Animal Husbandry and Feed Science ›› 2020, Vol. 41 ›› Issue (5): 7-12.doi: 10.12160/j.issn.1672-5190.2020.05.002

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Research Advances on Regulative Role of Quorum Sensing System in Formation of Bacterial Biofilm

ZHONG Hua-chen1, 2, HE Yin-feng1   

  1. 1.College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China;
    2.Institute of Resources, Environment and Detection Technology, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China
  • Received:2020-04-30 Published:2020-10-21

Abstract: This paper introduces the bacterial biofilm and its formation process, describes the conception of bacterial quorum sensing (QS) system, and expounds four types of regulative mechanism of QS system, including the AHL-LuxI/LuxR based QS system in Gram-negative bacteria, the QS system in Gram-positive bacteria, the LuxS/AI-2 mediated interspecific QS system, and the AI-3/ epinephrine/norepinephrine signaling system. The roles of QS system in bacteria and its regulative mechanism in formation of bacterial biofilm are elaborated, in hoping to provide references for the development of lactic acid bacteria agents and the investigations on antimicrobial resistance of pathogenic bacteria.

Key words: bacterial biofilm, quorum sensing, lactic acid bacteria, pathogenic bacteria

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