Sandro Peduzzi

TL;DR: Most populations were evenly distributed throughout the whole chemocline during March and June, while in August and October a microstratification of populations was detected suggesting specific eco-physiological adaptations of different populations of phototrophic sulfur bacteria to the steep physico-chemical gradients in the Chemocline of Lake Cadagno.

TL;DR: In this paper, sedimentological, trace metal, and molecular evidence for tracking bottom water redox-state conditions during the past 12,500 years in nowadays sulfidic and meromictic Lake Cadagno (Switzerland).

TL;DR: It is demonstrated that, in addition to changes in bacterial abundance, cell volume and biomass, changes in the taxonomic composition of the bacterial community can occur during discrete incubations of freshwater planktonic communities.

TL;DR: Comparative sequence analysis of a 16S rRNA gene clone library from the chemocline of the meromictic Lake Cadagno (Switzerland) retrieved two clusters of sequences resembling sulfate-reducing bacteria within the family Desulfovibrionaceae, suggesting a potential interaction between the two groups of bacteria.

TL;DR: Observations suggest that the C. clathratiforme population that has stabilized in Lake Cadagno is clonal, and it is speculated that such a clonal bloom could be caused by environmental disturbance, mutational adaptation, or invasion.