1. Institute of Microbiology AS CR; Praha 4 Czech Republic
2. Institute of Soil Biology; Biology Centre AS CR; České Budějovice Czech Republic
3. Faculty of Forestry and Wood Technology; Mendel University in Brno; Zemědělská 3 613 00 Brno Czech Republic
4. Department of Botany; Faculty of Science; Charles University in Prague; Praha 2 Czech Republic