BuchneraEnterobacteriaceaeEnterobacteriaceae InfectionsAphidsSymbiosisbeta-LactamasesSerratiaMicrobial Sensitivity TestsAnti-Bacterial Agentsbeta-Lactam ResistanceEnterobacterProteusCarbapenemsBacteriological TechniquesBacteriaKlebsiellaEscherichiaKlebsiella pneumoniaebeta-LactamsCephalosporinsGram-Negative BacteriaDNA, BacterialEscherichia coliGenome, BacterialBacterial ProteinsCitrobacterAnthranilate SynthaseGenes, BacterialPhylogenyMolecular Sequence DataEvolution, MolecularDrug Resistance, BacterialLuteovirusDrug Resistance, Multiple, BacterialSequence Analysis, DNADrug Resistance, MicrobialSalmonellaPlasmidsEnterobacter cloacaeKlebsiella InfectionsGammaproteobacteriaSerratia marcescensGram-Negative Bacterial InfectionsVibrionaceaeEvaluation Studies as TopicAztreonamCefotaximeCeftazidimeProteus mirabilisKlebsiella oxytocaProvidenciaAmino Acids, EssentialChaperonin 60ShigellaGene Transfer, HorizontalCephalosporin ResistanceGenome SizeCulture MediaSpecies SpecificityKluyveraPseudomonadaceaeCitrobacter freundiiFecesPseudomonas aeruginosa