During my PhD, I aim to analyze carbohydrates in the ocean and link their concentration and dynamics to oceanographic parameters. Oceanic cycling of carbon has a considerable influence on the climate (e.g. biological and “microbial” carbon pumps). Current knowledge of carbon cycling in the water column is based on fingerprinting of the carbon inventory. After observing a diversification of carbohydrates by microbial enzymes, I developed an extraction technique for carbohydrates from seawater. With this extraction technique, we obtained samples from the Mauritanian Upwelling System over diel cycles on a transect from shore to open ocean.
Research interests
- marine carbon cycle
- molecular composition and turnover of marine dissolved organic matter
- mechanisms of carbon sequestration
- carbohydrate sequencing
Techniques
- extraction from seawater
- enzymatic digestion
- liquid chromatography-tandem mass spectrometry
Posters, Talks, Conferences
Nanomolar diel fluctuations of starch and laminarin in DOM, Marine microbiota symposium, September 2019, Oldenburg, Germany
Chair of session 2 at YOUMARES 8, September 2017, Kiel, Germany
List of Publications
Brüwer J.D. and Buck-Wiese H. (2018) Reading the book of life – omics as a universal tool across disciplines in S. Jungblut et al. (eds.), YOUMARES 8 – Oceans Across Boundaries: Learning from Each Other, Springer, https://doi.org/10.1007/978-3-319-93284-2_6
Buck-Wiese H., Burgués I., Medrano A., Fernandez-Navarrete T., Garcia M., Wieters E.A. (2018) Patterns in sexual reproduction of the dominant scleractinian corals at Rapa Nui (Easter Island): Pocillopora verrucosa and Porites lobata, Aquatic Biology, https://doi.org/10.3354/ab00691
Buck-Wiese H., Voolstra C. R., Brüwer J. D. (2017) The metaorganism frontier - incorporating microbes in an organism's response to environmental change
