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The host specificity of phytophagous beetles (by the aid of Cucurbitaceae-feeding beetles

Research Project

Project/Area Number 13660042
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 植物保護
Research InstitutionTohoku University

Principal Investigator

MATSUDA Kazuhiro  Tohoku University, Graduate School of Agricultural Science, Professor, 大学院・農学研究科, 教授 (00005662)

Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2003: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥2,800,000 (Direct Cost: ¥2,800,000)
Keywordshost specificity / Cucurbitaceae-feeding beetles / Cucurbitaceae / feeding stimulants / 寄主選択
Research Abstract

The host specificity of Cucurbitaceae-feeding beetles is explained by the existence of cucurbitacin in the host plants. The author investigates the feeding stimulants of Epilachna admirabilis, Aulacophora femoralls, A.nigripennis and A.lewisii which feed on Cucurbitaceae. The former 3 species are stimulated to feed by cucurbitacin, but the latter is not. A feeding stimulant was isolated from a sponge gourd which A.lewisii preferably feeds on. A isolated compound was a kind of steroids. This compound did not act as a feeding stimulant to E..adomirabilis, A.femoralis and A.nigirpennis This compound is a key substance when A.lewisii feeds on a sponge gourd. Trichosanthes kirilowii Maxim. var.japonicapreferably feeds on by. E.admirabilis A.femoralis and A.ninigripennis, but this plant dose not contain cucurbitacines. Feeding stimulants were identified them as a kind of steroids, 2A-diethyl 5 a cholesta-7,22E-dien 3 β-ol and luteolin-7-o-glucoside. Feeding stimulative activity was different from species specify. These results indicate that these substances are key substances when 3 species feed on T.kirilowii Maxim var.japonica. The main host plant of Paridea angulicollis is Gynostema pentaphyllum. A feeding stimulant was isolated from G.pentaphyllum, and was estimated as a kind of triterpenoid glucoside. It is thought that many phytophagous insects are not stimulated to feed by specific substances in the host plants. This investigation may reveale that what kind of substances are used when phytophgous insects feed on host plants not contained specific substances.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] M.Abe, K.Matsuda: "Differences in feeding behavior between Aulacohora nigripennis and A.Femoralis (Coleoptera : Chrysomelidae) to young and old leaves"Entomological Science in contribution.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Abe, K.Matsuda: "Differences in feeding behavior between Aulacobora nigripennis and A.femoralis(Coleoptera : Chrysomelidae)to yong and old plant leaves"Entomological Science. (投稿中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Matsuda: "Feeding stimulants of cucurbitaceae-feeding leaf beetle"Applied Entomology and Zoology. (予定).

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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