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Enrichment of electrode-respiring microorganisms derived from marine environments and their functional analyses

Research Project

Project/Area Number 16H07492
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Biofunction/Bioprocess
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

KASHIMA Hiroyuki  国立研究開発法人海洋研究開発機構, 深海・地殻内生物圏研究分野, ポストドクトラル研究員 (70780914)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords微生物電気化学 / 細胞外電子伝達 / 電極呼吸 / 鉄酸化細菌 / 微生物 / 微生物電気化学システム / 電気合成 / 海洋微生物
Outline of Final Research Achievements

This study intended to survey novel electrosynthetic microorganisms that extracellularly uptake electrons from poised electrodes in bioelectrochemical systems (BESs), and to understand their cellular functions. Cathodic BES reactor operations targeted to obtain novel electrosynthetic microbial communities with inoculums derived from marine hydrothermal environments did not resulted in solid enrichment of microorganisms capable of cathodic electron uptake due to low biomass growth. On the other hand, this study developed a method incorporating microscopic cellular metabolic activity imaging techniques to examine cells colonized on electrodes. As a result of screening tests examined metal reducing/oxidizing bacterial isolates with the developed method, electrotrophic activity was revealed in an iron-oxidizing isolate derived from a deep-sea hydrothermal field.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (6 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Open Access: 1 results,  Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 環境中の電子移動と微生物2017

    • Author(s)
      鹿島裕之
    • Journal Title

      生物工学会誌

      Volume: 95 Pages: 739-739

    • Related Report
      2017 Annual Research Report
    • Open Access
  • [Journal Article] Full cell simulation and the evaluation of the buffer system on air-cathode microbial fuel cell2017

    • Author(s)
      Ou Shiqi、Kashima Hiroyuki、Aaron Douglas S.、Regan John M.、Mench Matthew M.
    • Journal Title

      Journal of Power Sources

      Volume: 347 Pages: 159-169

    • DOI

      10.1016/j.jpowsour.2017.02.031

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 電気培養を用いての深海熱水噴出域からの電気利用微生物の探索2018

    • Author(s)
      設樂真莉子,山本正浩,谷崎明子,鹿島裕之,布浦拓郎,高井研
    • Organizer
      ブルーアースサイエンス・テク2018
    • Related Report
      2017 Annual Research Report
  • [Presentation] 電極を電子源とした鉄酸化細菌の培養に見る電気栄養的微生物活動の兆候2017

    • Author(s)
      鹿島裕之, 牧田寛子, 山本正浩, 高井研
    • Organizer
      環境微生物系学会合同大会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Electrotrophic Activities of Iron-Oxidizers derived from Marine Hydrothermal Environments2017

    • Author(s)
      Hiroyuki Kashima, Hiroko Makita, Masahiro Yamamoto, Ken Takai
    • Organizer
      6th General Meeting of the International Society for Microbial Electrochemistry and Technology 2017 (ISMET6)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shift between electron discharge and uptake by electrode-associated Geobacter metallireducens biofilms2016

    • Author(s)
      Hiroyuki Kashima and John M Regan
    • Organizer
      日本微生物生態学会 第31回大会
    • Place of Presentation
      横須賀市文化会館 (神奈川県横須賀市)
    • Year and Date
      2016-10-23
    • Related Report
      2016 Annual Research Report

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Published: 2016-09-02   Modified: 2019-03-29  

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