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2020, № 3 (41) |
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ECOLOGY
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Bukharina I.L., Isupova A.A. |
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Limits of resistance of microscopic fungi to oil pollution |
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The article presents the results of laboratory experiments to study the growth dynamics of the mycelium of endotrophic fungi at various concentrations of oil in the substrate. The results showed that the endotrophic fungi Fusarium equiseti and Cylindrocarpon magnusianum are able to survive at high concentrations of oil in the substrate, while they use different adaptation mechanisms. F. equiseti showed active growth already in the first week of contact with an oil-contaminated substrate, then a decrease in the growth rate of mycelium by 3-5 times was observed. During the first week of the experiment, C. magnusianum did not show active growth, and then the growth rate of mycelium increased 2-3 times. Thus, we observed species-specific reactions of the studied fungi to the conditions of oil pollution. Both types of fungi can be used in oil destruction technologies, reclamation of oil-contaminated lands, but at different levels of oil pollution of the substrate: F. equiseti can be more effective at low concentrations of oil in the substrate (1-2.5%) and when it is necessary to quickly restore land. C. magnusianum ˗ with prolonged oil pollution and high oil concentrations (5-10%)
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