title: Regulation by the precompetent cell culture of the appearance of spontaneous and induced competence.
mesh_terms: D002478:Cells, Cultured; D004352:Drug Resistance, Microbial; D013104:Spheroplasts / Q000187:drug effects; D013296:Streptococcus pneumoniae / Q000187:drug effects*; D013307:Streptomycin / Q000494:pharmacology; D013424:Sulfanilamides / Q000494:pharmacology; D013997:Time Factors; D014170:Transformation, Genetic
chemical_list: D013424:Sulfanilamides; D013307:Streptomycin