variovorax defluvii variovorax defluvii variovorax defluvii is a gram-negative, non-spore-forming, motile bacterium from the genus variovorax, which was isolated from the sewage in the geumho river in korea. variovorax defluvii scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: variovorax species: v. defluvii binomial name variovorax defluviijin et al. 2012 type strain 2c1-b, jcm 17804, kctc 12768