Fig. 7

Relative expression levels of UAMS-1 and USA300 genes in the in vitro biofilm as determined by real-time PCR. Expression levels of the icaA, fnbA, alt, and spa genes were determined by real-time PCR. The relative expression levels are illustrated as the ratio of the expression level observed in the biofilm versus in the stationary-phase planktonic culture. The relative expression levels were calculated by comparison of the level of gyrB expression in the same cDNA preparations