Mikrobiol. Z. 2019; 81(1):84-93.
doi: https://doi.org/10.15407/microbiolj81.01.084

Physical-Chemical and Toxigenic Characteristics of the New Metabolites from Ulocladium consortiale 960

Savchuk Ya.I., Tsyganenko K.S., Andrienko O.V.

Zabolotny Institute of Microbiology and Virology, NAS of Ukraine
154 Akad. Zabolotny Str., Kyiv, 03143, Ukraine

Fungi as producers of biologically active metabolites were and remain of particular interest of the investigators. As the same time, despite the large number of different investigations and numerous scientific publications a major part of described species are not studied at that aspect. The data concerning biosynthetic potential of fungi of Ulocladium genus are practically absent in literature. However the screening carried out by us early showed that U. consortiale 960 possess the wide spectrum of antibiotic activity. Aim. This investigation became the follow-up of our previous studies and its main task was isolation, purification of U. consortiale 960 active metabolite(s) and obtaining of them in crystalline state for possible determination of structure. Methods. For obtaining the biologically active metabolites column chromatography and recrystallization were used; characterisation of obtained substances were made by physical-chemical and microbiological methods. Results. As a result of work done two compounds in crystalline form with different spectrum of antibiotic activity against indicator test cultures were obtained. Neither of obtained compounds showed dermatocidal and toxigenic activity in rabbit skin test. From the obtained spectral characteristics of substance UC960 it may be concluded that it belongs to aromatic compounds with benzene ring, has double linkage, methyl- and carboxyl groups. Conclusions. Obtained data showed that antibiotic nature of strain 960 is determined by the variety of biologically active metabolites with different biological and physical-chemical properties. The presented results and the analysis of literature data show that U. consortiale 960 possibly can produce the new for Ulocladium genus biologically active metabolites, which require further investigations.

Keywords: Ulocladium, Ulocladium consortiale, antibiotic activity, metabolites.

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