Mikrobiol. Z. 2018; 80(5):90-97.
doi: https://doi.org/10.15407/microbiolj80.05.090

Antibiotic and Phytotoxic Activities of Cultural Filtrates of Some Micromycete Strains

Rubezhniak I.G.

National University of Life and Environmental Sciences of Ukraine
15 Heroyiv Oborony Str., Kyiv, 03041, Ukraine

The aim of work was to test the antibiotic and phytotoxic activity of cultural filtrates of 125 micromycete strains isolated from different ecological niches. Methods. The activity was studied using different test-organisms – Gram negative phytopathogenic bacteria, yeasts and green algae. Results. It is shown that 57 cultures were developed biological activities only. The wide spectrum of antibiotic action and middle antifungal activity was characterized for the cultures of genus Aspergillus and Penicillium. A fungistatic activity was shown only by strains as A. parvulus 31, A. versicolor 60, P. brevicompactum 144, P. rubrum 91 and 93. A significant group consisted of cultures with phytotoxic activity: A. alliaceus 16, A. parvulus 30, A. versicolor 56, Aureobasidium pullulans 41 and 44, Chaetomium globosum 38, Curvularia inaequalis 84, Fusarium merismoides 151, Mortirella vinacea 74 and 82, Paecilomyces lilacinus 127, P. chrysogenum 163. Most strains with antibiotic activity did not show phytotoxic activity against test culture. Conclusions. As it is no findings about phytotoxic effect of strains of A. pullulans and M. vinacea and from the data obtained it might be inferred that the phytotoxic potential of these genus to be the most promising for further researches.

Keywords: micromycetes, antibiotic activity, phytotoxic activity, test-organisms.

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