three classes of spontaneous multiple-aminoglycoside-resistant ( mar ) mutants of bacillus subtilis were isolated by plating on a low ( 1.2 mug/ml ) concentration of kanamycin sulfate and were found to be resistant also to low concentrations of paromomycin , neomycin and gentamicin .
C0002556
aminoglycoside
C0700540
kanamycin sulfate