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2011 Fiscal Year Final Research Report

Identification of the expression mechanism of the virulence factors by quorum sensing in plant pathogen and its application

Research Project

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Project/Area Number 21780063
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Applied microbiology
Research InstitutionUtsunomiya University

Principal Investigator

MOROHOSHI Tomohiro  宇都宮大学, 大学院・工学研究科, 助教 (90361360)

Project Period (FY) 2009 – 2011
Keywordsクオラムセンシング / アシル化ホモセリンラクトン / 植物病原菌 / Pantoea ananatis / quorum sensing / acylhomoserine lactone / plant pathogen
Research Abstract

Many plant pathogens have a quorum-sensing system, a cell-cell communication mechanism that depends on cell population density. Several kinds of N-acyl homoserine lactone (AHL) have been identified as signal compounds involved in this mechanism. In this study, we attempted to identify the unknown factors, which were regulated by AHL-mediated quorum sensing in the plant pathogen Pantoea ananatis SK-1. As the results, it was revealed that the production of extracellular polysaccharide (EPS) and cell aggregation were regulated by AHL-mediated quorum sensing in P. ananatis SK-1.

Research Products

(10 results)

All 2012 2011 2010 2009 Other

All Journal Article Presentation Remarks

  • [Journal Article] Exopolysaccharide production is influenced by sugars, N-acyl homoserine lactone and transcriptional regulators RcsA and RcsB, but does not affect pathogenicity in the plant pathogen Pantoea ananatis2011

    • Author(s)
      T. Morohoshi, K. Oseki, T. Ikeda
    • Journal Title

      Biosci. Biotech. Biochem.

      Volume: 75 Pages: 997-999

    • Peer Reviewed
  • [Journal Article] Cell aggregation is negatively regulated by N-acyl homoserine lactone-mediated quorum sensing in Pantoea ananatis SK-12010

    • Author(s)
      T. Morohoshi, Y. Ogata, T. Ikeda
    • Journal Title

      J. Biosci. Bioeng.

      Volume: 112 Pages: 566-569

    • Peer Reviewed
  • [Presentation] Pantoea ananatisのQuorum Sensingに制御される病原性因子の探索2012

    • Author(s)
      諸星知広,菊池健太,緒方優二,上岡夏海,池田宰
    • Organizer
      平成24年度日本植物病理学会大会
    • Place of Presentation
      福岡国際会議場
    • Year and Date
      20120328-30
  • [Presentation] Cell aggregation is regulated by N-acyl homoserine lactone-mediated quorum sensing in the plant pathogen Pantoea ananatis2011

    • Author(s)
      T. Morohoshi, Y. Ogata, T. Ikeda
    • Organizer
      Asian Congress on Biotechnology 2011 (ACB-2011)
    • Place of Presentation
      Shanghai, China
    • Year and Date
      20110511-15
  • [Presentation] 植物病原菌Pantoea ananatisにおける菌体凝集のクオラムセンシングによる制御2011

    • Author(s)
      諸星知広,緒方優二,池田宰
    • Organizer
      日本農芸化学会2011年度大会
    • Place of Presentation
      京都女子大学
    • Year and Date
      20110325-28
  • [Presentation] The production of carotenoid pigments is regulated by acylhomoserine lactone-mediated quorum sensing in Pantoea ananatis2010

    • Author(s)
      N. Kamioka, T. Morohoshi, T. Ikeda
    • Organizer
      2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      20101215-20
  • [Presentation] 植物病原菌Pantoea ananatisにおける菌体凝集のクオラムセンシングによる制御2010

    • Author(s)
      緒方優二,諸星知広,池田宰
    • Organizer
      日本生物工学会2010年度大会
    • Place of Presentation
      宮崎シーガイア
    • Year and Date
      20101027-29
  • [Presentation] 植物病原菌Pantoea ananatisの菌体外多糖生産に関わる遺伝子群の解析2010

    • Author(s)
      諸星知広,大関貴恵美,池田宰
    • Organizer
      日本農芸化学会2010年度大会
    • Place of Presentation
      東京大学
    • Year and Date
      20100327-30
  • [Presentation] 植物病原菌Pantoea ananatisのクオラムセンシングによる菌体外多糖生産制御機構の解析2009

    • Author(s)
      大関貴恵美,諸星知広,池田宰
    • Organizer
      日本生物工学会2009年度大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20090923-25
  • [Remarks] 生物工学研究室ホームページ

    • URL

      http://www.chem.utsunomiya-u.ac.jp/lab/bio/

URL: 

Published: 2013-07-31  

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