puniceibacterium antarcticum puniceibacterium antarcticum puniceibacterium antarcticum is a gram-negative, rod-shaped and aerobic bacterium from the genus of puniceibacterium which has been isolated from seawater from the antarctic. puniceibacterium antarcticum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: puniceibacterium species: p. antarcticum binomial name puniceibacterium antarcticumliu et al. 2014 type strain kacc 16875. cctcc ab 2013147 synonyms phaeobacter antarcticus