ottowia beijingensis ottowia beijingensis ottowia beijingensis is a gram-negative bacterium from the genus ottowia. it has been isolated from activated sludge from beijing in china. ottowia beijingensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: ottowia species: ottowia beijingensis binomial name o. beijingensiscao et al. 2014 type strain cgmcc 1.12324, lmg 27179, mccc 1a01410, strain gcs-an-3