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Proposal of the concept of escape behavior from the predators in the bacterial kingdom

Research Project

Project/Area Number 24370013
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Ecology/Environment
Research InstitutionTokyo Metropolitan University

Principal Investigator

Matsuura Katsumi  首都大学東京, 理工学研究科, 教授 (30181689)

Co-Investigator(Renkei-kenkyūsha) HARUTA Shin  首都大学東京, 理工学研究科, 准教授 (50359642)
Research Collaborator HANADA Satoshi  首都大学東京, 理工学研究科, 教授 (10357791)
MOROHOSHI Sho  首都大学東京, 理工学研究科, 客員研究員
FUKUSHIMA Shunichi  首都大学東京, 理工学研究科, 大学院生
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords微生物群集 / 光合成細菌 / Chloroflexus / 滑走運動 / 捕食 / タンパク質分解酵素 / プロテアーゼ / 逃避行動 / 環境微生物 / 微生物生態 / 細菌運動 / 物質循環 / 菌体外プロテアーゼ
Outline of Final Research Achievements

Certain bacteria secrete lytic enzymes to kill other bacteria for prey. Such bacteria are called predators. In this study, we proposed the existence of an escape behavior from predators in the bacterial kingdom for the first time. The filamentous gliding bacterium (Chloroflexus aggregans) is a thermophilic unoxygenic photosynthesis bacterium. The bacterial cells move away or escape from protease of low concentration, which are secreted from co-existed heterotrophic bacteria. When the concentration of the protease is high, the photosynthetic bacteria are lysed for the prey of the protease-secreting bacteria. When the escape behavior is observed, some peptides of molecular mass of less than 1,500 were released from the photosynthetic bacteria, suggesting that they are involved in the escape behavior. Gliding-motility mechanism for the escape was also studied, and we suggest a cell surface structure moves along the longer axis of the cells with a similar rate of gliding motility.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (15 results)

All 2016 2015 2014 2013 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (12 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Journal Article] Gliding motility driven by individual cell-surface movements in a multicellular filamentous bacterium Chloroflexus aggregans2016

    • Author(s)
      Fukushima, S., S. Morohoshi, S. Hanada, K. Matsuura and S. Haruta
    • Journal Title

      FEMS Microbiol. Let.

      Volume: 363 Issue: 8 Pages: fnw056-fnw056

    • DOI

      10.1093/femsle/fnw056

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Secreted protease mediates interspecies interaction and promotes cell aggregation of the photosynthetic bacterium Chloroflexus aggregans2015

    • Author(s)
      Morohoshi, S., K. Matsuura and S. Haruta
    • Journal Title

      FEMS Microbiology Letters

      Volume: 362 Issue: 3 Pages: 1-5

    • DOI

      10.1093/femsle/fnu046

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] A trial of isolation of thermophilic aerobic nitrogen-fixing bacteria from hot springs2015

    • Author(s)
      Nishihara, A., M. Kojima, K. Matsuura and S. Haruta
    • Organizer
      19th International Congress on Nitrogen Fixation
    • Place of Presentation
      Pacific Grove, USA
    • Year and Date
      2015-10-04
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sulfur disproportionation is achieved by co-metabolism with photosynthetic sulfide oxidation to sulfur2015

    • Author(s)
      Kamiya, N., K. Matsuura and S. Haruta
    • Organizer
      EMBO Workshop on Microbial sulfur metabolism
    • Place of Presentation
      Helsingor, Denmark
    • Year and Date
      2015-04-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exogenous protease released signal promoting cell aggregation of a thermophilic filamentous bacterium2014

    • Author(s)
      Morohoshi, S., K. Matsuura and S. Haruta
    • Organizer
      5th ASM Conference on Cell-Cell Communication in Bacteria
    • Place of Presentation
      San Antonio (アメリカ合衆国)
    • Year and Date
      2014-10-18 – 2014-10-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] 細菌界における捕食に対する逃避行動:糸状性光合成細菌の滑走運動について2013

    • Author(s)
      諸星聖、松浦克美、春田伸
    • Organizer
      日本生態学会第60回大会
    • Place of Presentation
      静岡
    • Related Report
      2012 Annual Research Report
  • [Presentation] Exogenous protease promoted cell aggregation of a filamentous bacterium Chloroflexus aggregans2012

    • Author(s)
      Morohoshi, S., K. Matsuura, and S. Haruta
    • Organizer
      14th International Symposium on Microbial Ecology
    • Place of Presentation
      Copenhagen
    • Related Report
      2012 Annual Research Report
  • [Presentation] Photoautotrophic growth of Chloroflexus aggregans in an enrichment culture derived from hot spring microbial mats2012

    • Author(s)
      Iwata, S, 他4名
    • Organizer
      14th International Symposium on Phototrophic Prokaryotes
    • Place of Presentation
      Porto
    • Related Report
      2012 Annual Research Report
  • [Presentation] Illumination changed the response to oxygen of a facultative anaerobic photosynthetic bacterium, Chloroflexus aggregans2012

    • Author(s)
      福島俊一, 他3名
    • Organizer
      第28回日本微生物生態学会
    • Place of Presentation
      豊橋
    • Related Report
      2012 Annual Research Report
  • [Presentation] Autotrophic growth of anoxygenic phototroph, Chloroflexrus aggregans、 supported by a heterotroph2012

    • Author(s)
      岩田聡実, 他4名
    • Organizer
      第28回日本微生物生態学会
    • Place of Presentation
      豊橋
    • Related Report
      2012 Annual Research Report
  • [Presentation] 緑色糸状細菌 Chloroflexus aggregans の増殖限界温度を超えた高温耐 性について

    • Author(s)
      坂庭眞吾、諸星聖、松浦克美、春田伸
    • Organizer
      第 29 回日本微生物生態学会
    • Place of Presentation
      鹿児島
    • Related Report
      2013 Annual Research Report
  • [Presentation] 温泉バイオマットにおける S0 還元活性と硫黄循環

    • Author(s)
      大滝宏代、松浦克美、春田伸
    • Organizer
      第 29 回日本微生物生態学会
    • Place of Presentation
      鹿児島
    • Related Report
      2013 Annual Research Report
  • [Presentation] 糸状性滑走細菌の外来性プロテアーゼによる細胞凝集性促進メカニズム

    • Author(s)
      諸星聖、松浦克美、春田伸
    • Organizer
      第 29 回日本微生物生態学会
    • Place of Presentation
      鹿児島
    • Related Report
      2013 Annual Research Report
  • [Presentation] プロテアーゼ生産菌による捕食的溶解と被食細菌の逃避行動

    • Author(s)
      諸星聖、加藤紗織、松浦克美、春田伸
    • Organizer
      第 61 回日本生態学会大会
    • Place of Presentation
      広島
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www.comp.tmu.ac.jp/kmatsuura/em1ab/index.html

    • Related Report
      2012 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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