1. Department of Biochemistry and Synthetic Metabolism Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Strasse 10 35043 Marburg Germany
2. Equipment Center for Mass Spectrometry and Elemental Analysis Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
3. Core Facility for Metabolomics and Small Molecule Mass Spectrometry Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Strasse 10 35043 Marburg Germany