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Molecular basis of the intracellular symbiosis between deep-sea bivalve and the chemoautotrophic bacteria

Research Project

Project/Area Number 17K07519
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Evolutionary biology
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

YOSHIDA Takao  国立研究開発法人海洋研究開発機構, 地球環境部門(海洋生物環境影響研究センター), 主任技術研究員 (60399566)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords共生 / 遺伝子発現 / 相互作用 / 進化 / 生体分子 / 遺伝子
Outline of Final Research Achievements

To elucidate the molecular mechanism for maintaining the endosymbiosis between host animal and chemosynthetic bacteria, dual transcriptome analysis of host and endosymbiont was conducted using bivalves living in chemosynthetic ecosystems. Comparing the methabolic pathways both host and symbionts, we found that host bivalve was shown to share the metabolic pathway including organic compound biosynthesis between host and endosymbiont, suggesting tight interaction in this endosymbiosis.

Academic Significance and Societal Importance of the Research Achievements

化学合成生態系に生息する多くの動物は化学合成独立栄養細菌との共生関係を持つ共生系が存在する。他の共生系とは大きく異なり、宿主の多くは口や消化管が退化的で自ら食物摂取せず、細胞内に共生する化学合成独立栄養細菌が無機炭素やメタンから合成した有機物に完全に依存するとされている。本研究により、このユニークな共生系の実態を明らかにすることができ、共生による生物適応生存戦略の理解を深めることができると期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Book (1 results)

  • [Journal Article] Identification of cells expressing two peptidoglycan recognition proteins in the gill of the vent mussel, Bathymodiolus septemdierum2019

    • Author(s)
      Ikuta Tetsuro、Tame Akihiro、Saito Masaki、Aoki Yui、Nagai Yukiko、Sugimura Makoto、Inoue Koji、Fujikura Katsunori、Ohishi Kazue、Maruyama Tadashi、Yoshida Takao
    • Journal Title

      Fish & Shellfish Immunology

      Volume: 93 Pages: 815-822

    • DOI

      10.1016/j.fsi.2019.08.022

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Monoclonal antibodies against leukocytes in the beluga whale, <i>Delphinapterus leucas</i>2018

    • Author(s)
      Saito Chiaki、Ohishi Kazue、Kakizoe Yuka、Saito Masafumi、Mishima Hideki、Hongo Yuki、Nakamura Yoshimitsu、Nakazawa Masatoshi、Yoshida Takao、Maruyama Tadashi
    • Journal Title

      JAMSTEC Report of Research and Development

      Volume: 27 Issue: 0 Pages: 119-126

    • DOI

      10.5918/jamstecr.27.119

    • NAID

      130007506155

    • ISSN
      1880-1153, 2186-358X
    • Year and Date
      2018-09-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Morphological and functional characterization of hemocytes from two deep-sea vesicomyid clams Phreagena okutanii and Abyssogena phaseoliformis2018

    • Author(s)
      Tame Akihiro、Ozawa Genki、Maruyama Tadashi、Yoshida Takao
    • Journal Title

      Fish & Shellfish Immunology

      Volume: 74 Pages: 281-294

    • DOI

      10.1016/j.fsi.2017.12.058

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Monoclonal antibodies that recognize symbiotic bacteria and hemocytes in the deep-sea vesicomyid clam <i>Phreagena okutanii</i>2018

    • Author(s)
      Ohishi Kazue、Nakamura Yoshimitsu、Kusaka Chiho、Nagai Yukiko、Nakazawa Masatoshi、Yoshida Takao、Maruyama Tadashi
    • Journal Title

      JAMSTEC Report of Research and Development

      Volume: 26 Issue: 0 Pages: 75-83

    • DOI

      10.5918/jamstecr.26.75

    • NAID

      130006725614

    • ISSN
      1880-1153, 2186-358X
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Book] 深海――極限の世界 生命と地球の謎に迫る (第2章1・2と1・3担当)2019

    • Author(s)
      吉田 尊雄(藤倉 克則、木村 純一 編著 )
    • Total Pages
      296
    • Publisher
      講談社
    • ISBN
      9784065160428
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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