Michaela A. Mausz, Dr.
School of Life Sciences
|Phone: +44 (0) 24-7652 2697
Postdoc, University of Warwick (since 2014)
Dr. rer. nat., Bioorganic analytics, Friedrich Schiller University Jena, GER (2010-2014)
Mag. rer. nat., Ecology/Marine biology, University of Vienna, AUT (2002-2008)
Biogeochemical cycling of N-osmolytes in the surface ocean
Osmolytes such as dimethylsulfoniopropionate (DMSP), choline or glycine betaine (GBT) enable marine organisms to cope better with the stressful conditions found in oceanic ecosystems. Consequently, these compounds accumulate inside their cells. Upon their occasional release into the environment, osmolytes can constitute an important nutrient source for many members of the marine microbial community. Present knowledge of osmolyte biogeochemical cycling, however, is solely focused on the sulphur-containing DMSP, thereby overlooking nitrogen-containing osmolytes such as choline or GBT. Thus, we set out to shed light on the seasonal cycling of these N-osmolytes in surface marine waters.
My part in this project is to explore metabolic processes involved in N-osmolyte degradation using Ruegeria pomeroyi, a dominant marine Alphaproteobacterium, as a model organisms. Further, I analyse microbial uptake and respiration in natural surface seawater from Station L4 of the Western Channel Observatory, and determine members of the microbial community that are able to metabolise N-osmolytes. This project is part of an UK Natural Environment Research Council grant on N-osmolytes.
My research interest is focused on interactions between different organisms or organisms and viruses in the marine environment as well as their involvement in feedback mechanisms to the environment.
- Paul C, Mausz MA, Pohnert G (2013) A co-culturing/metabolomics approach to investigate chemically mediated interactions of planktonic organisms reveals influence of bacteria on diatom metabolism. Metabolomics 9: 349-359. View
- Paul C, Reunamo A, Lindehoff E, Bergkvist J, Mausz MA, Larsson H, Richter H, Wängberg SÅ, Leskinen P, Båmstedt U, Pohnert G (2012) Diatom derived polyunsaturated aldehydes do not structure the planktonic microbial community in a mesocosm study. Marine Drugs 10, 775-792. View