polynucleobacter sphagniphilus polynucleobacter sphagniphilus polynucleobacter sphagniphilus is an aerobic, chemo-organotrophic, non-motile, free-living bacterium of the genus polynucleobacter. polynucleobacter sphagniphilus scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: polynucleobacter species: p. sphagniphilus binomial name polynucleobacter sphagniphilushahn et al. 2017 type strain mwh-weng1-1 =dsm 24018 =cip 111099 synonyms polynucleobacter necessarius subsp. asymbioticus mwh-weng1-1, polynucleobacter sp. mwh-weng1-1, strain mwh-weng1-1 the type strain was isolated from a small acidic bog pond located in austria. in contrast to other polynucleobacter type strains, for instance the type strain of p. duraquae, the strain inhabits and prefers acidic waters. the genome sequence of the strain was fully determined., the type strain dwells as a free-living, planktonic bacterium in the water column of a bog pond, thus is part of freshwater bacterioplankton.