Soil microorganisms and plants are key players in the production and breakdown of organic matter, and together control global biogeochemical cycles of carbon, nitrogen and phosphorus. TER, the Division of Terrestrial Ecosystem Research, aims to advance our fundamental understanding of how plants and soil microorganisms respond to, and in turn shape, their abiotic and biotic environment, and to determine the consequences for the functioning of Earth’s ecosystems.
Research Mission
Primarily dedicated to basic research, TER addresses pressing environmental issues, such as the impact of climate and land-use change on ecosystem functioning and the role of soils in the global carbon cycle and in food security. In doing so, we work on scales from µm (i.e. the scale at which microbes operate) to the biosphere (i.e. where plant and microbial processes become evident), and in ecosystems spanning the Arctic tundra to tropical rainforests. We integrate this scale of thinking with state-of-the-art methods, including stable isotope tracing and biomarker fingerprinting, and are developing novel approaches to estimate gross environmental processes with isotope pool dilution techniques.
We are strongly committed to conduct world-leading research in a motivating and intellectually stimulating environment, and to train our students to become independent and internationally competitive scientists who enjoy research and contribute to society as conscientious citizens.

Research Projects
Microbial Nitrogen Cycling - From Single Cells to Ecosystems (Graduate Program)
Understanding the contribution of microorganisms to ecosystem processes remains one of the most compelling challenges in ecology and requires a high degree of interdisciplinary research. Ten faculty members from three departments have designed a joint PhD program with highly integrated, interdisciplinary and international education, training and research, dedicated to creating knowledge and expertise in both microbial ecology and ecosystems research in the area of microbial nitrogen cycling.
My group is researching into the role of microbial groups in N turnover at a very fine phylogenetic resolution and covering microorganisms of all domains of life (archaea, bacteria and fungi) by Chip-SIP (isotope array approach with NanoSIMS). Our work will focus on the question which soil microbial taxa are mainly involved in the decomposition of high molecular weight organic N (e.g. chitin, peptidoglycan, protein, humus) and thus play a key role in terrestrial N cycling, and whether there are differences in the uptake and utilization of easily assimilable N forms (e.g. amino acids, amino sugars, ammonium or nitrate) in various microbial taxa, i.e. if there are different microbial N utilization strategies.
Collaboration with Dagmar Wöbken and Michael Wagner.
The Graduate Program is funded by the FWF - Austrian Science Fund.

Investigated by:
Links:
- External Webpage: Graduate Program Microbial N Cycling