marinobacter antarcticus marinobacter antarcticus marinobacter antarcticus is a gram-negative, aerobic, halotolerant, rod-shaped and motile bacterium from the genus of marinobacter which has been isolated from antarctic sediments. marinobacter antarcticus scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacter species: m. antarcticusliu et al. 2012 binomial name marinobacter antarcticus type strain cgmcc 1.10835, kctc 23684, zs2-30