Figure 7.
Growth of Staphylococcus lugdunensisWT and its isogenic Δisd mutant using iron, hemoglobin or heme as a sole iron source. Growth of the Δisd-sir mutant was compared to that of WT strain HKU09-01 at 12-, 24-and 36-h timepoints in RPMIC containing FeSO4 (A) varying concentrations of human hemoglobin, (B) or varying concentrations of bovine hemin, (C) as the sole iron source. All data points represent average values for at least three independent biological replicates, and error bars represent standard deviation from the mean. Statistical significance was determined using the Student's unpaired t-test; *P < 0.05; **P < 0.01; ***P < 0.0001.