rhodoferax antarcticus rhodoferax antarcticus rhodoferax antarcticus is a psychrophilic, phototrophic, nonsulfur, highly motile bacterium from the genus rhodoferax, which was isolated from an antarctic microbial mat in ross island. rhodoferax antarcticus scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: rhodoferax species: r. antarcticus binomial name rhodoferax antarcticusmadigan et al. 2001 type strain ant.br = atcc 700587