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Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling
Published on: June 25, 2015
Indole as an intercellular signal in microbial communities.
1School of Display & Chemical Engineering, Yeungnam University, Gyeongsan, Korea.
FEMS Microbiology Reviews
|January 15, 2010
Summary
Bacteria use indole as a signal molecule to coordinate group behaviors for survival. This molecule influences bacterial physiology, ecological balance, and potentially human health, with its roles still being uncovered.
Area of Science:
- Microbiology
- Bacterial Physiology
- Chemical Ecology
Background:
- Indole is a prevalent signaling molecule produced by numerous bacterial species (85 identified).
- Its production has been known for over a century, but its precise biological functions are still emerging.
- Indole acts as an intercellular signal, regulating critical bacterial processes.
Purpose of the Study:
- To review current knowledge on indole signaling in bacteria.
- To discuss the diverse roles of indole in bacterial physiology and community dynamics.
- To explore the implications of indole signaling for ecological balance and human health.
Main Methods:
- Literature review of studies on indole production and function in bacteria.
- Analysis of the known effects of indole on bacterial behaviors.
- Discussion of interactions between indole and other biological systems (e.g., oxygenases).
Main Results:
- Indole regulates bacterial spore formation, plasmid stability, drug resistance, biofilm formation, and virulence.
- Many non-indole-producing organisms possess oxygenases that can interfere with indole signaling.
- Indole significantly impacts bacterial physiology and inter-species interactions.
Conclusions:
- Indole is a crucial signaling molecule with broad impacts on bacterial life.
- Understanding indole signaling is vital for comprehending bacterial communities and their ecological roles.
- Further research into indole signaling may reveal new insights into bacterial pathogenesis and host interactions.
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