title: Selection and propagation of antibiotic-resistant mutants of Acholeplasma by the addition of fresh culture medium containing antibiotics and protease to the medium cultured with Acholeplasma.
mesh_terms: D000128:Acholeplasma laidlawii / Q000187:drug effects / Q000254:growth & development* / Q000302:isolation & purification; D004352:Drug Resistance, Microbial; D004917:Erythromycin / Q000494:pharmacology*; D011402:Pronase / Q000494:pharmacology*; D014357:Trypsin / Q000494:pharmacology*
chemical_list: D004917:Erythromycin; D014357:Trypsin; D011402:Pronase