Antimicrobial Activity of Propolis from the Brazilian Stingless Bees and (Hymenoptera, Apidae, Meliponini).

and are species of stingless bees capable of producing propolis, which has considerable bioprospecting potential. In this context, the objective of this study was to determine the chemical compositions and evaluate the antimicrobial activity of propolis produced by and . The ethanolic extracts of propolis of (EEP-M) and (EEP-S) were prepared, and their chemical constituents were characterized by HPLC-ESI-MS.

Diversity, Chemical Constituents and Biological Activities of Endophytic Fungi Isolated from Raddi.

Raddi is a medicinal plant widely used for the treatment of various diseases. The secondary metabolites responsible for the pharmacological properties can be produced directly by the plant or by endophytic fungi. The objective of this study was to evaluate the diversity of endophytic fungi of different parts of and to identify chemical compounds produced by endophytes and their antioxidant and antibacterial activities.