Potential allelopatic effects of stilbenoids and flavonoids from leaves of Carex distachya Desf.

被引：39

作者：

Fiorentino, Antonio ^{[1
]}

D'Abrosca, Brigida ^{[1
]}

Pacifico, Severina ^{[1
]}

Izzo, Angelina ^{[1
]}

Letizia, Marianna ^{[1
]}

Esposito, Assunta ^{[1
]}

Monaco, Pietro ^{[1
]}

机构：

[1] Univ Naples 2, Dipartimento Sci Vita, Lab Phytochem, I-81100 Caserta, Italy

来源：

BIOCHEMICAL SYSTEMATICS AND ECOLOGY | 2008年 / 36卷 / 09期

关键词：

Carex distachya; Cyperaceae; Carexanes; Allelopathy; Mediterranean macchia; Stilbenoids; Flavonoids;

D O I：

10.1016/j.bse.2008.07.002

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The potential allelopathic effects of 14 stilbenoids and five flavonoids, isolated from leaves of Carex distachya Desf., were evaluated on the seed germination and seedling growth of three coexisting Mediterranean species (Doctylis hispanica, Petrorhagia velutina, and Phleum subulatum). The structures of the metabolites have been elucidated on the basis of their spectroscopic features (1D and 2D NMR experiments and EI-MS and ESI-MS data). The bioassays showed species-specific effects of the metabolites from C distachya, specially on the plant growth (root and shoot elongation) which resulted significantly stimulated or inhibited at 10(-4) M concentration. The effects on root elongation is generally greater than the shoot growth at all the tested concentrations (10(-4)-10(-8) M). Cluster of biological data showed interesting relationships between the chemical structures of the compounds and their biological effects. (C) 2008 Elsevier Ltd. All rights reserved

引用

页码：691 / 698

页数：8

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