PenicillinasePenicillin GStaphylococcusBacillusPenicillin ResistancePenicillinsStaphylococcus PhagesNeisseria gonorrhoeaeExtrachromosomal InheritanceCephaloridineGenetics, MicrobialGonorrheaBacillus cereusProtoplastsCloxacillinbeta-LactamasesAmpicillinMethicillinEnzyme InductionSpectinomycinPenicillanic AcidPharmacologyCephalosporinaseMercuryTetracyclineAzaguanineOxacillinCephalosporinsDrug Resistance, MicrobialPlasmidsTransduction, GeneticClavulanic AcidsMicrobial Sensitivity TestsStaphylococcus aureusGenes, RegulatorChromosomes, BacterialCulture MediaAnti-Bacterial AgentsOleandomycinEscherichia colibeta-LactamsResearchCadmiumMetabolismPimelic AcidsR FactorsAmoxicillin-Potassium Clavulanate CombinationErythromycin