aquabacterium commune aquabacterium commune aquabacterium commune is a gram-negative, catalase-negative bacterium of the genus aquabacterium in the family comamonadaceae, which was isolated with aquabacterium citratiphilum and aquabacterium parvum from biofilms of drinking water in berlin. aquabacterium commune has got a single polar flagellum and its colonies are transparent. aquabacterium commune scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: aquabacterium species: a. commune binomial name aquabacterium communekalmbach et al. 1999, sp. nov. type strain atcc baa-209, b8, ccm 4957, ccug 48318, cip 106984, dsm 11901, ncimb 13782, strain b8