Department of Biology Staff

Prof. Dr. Heide Schulz-Vogt: Magnetotactic bacteria in stratified water columns

Seminar: Microbiology

Info about event

Time

Tuesday 2 November 2021,  at 13:00 - 13:45

Location

Department of Biology, Ny Munkegade 114-116, building 1540-116

Speaker: Prof. Dr. Heide Schulz-Vogt, Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Rostock, Germany

ABSTRACT:

Stratified water columns like the Black Sea or the deeper basins of the Baltic Sea offer unique opportunities to study microbial processes which impact the major biogeochemical cycles, if the relevant parameters are measured with sufficient spatial resolution. An example for this are populations of magnetotactic bacteria, which shuttle between deeper sulfidic water layers and layers where they find nitrate. In the Black Sea it was shown that these bacteria can pump phosphate down to the sulfidic waters and thereby help to maintain the oligotrophic state of the Black Sea. Very recently similar bacteria were also observed in the Baltic Sea. More in general, high resolution profiles by pump CTD in the open water result in many observations which are not explained by our current knowledge and may open the door for future discoveries.

Everybody is welcome.