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Predicting spatio-/temporal-variation of parasite-mediated energy flow by revealing neural mechanisms of host manipulation by nematomorph parasites

Research Project

Project/Area Number 15K14606
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Ecology/Environment
Research InstitutionKobe University

Principal Investigator

Sato Takuya  神戸大学, 理学研究科, 准教授 (30456743)

Co-Investigator(Kenkyū-buntansha) 山崎 将紀  神戸大学, 農学研究科, 准教授 (00432550)
佐倉 緑  神戸大学, 理学研究科, 准教授 (60421989)
久保 拓弥  北海道大学, 地球環境科学研究院, 助教 (80344498)
Research Collaborator Aonuma Hitoshi  北海道大学, 電子科学研究所, 准教授 (20333643)
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宿主操作 / 神経メカニズム / 系外資源流 / ハリガネムシ / 寄生者 / エネルギー流 / 生体アミン / 寄生者介在型エネルギー流
Outline of Final Research Achievements

Nematomorph parasites indirectly strengthen energy flow through ecosystems via behavioral manipulation of their terrestrial hosts. However, neural mechanisms underlying this behavioral manipulation by the nematomorphs have not yet been clarified, which is making us difficult to predict the temporal-/spatial- variations of the parasite-mediated energy flow. To bridge the gaps between ecological and neuro-ethological knowledge about host manipulations, we examined behavior and brain biogenic monoamine levels in two Mantodea species parasitized by the nematomorphs to elucidate the neural mechanisms of the nematomorphs’ host manipulation. Overall, the locomotion activities of mantis harboring mature nematomorphs tended to be high irrespective of time of the day. In the parasitized mantis, dopamine and octopamine levels in the brain tended to be higher than those in the un-parasitized one, which might be one of the neural mechanisms of the behavioral manipulation by the nematomorphs.

Report

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

    (2 results)

All 2016 2015

All Presentation (2 results)

  • [Presentation] Changes in biogenic amine levels and locomotion activities in the praying mantis Tenodera angustipennis and Hierodula perifella caused by the parasitic horsehair worm Chordodes sp.2016

    • Author(s)
      Kimura F, Aonuma H, Sato T, Sakura M
    • Organizer
      22nd International Congress of Zoology/ 87th Meeting of the Zoological Society of Japan
    • Place of Presentation
      沖縄県・那覇市
    • Year and Date
      2016-11-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Change in biogenic amine levels in the narrow-winged mantis Tenodera angustipennis caused by the parasitic horsehair worm Chordodes sp.2015

    • Author(s)
      木村文、青沼仁志、佐藤拓哉、佐倉緑
    • Organizer
      第40回日本比較内分泌学会大会、第37回日本比較生理生化学会大会合同大会
    • Place of Presentation
      アステールプラザ(広島県・広島市)
    • Year and Date
      2015-12-12
    • Related Report
      2015 Research-status Report

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

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