Indole Affects Biofilm Formation in Bacteria |
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Authors: | Mingxi Hu Can Zhang Yufei Mu Qianwei Shen Yongjun Feng |
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Affiliation: | (1) School of Life Science, Beijing Institute of Technology, 5# Zhongguancun Nandajie, Beijing, 100081, People’s Republic of China; |
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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. |
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Keywords: | Indole Biofilm Bacterial signal Quorum sensing |
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