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Processes & Traits Controlled by QS, Quorum Sensing(QS): Models &…
Processes & Traits Controlled by QS
Bacterial biofilm formation & maturation
human bacterial infections
Reduces efficacy of antibiotics due to lowered penetration into biofilm and increased antibiotic gene transfer
naturally occuring
leaves, fallen logs, etc.
teeth
cavities and gum disease
biomedical engineering
Environmental signal triggers free-living cells to attach to each other via biofilm or contact
Biofilm acts as anchorage and adhension site for more bacteria
Extracellular matrix is formed to coat the colony
Virulence
Virulence factor production
Aggregation
Bacteriocins
Biosurfactant production
aids motility
Competence
Conjugation
Exoproducts
Exopolysaccharides
Motility
Membrane vesicles
Nodulation/symbiosis
Quorum Sensing(QS): Models & Mechanisms
Alternatives/Extensions to QS Model
Diffusion Sensing
Efficiency Sensing