Rhizobium japonicum Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales family Nitrobacteraceae genus Bradyrhizobium species Bradyrhizobium japonicum Name Homonyms Rhizobium japonicum Rhizobium japonicum (Kirchner 1896) Buchanan 1926 (Approved Lists 1980)