roseovarius halotolerans roseovarius halotolerans roseovarius halotolerans is a gram-negative, aerobic and non-motile bacterium from the genus of roseovarius which has been isolated from deep seawater from the sea of japan in korea. roseovarius halotolerans scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: roseovarius species: r. halotolerans binomial name roseovarius halotoleransoh et al. 2009 type strain cect 8110, hj50, kctc 22224, lmg 24468, strain hj50