Fig. 3
From: Impact of efflux in the development of multidrug resistance phenotypes in Staphylococcus aureus
Expression levels of EP and regulator genes of the strains in study during exposure to EtBr. Gene expression was measured in the presence of EtBr at half MIC (orange) and at the MIC (blue) relatively to the drug-free growth condition. The results are presented as the mean and standard deviation of at least two independent assays performed with total RNA. Overexpression was considered for values superior to 2 (cut-off value represented by the green dashed line)