Micromycetes species identification and study of their ability to produce fusariotoxins
Journal Title: Бюлетень "Ветеринарна біотехнологія" - Year 2017, Vol 30, Issue
Abstract
Introduction. Among many toxic environmental factors, more attention is attracted to the metabolites of mold fungi - micotoxin. More than 45 of only trichothecene mycotoxins have been isolated and studied. T-2 toxin is outstands among them because of especially high toxicity and frequency of detection, as it the main etiological factor of fusariotoxicosis of farm animals. Fusariotoxicosis is periodically registered both in our country and abroad.Another mycotoxin, which in recent years has become widespread in the EU and CIS countries as a result of global warming, is fumonisin B1. Fumonisin B1 is toxic as for liver, kidneys, so for the cardiovascular system of all animal species, causes the pathology of mitosis in theaffected tissues followed by cell death. The goal of the work was to conduct micromycetes species identification in grain fodder from different regions of Ukraine and study the distribution of micromycetes capable to produce fumonisins. Materials and methods. For the study 35 samples of various types of grain forages (wheat, bran, corn, barley, oats, soybeans) and mixed fodder were sampled. Results of the study and discussion. In fodder samples we detected Fusarium fungi in 26.9% of samples, Penicillium in 18.0%, and Aspergillus in 20.5 % of samples. As a result of identification 78 strains of fungi were isolated, and Fusarium was detected in the largest number of samples. Tetrachymena piriformis test showed that 40 of 78 studied strains were toxic. Within 27 of studied toxic Fusarium strains, 7 ones were producers of T-2 toxin, 9 producers of zearalenone and 11 producers of Fumonisins. Conclusions and prospects further research. It is established that grain forages are often contaminated with micromycetes: Penicillium, Fusarium, Alternaria and others. Toxic strains of fungi of the Fusarium genus are active producers of fusarotoxins: zearalenone, T-2 toxin, and fumonisin В1.
Authors and Affiliations
Olga Vasianovych, Maryna Ruda, Julia Yangol
Keywords
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- EP ID EP267272
- DOI 10.31073/vet_biotech30-03
- Views 114
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