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Role of Methyl Salicylate on Oviposition Deterrence in Arabidopsis thaliana

Groux, Raphaël ; Hilfiker, Olivier ; Gouhier-Darimont, Caroline ; Peñaflor, Maria ; Erb, Matthias ; Reymond, Philippe

In: Journal of Chemical Ecology, 2014, vol. 40, no. 7, p. 754-759

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    Titre
    • Role of Methyl Salicylate on Oviposition Deterrence in Arabidopsis thaliana
    Auteur
    • Groux, Raphaël. Department of Plant Molecular Biology, Unversity of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland
    • Hilfiker, Olivier. Department of Plant Molecular Biology, Unversity of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland
    • Gouhier-Darimont, Caroline. Department of Plant Molecular Biology, Unversity of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland
    • Peñaflor, Maria. Department of Entomology and Acarology, Laboratory of Chemical Ecology and Insect Behavior, Escola Superior de Agricultura "Luiz de Queiroz”, University of São Paulo, Av. Pádua Dias, 11, CP 09, 13418-900, Piracicaba, SP, Brazil
    • Erb, Matthias. Laboratory of Fundamental and Applied Research in Chemical Ecology (FARCE), Institute of Biology, University of Neuchâtel, Rue Emile-Argand, 11, CP 158, CH-2009, Neuchâtel, Switzerland
    • Reymond, Philippe. Department of Plant Molecular Biology, Unversity of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Chemical Ecology, 2014, vol. 40, no. 7, p. 754-759. Springer US; http://www.springer-ny.com
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:325462
    Summary
    Plants attacked by herbivores have evolved different strategies that fend off their enemies. Insect eggs deposited on leaves have been shown to inhibit further oviposition through visual or chemical cues. In some plant species, the volatile methyl salicylate (MeSA) repels gravid insects but whether it plays the same role in the model species Arabidopsis thaliana is currently unknown. Here we showed that Pieris brassicae butterflies laid fewer eggs on Arabidopsis plants that were next to a MeSA dispenser or on plants with constitutively high MeSA emission than on control plants. Surprisingly, the MeSA biosynthesis mutant bsmt1-1 treated with egg extract was still repellent to butterflies when compared to untreated bsmt1-1. Moreover, the expression of BSMT1 was not enhanced by egg extract treatment but was induced by herbivory. Altogether, these results provide evidence that the deterring activity of eggs on gravid butterflies is independent of MeSA emission in Arabidopsis, and that MeSA might rather serve as a deterrent in plants challenged by feeding larvae.