| Project/Area Number |
12660143
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
林学
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| Research Institution | Nihon Fukushi University |
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Principal Investigator |
FUKUDA Hideshi Nihon Fukushi Univ., Fac. of Social & Information Sci., Lecturer, 情報社会科学部, 講師 (50319307)
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| Co-Investigator(Kenkyū-buntansha) |
HIJII Naoki Nagoya Univ., Graduate Sch. of Bioagricultural Sci., Associate Prof., 大学院・生命農学研究科, 助教授 (80202274)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2001: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2000: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | woodwasp / Urocerus japonicus / symbiotic fungus / Amylostereum fungus / oviposition experiment / survival rate / maternal symbiotic fungus / resource utilization / 餌資源 / 系統関係 / DNA分析 / オナガキバチ / エコタイプ |
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| Research Abstract |
To clarify why a fungus-carrying woodwasp species, Urocerus japonicus emerge from old felled trees, we investigated an oviposition experiment of U. japonicus and a fungus-isolation test from trees oviposited by U. japonicus. U. japonicus females allowed to oviposit on living Cryptomeria japonica trees. About seven months after tree-felling, the symbiotic fungus, Amylostereum laevigatum was isolated from these trees. Moreover, when U. japonicus females oviposited on felled trees in which the symbiotic fungus propagated, the next generation emerged from these trees. These results mean that U. japonicus can reproduce by no use of the maternal symbiotic fungus.
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