Tronchuda cabbage flavonolds uptake by Pieris brassicae

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Federico Ferreres (Autor) Outra; Carla Sousa (Autor) REIT; Patricia Valentao (Autor) FFUP; Jose A Pereira (Autor) Outra; Rosa M Seabra (Autor) Outra; Paula B Andrade (Autor) FFUP

Revista

Título: Phytochemistry

Vol. 68

Páginas: 361-367

ISSN: 0031-9422

Editora: Elsevier

Indexação

ISI Web of Knowledge - 22 Citações

Scopus - 21 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-004-C4S

DOI: 10.1016/j.phytochem.2006.10.020

Abstract (EN): 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 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7