BacteriaRNA, Ribosomal, 16SWater MicrobiologyColony Count, MicrobialDNA, BacterialWaste Disposal, FluidDNA, RibosomalSoil MicrobiologySequence Analysis, DNAMolecular Dynamics SimulationPhylogenyFresh WaterEcosystemSewagePopulation DynamicsBiodiversityBacterial Physiological PhenomenaMolecular Sequence DataProteobacteriaBiotaMetagenomeEscherichia coliDenaturing Gradient Gel ElectrophoresisSeawaterBacteria, AerobicComputer SimulationBiodegradation, EnvironmentalRumenRadioactive WastePolymerase Chain ReactionFecesBacteriological TechniquesBiofilmsCulture MediaModels, BiologicalHalitosisAnaerobiosisPlanktonAnti-Bacterial AgentsBifidobacteriumRNA, BacterialWaste ManagementGenes, rRNAEnterobacteriaceaeMicrobiotaGastrointestinal TractEubacteriumGenetic VariationCecumBacteroidesNonlinear DynamicsLactobacillusFatty Acids, VolatileBioreactorsCluster AnalysisFermentationBacteria, AnaerobicFood MicrobiologyMicropore FiltersWater PollutionMicrobial ConsortiaPolymorphism, Restriction Fragment LengthDNA FingerprintingBacterial LoadBacterial ProteinsRhizosphereGram-Negative Chemolithotrophic BacteriaRefrigerationIntestine, LargeEcologyGenes, BacterialBacteroidaceaeDrug Resistance, BacterialMethaneModels, TheoreticalTime FactorsEnvironmental MicrobiologyMicrobial ViabilityPseudomonas fluorescensSelection, GeneticGeologic SedimentsModels, MolecularTemperaturePseudomonasMutationMethylobacteriumSulfur-Reducing BacteriaPetroleumQuorum SensingGenome, BacterialPlant RootsElectrophoresisRiversIntestinesSalixWater PurificationNitrobacterGram-Negative BacteriaSoil PollutantsIn Situ Hybridization, Fluorescence