Quorum Sensing Regulation of genes expression in response to population density Acylated homoserine lactone(AHL) molecules might be produced and excreted by all cells in a given population Higher population density results in greater concentration of Ahl AHL molecules activate a specific transcriptional activator protein, resulting in specific transcription inductionQuorum Sensing • Regulation of genes expression in response to population density • Acylated homoserine lactone (AHL) molecules might be produced and excreted by all cells in a given population • Higher population density results in greater concentration of AHL • AHL molecules activate a specific transcriptional activator protein, resulting in specific transcription induction