1. Plant Development and Electron Microscopy, Department of Biology I Munchen Germany
2. LOEWE Centre for Synthetic Microbiology (SYNMIKRO)Philipps‐Universität Marburg Marburg Germany
3. Institute of Microbiology and Centre for Electron Microscopy, University of Regensburg Regensburg Germany
4. Microscopy, Center for Plant Molecular BiologyUniversity of Tübingen Tübingen Germany