Bacteria use quorum sensing (QS) as a communication mechanism that releases small signaling molecules which allow synchronizing a series of activities involved in the pathogenesis, such as the biosynthesis of virulence factors or the regulation of growth of other bacterial species. HQNO is a metabolite of the
Pseudomonas aeruginosa
-specific QS signaling molecule PQS (
Pseudomonas
quinolone signal).
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