Medicinal plants are an important source of treatment for many ailments, although little is known of the potential genotoxic effects of most species. In the present study, two species from diverse and medicinally important genera - Maytenus rigida Mart., Celastraceae, and Aristolochia birostris Ducht, Aristolochiaceae - were analyzed to identify potentially significant secondary metabolites and the possible eff...
An inventory of the avian fauna of the Grota do Angico Natural Monument in the Caatinga of northern Sergipe, Brazil, revealed the presence of at least 140 species, including nine that are endemic to the Caatinga and seasonal forest adjacent. Despite the limited scope of the study (two expeditions in July and August, 2008), the species richness recorded at the site appeared to be typical of the region and the Ca...