Drug Resistance, MicrobialDrug ResistanceDrug Resistance, BacterialDrug Resistance, NeoplasmAnti-Bacterial AgentsDrug Resistance, MultipleMicrobial Sensitivity TestsDisease ResistanceVascular ResistanceMutationSequence Analysis, DNADrug Resistance, ViralDrug Resistance, Multiple, BacterialEscherichia coliGenes, BacterialSpecies SpecificityDNA, BacterialMolecular Sequence DataPhenotypePenicillin ResistancePlasmidsTetracycline ResistanceMice, Inbred StrainsBacterial ProteinsPlant DiseasesVirulenceRNA, Ribosomal, 16SBacterial Typing TechniquesAmino Acid SequencePolymerase Chain ReactionGenotypeDNA, RibosomalDrug Resistance, FungalCulture MediaAirway ResistanceR FactorsConjugation, Geneticbeta-Lactam ResistanceSerotypingGene Expression Regulation, BacterialStaphylococcus aureusBase SequenceCloning, MolecularTetracyclineGenetic VariationImmunity, InnateResistance TrainingDNA Transposable ElementsAmpicillin ResistanceElectrophoresis, Gel, Pulsed-FieldStreptomycinMethicillin ResistanceGenome, BacterialChloramphenicol ResistanceErythromycinNucleic Acid HybridizationBase Compositionbeta-LactamasesPseudomonas aeruginosaTime FactorsAnti-Infective AgentsRNA, BacterialDNA FingerprintingGenes, rRNAEscherichia coli InfectionsPhylogenyP-GlycoproteinChromosome MappingDNA PrimersSoil MicrobiologyCluster AnalysisVancomycin ResistanceMice, Inbred C57BLStaphylococcusGene DeletionPolymorphism, Restriction Fragment LengthCephalosporin ResistancePseudomonasEscherichia coli ProteinsMycobacterium tuberculosisMacrolidesBacterial Outer Membrane ProteinsVirulence FactorsCell LineEnterobacteriaceaeDNA GyraseFatty AcidsGenetic Complementation TestCrosses, GeneticBacteriaStreptococcus pneumoniaeFecesTransformation, BacterialTemperatureStaphylococcal InfectionsFluoroquinolonesSalmonella typhimuriumSequence Homology, Amino AcidColony Count, MicrobialMice, Inbred BALB C