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Environmental adaptation of cosmopolitan microorganisms living in deep-sea hydrothermal environments and the application of insights in the microbial genetics to evaluation of the ocean current

Research Project

Project/Area Number 17K15301
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Aquatic bioproduction science
Research InstitutionHokkaido University

Principal Investigator

Mino Sayaka  北海道大学, 水産科学研究院, 助教 (00755663)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords深海底熱水活動域 / 生物地理 / Campylobacteria / Epsilonproteobacteria / 微生物群集構造 / 分散 / 微生物地理 / 熱水活動域 / MLSA / 微生物分布 / 集団遺伝学
Outline of Final Research Achievements

The objectives of this study are to understand the environmental adaptation and the distribution pattern of cosmopolitan microorganisms living in hydrothermal environments, and to develop the fundamentals for evaluating the ocean currents from the aspect of biological insights. We have obtained the isolates of cosmopolitan species from the shallow and deep-sea hydrothermal environments, and have compared their phenotypic characteristics. In addition, in order to evaluate their distribution pattern, we have analyzed the genetic diversity of the isolates by MLSA.

Academic Significance and Societal Importance of the Research Achievements

海洋の還元的環境に普遍的に生息するコスモポリタン微生物のを対象に,そのゲノムワイドな遺伝的多様性を評価することは,海洋微生物の分布様式の形成や種分化メカニズムの理解に寄与するとともに,生物学的側面から海洋循環を評価する新規手法構築の足がかりになることが期待できる。さらに,本研究で得た新規性の高い難培養微生物株は,難培養性系統群の生理生態学的特徴の理解にも貢献するものである。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2021 2020 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] Hydrogenimonas urashimensis sp. nov., a hydrogen-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal vent in the Southern Mariana Trough2021

    • Author(s)
      Mino Sayaka、Shiotani Taiki、Nakagawa Satoshi、Takai Ken、Sawabe Tomoo
    • Journal Title

      Systematic and Applied Microbiology

      Volume: 44 Issue: 1 Pages: 126170-126170

    • DOI

      10.1016/j.syapm.2020.126170

    • NAID

      120007187742

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nitrosophilus alvini gen. nov., sp. nov., a hydrogen-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal vent in the East Pacific Rise, inferred by a genome-based taxonomy of the phylum “Campylobacterota”2020

    • Author(s)
      Shiotani Taiki、Mino Sayaka、Sato Wakana、Nishikawa Sayo、Yonezawa Masanori、Sievert Stefan M.、Sawabe Tomoo
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 12 Pages: e0241366-e0241366

    • DOI

      10.1371/journal.pone.0241366

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biogeochemical Implications of N2O-Reducing Thermophilic Campylobacteria in Deep-Sea Vent Fields, and the Description of Nitratiruptor labii sp. nov.2020

    • Author(s)
      Fukushi Muneyuki、Mino Sayaka、Tanaka Hirohisa、Nakagawa Satoshi、Takai Ken、Sawabe Tomoo
    • Journal Title

      iScience

      Volume: 23 Issue: 9 Pages: 101462-101462

    • DOI

      10.1016/j.isci.2020.101462

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 沖縄トラフ深海底熱水活動域由来の新規好熱性 Campylobacteria2020

    • Author(s)
      深澤操,美野さやか,他3名
    • Organizer
      令和2年度日本水産学会北海道支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Distribution pattern of microbial communities in the shallow-water hydrothermal field off Kueishan Island, Taiwan2018

    • Author(s)
      冨永千晶、美野さやか
    • Organizer
      日本微生物生態学会 第32回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 沖縄近海の熱水域におけるコスモポリタン微生物の地理的分布様式2017

    • Author(s)
      美野さやか
    • Organizer
      第51回ビブリオシンポジウム
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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