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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17743
Título

Induction of phenolic compounds in Hypericum perforatum L. cells by Colletotrichum gloeosporioides elicitation

AutorConceição, Luis F. R.; Ferreres, Federico ; Tavares, Rui M.; Dias, Alberto C. P.
Palabras claveHypericum perforatum
Colletotrichum gloeosporioides
Phenolics
Xanthones
Biotic stress
Methyl-jasmonate
Salicylic acid
HPLC–DAD–MS/MS
Fecha de publicaciónene-2006
EditorElsevier
CitaciónPhytochemistry 67(2): 149-155 (2006)
ResumenChanges 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.
Descripción7 pages, 3 figures.-- Available online 30 November 2005.
Versión del editorhttp://dx.doi.org/10.1016/j.phytochem.2005.10.017
URIhttp://hdl.handle.net/10261/17743
DOI10.1016/j.phytochem.2005.10.017
ISSN0031-9422
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