bradyrhizobium diazoefficiens bradyrhizobium diazoefficiens bradyrhizobium diazoefficiens is a species of bacteria from the genus of bradyrhizobium. bradyrhizobium diazoefficiens bradyrhizobium diazoefficiens strain usda 110 on an agar plate scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: nitrobacteraceae genus: bradyrhizobium species: b. diazoefficiens binomial name bradyrhizobium diazoefficiensdelamuta et al. 2013 type strain 3i1b110, accc 15034, bcrc 13528, ccrc 13528, cct 4249, cnpso 46, iam 13628, ifo 14792, jcm 10833, nbrc 14792, niftal 102, nrrl b-4361, nrrl b-4450, r-12974, semia 5032, tal 102, tistr 339 , usda 110