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Molecules 2011, 16(3), 2323-2333; doi:10.3390/molecules16032323
Article

An Allelochemical from Myrica gale with Strong Phytotoxic Activity against Highly Invasive Fallopia x bohemica Taxa

1,†,* , 2
, 1
, 1
, 1
, 1
 and 3
1 Universite de Lyon, F-69622 Lyon, France, and Universite Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France 2 Laboratoire de Chimie des Biomolécules et de l'Environnement, Université de Perpignan, F-66860, Perpignan, France 3 Laboratoire d'Ecologie des Hydrosystèmes Fluviaux, Unité Mixte de Recherche 5023, Centre National de la Recherche Scientifique, Université Lyon 1, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France Current address: School of Biological Science, University of Queensland, St. Lucia 4072, QLD, Australia.
* Author to whom correspondence should be addressed.
Received: 31 January 2011 / Revised: 2 March 2011 / Accepted: 9 March 2011 / Published: 10 March 2011
(This article belongs to the Section Metabolites)
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Abstract

We report the identification of the allelochemical 3-(1-oxo-3-phenylpropyl)-1,1,5-trimethylcyclo-hexane-2,4,6-trione, known as myrigalone A, from the fruits and leaves of Myrica gale. The structure of the compound was confirmed by high-resolution techniques (UV, MS and NMR analysis). The compound is phytotoxic towards classical plant species used for allelochemical assays and also against Fallopia x bohemica, a highly invasive plant. Application of either powdered dry leaves or dry fruits of M. gale also showed in vitro phytotoxic activity. We hypothesize that M. gale could be used as a green allelopathic shield to control Fallopia x bohemica invasion, in addition to its potential use as an environmentally friendly herbicide.
Keywords: biological control; Myrica gale; Fallopia; allelopathy; dihydrochalcone; invasive plant biological control; Myrica gale; Fallopia; allelopathy; dihydrochalcone; invasive plant
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Popovici, J.; Bertrand, C.; Jacquemoud, D.; Bellvert, F.; Fernandez, M.P.; Comte, G.; Piola, F. An Allelochemical from Myrica gale with Strong Phytotoxic Activity against Highly Invasive Fallopia x bohemica Taxa. Molecules 2011, 16, 2323-2333.

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