over non treatment. And theobroxide treatment induced the resistance against potato diseases.
3.Inhibition of the bolting of spinach by theobroxide
Theobroxide treatment inhibited the bolting of spinach.
4.Mechanism of theobroxide
By the experiment using a lipoxygenase inhibitor, the function of theobroxide is revealed that theobroxide stimulates the activity of a lipoxygenase. The activated lipoxygenase produces the potato tuber inducing stimulus tuberonic acid glucoside and flower inducing factor (?).
5.Application of the patent
Two patents on the production method of theobroxide were applied. The methods are fermentation and organic synthesis.
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