propionivibrio propionivibrio propionivibrio is a genus of gram-negative, chemoorganotrophic, non-spore-forming bacteria from the family of rhodocyclaceae which belongs to the class of betaproteobacteria. propionivibrio scientific classification missing taxonomy template (fix): propionivibrio type species propionivibrio dicarboxylicus species propionivibrio dicarboxylicus propionivibrio limicola propionivibrio pelophilus synonyms propionibacter meijer et al. 1999