N-acyl Homoserine Lactone-Producing or -Degrading Bacteria Isolated from the Intestinal Microbial Flora of Ayu Fish (Plecoglossus altivelis)

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概要

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• A number of gram-negative fish pathogens have a quorum-sensing system. These bacteria produce N-acyl-L-homoserine lactone (AHL) as a quorum-sensing signal molecule. We isolated AHL-producing and degrading bacteria from the intestinal microbial flora of Ayu fish (Plecoglossus altivelis). AHL-producing and degrading isolates were identified as members of the genus Aeromonas and Shewanella, respectively. Aeromonas sp. strain MIB010 produced at least three kinds of AHLs and it was predicted that the production of extracellular protease in strain MIB010 was regulated through quorum sensing. Shewanella sp. strain MIB015 showed obvious AHL-degrading activity and interrupted the AHL-mediated production of protease by the Aeromonas sp. Intestinal Shewanella strains might be useful as probiotic bacteria effective in the prevention of bacterial infectious diseases controlled by quorum sensing.

• 日本微生物生態学会の論文

著者

• Kato Norihiro

  Department of Gene Diagnostic and Therapeutic, Research Institute, International Medical Center of J

• Kato Norihiro

  Dep. Of Advanced Interdisciplinary Sciences Graduate School Of Engineering Utsunomiya Univ.

• IKEDA TSUKASA

  Department of Fermentation Technology, Hiroshima University

• Morohoshi Tomohiro

  Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya Unive

• EBATA ATSUSHI

  Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University

• NAKAZAWA SHIGEHISA

  Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University

• Ikeda Tsukasa

  Department Of Applied Chemistry Utsunomiya University

• Ikeda T

  Dep. Of Material And Environmental Chemistry Graduate School Of Engineering Utsunomiya Univ.

• Ebata Atsushi

  Department Of Applied Chemistry Faculty Of Engineering Utsunomiya University

• Kato Norihiro

  Department Of Advanced Interdisciplinary Sciences Graduate School Of Engineering Utsunomiya Universi

• Morohoshi Tomohiro

  Department Of Material And Environmental Chemistry Graduate School Of Engineering Utsunomiya Univers

• Kato Norihiro

  Deparetment Of Gene Diagnositics And Theraputics Resarch Institute International Medical Center Of J

• Nakazawa Shigehisa

  Department Of Applied Chemistry Faculty Of Engineering Utsunomiya University

• MOROHOSHI TOMOHIRO

  Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University

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