Fig. 2.

Varying response to LL-37 in different S. pyogenes strains. Turbidity measurements in bacterial cultures in the presence of different concentrations of LL-37 were done with the Bioscreen C instrument. OD values of duplicate cultures were determined every 15 min for a total of 10 h. OD curves show measurements over time in cultures of S. pyogenes strains of different types, i.e. M1 strains 8157 (a) and 90-226 (b), M3 strains 5626 (c) and 8003 (d) and M49 strains 581 (e) and 591 (f). The mean values of three separate experiments are shown.