1 LOEWE Center for Synthetic Microbiology and Department of Chemistry, Philipps-University-Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany. Electronic address: gert.bange@synmikro.uni-marburg.de.
2 LOEWE Center for Synthetic Microbiology and Department of Chemistry, Philipps-University-Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany. Electronic address: torsten.waldminghaus@synmikro.uni-marburg.de.