Research Article

Effect of Negative Pressure on Proliferation, Virulence Factor Secretion, Biofilm Formation, and Virulence-Regulated Gene Expression of Pseudomonas aeruginosa In Vitro

Figure 4

Analysis of virulence and biofilm-regulated genes, ToxA, RhlA, LasB, LasI, and RhlI, under negative pressure and atmospheric pressure. The atmospheric pressure group was used as calibrator with a value of 1, , , and . Expression of ToxA, RhlA, LasB, LasI, and RhlI in negative pressure group was 0.3-, 0.7-, 0.68-, 0.21-, and 0.11-fold that of the control group, respectively.