1. Institute of Microbiology of the Czech Academy of Sciences Vídeňská 1083 142 20 Prague Czechia
2. Institute of Botany of the Czech Academy of Sciences Zámek 1 252 43 Průhonice Czechia
3. Institute of Ecology and Earth Sciences University of Tartu J. Liivi St 2 504 09 Tartu Estonia
4. Faculty of Science Charles University Albertov 6 128 43 Prague Czechia