Ampicillin ResistanceAmpicillinR FactorsPlasmidsPenicillin ResistanceConjugation, GeneticEscherichia coliDNA, BacterialDrug Resistance, MicrobialHaemophilus influenzaeGenes, BacterialAnti-Bacterial AgentsEnterococcus faeciumbeta-LactamasesMicrobial Sensitivity TestsDrug Resistance, BacterialPenicillinaseChromosomes, BacterialDNA Transposable ElementsExtrachromosomal InheritanceBacterial ProteinsChloramphenicol ResistancePenicillinsPenicillin-Binding ProteinsPlant TumorsBase SequenceTransformation, BacterialTetracyclineMolecular Sequence DataTransformation, GeneticMutationShigella sonneiDrug Resistance, Multiple, BacterialDrug ResistanceHaemophilus ducreyiF FactorHaemophilus InfectionsTrimethoprimGenesCloning, MolecularEnterobacteriaceaePenicillin GMuramoylpentapeptide CarboxypeptidaseStreptomycinSulbactamNucleic Acid HybridizationDNA Restriction EnzymesPeptidyl TransferasesSalmonellaVirulenceGram-Positive Bacterial InfectionsHexosyltransferasesSerine-Type D-Ala-D-Ala CarboxypeptidaseDNA, CircularRecombination, GeneticDrug Resistance, MultipleDrug Resistance, NeoplasmPivampicillinFecesDNA, RecombinantGene Expression Regulation, BacterialRhizobiumBacteriocinsCulture MediaSequence Analysis, DNADisease ResistancePolymerase Chain ReactionVascular ResistanceChloramphenicolGenetic VectorsOperonVirulence FactorsAmino Acid SequenceDrug Resistance, ViralEnterococcus faecalisTetracycline ResistanceGentamicinsbeta-Lactam ResistanceTranscription, GeneticPhylogenybeta-LactamsKanamycinSulfamethoxazoleCephalosporinsDysentery, BacillaryPenicillanic AcidErythromycinShigellaCloxacillinPhenotypePlant DiseasesAnti-Infective AgentsCarbenicillinAmoxicillinSalmonella InfectionsCephalexinKlebsiellaEscherichia coli InfectionsElectrophoresis, Gel, Pulsed-FieldDrug Resistance, Fungal