1. Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų Str. 1, Girionys, 53101 Kaunas, Lithuania
2. Department of Mycology and Plant Resistance, V.N. Karazin Kharkiv National University, Svobody Sq., 61022 Kharkiv, Ukraine
3. Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden