1. Institute of Microbiology of the Czech Academy of Sciences , Vídeňská 1083, 142 20 Praha 4, Czech Republic
2. Faculty of Science, Charles University in Prague , Albertov 6, 128 00, Praha 2, Czech Republic
3. Faculty of Forestry and Wood Technology, Mendel University in Brno , Zemědělská 3, 613 00 Brno, Czech Republic