MoritellaGammaproteobacteriaProteobacteriaPhylogenyRNA, Ribosomal, 16SBacteriaDNA, RibosomalAlphaproteobacteriaMolecular Sequence DataBetaproteobacteriaDNA, BacterialSequence Analysis, DNAMetagenomeEpsilonproteobacteriaWater MicrobiologySeawaterSoil MicrobiologyRNA, BacterialActinobacteriaGenes, rRNAFusobacteriaRhodobacterNitrosomonasArchaeaBiodiversityBradyrhizobiaceaeGram-Negative Facultatively Anaerobic RodsBase SequenceGeologic SedimentsDeltaproteobacteriaSulfonium CompoundsBacteroidetesSewageCytophagaBiotaBacteria, AerobicEcosystemBacterial ProteinsMicrobiotaFresh WaterBiodegradation, EnvironmentalMetagenomicsGenes, BacterialGram-Negative BacteriaGram-Negative Aerobic BacteriaGenome, BacterialGamma RaysBase CompositionGram-Negative Aerobic Rods and CocciPlanktonGallionellaceaeThiotrichaceaeEnvironmental MicrobiologyPolymerase Chain ReactionSymbiosisGram-Negative Chemolithotrophic BacteriaAmino Acid SequenceGastrointestinal TractPseudomonadaceaeArctic RegionsAcidobacteriaRhizosphereDNA, ArchaealAzoarcusGene Transfer, HorizontalEvolution, MolecularFoot RotBioreactorsWaste Disposal, FluidSequence Homology, Nucleic AcidCaulobacterSulfur-Reducing BacteriaNitrogen FixationWaste ManagementOxidation-ReductionDenaturing Gradient Gel ElectrophoresisBacterial Physiological PhenomenaGene Expression Regulation, BacterialMarine BiologyAerobiosisOxidoreductasesDysbiosisAmmoniaSpecies SpecificityCrenarchaeotaCloning, MolecularMethylobacteriaceaeThiobacillusSulfur CompoundsCluster AnalysisCulture MediaPetroleumBacteriochlorophyllsFatty AcidsSequence AlignmentBurkholderiaMicrobial ConsortiaAnaerobiosisAntarctic RegionsAcyl-Butyrolactones