PlasmidsNitrogen FixationConjugation, GeneticR FactorsBacteriocin PlasmidsNitrogen IsotopesNitrogen CompoundsNitrogen CycleBlood Urea NitrogenNitrogen DioxideDNA, BacterialEscherichia coliReactive Nitrogen SpeciesGenes, BacterialBase SequenceMolecular Sequence DataBacterial ProteinsNitrogen OxidesExtrachromosomal InheritanceCloning, MolecularPII Nitrogen Regulatory ProteinsDNA Restriction EnzymesTransformation, BacterialDNA Transposable ElementsDNA, RecombinantChromosomes, BacterialRepliconCarbonF FactorAmmoniaNitratesTransformation, GeneticFertilizersDrug Resistance, MicrobialMutationDNA ReplicationSequence Analysis, DNARestriction MappingQuaternary Ammonium CompoundsNucleic Acid HybridizationGlutamate-Ammonia LigaseRhizobiumGene Expression Regulation, BacterialGenetic VectorsAmino Acid SequenceRecombination, GeneticGene Transfer, HorizontalOperonPlant Tumor-Inducing PlasmidsDNA, CircularSymbiosisElectrophoresis, Agar GelReplication OriginSoilGenesTranscription, GeneticUreaGenetic Complementation TestNitrogen Mustard CompoundsNitrogenasePromoter Regions, GeneticKlebsiella pneumoniaeAmino AcidsTetracyclineAnti-Bacterial AgentsTransfectionEscherichia coli Proteinsbeta-LactamasesSpecies SpecificityCulture MediaBiomassPseudomonasBlotting, SouthernBacteriaPhylogenySequence Homology, Nucleic AcidChromosome MappingSaccharomyces cerevisiaeEnterobacteriaceaePlant RootsPolymerase Chain ReactionDNA, SuperhelicalGlutamineVirulenceGenes, RegulatorGenome, BacterialPhenotypePlant TumorsDNAPlant LeavesOpen Reading FramesColicinsAcetyleneDNA-Binding ProteinsTetracycline ResistanceSoil MicrobiologyKanamycinCell LineVaccines, DNADNA, Fungal