1. Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamýcká 129, Prague 6 – Suchdol, 165 00, Czech Republic
2. Institute of Animal Physiology and Genetics v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 – Krč, 142 20, Czech Republic
3. Institute of Microbiology of the Czech Academy of Sciences, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic
4. Department of Biology, Faculty of Science, J. E. Purkyně University in Ústí nad Labem, Za Válcovnou 1000/8, 400 96 Ústí nad Labem, Czech Republic