Polynucleobacter asymbioticus | |
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Scientific classification | |
Domain: | |
Phylum: | |
Class: | |
Order: | |
Family: | |
Genus: | |
Species: | P. asymbioticus
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Binomial name | |
Polynucleobacter asymbioticus Hahn et al. 2016
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Type strain | |
QLW-P1DMWA-1, DSM 18221, CIP 109841 [1] | |
Synonyms | |
Polynucleobacter necessarius subsp. asymbioticus, Polynucleobacter sp. QLW-P1DMWA-1, strain QLW-P1DMWA-1 |
Polynucleobacter asymbioticus is an aerobic, catalase- and oxidase-positive, chemo- organotrophic, nonmotile, free-living bacterium of the genus Polynucleobacter. The type strain was isolated from a small pond located in the Austrian Alps in the area of Salzburg [2] and described as a new subspecies of Polynucleobacter necessarius in 2009. [3] The classification of the type strain was hampered by the fact that its closest described relative represented obligate endosymbionts, i.e. P. necessarius, not available as a pure culture suitable for standard tests (DNA-DNA hybridization experiments) for delineation of prokaryotic species. Therefore, the strain was preliminarily placed in the subspecies P. necessarius subsp. asymbioticus. Later sequencing of the genome of the type strain [4] revealed that the strain represented a novel species within the genus Polynucleobacter. Therefore, its taxonomic rank was lifted from the subspecies to the species level. [5] Strains of P. asymbioticus dwell as planktonic organisms in acidic, humic-rich freshwater systems. [6] Comparative genome analyses revealed that P. asymbioticus represents an atypical member of the family Burkholderiaceae regarding its small genome size and its passive lifestyle. [7] A recent study used a collection of 37 P. asymbioticus strains isolated from various ponds located in a larger region of the Austrian Alps to gain insights in the evolution of Polynucleobacter bacteria. [8]
Polynucleobacter asymbioticus | |
---|---|
Scientific classification | |
Domain: | |
Phylum: | |
Class: | |
Order: | |
Family: | |
Genus: | |
Species: | P. asymbioticus
|
Binomial name | |
Polynucleobacter asymbioticus Hahn et al. 2016
| |
Type strain | |
QLW-P1DMWA-1, DSM 18221, CIP 109841 [1] | |
Synonyms | |
Polynucleobacter necessarius subsp. asymbioticus, Polynucleobacter sp. QLW-P1DMWA-1, strain QLW-P1DMWA-1 |
Polynucleobacter asymbioticus is an aerobic, catalase- and oxidase-positive, chemo- organotrophic, nonmotile, free-living bacterium of the genus Polynucleobacter. The type strain was isolated from a small pond located in the Austrian Alps in the area of Salzburg [2] and described as a new subspecies of Polynucleobacter necessarius in 2009. [3] The classification of the type strain was hampered by the fact that its closest described relative represented obligate endosymbionts, i.e. P. necessarius, not available as a pure culture suitable for standard tests (DNA-DNA hybridization experiments) for delineation of prokaryotic species. Therefore, the strain was preliminarily placed in the subspecies P. necessarius subsp. asymbioticus. Later sequencing of the genome of the type strain [4] revealed that the strain represented a novel species within the genus Polynucleobacter. Therefore, its taxonomic rank was lifted from the subspecies to the species level. [5] Strains of P. asymbioticus dwell as planktonic organisms in acidic, humic-rich freshwater systems. [6] Comparative genome analyses revealed that P. asymbioticus represents an atypical member of the family Burkholderiaceae regarding its small genome size and its passive lifestyle. [7] A recent study used a collection of 37 P. asymbioticus strains isolated from various ponds located in a larger region of the Austrian Alps to gain insights in the evolution of Polynucleobacter bacteria. [8]