dechloromonas denitrificans dechloromonas denitrificans dechloromonas denitrificans is a gram negative, n2o-producing motile bacterium with a polar flagellum from the genus of dechloromonas which was isolated from the earthworm aporrectodea caliginosa. colonies of dechloromonas denitrificans are yellowish colored. dechloromonas denitrificans scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: rhodocyclales family: rhodocyclaceae genus: dechloromonas species: d. denitrificans binomial name dechloromonas denitrificanshorn et al. 2005 type strain atcc baa-841, cip 109443, dsm 15892, ed1