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Molecules

Title:		Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
Author(s):		Badji CA; Dorland J; Kheloul L; Breard D; Richomme P; Kellouche A; Azevedo de Souza CR; Bezerra AL; Anton S;
Address:		"IGEPP, INRAE, Institut Agro, University Rennes, CEDEX, 49045 Angers, France. Universidade Federal do Agreste de Pernambuco, Avenida Bom Pastor, s/n. masculine, Boa Vista, Garanhuns CEP 55292-270, PE, Brazil. Laboratoire de Production, Sauvegarde des Especes Menacees et des Recoltes, Influence des Variations Climatiques, Faculte des Sciences Biologiques et des Sciences Agronomiques, Universite Mouloud Mammeri, Tizi-Ouzou 15000, Algeria. Univ. Angers, SONAS, SFR QUASAV, F-49000 Angers, France"
Journal Title:		Molecules
Year:		2021
Volume:		20210721
Issue:		15
Page Number:		-
DOI:		10.3390/molecules26154393
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"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"
Keywords:		"Animals Arthropod Antennae/*physiology Behavior, Animal/*drug effects *Insect Repellents/chemistry/pharmacology Magnoliopsida/*chemistry *Oils, Volatile/chemistry/pharmacology Tribolium/*physiology aggregation pheromone alternative pest control caatinga p;"
Notes:		"MedlineBadji, Cesar Auguste Dorland, Jean Kheloul, Lynda Breard, Dimitri Richomme, Pascal Kellouche, Abdellah Azevedo de Souza, Claudio Roberto Bezerra, Antonio Lourenco Anton, Sylvia eng grant finance code 001/Coordenacao de Aperfeicamento de Pessoal de Nivel Superior-Brasil (CAPES)/ Travel grant/University Mouloud Mammeri of Tizi Ouzou, Algeria/ Switzerland 2021/08/08 Molecules. 2021 Jul 21; 26(15):4393. doi: 10.3390/molecules26154393"