title: Transformability of group H streptococcus challis. I. Diminution and acquisition of transformability in alpha-hemolytic variants of group H streptococcus challis.
mesh_terms: D014644:Genetic Variation; D008937:Mitomycins / Q000187:drug effects; D010403:Penicillin Resistance; D010406:Penicillins / Q000187:drug effects; D013291:Streptococcus / Q000302:isolation & purification / Q000494:pharmacology; D013307:Streptomycin / Q000187:drug effects; D013752:Tetracycline / Q000187:drug effects; D014170:Transformation, Genetic
chemical_list: D008937:Mitomycins; D010406:Penicillins; D013752:Tetracycline; D013307:Streptomycin