1. Department of Microbial Ecology and Diversity Research, Leibniz Institut DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen, Braunschweig, Germany
2. Central Facility for Microscopy, Helmholtz Centre for Infection Research, Braunschweig, Germany
3. Technische Universität Braunschweig, Braunschweig, Germany