1. Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
2. Department of Plant Anatomy, Faculty of Science, Eötvös Loránd University, Budapest, Hungary
3. Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, D-38124, Braunschweig, Germany