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How does the nematode find its host? -Optogenetics-based approach to the nervous-behavior system

Research Project

Project/Area Number 15K14896
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Insect science
Research InstitutionKyoto University

Principal Investigator

Takeuchi-Kaneko Yuko  京都大学, 農学研究科, 助教 (80452283)

Co-Investigator(Kenkyū-buntansha) 杉 拓磨  京都大学, 農学研究科, 研究員 (70571305)
神崎 菜摘  国立研究開発法人森林総合研究所, その他部局等, 主任研究員 等 (70435585)
小澤 理香  京都大学, 生態学研究センター, 研究員 (90597725)
Co-Investigator(Renkei-kenkyūsha) TAKEUCHI Ayako  福井大学, 医学部, 特命助教 (00378704)
Research Collaborator OKUMURA Etsuko  京都大学, 大学院農学研究科, 研究員
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords化学生態学 / 昆虫便乗性線虫 / ベニツチカメムシ / ジャンプ行動
Outline of Final Research Achievements

An entomophilic nematode Caenorhabditis japonica has a species-specific relationship with its carrier bug Parastrachia japonensis. We hypothesized that this relationship is based on a chemical communication via semiochemical and conducted several experiments to clarify the mechanism in detail.
Results obtained in preference tests showed that C. japonica uses semiochemical(s) contained in hexane extract of the host insect for host recognition, of which list has been narrowed by GC-MS analysis. Also, C. japonica was strongly attracted to benzaldehyde, which is known as one of the attractants for C. elegans. This suggests that C. japonica may equip and utilize a neural network similar to that of C. elegans.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

All Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] 昆虫嗜好性線虫Caenorhabditis japonicaの宿主探索行動における新型ジャンプ行動の発見2016

    • Author(s)
      奥村悦子・竹内祐子・杉 琢磨
    • Organizer
      日本線虫学会第24回大会
    • Place of Presentation
      東京農工大学(東京都小金井市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Discovery of a new jumping behaviour for host-finding of an entomophilic nematode Caenorhabditis japonica2016

    • Author(s)
      Etsuko Okumura, Yuko Takeuchi-Kaneko, Takuma Sugi
    • Organizer
      European Society of Nematologists 32nd Symposium
    • Place of Presentation
      Braga (Portugal)
    • Year and Date
      2016-08-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] C. elegans誘引物質に対するC. japonicaの誘引反応2015

    • Author(s)
      奥村 悦子・竹内 祐子・杉 拓磨
    • Organizer
      日本線虫学会第23回大会
    • Place of Presentation
      中部大学三浦記念会館(愛知県名古屋市)
    • Year and Date
      2015-09-02
    • Related Report
      2015 Research-status Report
  • [Presentation] Behaviors to fatty acid derived from the host bug in Caenorhabditis japonica2015

    • Author(s)
      Etsuko Okumura, Rika Ozawa, Yuko Takeuchi
    • Organizer
      Society of Nematologists Fifty-fourth Annual Meeting
    • Place of Presentation
      Michigan (U.S.A.)
    • Year and Date
      2015-07-19
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2018-03-22  

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