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Chemical Evolutionary Ecology Studies on the Repellent Substances from Shrews

Research Project

Project/Area Number 20K21270
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 38:Agricultural chemistry and related fields
Research InstitutionNagoya University

Principal Investigator

KITA Masaki  名古屋大学, 生命農学研究科, 教授 (30335012)

Co-Investigator(Kenkyū-buntansha) 森田 真布  名古屋大学, 附属菅島臨海実験所, 助教 (30865184)
大舘 智志  北海道大学, 低温科学研究所, 助教 (60292041)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords食虫動物 / トガリネズミ / 忌避物質 / 化学進化生態学
Outline of Research at the Start

トガリネズミは唾液に毒を持つ珍しい哺乳類であるが、その筋肉組織には昆虫忌避物質が含まれ、また臭腺には大型哺乳類を忌避させる匂い物質が含まれると示唆される。危険を察すると相手を忌避させる物質を放出する動物は多いが、個体の死後まで忌避作用が継続することは珍しい。そこで本研究ではトガリネズミ由来の被食、補食に関わる新奇生理活性物質を解明し、トガリネズミ科の適応進化における匂い物質の役割を理解することを目指す。本研究の進展は、環境負荷の少ない防虫剤や、鳥獣被害が深刻なイノシシ・クマ避け剤など、新規有用物質の創製につながると期待される。

Outline of Final Research Achievements

Shrews are unique mammals that have poisons in saliva, and it has been suggested that their muscle tissue contain insect repellent substances, and the odor glands contain odorants that repel large mammals. In this study, we aimed to discover novel functional substances related to predation derived from shrews, and to understand their roles in evolution. The enzymatic activity of salivary gland extracts were evaluated, and we established the presence of several serine proteases related to blood coagulation, such as kallikrein, plasmin, and thrombin. In addition, the volatile components contained in the odor grands were analyzed by GC-MS or other methods, and a macrolactone known as a musk odor substance was identified. In the future, we will synthesize the identified compounds, confirm their activities, and elucidate their physiological functions.

Academic Significance and Societal Importance of the Research Achievements

様々な捕食動物のいる過酷な環境にて、小型の哺乳類であるトガリネズミ類はどのように生き延び、独自に進化してきたのか、進化生態学の観点からも大変興味深い。また微量・不安定物質の解析技術が進展した今、世界に先駆けて野生動物の極微量の生理活性物質に挑戦することは高い意義がある。生態学、進化生物学など関連諸分野とも連携して化合物の機能を解明し、長期的には生態系の理解や保全につながる研究への展開が期待される。また本研究の進展により化学合成品と比較しても環境負荷の少ない防虫剤や、鳥獣被害が深刻なイノシシ・熊避け剤など新規有用物質の創製が期待される点で、社会的意義も高い。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 Other

All Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Remarks (1 results)

  • [Journal Article] Flavokawains, Plant-derived Chalcones, Inhibit Differentiation of Murine Pre-adipocytes2022

    • Author(s)
      Hanif Novriyandi、Iswantini Dyah、Hioki Yusuke、Murni Anggia、Kita Masaki、Tanaka Junichi
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 1 Pages: 54-57

    • DOI

      10.1246/cl.210615

    • NAID

      130008137579

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Eumitrins F-H: three new xanthone dimers from the lichen <i>Usnea baileyi</i> and their biological activities2022

    • Author(s)
      Nguyen Van-Kieu、Nguyen-Si Hoai-Vu、Devi Asshaima Paramita、Poonsukkho Pakarapon、Sangvichien Ek、Tran Thanh-Nha、Yusuke Hioki、Mitsunaga Tohru、Chavasiri Warinthorn
    • Journal Title

      Natural Product Research

      Volume: 無し Issue: 9 Pages: 1-11

    • DOI

      10.1080/14786419.2021.2023143

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The C29-C34 parts of antitumor macrolide aplyronine A serve as versatile actin-affinity tags2021

    • Author(s)
      Utomo Didik Huswo、Fujieda Akari、Tanaka Kentaro、Takahashi Momoko、Futaki Kentaro、Tanabe Kenta、Kigoshi Hideo、Kita Masaki
    • Journal Title

      Chemical Communications

      Volume: 57 Issue: 81 Pages: 10540-10543

    • DOI

      10.1039/d1cc04259a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isolation and structure?activity relationship studies of jacaranones: Anti-inflammatory quinoids from the Cuban endemic plant Jacaranda arborea (Bignoniaceae)2020

    • Author(s)
      Hirukawa Minako、Zhang Menghua、Echenique?Diaz Lazaro M.、Mizota Koji、Ohdachi Satoshi D.、Begu??Quiala Gerardo、Delgado?Laba?ino Jorge L.、G?mez?D?ez Jorgelino、Alvarez?Lemus Jos?、Machado Leandro Galano、N??ez Miguel Su?rez、Shibata Takahiro、Kigoshi Hideo、Kita Masaki
    • Journal Title

      Tetrahedron Letters

      Volume: 61 Issue: 26 Pages: 152005-152005

    • DOI

      10.1016/j.tetlet.2020.152005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic Diversity and Phylogeography of Thottapalayam thottimvirus (Hantaviridae) in Asian House Shrew (Suncus murinus) in Eurasia2020

    • Author(s)
      Kikuchi Fuka、Ohdachi Satoshi D.、Arai Satoru et al
    • Journal Title

      Frontiers in Cellular and Infection Microbiology

      Volume: 10

    • DOI

      10.3389/fcimb.2020.00438

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ブラリナトガリネズミ由来の神経毒ペプチドBPP 類の合成研究2022

    • Author(s)
      矢野佑介、福岡稜、Andres D. Maturana、北将樹
    • Organizer
      日本農芸化学会2022年度大会, 京都(オンライン)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Natural Product Prospect for Human Health.2021

    • Author(s)
      M. Kita
    • Organizer
      79th Airlangga Webinar Conference Series, Airlangga University, Indonesia (on-line)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Target identification and binding mode analysis of bioactive natural products.2021

    • Author(s)
      M. Kita
    • Organizer
      A3フォーサイト事業取りまとめシンポジウム, TKPガーデンシティ仙台
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ブラリナトガリネズミ由来新規神経毒ペプチドの合成研究2021

    • Author(s)
      矢野佑介, Andres D. Maturana, 森田真布, 北将樹
    • Organizer
      第67回トキシンシンポジウム、名古屋(オンライン)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Structures and Biological Activities of Neurotoxic Peptides from Short-tailed Shrew.2021

    • Author(s)
      (11)Yusuke Yano, Maho Morita, Toshiko Takenaka, Manabu Bessho, Andres D. Maturana, Satoshi D. Ohdachi, Daisuke Uemura, and Masaki Kita
    • Organizer
      The 2021 International Chemical Congress of Pacific Basin Societies (PACIFICHEM2021) Hawaii, USA (on-line)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 食虫性哺乳類における化学コミュニケーション2021

    • Author(s)
      北将樹、矢野佑介、鈴木麻佑子、森田真布、大舘智志
    • Organizer
      日本化学会第101春季年会・中長期シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] ブラリナトガリネズミ由来の神経毒ペプチドBPP類の合成研究2021

    • Author(s)
      矢野佑介,Maturana, Andres D., 森田真布,北将樹
    • Organizer
      日本農芸化学会2021年度大会(口頭発表)
    • Related Report
      2020 Research-status Report
  • [Presentation] 飼育実験による北海道産トガリネズミ属4種の 3 次元空間利用の種間差の解明2021

    • Author(s)
      谷島 桜, 大舘 智志, 河原 淳, 中島 啓裕
    • Organizer
      第68回 日本生態学会大会(ポスター)
    • Related Report
      2020 Research-status Report
  • [Presentation] 哺乳動物毒における化学コミュニケーションの解明2020

    • Author(s)
      北将樹, 矢野佑介, 鈴木麻由子, 荒井厚志, 森田真布, 稲垣英利
    • Organizer
      新学術領域研究(化学コミュニ)第2回領域リトリート
    • Related Report
      2020 Research-status Report
  • [Remarks] 名古屋大学 生命農学研究科 天然物ケミカルバイオロジー研究室

    • URL

      https://mkita64.wixsite.com/mysite

    • Related Report
      2021 Annual Research Report 2020 Research-status Report

URL: 

Published: 2020-08-03   Modified: 2023-01-30  

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