psychrobacter immobilis psychrobacter immobilis psychrobacter immobilis is a gram-negative, oxidase- and catalase-positive, psychrotrophic, nonmotile bacterium of the genus psychrobacter which was isolated from cheese, fish, and processed meat and poultry products. psychrobacter immobilis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: psychrobacter species: p. immobilis binomial name psychrobacter immobilisjuni and heym 1986 type strain strain a351, nbrc 15733, lmg 7203, jcm 20442, ifo 15733, dsm 7229, cip 102557, ccug 9708, atcc 43116