Bacteria, AerobicArchaeaBacteriaGram-Negative Aerobic BacteriaBacteria, AnaerobicAerobiosisRNA, Ribosomal, 16SPhylogenyDNA, RibosomalGram-Positive BacteriaGram-Negative BacteriaMolecular Sequence DataSoil MicrobiologyDNA, BacterialBase CompositionBiodegradation, EnvironmentalAnaerobiosisSequence Analysis, DNAArchaeal ProteinsGenes, ArchaealGenes, rRNASeawaterGeologic SedimentsWater MicrobiologyDNA, ArchaealGram-Negative Aerobic Rods and CocciRNA, ArchaealFatty AcidsBacteroides fragilisGenome, ArchaealBacterial Typing TechniquesBacterial InfectionsCulture MediaBacterial ProteinsSpecies SpecificityEnterobacteriaceaeColony Count, MicrobialEscherichia coliActinomycetalesPeptostreptococcusBacteriological TechniquesAnti-Bacterial AgentsCrenarchaeotaRNA, BacterialBacillusRhodobacteraceaePseudomonasGammaproteobacteriaBacteroidesSodium ChlorideSphingomonasMethaneBacteroides InfectionsGene Expression Regulation, ArchaealFungiHaloferax volcaniiBase SequenceAlphaproteobacteriaOxidation-ReductionMicrobial Sensitivity TestsMethanococcusSewageFood MicrobiologyTemperatureHydrogen-Ion ConcentrationMetronidazoleNucleic Acid HybridizationAmino Acid SequenceSulfolobusStaphylococcusPhenotypeFecesKoreaBacterial Physiological PhenomenaEuryarchaeotaMethanobacteriaceaeGenes, BacterialNitrificationSulfur-Reducing BacteriaGenome, BacterialQuinonesMethanosarcinaGram-Negative Anaerobic BacteriaSpecimen HandlingMethanobacteriumEvolution, MolecularMethanosarcinalesDesulfurococcaceaeAmmoniaOxygenSequence AlignmentHalobacterialesSequence Homology, Amino AcidGene Expression Regulation, BacterialHaloferaxPyrococcusSulfolobus acidocaldariusProteobacteriaChinaEukaryota