1. Geomicrobiology, Department of Geosciences, University of Tübingen, Schnarrenbergstrasse 94-96, 72076 Tübingen, Germany
2. Analytical Biogeochemistry, Helmholtz Center Munich, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
3. Analytical Food Chemistry, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354 Freising, Germany
4. Environmental Chemistry, University of Neuchâtel, Avenue de Bellevaux 51, Neuchâtel, CH-2000, Switzerland
5. School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK
6. Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Schnarrenbergstrasse 94-96, 72076 Tübingen, Germany