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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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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. |
format | Online Article Text |
id | pubmed-8347475 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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