pelagibacterium halotolerans pelagibacterium halotolerans pelagibacterium halotolerans is a gram-negative, aerobic and motile bacterium from the genus of pelagibacterium which has been isolated from sea water from the east china sea in china. pelagibacterium halotolerans scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: devosiaceae genus: pelagibacterium species: p. halotolerans binomial name pelagibacterium halotoleransxu et al. 2011 type strain b2, cgmcc 1.7692, dsm 22347, jcm 15775