MYCOBIOTA OF THE AIR LAYERS IN DIFFERENT NATURAL AND INDUSTRIAL ZONES OF THE MURMANSK REGION
The number and composition of fungi-aerobionts in surface air of Euro-Arctic areas of Russia, namely, in tundra zone, Northern taiga subzone, and in industrial zones are studied. 192 air samples belonging to different ecosystems have been collected and analyzed. Sampling has been carried out during summer-autumn period (June, July, September) 2012-2015 years, by means of PU-1B sampler precipitating fungi on the nutrient medium surface of wort agar supplemented with lactic acid. Between 250 and 350 liters of air has been accepted from each plot at a height of 1.2 m having 3 replicas. During the period studied the smallest number of fungal diaspores in the air above the Barents Sea coast is found to be as low as 11 ± 3 fungal germs per 1 m3. The diversity of micromycetes-aerobionts in taiga zone is found to be richer compared to the tundra zone. The air of the background plots of the tundra zone is dominated by Penicillium decumbens, P. raistrickii; taiga zone - P. raistrickii species, the genus Torula and mycelia sterilia. The air of the plot most contaminated by aluminum plant emissions is dominated by Cladosporium oxysporum, and by «Pechenganikel» plant emissions - Gongronella butleri. The fraction of dark-pigmented micromy-cetes in the air of both zones comprises 25 % of the total amount of the species analysed.