16S sequencing - River biofilms colonied in presence of cobalt (Chaire Ecotox)

The aim of the study was to assess how cobalt (Co) can impact the colonization kinetics, structure and functional potential of prokaryotic communities developing in freshwaters biofilms.Biofilms were colonized in artificial streams in 4 conditions (Control, 0.1 microMolar, 0.5 microMolar and 1 microMolar Co; each in triplicates of streams) and collected every 7 days during cobalt exposure (28 days). Biofilms were also collected after a recovery period of 35 days without cobalt.Triplicates of conditions and triplicates of samples for each stream.