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https://hdl.handle.net/1822/8933| Título: | Induction of phenolic compounds in Hypericum perforatum L. cells by colletotrichum gloeosporioides elicitation |
| Autor(es): | Conceição, Luís F. R. Ferreres, Federico Tavares, R. M. Dias, Alberto Carlos Pires |
| Palavras-chave: | Hypericum Colletotrichum Phenolics Xanthone Hypericum perforatum salicylic acid Colletotrichium gloeosporioides xanthones biotic stress methyl-jasmonate HPLC-DAD-MS/MS Colletotrichum gloeosporioides |
| Data: | Jan-2006 |
| Editora: | Pergamon-Elsevier Science Ltd |
| Revista: | Phytochemistry |
| Citação: | "Phytochemistry. ISSN 0031-9422. 67 (Jan. 2009) 149.155. |
| Resumo(s): | Changes in phenolic metabolism after elicitation with Colletotrichum gloeosporioides (CG) has been studied in Hypericum perforatum L. (HP) cell suspension cultures. Soluble phenolics were analysed by HPLC–DAD and HPLC–DAD–MS/MS. HP cultures elicited with the CG elicitor showed a significant increase in xanthone accumulation. Xanthone accumulation increased twelve fold when the cells were primed with methyl-jasmonate (MeJ) or salicylic acid (SA), before elicitation. HP cultures exposed only to MeJ produced a set of flavonoids, the flavones which represent a substantial part (approx. 40%) of the total flavonoids accumulated in these cells. The possible importance of xanthones as a component of defence mechanism of HP against biotic stress is discussed. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/8933 |
| DOI: | 10.1016/j.phytochem.2005.10.017 |
| ISSN: | 0031-9422 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: | CBFP - Artigos/Papers DBio - Artigos/Papers |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| Phytochemistry, (2006), 67, 149-155.pdf | 281,23 kB | Adobe PDF | Ver/Abrir |
