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Université de Neuchâtel

Distribution of denitrifying bacterial communities in the stratified water column and sediment–water interface in two freshwater lakes and the Baltic Sea

Kim, Ok-Sun ; Imhoff, Johannes F ; Witzel, Karl-Paul ; Junier, Pilar

In: Aquatic ecology, 2011, vol. 45, no. 1, p. 99-112

We have studied the distribution and community composition of denitrifying bacteria in the stratified water column and at the sediment–water interface in lakes Plußsee and Schöhsee, and a near-shore site in the Baltic Sea in Germany. Although environmental changes induced by the stratification of the water column in marine environments are known to affect specific populations of denitrifying...

Université de Neuchâtel

Habitat partitioning of denitrifying bacterial communities carrying nirS or nirK genes in the stratified water column of Lake Kinneret, Israel

Junier, Pilar ; Kim, Ok-Sun ; Witzel, Karl-Paul ; Imhoff, Johannes F ; Hadas, Ora

In: Aquatic Microbial Ecology, 2008, vol. 51, p. 129-140

The community composition of denitrifying bacteria was studied in the stratified water column of Lake Kinneret. The nitrite reductase genes nirS and nirK were amplified by PCR from water samples taken at 1, 14, 19 and 22 m depth, which represent the epi-, meta- and hypolimnion of the lake. The PCR products were analyzed with terminal restriction fragment length polymorphism (T-RFLP)...