polaromonas polaromonas polaromonas is a genus of gram-negative bacteria from the family comamonadaceae. polaromonas species are psychrophiles. polaromonas scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: polaromonas type species polaromonas vacuolata species polaromonas aquatica polaromonas cryoconiti polaromonas glacialis polaromonas hydrogenivorans polaromonas jejuensis polaromonas naphthalenivorans polaromonas vacuolata