RNA, Ribosomal, 16SDNA, RibosomalPhylogenyRNA, BacterialGenes, rRNARNA, RibosomalMolecular Sequence DataDNA, BacterialBase SequenceSequence Analysis, DNARNA, Ribosomal, 23SBase CompositionRNA, Ribosomal, 18SBacteriaSequence Homology, Nucleic AcidRNARNA, Ribosomal, 5SSpecies SpecificityRNA, Ribosomal, 28SNucleic Acid HybridizationSoil MicrobiologyWater MicrobiologyNucleic Acid ConformationBacterial Typing TechniquesPolymerase Chain ReactionEubacteriumRNA, Small InterferingRNA, ViralSeawaterGram-Negative Anaerobic BacteriaCytophagarRNA OperonFresh WaterAlphaproteobacteriaSequence Analysis, RNAOligonucleotide ProbesRNA, ArchaealGram-Negative Chemolithotrophic BacteriaArchaeaRNA SplicingRNA EditingCrotonatesGram-Positive Asporogenous RodsBetaproteobacteriaFatty AcidsActinomycetalesGammaproteobacteriaThiotrichaceaeCluster AnalysisRNA PrecursorsClostridiumGeologic SedimentsMycobacteriumActinobacteriaSymbiosisBacteria, AerobicGenes, BacterialDNA, ArchaealDNA PrimersPhenotypeRNA, FungalMetagenomeProteobacteriaHelicobacterSewagePolymorphism, Restriction Fragment LengthFlavobacteriumRNA Processing, Post-TranscriptionalClassificationMycoplasmaEcosystemBiodiversityGenetic VariationBacteria, AnaerobicGram-Negative Aerobic BacteriaDNA-Directed RNA PolymerasesEnvironmental MicrobiologyMolluscaBiological EvolutionBiodegradation, EnvironmentalSequence AlignmentDNA, Ribosomal SpacerDNA ProbesRNA, ProtozoanRibosomesMetagenomicsRNA, MessengerEscherichia coliGram-Positive BacteriaSulfur-Reducing BacteriaIn Situ Hybridization, FluorescenceTreponemaWaste Disposal, FluidRNA InterferenceNitrosomonasRNA VirusesBacillusRNA, Ribosomal, 5.8SStichopusIndustrial Waste