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Indole as an intercellular signal in microbial communities
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Indole as an intercellular signal in microbial communities
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Journal Article
Indole as an intercellular signal in microbial communities
2010
Overview
Abstract
Bacteria can utilize signal molecules to coordinate their behavior to survive in dynamic multispecies communities. Indole is widespread in the natural environment, as a variety of both Gram-positive and Gram-negative bacteria (to date, 85 species) produce large quantities of indole. Although it has been known for over 100 years that many bacteria produce indole, the real biological roles of this molecule are only now beginning to be unveiled. As an intercellular signal molecule, indole controls diverse aspects of bacterial physiology, such as spore formation, plasmid stability, drug resistance, biofilm formation, and virulence in indole-producing bacteria. In contrast, many non-indole-producing bacteria, plants and animals produce diverse oxygenases which may interfere with indole signaling. It appears indole plays an important role in bacterial physiology, ecological balance, and possibly human health. Here we discuss our current knowledge and perspectives on indole signaling.
Publisher
Blackwell Publishing Ltd,Blackwell,Oxford University Press
Subject
/ Bacteria
/ Bacteria - growth & development
/ Bacterial Physiological Phenomena
/ biofilm
/ Biofilms
/ Biofilms - growth & development
/ Biological and medical sciences
/ Ecology
/ Fundamental and applied biological sciences. Psychology
/ Gene Expression Regulation, Bacterial
/ indole
/ Indoles
/ Plasmids
