Journal
PHYTOCHEMISTRY LETTERS
Volume 5, Issue 1, Pages 206-210Publisher
ELSEVIER
DOI: 10.1016/j.phytol.2011.12.009
Keywords
Dactylis glomerata subsp hispanica; Poaceae; Alkylphenols; Spectroscopic analysis; Allelopathy
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Eleven alkylphenols were isolated from the aerial parts of Dactylis glomerata subsp. hispanica, six of them described for the first time. The structural characterization of these compounds has been elucidated by 1D and 2D NMR techniques. The fragmentation patterns of the metabolites obtained by GC-MS analysis allowed the side chain to be elucidated. The allelopathic potential of three alkylphenols, representative of each homologous series of alkylphenols from D. glomerata subsp. hispanica, has been assayed on D. glomerata subsp. hispanica and an herbaceous coexisting species, Phleum subulatum. The bioassay results showed a high auto-stimulation values of germination and root and shoot elongation for D. glomerata subsp. hispanica at high concentrations. (C) 2011 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.
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