polynucleobacter wuianus polynucleobacter wuianus polynucleobacter wuianus is an aerobic, chemo-organotrophic, catalase- and oxidase-positive, free-living bacterium of the genus polynucleobacter, isolated from a small pond located in the austrian alps in the area of salzburg. bacteria affiliated with this species represent planktonic bacteria (bacterioplankton) dwelling in acidic freshwater systems. the species was named after the chinese limnologist and microbiologist qinglong l. wu (chinese academy of sciences) who isolated the type strain. polynucleobacter wuianus scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: polynucleobacter species: p. wuianus binomial name polynucleobacter wuianushahn et al. 2017 type strain qlw-p1fat50c-4 synonyms p. necessarius subsp. asymbioticus, polynucleobacter sp. qlw-p1fat50c-4