pseudorhizobium pelagicum pseudorhizobium pelagicum pseudorhizobium pelagicum is a species of gram-negative marine bacteria isolated from mediterranean sea. pseudorhizobium pelagicum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: rhizobiaceae genus: pseudorhizobium species: p. pelagicum binomial name pseudorhizobium pelagicumkimes et al. 2017 type strain cect 8629lmg 28314r1-200b4