English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/12607
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Pyrrolizidine alkaloids from Canarian endemic plants and their biological effects

AutorDomínguez-Díaz, Dulce ; Reina, Matías ; Santos-Guerra, Arnoldo; Santana, Omar; Agulló-Ortuño, María Teresa ; López-Barboa, Carmen; González-Coloma, Azucena
Palabras claveCanarian endemism
Asteraceae
Boraginaceae
Pyrrolizidine alkaloid
Antifeedant
Cytotoxic
Phytotoxic
Fecha de publicaciónmar-2008
EditorElsevier
CitaciónBiochemical Systematics and Ecology 36(3): 153-166 (2008)
ResumenPyrrolizidine alkaloid (PA) producing plants belonging to the Boraginaceae (Echium wildpretti) and Asteraceae (Canariothamnus palmensis, Kleinia neriifolia, Pericallis appendiculata, Pericallis echinata, Pericallis hansenii, Pericallis multiflora, Pericallis steetzii and Senecio bollei) were selected to study their alkaloidal composition and the defensive properties (antifeedant and phytotoxic effects) of their ethanolic and alkaloidal extracts plus their isolated PAs against insects (Spodoptera littoralis, Leptinotarsa decemlineata, the aphids Myzus persicae and Rhopalosiphum padi) and Lactuca sativa seeds. We also tested the selective cytotoxic effects of these PAs on insect-derived Sf9 and mammalian CHO cells. Most of the insect antifeedant effects were found in the ethanolic extracts. The isolated PAs had species- and structure-dependent antifeedant effects and all of them decreased L. sativa radicle growth, suggesting a specific mode of action against insects and a generalized one against plants. Given the relatively low alkaloid content of these species, we assume that their herbivore defenses are not only alkaloid-based.
Descripción14 pages, 2 figures, 5 tables.-- Available online Oct 25, 2007.
Versión del editorhttp://dx.doi.org/10.1016/j.bse.2007.08.015
URIhttp://hdl.handle.net/10261/12607
DOI10.1016/j.bse.2007.08.015
ISSN0305-1978
Aparece en las colecciones: (IPNA) Artículos
(ICA) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.