Effect of alkaloids on feeding by Phormia regina
- 1 August 1986
- journal article
- research article
- Published by Wiley in Entomologia Experimentalis et Applicata
- Vol. 41 (3) , 299-304
- https://doi.org/10.1111/j.1570-7458.1986.tb00541.x
Abstract
Eight plant‐derived alkaloids are shown to significantly reduce intake of sugar solutions by adult Phormia regina Meigen. The alkaloids differed in degree of inhibition caused, and their relative effectiveness as deterrents was similar with 2, 4, and 6 day old flies. Results are discussed with reference to current ideas on possible modes of action of plant secondary compounds acting as feeding deterrents to phytophagous insects.Résumé: Les effects des alkaloïdes sur l'alimentation de Phormia reginaHuit alcaloïdes réduisent la consommation de solutions sucrées chez les adultes de Phormia regina Meigen. Ces alcaloïdes diffèrent selon le degré d'inhibition induit. Leur efficacité relative en tant que substances dissuadantes est la même pour les mouches agées de 2, 4 ou 6 jours. La spartéine, l'atropine, la tomatine, la quinine et la papavérine sont les plus efficaces, provoquant une baisse de l'alimentation de plus que 80% en 6 h. L'étude démontre clairment que les alcaloïdes végétaux influencent l'alimentation de cette mouche polyphage. Les auteurs discutent des implications de ces résulats sur notre perception des effects des composés végétaux secondaires sur les systèmes sensoriels des insects phytophages.Keywords
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