Research Article

Exposure of a 23F Serotype Strain of Streptococcus pneumoniae to Cigarette Smoke Condensate Is Associated with Selective Upregulation of Genes Encoding the Two-Component Regulatory System 11 (TCS11)

Figure 2

Effects of exposure of strain 172 of the pneumococcus to cigarette smoke condensate (CSC, 80 and 160 μg/mL) on biofilm formation (solid black bars) and growth (solid white bars) following 16 hours of incubation. The results of 3 experiments with 3 to 6 replicates in each system are expressed as the mean values ± SEMs. .
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