1. Department of Molecular Microbiology and Genetics Institute of Microbiology and Genetics University of Goettingen and Goettingen Center for Molecular Biosciences (GZMB) Grisebachstr. 8 D‐37077 Goettingen Germany
2. Department of Microbiology Faculty of Biology VNU University of Science 334 Nguyen Trai, Thanh Xuan 100000 Hanoi Vietnam
3. Imaging Center of the Department of Biology University of Greifswald D‐17489 Greifswald Germany
4. Plant‐Soil Interactions Agroecology and Environment Research Division, Agroscope Reckenholzstrasse 191 CH‐8046 Zürich Switzerland