[Evaluation of micromycetes potential concerning synthesis of biologically active substances]

Screening of 41 cultures of some researched strains of micromycetes by their antibiotic and phytotoxic activities in relation to different test-organisms--Gram-positive, Gram-negative, phytopathogenic bacteria, yeasts and green algae was conducted. The wide spectrum of antibiotic action was characterized for the cultures of Gliocladium catenulatum 2709, 3942 Penicillium vulpinum 3957, Ulocladium atrum 1889, U.consortiale 960, Trithirachium album 2673. A fungistatic activity was shown by only two strains U. consortiale 960 and Nectria inventa 3949. A small group consisted of cultures with high phytotoxic activity: P. vulpimum 3957, U. atrum 1889, U. consortiale 960, N. inventa 3949, Eupenicillium parvum 3128, Bipolaris sorokinia 4080, Paecilomyces lilacinus 1428, 1492, T. album 2673. They showed the activity in relation to the majority of test-cultures of the green algae. We consider two cultures: U. consortiale 960 and P. vulpinum 3957 to be the most promising for further researches, they differ by a wide spectrum of antibiotic and phytotoxic activity and were not studied before. The paper is presented in Ukrainian.