Bacteria, AnaerobicBacteriaGram-Negative Anaerobic BacteriaBacteria, AerobicAnaerobiosisGram-Positive BacteriaFusobacteriumGram-Negative BacteriaPeptostreptococcusEubacteriumRNA, Ribosomal, 16SBacteroidesPeptococcusClostridiumPhylogenyDNA, RibosomalDNA, BacterialMolecular Sequence DataPeptococcaceaeBacteroides fragilisBacteroidaceaeSequence Analysis, DNABacteriological TechniquesBacterial InfectionsAnti-Bacterial AgentsCulture MediaBacterial ProteinsMicrobial Sensitivity TestsVeillonellaWater MicrobiologyBase CompositionSpecies SpecificityGenes, rRNAEscherichia coliPropionibacteriumPrevotella melaninogenicaRNA, BacterialFermentationAerobiosisCefotetanGram-Negative Aerobic BacteriaColony Count, MicrobialBacterial Typing TechniquesSeawaterBacterial Physiological PhenomenaClostridium perfringensSoil MicrobiologyPrevotellaGenes, BacterialBiodegradation, EnvironmentalCefoxitinPorphyromonasMetronidazoleGeologic SedimentsCephamycinsEnterobacteriaceaeBacteroides InfectionsBase SequenceFresh WaterFatty AcidsGenome, BacterialGene Expression Regulation, BacterialSuppurationEsculinAmino Acid SequenceSulfur-Reducing BacteriaClindamycinGram-Negative Facultatively Anaerobic RodsFecesPseudomonasStreptococcusHydrogen-Ion ConcentrationDeltaproteobacteriaActinomycetalesClostridium tetaniBacterial AdhesionActinomycetaceaeAnti-Infective AgentsCecumOxidation-ReductionDrug Resistance, MicrobialIntestinesVeillonellaceaeDesulfovibrioSymbiosisGammaproteobacteriaLactamsEvaluation Studies as TopicFungiBifidobacteriumAgarAbscessTemperatureFusobacterium necrophorumCarbohydrate MetabolismPolymerase Chain ReactionPropionibacteriaceaeMouthNucleic Acid HybridizationPropionibacterium acnes