pseudomonas psychrophila pseudomonas psychrophila pseudomonas psychrophila is a psychrophilic, gram-negative, aerobic, straight rod bacterium with polar flagella. the type strain is jcm 10889. pseudomonas psychrophila scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: pseudomonas species: p. psychrophila binomial name pseudomonas psychrophilayumoto, et al. 2001