Toxin-producing fungi of the genus Penicillium in coarse fodders

The search for toxin-producing microscopic fungi, affecting plant and animals products, food and feed continues to be relevant in scientific research. A long-term study of this problem has shown that the threat of the occurrence of toxicoses of humans and animals is associated mainly with micromycetes of genus Fusarium , Aspergillus and Penicillium (CAST, 1989). In coarse feed, which form the basis of the ration of ruminants, these fungi have a leading position. Among Fusarium fungi the highly toxic species F. sporotrichioides dominates in hay and straw (E.A. Piryazeva et al., 2016), and 7 species of Aspergillus are capable to contaminate that with CPA, STE and MPA (G.P. Kononenko et al., 2017). The purpose of this work was to elucidate the toxin-forming potential of 11 species of the genus Penicillium fungi which prevail in mycobiota of coarse feed. The strains were cultured for 7 days at 25 °С on a panel including Czapek Dox agar (CDA), wort agar (WA), Czapek Yeast Autolysate Agar (CYA), yeast extract sucrose agar (YES) and moistened rice grain (RG)...