Quorum sensing: a population-density component in the determination of bacterial phenotype

Trends Biochem Sci. 1996 Jun;21(6):214-9.

Abstract

In bacteria, a network of cellular transduction mechanisms integrate signals from the bacterial environment to control gene expression, and thereby the bacterial phenotype. 'Quorum sensing' describes one such signalling mechanism in response to population density. It relies on the accumulation of small extracellular signalling molecules to modulate the transcription of target operons.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / biosynthesis
  • Bacteria / metabolism*
  • Bacterial Proteins / metabolism
  • Bacterial Proteins / pharmacology
  • Cell Division / drug effects
  • Conjugation, Genetic / physiology
  • Enzymes / biosynthesis
  • Gene Expression Regulation, Bacterial / genetics
  • Homoserine / analogs & derivatives
  • Lactones / pharmacology
  • Luminescent Measurements
  • Models, Biological
  • Molecular Structure
  • Phenotype*
  • Pheromones / pharmacology*
  • Repressor Proteins*
  • Signal Transduction / physiology
  • Trans-Activators*
  • Transcription Factors / metabolism
  • Transcription Factors / pharmacology

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Enzymes
  • Lactones
  • LuxI protein, Bacteria
  • Pheromones
  • Repressor Proteins
  • Trans-Activators
  • Transcription Factors
  • LuxR autoinducer binding proteins
  • Homoserine