title: Antimicrobial activity of three Mexican Gnaphalium species.
abstract: The antibacterial activity of the hexane, ethyl acetate and methanol extracts of the flowers, leaves and stems of Gnaphalium oxyphyllum var. oxyphyllum, G. liebmannii var. monticola and G. viscosum was investigated. The hexane extracts showed in all cases the higher inhibitions, G. oxyphyllum flower extract exhibiting the wider spectrum of activity.
authors.affiliation: Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Km. 4.5 Carretera Pachuca-Tulancingo, Unidad Universitaria, C.P. 42076, Pachuca, Hidalgo, Mexico. jrvi@uaeh.reduaeh.mx
authors.forename: J R
authors.initials: JR
authors.lastname: Villagómez-Ibarra
authors.forename: M
authors.initials: M
authors.lastname: Sánchez
authors.forename: O
authors.initials: O
authors.lastname: Espejo
authors.forename: A
authors.initials: A
authors.lastname: Zúñiga-Estrada
authors.forename: J M
authors.initials: JM
authors.lastname: Torres-Valencia
authors.forename: P
authors.initials: P
authors.lastname: Joseph-Nathan
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D019659:Asteraceae; D001419:Bacteria / Q000187:drug effects*; D004224:Diterpenes / Q000494:pharmacology; D005419:Flavonoids / Q000494:pharmacology; D006801:Humans; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D004224:Diterpenes; D005419:Flavonoids; D010936:Plant Extracts