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Indian Journal of Microbiology

, Volume 50, Issue 4, pp 362–368 | Cite as

Indole Affects Biofilm Formation in Bacteria

  • Mingxi Hu
  • Can Zhang
  • Yufei Mu
  • Qianwei Shen
  • Yongjun FengEmail author
Review Article

Abstract

Biofilm is bacterial population adherent to each other and to surfaces or interfaces, often enclosed by a matrix. Various biomolecules contribute to the establishment of biofilms, yet the process of building a biofilm is still under active investigation. Indole is known as a metabolite of amino acid tryptophan, which, however, has recently been proved to participate in various aspects of bacterial life including virulence induction, cell cycle regulation, acid resistance, and especially, signaling biofilm formation. Moreover, indole is also proposed to be a novel signal involved in quorum sensing, a bacterial cooperation behavior sometimes concerning the biofilm formation. Here the signaling role and molecular mechanism of indole on bacterial biofilm formation are reviewed, as well discussed is its relation to bacterial living adaptivity.

Keywords

Indole Biofilm Bacterial signal Quorum sensing 

Notes

Acknowledgment

This work was supported by the National Natural Science Foundation of China (Nos. 30870055 and 30400002) to F.Y.

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Copyright information

© Association of Microbiologists of India 2011

Authors and Affiliations

  • Mingxi Hu
    • 1
  • Can Zhang
    • 1
  • Yufei Mu
    • 1
  • Qianwei Shen
    • 1
  • Yongjun Feng
    • 1
    Email author
  1. 1.School of Life ScienceBeijing Institute of TechnologyBeijingPeople’s Republic of China

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