Bacterial biofilms and quorum sensing

The Influence of Material Surface Properties on Initial Bacterial Attachment and Biofilm Formation on Built Environment Surfaces

Across seven built-environment materials, initial attachment efficiency of four bacteria depended on species (Gram-negative higher than Gram-positive), not material, whereas 24-hour biofilm biomass was highest on stainless steel.

Cheating on cheaters dramatically affects social interactions in Pseudomonas aeruginosa

When pyoverdine and elastase are both needed, a pvdS mutant outcompetes the lasR cheater in P. aeruginosa and averts population collapse; a cost-ratio model with quorum sensing explains this.