Abstract
Herbivorous mammal dung supports a large variety of fimicolous fungi and the number of new genera and species is constantly increasing. Dung is a complex ecosystem and to win the struggle for life, these fungi produce a plethora of bioactive secondary metabolites to compete with other organisms. Fimicolous fungi and their bioactive metabolites are mostly evaluated for a possible use in medicine. Very little information is available about their possible exploitation in agriculture against plant pathogens. Three fimicolous isolates of Cleistothelebolus nipigonensis, Neogymnomyces virgineus and Rodentomyces reticulatus, collected from dung of different herbivorous were investigated. Only the organic extracts of Solid State Fermentation (SSF) cultures of C. nipigonensis and N. virgineus grown on rye flour showed strong antifungal activity against fungal pathogens of some important crops. The purification of the organic extracts allowed us to obtain different fractions and the isolation of some pure metabolites and their preliminary chemical and biological characterization are reported in this manuscript.
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