1. Institute of Microbiology, Technische Universität Dresden, 01062 Dresden, Germany;
2. Institute of Microbiology and Genetics, Georg-August-Universität Göttingen, 37077 Göttingen, Germany;
3. Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany;
4. Department of Bioproducts and Biosystems, Aalto University, 02150 Espoo, Finland