title: Occurrence of usnic acid in Usnea laevis Nylander (lichenized ascomycetes) from the Venezuelan Andes.
abstract: The presence of usnic acid in the lichen Usnea laevis Nyl. from the Venezuelan Andes was detected through chromotographic (TLC) and spectroscopic (IR, MS, 1H-NMR) methods. This compound was present in a concentration of 2.7% in the thallus. Usnic acid has a reported antibiotic activity and the lichen is utilized for medicinal purposes by Andean farmers.
authors.affiliation: Centro de Microscopía Electrónica, Universidad de Los Andes, Mérida, Venezuela.
authors.forename: V
authors.initials: V
authors.lastname: Marcano
authors.forename: V
authors.initials: V
authors.lastname: Rodriguez-Alcocer
authors.forename: A
authors.initials: A
authors.lastname: Morales Méndez
mesh_terms: D000890:Anti-Infective Agents / Q000032:analysis*; D001572:Benzofurans / Q000032:analysis*; D002845:Chromatography; D008519:Medicine, Traditional; D010936:Plant Extracts / Q000737:chemistry*; D013045:Species Specificity; D013057:Spectrum Analysis; D014687:Venezuela
chemical_list: D000890:Anti-Infective Agents; D001572:Benzofurans; D010936:Plant Extracts; C073339:usnic acid