食品科学 ›› 2009, Vol. 30 ›› Issue (4): 142-144.doi: 10.7506/spkx1002-6630-200904027

• 分析检测 • 上一篇    下一篇

一种检测革兰氏阴性菌群体感应抑制剂的简便方法

綦国红1,董明盛2,王岁楼1   

  1. 1. 中国药科大学药学院 2.南京农业大学食品科技学院
  • 收稿日期:2008-01-15 修回日期:2008-07-11 出版日期:2009-02-15 发布日期:2010-12-29
  • 通讯作者: 綦国红 E-mail:qghbox@163.com
  • 基金资助:

    国家自然科学基金项目(30700627)

A Simple Method for Detecting Quorum Sensing Inhibitor in Gram-negative Bacteria

QI Guo-hong1,DONG Ming-sheng2,*,WANG Sui-lou1   

  1. (1. College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
    2. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China)
  • Received:2008-01-15 Revised:2008-07-11 Online:2009-02-15 Published:2010-12-29
  • Contact: QI Guo-hong1, E-mail:qghbox@163.com

摘要:

许多革兰氏阴性菌通过产生N- 酰基- 高丝氨酸内酯类(AHLs)化合物介导的群体感应(QS)现象来调控特定生理性状的表达。而AHL 类似物作为群体感应抑制剂(QSI)可使由QS 所调控的生理特性不表达或表达水平下降。本研究的目的是建立检测AHL 类似物方法。基于QS 抑制原理,建立了平板法及TLC 方法从微生物中筛选AHL 类似物。该方法简便有效,费用低廉,为筛选群体感应抑制剂提供了一种新方法。

关键词: 群体感应, 群体感应抑制剂, N-酰基-高丝氨酸内酯, 检测

Abstract:

Many Gram-negative bacteria regulate the expression of some physiological traits in quorum sensing (QS) mediated by N-acyl-homoserine lactones (AHLs). Quorum sensing inhibitor (QSI)of AHL antagonists can block or attenuate the expression of characteristic associated with QS. Based on the above inhibitory principle, this study developed an agar plate and TLC assay to detect the antagonists for N-acyl-homoserine in microorganism. This new method is simple, inexpensive and easy to application.

Key words: quorum sensing, quorum sensing inhibitor, n-acyl-homoserine lactones, detection

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