brucella oryzae brucella oryzae brucella oryzae is an endophytic bacterial species. it is non-pigmented, motile and gram-negative, with type strain mtcc 4195t (=dsm 17471t). brucella oryzae scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: brucellaceae genus: brucella species: b. oryzae binomial name brucella oryzae(tripathi et al. 2006) hördt et al. 2020 synonyms ochrobactrum oryzae tripathi et al. 2006