Table 2.

Acyl-HSL concentrations in cultures of a P. aeruginosa RpoS mutant (PAO-MW20) and the wild type, PAO1

Culture density (OD600)3OC12-HSL (μM)aC4-HSL (μM)a
PAO1MW20PAO1MW20
0.250.5 ± 0.20.7 ± 0.1<0.10.4 ± 0.1
1.53.1 ± 0.42.8 ± 0.30.5 ± 0.11.9 ± 0.1
3.04.4 ± 0.74.0 ± 0.63.9 ± 0.38.4 ± 0.7
4.03.8 ± 0.43.5 ± 0.512.8 ± 0.719.9 ± 1.1
  • a Values are means ± 1 standard deviation.