novosphingobium marinum novosphingobium marinum novosphingobium marinum is a gram-negative, aerobic and short rod-shaped bacterium from the genus novosphingobium which has been isolated from sea water from the pacific ocean. novosphingobium marinum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: erythrobacteraceae genus: novosphingobium species: n. marinum binomial name novosphingobium marinumhuo et al. 2015 type strain la53