brucella grignonensis brucella grignonensis brucella grignonensis is a bacterium. its type strain is oga9at (= lmg 18954t =dsm 13338t). brucella grignonensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: brucellaceae genus: brucella species: b. grignonensis binomial name brucella grignonensis(lebuhn et al. 2000) hördt et al. 2020 synonyms ochrobactrum grignonense lebuhn et al. 2000