variovorax humicola variovorax humicola variovorax humicola is a gram-negative, non-spore-forming, rod-shaped and motile bacterium from the genus of variovorax which has been isolated from forest soil near the kyonggi university from suwon in korea. variovorax humicola scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: variovorax species: v. humicola binomial name variovorax humicolanguyen and kim 2016 type strain kacc 18501, nbrc 111520, uc10, uc38