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

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...

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Autores principales: Badji, Cesar Auguste, Dorland, Jean, Kheloul, Lynda, Bréard, Dimitri, Richomme, Pascal, Kellouche, Abdellah, Azevedo de Souza, Claudio Roberto, Bezerra, Antônio Lourenço, Anton, Sylvia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347475/
https://www.ncbi.nlm.nih.gov/pubmed/34361547
http://dx.doi.org/10.3390/molecules26154393
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author Badji, Cesar Auguste
Dorland, Jean
Kheloul, Lynda
Bréard, Dimitri
Richomme, Pascal
Kellouche, Abdellah
Azevedo de Souza, Claudio Roberto
Bezerra, Antônio Lourenço
Anton, Sylvia
author_facet Badji, Cesar Auguste
Dorland, Jean
Kheloul, Lynda
Bréard, Dimitri
Richomme, Pascal
Kellouche, Abdellah
Azevedo de Souza, Claudio Roberto
Bezerra, Antônio Lourenço
Anton, Sylvia
author_sort Badji, Cesar Auguste
collection PubMed
description 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.
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spelling pubmed-83474752021-08-08 Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent Badji, Cesar Auguste Dorland, Jean Kheloul, Lynda Bréard, Dimitri Richomme, Pascal Kellouche, Abdellah Azevedo de Souza, Claudio Roberto Bezerra, Antônio Lourenço Anton, Sylvia Molecules Article 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. MDPI 2021-07-21 /pmc/articles/PMC8347475/ /pubmed/34361547 http://dx.doi.org/10.3390/molecules26154393 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Badji, Cesar Auguste
Dorland, Jean
Kheloul, Lynda
Bréard, Dimitri
Richomme, Pascal
Kellouche, Abdellah
Azevedo de Souza, Claudio Roberto
Bezerra, Antônio Lourenço
Anton, Sylvia
Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title_full Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title_fullStr Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title_full_unstemmed Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title_short Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent
title_sort behavioral and antennal responses of tribolium confusum to varronia globosa essential oil and its main constituents: perspective for their use as repellent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347475/
https://www.ncbi.nlm.nih.gov/pubmed/34361547
http://dx.doi.org/10.3390/molecules26154393
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