Figure 4From: Tobramycin at subinhibitory concentration inhibits the RhlI/R quorum sensing system in a Pseudomonas aeruginosaenvironmental isolate Proteolytic activities determined in the appropriate indicator LB plates. The P. aeruginosa lasI mutant (A) showed four-fold reduced proteolytic activity compared to WT (B). WT shows no difference in proteolytic activity in the presence of 0.05 μg/mL SIC of tobramycin (C).Back to article page