1. Doctoral School in Microbiology and Environmental Science, University of Vienna. Universitätsring 1, 1010 Vienna, Austria
2. Centre for Microbiology and Environmental Systems Science, University of Vienna. Djerassiplatz 1, 1030 Vienna, Austria
3. Current address: Laboratory of Microbiology, Wageningen University and Research, Stippeneng 4, 6700 EH Wageningen, The Netherlands
4. OD Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences. Rue Vautier/Vautierstraat 29,, 1000 Brussels, Belgium