comamonas kerstersii comamonas kerstersii comamonas kerstersii is a gram-negative, oxidase- and catalase-positive, motile bacterium with multitrichous polar flagella from the genus comamonas and family comamonadaceae. c. kerstersii is a subgroup of comamonas terrigena, and has been linked to cases of perforated appendices. comamonas kerstersii scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: comamonas species: c. kerstersii binomial name comamonas kerstersiiwauters et al. 2003 type strain af61, afg1, caselitz af61, ccug 15333, cip 107987, dsm 16026, guh/ucl c079, lmg 3475