English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17655
Título

Tronchuda cabbage flavonoids uptake by Pieris brassicae

AutorFerreres, Federico ; Sousa, Carla; Valentão, Patricia; Pereira, José Alberto; Seabra, Rosa M.; Andrade, Paula B.
Palabras clavePieris brassicae L. larvae
Tronchuda cabbage
Brassica oleracea L. var. costata DC
Flavonoids
Fecha de publicaciónfeb-2007
EditorElsevier
CitaciónPhytochemistry 68(3): 361-367 (2007)
ResumenThe flavonoid pattern of larvae of cabbage white butterfly (Pieris brassicae L.; Lepidoptera: Pieridae) reared on the leaves of tronchuda cabbage was analysed by HPLC-DAD-MS/MS-ESI. Twenty flavonoids were identified or characterised, namely 16 kaempferol and four quercetin derivatives. Kaempferol 3-O-sophoroside, a minor component of tronchuda cabbage, was found to be the main component in P. brassicae (15.8%). Apart from this, only two other flavonoids present in significant amounts in tronchuda cabbage (kaempferol 3-O-sophoroside-7-O-glucoside and kaempferol 3-O-sophoroside-7-O-sophoroside) were found in the larvae. The larvae have high amounts of quercetin derivatives (18.5%), which were present only in trace amounts in tronchuda cabbage extracts, suggesting that P. brassicae is able to selectively sequester these flavonoids. The occurrence of a high content of flavonoids not detectable in tronchuda cabbage extracts indicates that P. brassicae larvae are able to metabolize dietary flavonoids.
[Graphical abstract]: The flavonoid pattern of larvae of cabbage white butterfly (Pieris brassicae L.; Lepidoptera: Pieridae) reared on the leaves of tronchuda cabbage was analysed by HPLC-DAD-MS/MS-ESI. Twenty kaempferol and quercetin derivatives were identified or characterised. The results suggest that P. brassicae is able to selectively sequester quercetin derivatives and to metabolize dietary flavonoids.
Descripción7 pages, 4 tables, 4 figures.-- El PDF es la copia de autor.
Versión del editorhttp://dx.doi.org/10.1016/j.phytochem.2006.10.020
URIhttp://hdl.handle.net/10261/17655
DOI10.1016/j.phytochem.2006.10.020
ISSN0031-9422
Aparece en las colecciones: (CEBAS) 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.