BradyrhizobiumRhizobiaceaeNitrogen FixationSymbiosisSoybeansRoot Nodules, PlantPlant Root NodulationFabaceaeRhizobiumGenes, BacterialBacterial ProteinsAcaciaMolecular Sequence DataPlant RootsDNA, BacterialGene Expression Regulation, BacterialNitrogenasePhylogenyLespedezaPachyrhizusRNA, Ribosomal, 16SNitrogen IsotopesNitrogen CompoundsSequence Analysis, DNAHydrogenaseNitrogen CycleBlood Urea NitrogenNitrogen DioxideDNA, Ribosomal SpacerSinorhizobiumAfipiaBase SequencePlants, MedicinalSoil MicrobiologyReactive Nitrogen SpeciesAmino Acid SequenceSinorhizobium frediiDNA, RibosomalNitratesAlphaproteobacteriaGenetic Complementation TestLupinusOxidoreductases2,4-Dichlorophenoxyacetic AcidGlutamate-Ammonia LigaseHemeproteinsCytisusNitrate ReductaseRhodobacterMutationBradyrhizobiaceaeNitrogen OxidesAerobiosisRhizobium leguminosarumCanthaxanthinRNA, BacterialPII Nitrogen Regulatory Proteins