marinobacter guineae marinobacter guineae marinobacter guineae is a gram-negative, aerobic and moderately halophilic bacterium from the genus of marinobacter which has been isolated from the south shetland islands from the antarctica. marinobacter guineae scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacter species: m. guineaemontes et al. 2008 binomial name marinobacter guineae type strain cect 7243, lmg 24048, m3b