Microbial Primer: LuxR- LuxI Quorum Sensing

Quorum sensing is a term describing bacterial cell- to- cell communication systems for monitoring and responding to changes in population density. This primer serves as an introduction to the canonical LuxR- LuxI- type quorum sensing circuits common to many species of Gram- negative bacteria. Quorum sensing can synchronize behaviours across a community. Different species employ quorum sensing strategies to control specific behaviours such as bioluminescence, virulence factor production, secondary metabolite production, and biofilm formation.