Polynucleobacter
| Polynucleobacter | |
|---|---|
| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Proteobacteria |
| Class: | Betaproteobacteria |
| Order: | Burkholderiales |
| Family: | Burkholderiaceae |
| Genus: |
Polynucleobacter Heckmann & Schmidt 1987, |
| Type species | |
|
Polynucleobacter necessarius |
|
| Species | |
|
P. acidiphobus Hahn et al. 2011 |
|
Heckmann & Schmidt 1987,
emend. Hahn et al. 2009,
emend. Hahn et al. 2016
P. acidiphobus Hahn et al. 2011
P. asymbioticus Hahn et al. 2016
P. cosmopolitanus Hahn et al. 2010
P. difficilis Hahn et al. 2012
P. duraquae Hahn et al. 2016
P. necessarius Heckm. & Sch. 1987
P. rarus Hahn et al. 2011
P. sinensis Hahn et al. 2016
P. wuianus Hahn et al. 2017
P. yangtzensis Hahn et al. 2016
Polynucleobacter is a genus of Proteobacteria, originally established by Heckmann and Schmidt (1987) to exclusively harbor obligate endosymbionts of ciliates belonging to the genus Euplotes.
Recently, nine new Polynucleobacter species were described, which all represent free-living (i.e. not host-associated) planktonic freshwater bacteria. Thus, the genus Polynucleobacter currently includes one species containing obligate endosymbionts of ciliates and nine species representing free-living planktonic strains. The type strains of the planktonic species were isolated from freshwater systems located in Austria, France, Armenia, United States and China.
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