BacteriaGram-Negative BacteriaGram-Positive BacteriaBacteria, AnaerobicRNA, Ribosomal, 16SBacteria, AerobicDNA, BacterialMolecular Sequence DataBacterial ProteinsPhylogenyEscherichia coliDNA, RibosomalSequence Analysis, DNAWater MicrobiologyAnti-Bacterial AgentsGram-Negative Aerobic BacteriaGram-Negative Anaerobic BacteriaBacterial Physiological PhenomenaSoil MicrobiologyGenes, BacterialSeawaterSulfur-Reducing BacteriaColony Count, MicrobialRNA, BacterialGene Expression Regulation, BacterialCulture MediaAnaerobiosisGenome, BacterialSymbiosisGenes, rRNABase CompositionBiodegradation, EnvironmentalAmino Acid SequenceSpecies SpecificityBacterial AdhesionEnterobacteriaceaeBase SequencePseudomonasFresh WaterMicrobial Sensitivity TestsBacteriological TechniquesBacterial InfectionsGammaproteobacteriaBiofilmsGeologic SedimentsBacterial Typing TechniquesFermentationProteobacteriaBacteroidesAerobiosisPseudomonas aeruginosaStaphylococcus aureusMicrobial ViabilityBetaproteobacteriaStreptococcusVibrioVirulencePolymerase Chain ReactionCytophagaTemperatureHydrogen-Ion ConcentrationPlasmidsMutationFatty AcidsBacillusCloning, MolecularOxidation-ReductionFecesSalmonella typhimuriumGram-Negative Bacterial InfectionsArchaeaFungiSequence Homology, Amino AcidAntibiosisClostridiumEubacteriumFood MicrobiologyDrug Resistance, BacterialBacillus subtilisIntestinesEcosystemMouthSequence AlignmentBacterial LoadGastrointestinal TractBacterial Outer Membrane ProteinsTime FactorsActinobacteriaPhagocytosisListeria monocytogenesDrug Resistance, MicrobialGene Transfer, HorizontalCorynebacteriumPhenotypeAir MicrobiologyDeltaproteobacteriaGram-Negative Aerobic Rods and CocciAnti-Infective AgentsProbioticsCell Wall