1992 Fiscal Year Final Research Report Summary
Physiological activity in volatile flavor components of winter buds of birches under the gaseous phase
| Project/Area Number |
02806028
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
林学
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| Research Institution | The Univ. of Tokyo |
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Principal Investigator |
WATANABE Sadamoto Univ.of Tokyo,Fac.of Agriculture,Prof., 農学部(林), 教授 (30182918)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Ikuo Univ.of Tokyo,Fac.of Agriculture,Assistant, 農学部(林), 助手 (70012086)
IDE Yuji Univ.of Tokyo,Fac.of Agriculture,Associate Prof., 農学部(林), 助教授 (90213024)
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| Project Period (FY) |
1990 – 1992
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| Keywords | Chemical communication / Allelopathy / cis-3-Hexen-1-ol / Phenolic extractives / Antifeedant / Betula platyphylla var.japonica / Essential oils / Suspension culture |
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| Research Abstract |
The basic research for the study of chemical communication in tree has begun. First, as a substance of chemical communication between tree leaf and leaf under the larvae feedings condition, cis-3-hexen-1-ol has confirmed(Watanabe et al 1990). Second, the effect of cis-3-hexen-1-ol treatment on the changes of phenolic extractives in the leaves of Betula playtphylla var.japonica investigated. As a result, it was demonstrated the gastreatment by cis-3-hexen-1-ol caused the total amount of phenolic component(3,4'-dihydroxypropiophenone-3-b-D-glucopyranoside; DHP-Glu) in the leaves to increase significantly(Sugawara et al 1992). Third, synthesis of DHP-Glu by enzymatic transglucosylation(Mori et al:1992). Fourth,relation between phenolic component and feeding of larvae has observed. Effect of the phenolic constituent on feeding of larvae are: in highly concentrated apply leaves,antifeedant for larvae,but decreased concentration one has changed feedant and law mortality rate for control(Watanabe et al:1992,1993). Interaction between constituents of birch bud essential oil and plants/plant cell was tested. It was proved that these substances had some effects on the induction of plant or cell growth(Watanabe:1991,Ide et Watanabe:1992).
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