Rhizobium meliloti Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales family Rhizobiaceae genus Sinorhizobium species Sinorhizobium meliloti Name Homonyms Rhizobium meliloti Rhizobium meliloti Dangeard 1926 (Approved Lists 1980)