Aim: To study mycobiota structure of Quercus robur acorns during storage and its ozone and wax treatment infuence on fungi.
Methods: Mycological, physical and mathematical methods were used to investigation.
Results: The lowest similarity of mycobiota species structure was observed between acorns treated with ozone and ones overwintered under nature conditions (S=0.17). Mycobiota of acorns treated with wax was characterized by the highest domination index (C=0.50) with prevailing of Penicillium variabile. It was determined the regulative role of acorn treatment with ozone and wax on fungal species diversity including plant pathogens.