FIG 1.

Quantitative real-time PCR analysis of the expression of resistance-associated and virulence-associated genes in S. aureus strains 10827, Mu3, and Mu50 and their series of vancomycin-resistant induced strains. Results are presented relative to their respective parental strain 10827, Mu3, or Mu50, the value for which has been normalized to 1. (A) Expression of vraR. (B) Expression of hla, hlb, and coa. (C) Expression of RNAIII, agrA, and saeR. Bars represent mean values from three or more independent experiments. Error bars indicate standard deviations. ***, P < 0.001; **, P < 0.01; *, P < 0.05.