Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent

Autor: Badji, Cesar Auguste, Dorland, Jean, Kheloul, Lynda, Bréard, Dimitri, Richomme, Pascal, Kellouche, Abdellah, Azevedo de Souza, Claudio Roberto, Bezerra, Antônio Lourenço, Anton, Sylvia
Přispěvatelé: Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universidade Federal Rural de Pernambuco (UFRPE), Université Mouloud Mammeri [Tizi Ouzou] (UMMTO), Substances d'Origine Naturelle et Analogues Structuraux (SONAS), Université d'Angers (UA), grant finance code 001, Coordenação de Aperfeiçamento de Pessoal de Nivel Superior-Brasil, Université de Rennes (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Molecules
Molecules, MDPI, 2021, 26 (15), pp.4393. ⟨10.3390/molecules26154393⟩
Volume 26
Issue 15
Molecules, Vol 26, Iss 4393, p 4393 (2021)
Molecules, 2021, 26 (15), pp.4393. ⟨10.3390/molecules26154393⟩
ISSN: 1420-3049
Popis: Essential oils of aromatic plants represent an alternative to classical pest control with synthetic chemicals. They are especially promising for the alternative control of stored product pest insects. Here, we tested behavioral and electrophysiological responses of the stored product pest Tribolium confusum, to the essential oil of a Brazilian indigenous plant, Varronia globosa, collected in the Caatinga ecosystem. We analyzed the essential oil by GC-MS, tested the effects of the entire oil and its major components on the behavior of individual beetles in a four-way olfactometer, and investigated responses to these stimuli in electroantennogram recordings (EAG). We could identify 25 constituents in the essential oil of V. globosa, with anethole, caryophyllene and spathulenole as main components. The oil and its main component anethole had repellent effects already at low doses, whereas caryophyllene had only a repellent effect at a high dose. In addition, the essential oil abolished the attractive effect of the T. confusum aggregation pheromone. EAG recordings revealed dose-dependent responses to the individual components and increasing responses to the blend and even more to the entire oil. Our study reveals the potential of anethole and the essential oil of V. globosa in the management of stored product pests.
Databáze: OpenAIRE
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