Rhizobium fredii Scholla and Elkan 1984 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales family Rhizobiaceae genus Sinorhizobium species Sinorhizobium fredii Name Homonyms Rhizobium fredii Rhizobium fredii Scholla and Elkan 1984