brucella microti brucella microti brucella microti is a species of bacteria first isolated from the common vole, microtus arvalis. its genome has been sequenced. it is gram-negative, non-motile, non-spore-forming, and coccoid, with the type strain ccm 4915t (=bccn 07-01t =capm 6434t). it is pathogenic. brucella microti scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: brucellaceae genus: brucella species: b. microtischolz et al. 2008 binomial name brucella microti