Oxidation-ReductionClofibrateNitrate ReductaseNitratesFatty Acids, UnsaturatedNitrate ReductasesNitritesChloratesDenitrificationAnaerobiosisNitrite ReductasesNitrogen CompoundsVeillonellaNitrogenNitrogen IsotopesQuaternary Ammonium CompoundsNitrous OxideRNA, Ribosomal, 16SAerobiosisPeriplasmAmmoniaDNA, RibosomalNitrate Reductase (NADH)Geologic SedimentsSilver NitrateDNA, BacterialDesulfitobacteriumSoil MicrobiologyMolybdenumEpsilonproteobacteriaIron-Sulfur ProteinsPhylogenySequence Analysis, DNABacteriaMolecular Sequence DataBetaproteobacteriaFormatesBacteria, AnaerobicWater MicrobiologySeawaterElectron TransportBacterial Typing TechniquesDarknessPlant RootsBase CompositionNitrogen FixationOxygenGene Expression Regulation, BacterialBacterial ProteinsOxidoreductasesCulture MediaGenes, rRNAEscherichia coliBiodegradation, EnvironmentalNitrate Reductase (NAD(P)H)OperonEscherichia coli ProteinsGenes, BacterialFatty AcidsFermentationCarbohydrate MetabolismMutationAnion Transport ProteinsCarbon DioxideNucleic Acid HybridizationRNA, BacterialSodium ChlorideBacteriological TechniquesHydrogen-Ion ConcentrationSpecies SpecificityGalliumPhenotypeIsosorbide DinitrateNitroglycerinPotassium CompoundsPentaerythritol TetranitrateNitric OxideFertilizersBase SequenceNitric Acid