Distribution of typical freshwater bacterial groups is associated with pH, temperature, and lake water retention time

Article Abstract:

The distribution of 15 typical freshwater bacterial groups in 15 diverse lakes in northern Europe is examined using reverse line blot hybridization. The statistical evaluation of the data in relation to the characteristics of the lakes has demonstrated that pH, temperature and the theoretical hydrological retention time of the lakes are strongly related to variations in the distribution of bacterial taxa.

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Respiratory succession and community succession of bacterioplankton in seasonally anoxic estuarine waters

Article Abstract:

An analysis of redox chemistry in water samples spanning the oxycline of Chesapeake Bay has shown that there is a succession of respiratory metabolism following the loss of oxygen. The results have shown that typical estuarine bacterioplankton has switched to anaerobic metabolism under anoxic conditions but are replaced by different organisms under sulfidic conditions.

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Rapid screening for freshwater bacterial groups by using reverse line blot hybridization

Article Abstract:

Research discusses the usefulness of oligonucleotide probes targeting 16S rRNA genes for the identification of phylogenetic clusters in freshwater bacteria. The probe is tested with 81 North and West European lakes in a reverse line blot hybridization. Results show that actinobacterial clusters and verrucomicrobial clusters form at least 90% of the lakes tested.

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