The passive yet successful way of planktonic life: genomic and experimental analysis of the ecology of a free-living polynucleobacter population.
- Martin W Hahn
- Thomas Scheuerl
- Jitka Jezberová
- Ulrike Koll
- Jan Jezbera
- Karel Šimek
- Claudia Vannini
- Giulio Petroni
- Qinglong L Wu
DOIAbstract
The bacterial taxon Polynucleobacter necessarius subspecies asymbioticus represents a group of planktonic freshwater bacteria with cosmopolitan and ubiquitous distribution in standing freshwater habitats. These bacteria comprise <1% to 70% (on average about 20%) of total bacterioplankton cells in various freshwater habitats. The ubiquity of this taxon was recently explained by intra-taxon ecological diversification, i.e. specialization of lineages to specific environmental conditions; however, details on specific adaptations are not known. Here we investigated by means of genomic and experimental analyses the ecological adaptation of a persistent population dwelling in a small acidic pond.The investigated population (F10 lineage) contribute...
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