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Benzoxazinoid Allelochemicals in Wheat: Distribution among Foliage, Roots, and Seeds

AuthorsVillagrasa, Marta; Guillamón, Miriam; Labandeira Robés, Ana Mª; Taberner, Andreu; Eljarrat, Ethel ; Barceló, Damià
Hydroxamic acids
Wheat varieties
Issue Date24-Jun-2006
PublisherAmerican Chemical Society
CitationJournal of Agriculture and Food Chemistry 54(4):1009-1015(2006)
AbstractIn this study, the distribution of eight allelochemicals among the foliage, roots, and seeds of different wheat varieties is reported for two different sampling campaigns, corresponding to two consecutive years. The determination of benzoxazinoid derivatives was performed by combining pressurized liquid extraction−solid-phase extraction followed by liquid chromatography−electrospray mass spectrometry. To the authors' knowledge, there are no previous works about the content of allelochemicals in seed tissue of germinated wheat seedlings. Allelochemicals found in seeds were detected at levels similar to those found in foliage and roots. The results showed that the type of metabolites detected depends strongly on the working up procedure of the plant material, as well as of plant growth stage. A general decrease of the total amount of allelochemical content in the plants was observed with plant age. There was a significant difference in the total amount of benzoxazinoid derivatives in the different wheat varieties analyzed
Description7 pages, 4 figures, 2 tables.
Publisher version (URL)http://dx.doi.org/10.1021/jf050898h
Appears in Collections:(IDAEA) Artículos
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