2014 Fiscal Year Final Research Report
Analysis of encapsulation in cellular defence mechanism of lepidopteran larva
| Project/Area Number |
24380032
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied entomology
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KAWAKITA Kazuhito 名古屋大学, 大学院生命農学研究科, 教授 (90186065)
KITAJIMA Ken 名古屋大学, 生物機能開発利用センター, 教授 (80192558)
MINAKUCHI Chieka 名古屋大学, 大学院生命農学研究科, 助教 (90509134)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 細胞性免疫 / 包囲作用 / メラニン化 / 免疫レクチン / Cotesia kariyai / Meteorus pluchricornis |
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| Outline of Final Research Achievements |
Insects have cellular defence system against parasites or foreign substances invaded into the body hemocoel. However, some endoparasitoids can avoid the encapsulation of the host by polydnavirus (PDV) plus venom injected into the host hemocoel at oviposition and teratocytes (Tc) that develop from serosal cells of the egg during larval stage. It was found that hyper spread cells of the Mythimna separata host (Ms-HSC) attached on the surface of the foreign substance like glass slide or of parasitoid larva, and made melanin formation that works as marker to another hemocytes. On the other hand, both PDV and venom also teratocytes produced factor inhibiting the function of HSC, especially venom worked in very early stage of parasitization.
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| Free Research Field |
昆虫生理学
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