brevundimonas denitrificans brevundimonas denitrificans brevundimonas denitrificans is a gram-negative, aerobic, heterotrophic and denitrifying bacterium from the genus of brevundimonas which has been isolated from deep seafloor sediments from japan. brevundimonas denitrificans scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: caulobacterales family: caulobacteraceae genus: brevundimonas species: b. denitrificans binomial name brevundimonas denitrificanstsubouchi et al. 2014 type strain cect 8537, nbrc 110107, tar-002