psychrobacter pasteurii psychrobacter pasteurii psychrobacter pasteurii is a gram-negative, non-spore-forming and on-motile bacterium of the genus psychrobacter. psychrobacter pasteurii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: psychrobacter species: p. pasteurii binomial name psychrobacter pasteuriihurtado et al. 2017 type strain cect 9184, cip 110853, a1019