title: 3-O-Acetyl-narcissidine, a bioactive alkaloid from Hippeastrum puniceum Lam. (Amaryllidaceae).
abstract: In the context of the study on plant defensive compounds we have isolated the main alkaloid from Hippeastrum puniceum (Amaryllidaceae), 3-O-acetyl-narcissidine (1), and its biological activities tested against two divergent insect species and several plant species. 1 was isolated from the bioactive alkaloidal fraction of H. puniceum. Its chemical structure was established by spectroscopic analysis. The biological activity tests showed that 1 is an antifeedant against the polyphagous insect Spodoptera littoralis but not against the olyphage Leptinotarsa decemlineata. Furthermore, the root growth of Amaranthus hypochondriacus, Rottboellia cochinchinensis, Panicum maximum and Solanum lycopersicum was significantly affected by 1. These results suggest a plant protective role for H. puniceum alkaloids.
authors.affiliation: Instituto de Ciencias Agrarias, CSIC, Serrano 115-dpdo, 28006 Madrid, Spain.
authors.forename: Omar
authors.initials: O
authors.lastname: Santana
authors.forename: Matías
authors.initials: M
authors.lastname: Reinab
authors.forename: Ana Luisa
authors.initials: AL
authors.lastname: Anaya
authors.forename: Fidel
authors.initials: F
authors.lastname: Hernández
authors.forename: M Elena
authors.initials: ME
authors.lastname: Izquierdo
authors.forename: Azucena
authors.initials: A
authors.lastname: González-Coloma
mesh_terms: D000157:Aconitine / Q000494:pharmacology; D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D027721:Amaranthus / Q000187:drug effects / Q000254:growth & development; D047151:Amaryllidaceae Alkaloids / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology / Q000633:toxicity; D000818:Animals; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity*; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity*; D019668:Liliaceae / Q000737:chemistry*; D018551:Solanum lycopersicum / Q000187:drug effects / Q000254:growth & development; D010830:Physostigmine / Q000494:pharmacology; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D010944:Plants / Q000187:drug effects; D018411:Spodoptera / Q000187:drug effects*
chemical_list: D000470:Alkaloids; D047151:Amaryllidaceae Alkaloids; D006576:Heterocyclic Compounds, 4 or More Rings; D007306:Insecticides; D010936:Plant Extracts; C445941:narcissidine; D010830:Physostigmine; D000157:Aconitine