pseudomonas antarctica pseudomonas antarctica pseudomonas antarctica is a psychrophilic, gram-negative, motile with a polar flagellum, rod-shaped bacterium isolated from cyanobacterial mats in antarctica. pseudomonas antarctica scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: pseudomonas species: p. antarctica binomial name pseudomonas antarcticareddy, et al., 2004 type strain ccug 49625 dsm 15318 mtcc 4992