Oligonucleotide ProbesBase SequenceMolecular Sequence DataPolymerase Chain ReactionNucleic Acid HybridizationDNA, RibosomalRNA, Ribosomal, 16SDNA ProbesOligonucleotidesDNABlotting, SouthernCloning, MolecularAmino Acid SequenceSequence Homology, Nucleic AcidDNA PrimersRNA, MessengerDNA, BacterialOligonucleotide Array Sequence AnalysisSpecies SpecificityMolecular Probe TechniquesSensitivity and SpecificitySequence Analysis, DNAAllelesPhylogenyIn Situ Hybridization, FluorescenceTranscription, GeneticMutationRNA, BacterialOligodeoxyribonucleotidesOligonucleotides, AntisenseDigoxigeninRNA ProbesMolecular ProbesGenes, BacterialFluorescent DyesRestriction MappingBacteriaRNA, Ribosomal, 18SIn Situ HybridizationGenesEscherichia coliRNA, RibosomalSewageRNA, Ribosomal, 23SBlotting, NorthernGene Expression ProfilingPlanktonNucleic Acid ProbesWater MicrobiologyCytophagaNucleic Acid ConformationSulfur-Reducing BacteriaGene LibraryRNAColony Count, MicrobialEnvironmental MicrobiologyGene ExpressionWaste Disposal, FluidOligoribonucleotidesNucleic Acid DenaturationSequence AlignmentPlasmidsFluoresceinDNA Restriction EnzymesFresh WaterGene Expression RegulationDNA, ComplementaryBetaproteobacteriaSequence Homology, Amino AcidEvaluation Studies as TopicPhosphorothioate OligonucleotidesBinding SitesGenetic VariationEcosystemOligodeoxyribonucleotides, AntisensePromoter Regions, GeneticCodonBase Pair MismatchDNA-Binding ProteinsCattleCarbocyaninesBacterial ProteinsCell LineMultigene FamilySeawaterReproducibility of ResultsGenotypeGene AmplificationNitrosomonasChromosome Mapping