1. Division of Microbial Ecology; Department of Microbiology and Ecosystem Science; Ecology Centre; University of Vienna; Althanstrasse 14 A-1090 Vienna Austria
2. Division of Computational Systems Biology; Department of Microbiology and Ecosystem Science; Ecology Centre; University of Vienna; Althanstrasse 14 A-1090 Vienna Austria
3. Biozentrum Klein Flottbek; Microbiology and Biotechnology; University of Hamburg; Ohnhorststr. 18 D-22609 Hamburg Germany
4. Division of Terrestrial Ecosystem Research; Department of Microbiology and Ecosystem Science; Ecology Centre; University of Vienna; Althanstrasse 14 A-1090 Vienna Austria
5. Winogradsky Institute of Microbiology; Russian Academy of Sciences; Prospekt 60-let Oktyabrya 7/2 Moscow 117312 Russia