SoilSoil MicrobiologyBacteriaSoil PollutantsRNA, Ribosomal, 16SBacterial ProteinsDNA, BacterialMolecular Sequence DataGram-Negative BacteriaBiodegradation, EnvironmentalGram-Positive BacteriaPhylogenySinorhizobium melilotiDNA, RibosomalSequence Analysis, DNABacteria, AnaerobicPseudomonasSymbiosisGene Expression Regulation, BacterialMyxococcus xanthusBacterial Physiological PhenomenaGenes, BacterialPseudomonas putidaPseudomonas fluorescensCulture MediaPlant RootsRNA, BacterialNitrogen FixationEscherichia coliGenome, BacterialRhizobiumBacteria, AerobicColony Count, MicrobialGenes, rRNAGram-Negative Aerobic Rods and CocciTreesEcosystemOligochaetaLightningBetaproteobacteriaPseudomonas mendocinaCarbonArthrobacterActinomycetalesBacillus subtilisStreptomyces coelicolorBase SequenceBurkholderiaSoil Pollutants, RadioactiveAnti-Bacterial AgentsWater MicrobiologyNitrogenRhizobiaceaeAmino Acid SequenceCellvibrioFungiSpecies SpecificityAcinetobacterAerobiosisMedicago sativaBacteriological TechniquesSinorhizobiumBacterial Typing TechniquesOxalobacteraceaeAldrinPolymerase Chain ReactionGram-Negative Aerobic BacteriaBacillusGene Transfer, HorizontalPlant Root NodulationFabaceaeSphingomonasSiberiaBase CompositionRoot Nodules, PlantPlasmidsGram-Negative Anaerobic BacteriaHydrocarbons, AromaticFrankiaHydrogen-Ion ConcentrationTemperatureFatty AcidsHerbicidesCloning, MolecularCorynebacterium glutamicumHemolytic AgentsFertilizersBiofilmsOperonLaccariaStreptomycesSeawaterAnaerobiosisPolysaccharides, BacterialSulfur-Reducing BacteriaAcetyleneBiodiversityMutationBradyrhizobiumSpores, Bacterial