in the 5 staphylococcal strains , mutants were generally selected at a frequency of 10 ( -9 ) to 10 ( -10 ) ( ranging from 4.10 ( -8 ) to 9.10 ( -11 ) on plates containing 50 mg/l of the following non-inducer mls : spiramycin , josamycin , midecamycin , miocamycin , lincomycin , clindamycin , and pristinamycin factor i ( pi ) .
C0205997
mls
C0205996
pristinamycin