Isolation by the replica plating technique of the mutants of Staph. aureus, partially resistant to low concentrations of penicillin.
D008837:Micrococcus; D010406:Penicillins / Q000494:pharmacology*; D013211:Staphylococcus aureus
D010406:Penicillins
MICROCOCCUS PYOGENES; PENICILLIN/effects