Reference : Perception of aphid infested tomato plant volatiles by the predator Episyrphus balteatus
Scientific journals : Article
Life sciences : Entomology & pest control
Perception of aphid infested tomato plant volatiles by the predator Episyrphus balteatus
Verheggen, François mailto [Université de Liège - ULiège > > Gembloux Agro-Bio Tech >]
Arnaud, Ludovic [ > > ]
Capella, Quentin [ > > ]
Francis, Frédéric mailto [Université de Liège - ULiège > > Gembloux Agro-Bio Tech >]
Haubruge, Eric mailto [Université de Liège - ULiège > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech - Gembloux Agro-Bio Tech >]
Communications in Agricultural and Applied Biological Sciences
Universiteit Gent. Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen
Yes (verified by ORBi)
[en] Tomato ; Volatiles ; Syrphid ; Aphid predator
[en] In a tritrophic interaction including tomato plant (Lycopersicon esculentum Miller), the herbivore Myzus persicae (Sulzer) and the predator Episyrphus balteatus (De Geer), the perception of the tomato plants produced volatile organic compounds (VOC) by Episyrphus balteatus is investigated. In a first step, an odour sampling device has been set up aiming the headspace collection of the tomato plant VOC and their adsorption on Tenax adsorbent cartridges (Supelco®). Following desorption is held using a thermodesorption injector (Gerstel®) coupled with GC-MS. Intact and aphid infested plants are studied for their VOC emissions, as well as the comparison of the VOC emission of different tomato cultivars. These VOC consist mainly in mono- and sesquiterpenes (such as - and -pinene ; -humulene ; …) as well as in C6-volatiles like hexenal in case of infestation by herbivores Once the tomato plants VOC identified and quantified, they are tested for their perception by Episyrphus balteatus using electroantennography (EAG). Accordingly, an EAG device has been installed and configured for the study of VOC using Diptera antennas. The monoterpenes limonene and linalool showed high EAG activity whereas other terpenes like cymene seem to be inactive.

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