Sinorhizobium melilotiRhizobiumSinorhizobiumSinorhizobium frediiRhizobium leguminosarumMedicago sativaRhizobium etliNitrogen FixationBacteriaSymbiosisFabaceaePlant Root NodulationRhizobiaceaeRoot Nodules, PlantRhizobium tropiciBacterial ProteinsMedicagoMedicago truncatulaGenes, BacterialGene Expression Regulation, BacterialMolecular Sequence DataPlant RootsDNA, BacterialPlants, MedicinalPolysaccharides, BacterialRNA, Ribosomal, 16SBradyrhizobiumPhylogenyGram-Negative BacteriaSequence Analysis, DNAGram-Positive BacteriaPhaseolusSoil MicrobiologyBase SequencePlasmidsMutationMelilotusDNA, RibosomalGenome, BacterialBacteria, AnaerobicSoybeansEscherichia coliGenetic Complementation TestAmino Acid SequenceMutagenesis, InsertionalRNA, BacterialSpecies SpecificityAgrobacterium tumefaciensLuteolinDNA Transposable ElementsPhenotypeCloning, MolecularOperonSequence Homology, Amino AcidIndigoferaSesbaniaAcaciaAlphaproteobacteriaCulture Media4-ButyrolactoneMesorhizobiumBacteria, AerobicCosmidsBase CompositionPlantsQuorum SensingNitrogenaseLipopolysaccharidesGenes, rRNAProteobacteriaChromosomes, BacterialConjugation, GeneticNitrogenGlucansDicarboxylic Acid TransportersDicarboxylic AcidsGalactansCarbohydrate SequenceMultigene FamilySequence Homology, Nucleic AcidLipid AGram-Negative Aerobic BacteriaWater MicrobiologySequence AlignmentPeasAcyl-ButyrolactonesBacterial Typing TechniquesPlant ProteinsCarbonBetaineHydroxybutyratesRepliconSugar AcidsOpen Reading FramesMycorrhizaeSuccinic AcidArtificial Gene FusionAnti-Bacterial AgentsFlagellaPolymerase Chain Reaction