Evaluation of the antifungal activity of propolis extracts from stingless bees on phytopathogenic fungi

The bees of the Meliponini tribe, known as stingless (SB), elaborate a distinct type propolis, whose application potential is largely unexplored. Currently, there some knowledge pharmacological activities propolis from Apis mellifera, however, little about diversity and antimicrobial activity especially in relation to pathogens agricultural importance. This study aimed investigate alcoholic extract T. clavipes (Borá), S. bipunctata (Tubuna), angustula (Jataí), comparing with ethanolic A. mellifera propolis. autoclaved non-autoclaved extracts were evaluated at concentrations zero, 1.6 %; 3.2 6.4 %, 12.0 % v/v. Fungal development was determined by measuring mycelial diameter up fourteenth day inoculation, five replicates; growth inhibition calculated relative control. According results, highest concentration phenolic compounds flavonoids present when compared SB extracts. results indicated an inhibitory effect on phytopathogens Colletotrichum gloeosporioides, Fusarium sp., Botryosphaeria Botrytis mainly v/v medium, followed medium. fungus sp. phytopathogen that suffered greater mL∙L-1, extract. obtained demonstrate have control phytopathogenic fungi interest.