Figure 1From: Bench-to-bedside review: Quorum sensing and the role of cell-to-cell communication during invasive bacterial infectionAutoinducer type 1 quorum sensing signal system in Gram-negative bacteria. The autoinducer type 1 quorum sensing (QS) system found in Vibrio fischeri, and many homologous variations on the system in other Gram-negative bacteria. AHL, acyl homoserine lactone; luxR/luxI, autoinducer type 1 system in Vibrio spp.; P, promoter site.Back to article page