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Chen Y, Zhang C, Li W, Lan R, Chen R, Hu J, Yang C, Wang P, Tang B, Wang S. Residues of chlorpyrifos in the environment induce resistance in Aedes albopictus by affecting its olfactory system and neurotoxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172425. [PMID: 38643874 DOI: 10.1016/j.scitotenv.2024.172425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/23/2024]
Abstract
Aedes albopictus, a virus-vector pest, is primarily controlled through the use of insecticides. In this study, we investigated the mechanisms of resistance in Ae. albopictus in terms of chlorpyrifos neurotoxicity to Ae. albopictus and its effects on the olfactory system. We assessed Ca2+-Mg2+-ATP levels, choline acetyltransferase (ChAT), Monoamine oxidase (MAO), odorant-binding proteins (OBPs), and olfactory receptor (OR7) gene expression in Ae. albopictus using various assays including Y-shaped tube experiments and DanioVision analysis to evaluate macromotor behavior. Our findings revealed that cumulative exposure to chlorpyrifos reduced the activity of neurotoxic Ca2+-Mg2+-ATPase and ChAT enzymes in Ae. albopictus to varying degrees, suppressed MAO-B enzyme expression, altered OBPs and OR7 expression patterns, as well as affected evasive response, physical mobility, and cumulative locomotor time under chlorpyrifos stress conditions for Ae. albopictus individuals. Consequently, these changes led to decreased feeding ability, reproductive capacity, and avoidance behavior towards natural enemies in Ae. albopictus populations exposed to chlorpyrifos stressors over time. To adapt to unfavorable living environments, Ae. albopictus may develop certain tolerance mechanisms against organophosphorus pesticides. This study provides valuable insights for guiding rational insecticide usage or dosage adjustments targeting the nervous system of Ae. albopictus.
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Affiliation(s)
- Yanrong Chen
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Chen Zhang
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Wen Li
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Ruoyun Lan
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Rufei Chen
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Jingchao Hu
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Chenyu Yang
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Ping Wang
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Bin Tang
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Shigui Wang
- College of life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, People's Republic of China.
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2
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Pu J, Chung H. New and emerging mechanisms of insecticide resistance. CURRENT OPINION IN INSECT SCIENCE 2024; 63:101184. [PMID: 38458436 DOI: 10.1016/j.cois.2024.101184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
The continuous use of insecticides over the last eight decades has led to the development of resistance to these insecticides. Research in the last few decades showed that the mechanisms underlying resistance are diverse but can generally be classified under several modes of resistance such as target-site resistance, metabolic resistance, and penetration resistance. In this review, we highlight new discoveries in insecticide resistance research made over the past few years, including an emerging new mode of resistance, sequestration resistance, where the overexpression of olfactory proteins binds and sequesters insecticides in resistant strains, as well as recent research on how posttranscriptional regulation can impact resistance. Future research will determine the generality of these emerging mechanisms across insect species.
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Affiliation(s)
- Jian Pu
- College of Agriculture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Henry Chung
- Department of Entomology, and Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI 48824, USA.
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3
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Hubbard CB, Murillo AC. Behavioral resistance to insecticides: current understanding, challenges, and future directions. CURRENT OPINION IN INSECT SCIENCE 2024; 63:101177. [PMID: 38355042 DOI: 10.1016/j.cois.2024.101177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Identifying and understanding behavioral resistance to insecticides is vital for maintaining global food security, public health, and ecological balance. Behavioral resistance has been documented to occur in a multitude of insect taxa dating back to the 1940s, but has not received significant research attention due primarily to the complexities of studying insect behavior and a lack of any clear definition of behavioral resistance. In recent years, a systematic effort to investigate the mechanism(s) of behavioral resistance in pest taxa (e.g. the German cockroach and the house fly) has been undertaken. Here, we practically define behavioral resistance, describe the efforts taken by research groups to elucidate resistance mechanisms, and provide insight on designing appropriate bioassays for investigating behavioral resistance mechanisms in the future.
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Affiliation(s)
- Caleb B Hubbard
- Department of Entomology, University of California, Riverside, CA 92521, USA.
| | - Amy C Murillo
- Department of Entomology, University of California, Riverside, CA 92521, USA
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Jing TX, Jiang SD, Tang XP, Guo PY, Wang L, Wang JJ, Wei DD. Overexpression of an Integument Esterase Gene LbEST-inte4 Infers the Malathion Detoxification in Liposcelis bostrychophila (Psocoptera: Liposcelididae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11221-11229. [PMID: 38703356 DOI: 10.1021/acs.jafc.4c02436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Abstract
Liposcelis bostrychophila, commonly known as booklouse, is an important stored-product pest worldwide. Studies have demonstrated that booklices have developed resistance to several insecticides. In this study, an integument esterase gene, LbEST-inte4, with upregulated expression, was characterized in L. bostrychophila. Knockdown of LbEST-inte4 resulted in a substantial increase in the booklice susceptibility to malathion. Overexpression of LbEST-inte4 in Drosophila melanogaster significantly enhanced its malathion tolerance. Molecular modeling and docking analysis suggested potential interactions between LbEST-inte4 and malathion. When overexpressed LbEST-inte4 in Sf9 cells, a notable elevation in esterase activity and malathion tolerance was observed. HPLC analysis indicated that the LbEST-inte4 enzyme could effectively degrade malathion. Taken together, the upregulated LbEST-inte4 appears to contribute to malathion tolerance in L. bostrychophila by facilitating the depletion of malathion. This study elucidates the molecular mechanism underlying malathion detoxification and provides the foundations for the development of effective prevention and control measures against psocids.
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Affiliation(s)
- Tian-Xing Jing
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Shi-Die Jiang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Xin-Ping Tang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Peng-Yu Guo
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Lin Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China
| | - Dan-Dan Wei
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China
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5
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Wang H, Zhao R, Gao J, Xiao X, Yin X, Hu S, Zhang Y, Liang P, Gu S. Two cuticle-enriched chemosensory proteins confer multi-insecticide resistance in Spodoptera frugiperda. Int J Biol Macromol 2024; 266:130941. [PMID: 38521305 DOI: 10.1016/j.ijbiomac.2024.130941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/10/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
Recent studies revealed that insect chemosensory proteins (CSPs) both play essential roles in insect olfaction and insect resistance. However, functional evidence supporting the crosslink between CSP and insecticide resistance remains unexplored. In the present study, 22 SfruCSP transcripts were identified from the fall armyworm (FAW) and SfruCSP1 and SfruCSP2 are enriched in the larval cuticle and could be induced by multiple insecticides. Both SfruCSP1 and SfruCSP2 are highly expressed in the larval inner endocuticle and outer epicuticle, and these two proteins exhibited high binding affinities with three insecticides (chlorfenapyr, chlorpyrifos and indoxacarb). The knockdown of SfruCSP1 and SfruCSP2 increased the susceptibility of FAW larvae to the above three insecticides, and significantly increased the penetration ratios of these insecticides. Our in vitro and in vivo evidence suggests that SfruCSP1 and SfruCSP2 are insecticide binding proteins and confer FAW larval resistance to chlorfenapyr, chlorpyrifos and indoxacarb by an insecticide sequestration mechanism. The study should aid in the exploration of larval cuticle-enriched CSPs for insect resistance management.
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Affiliation(s)
- Huanhuan Wang
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Rui Zhao
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Jie Gao
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Xing Xiao
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Xinhui Yin
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Shiyuan Hu
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Yongjun Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Pei Liang
- Department of Entomology, China Agricultural University, Beijing, 100193, China
| | - Shaohua Gu
- Department of Entomology, China Agricultural University, Beijing, 100193, China.
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6
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Gouesbet G, Renault D, Derocles SAP, Colinet H. Strong resistance to β-cyfluthrin in a strain of the beetle Alphitobius diaperinus: a de novo transcriptome analysis. INSECT SCIENCE 2024. [PMID: 38632693 DOI: 10.1111/1744-7917.13368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/09/2024] [Accepted: 03/13/2024] [Indexed: 04/19/2024]
Abstract
The lesser mealworm, Alphitobius diaperinus, is an invasive tenebrionid beetle and a vector of pathogens. Due to the emergence of insecticide resistance and consequent outbreaks that generate significant phytosanitary and energy costs for poultry farmers, it has become a major insect pest worldwide. To better understand the molecular mechanisms behind this resistance, we studied a strain of A. diaperinus from a poultry house in Brittany that was found to be highly resistant to the β-cyfluthrin. The strain survived β-cyfluthrin exposures corresponding to more than 100 times the recommended dose. We used a comparative de novo RNA-Seq approach to explore genes expression in resistant versus sensitive strains. Our de novo transcriptomic analyses showed that responses to β-cyfluthrin likely involved a whole set of resistance mechanisms. Genes related to detoxification, metabolic resistance, cuticular hydrocarbon biosynthesis and proteolysis were found to be constitutively overexpressed in the resistant compared to the sensitive strain. Follow-up enzymatic assays confirmed that the resistant strain exhibited high basal activities for detoxification enzymes such as cytochrome P450 monooxygenase and glutathione-S-transferase. The in-depth analysis of differentially expressed genes suggests the involvement of complex regulation of signaling pathways. Detailed knowledge of these resistance mechanisms is essential for the establishment of effective pest control.
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Affiliation(s)
- Gwenola Gouesbet
- CNRS, ECOBIO (Ecosystèmes, Biodiversité, Évolution)-UMR 6553, University of Rennes, Rennes, France
| | - David Renault
- CNRS, ECOBIO (Ecosystèmes, Biodiversité, Évolution)-UMR 6553, University of Rennes, Rennes, France
- Institut Universitaire de France, 1 rue Descartes, CEDEX 05, Paris, France
| | - Stéphane A P Derocles
- CNRS, ECOBIO (Ecosystèmes, Biodiversité, Évolution)-UMR 6553, University of Rennes, Rennes, France
| | - Hervé Colinet
- CNRS, ECOBIO (Ecosystèmes, Biodiversité, Évolution)-UMR 6553, University of Rennes, Rennes, France
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7
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Chen Y, Lafleur C, Smith RJ, Kaur D, Driscoll BT, Bede JC. Trichoplusia ni Transcriptomic Responses to the Phytosaponin Aglycone Hederagenin: Sex-Related Differences. J Chem Ecol 2024; 50:168-184. [PMID: 38443712 DOI: 10.1007/s10886-024-01482-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 03/07/2024]
Abstract
Many plant species, particularly legumes, protect themselves with saponins. Previously, a correlation was observed between levels of oleanolic acid-derived saponins, such as hederagenin-derived compounds, in the legume Medicago truncatula and caterpillar deterrence. Using concentrations that reflect the foliar levels of hederagenin-type saponins, the sapogenin hederagenin was not toxic to 4th instar caterpillars of the cabbage looper Trichoplusia ni nor did it act as a feeding deterrent. Female caterpillars consumed more diet than males, presumably to obtain the additional nutrients required for oogenesis, and are, thus, exposed to higher hederagenin levels. When fed the hederagenin diet, male caterpillars expressed genes encoding trypsin-like proteins (LOC113500509, LOC113501951, LOC113501953, LOC113501966, LOC113501965, LOC113499659, LOC113501950, LOC113501948, LOC113501957, LOC113501962, LOC113497819, LOC113501946, LOC113503910) as well as stress-responsive (LOC113503484, LOC113505107) proteins and cytochrome P450 6B2-like (LOC113493761) at higher levels than females. In comparison, female caterpillars expressed higher levels of cytochrome P450 6B7-like (LOC113492289). Bioinformatic tools predict that cytochrome P450s could catalyze the oxygenation of hederagenin which would increase the hydrophilicity of the compound. Expression of a Major Facilitator Subfamily (MFS) transporter (LOC113492899) showed a hederagenin dose-dependent increase in gene expression suggesting that this transporter may be involved in sapogenin efflux. These sex-related differences in feeding and detoxification should be taken into consideration in insecticide evaluations to minimize pesticide resistance.
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Affiliation(s)
- Yinting Chen
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Christine Lafleur
- Department of Animal Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Ryan J Smith
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Diljot Kaur
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Brian T Driscoll
- Natural Resource Sciences, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Jacqueline C Bede
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada.
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8
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Zhang C, Li Y, Qiu T, Wang Y, Wang H, Wang K, Dai W. Functional Characterization of CYP6QE1 and CYP6FV21 in Resistance to λ-Cyhalothrin and Imidacloprid in Bradysia odoriphaga. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2925-2934. [PMID: 38291565 DOI: 10.1021/acs.jafc.3c08807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Cytochrome P450 monooxygenases (P450s) belong to a family of metabolic enzymes that are involved in the detoxification of insecticides. In this study, our bioassay results showed that a field-collected population of Bradysia odoriphaga displayed a moderate resistance to λ-cyhalothrin and imidacloprid. Compared to susceptible population, CYP6QE1 and CYP6FV21 were significantly overexpressed in the field population. The expression of CYP6QE1 and CYP6FV21 was more abundant in the third and fourth larval stages, and CYP6QE1 and CYP6FV21 were most highly expressed in the midgut and Malpighian tubules. Exposure to λ-cyhalothrin and imidacloprid significantly increased the expression levels of CYP6QE1 and CYP6FV21. Furthermore, the silencing of CYP6QE1 and CYP6FV21 significantly increased the susceptibility of B. odoriphaga larvae to λ-cyhalothrin and imidacloprid. The overexpression of CYP6QE1 and CYP6FV21 significantly enhanced the tolerance of transgenic Drosophila melanogaster lines to λ-cyhalothrin and imidacloprid. In addition, molecular docking revealed that these two P450 proteins have strong binding affinity toward λ-cyhalothrin and imidacloprid insecticides. Taken together, these results indicate that the overexpression of CYP6QE1 and CYP6FV21 is responsible for resistance to λ-cyhalothrin and imidacloprid in B. odoriphaga.
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Affiliation(s)
- Chunni Zhang
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yao Li
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tian Qiu
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuan Wang
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hao Wang
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Kaihua Wang
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wu Dai
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
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9
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Moural TW, Koirala B K S, Bhattarai G, He Z, Guo H, Phan NT, Rajotte EG, Biddinger DJ, Hoover K, Zhu F. Architecture and potential roles of a delta-class glutathione S-transferase in protecting honey bee from agrochemicals. CHEMOSPHERE 2024; 350:141089. [PMID: 38163465 DOI: 10.1016/j.chemosphere.2023.141089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
The European honey bee, Apis mellifera, serves as the principle managed pollinator species globally. In recent decades, honey bee populations have been facing serious health threats from combined biotic and abiotic stressors, including diseases, limited nutrition, and agrochemical exposure. Understanding the molecular mechanisms underlying xenobiotic adaptation of A. mellifera is critical, considering its extensive exposure to phytochemicals and agrochemicals present in the environment. In this study, we conducted a comprehensive structural and functional characterization of AmGSTD1, a delta class glutathione S-transferase (GST), to unravel its roles in agrochemical detoxification and antioxidative stress responses. We determined the 3-dimensional (3D) structure of a honey bee GST using protein crystallography for the first time, providing new insights into its molecular structure. Our investigations revealed that AmGSTD1 metabolizes model substrates, including 1-chloro-2,4-dinitrobenzene (CDNB), p-nitrophenyl acetate (PNA), phenylethyl isothiocyanate (PEITC), propyl isothiocyanate (PITC), and the oxidation byproduct 4-hydroxynonenal (HNE). Moreover, we discovered that AmGSTD1 exhibits binding affinity with the fluorophore 8-Anilinonaphthalene-1-sulfonic acid (ANS), which can be inhibited with various herbicides, fungicides, insecticides, and their metabolites. These findings highlight the potential contribution of AmGSTD1 in safeguarding honey bee health against various agrochemicals, while also mitigating oxidative stress resulting from exposure to these substances.
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Affiliation(s)
- Timothy W Moural
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - Sonu Koirala B K
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - Gaurab Bhattarai
- Institute of Plant Breeding, Genetics & Genomics, University of Georgia, Athens, GA 30602, USA.
| | - Ziming He
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - Haoyang Guo
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - Ngoc T Phan
- Department of Entomology and Plant Pathology, University of Arkansas, AR 72701, USA; Research Center for Tropical Bees and Beekeeping, Vietnam National University of Agriculture, Gia Lam, Hanoi 100000, Viet Nam.
| | - Edwin G Rajotte
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - David J Biddinger
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA; Penn State Fruit Research and Extension Center, Biglerville, PA 17307, USA.
| | - Kelli Hoover
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
| | - Fang Zhu
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA; Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA.
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10
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Edison A, Michelbach A, Sowade D, Kertzel H, Schmidt L, Schäfer M, Lysander M, Nauen R, Duchen P, Xu S. Evidence of active oviposition avoidance to systemically applied imidacloprid in the Colorado potato beetle. INSECT SCIENCE 2024. [PMID: 38282249 DOI: 10.1111/1744-7917.13319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/08/2023] [Accepted: 12/07/2023] [Indexed: 01/30/2024]
Abstract
Agricultural pests can develop behavioral resistance to insecticides by choosing to feed or oviposit on insecticide-free hosts. As young larvae have relatively low mobility, oviposition preferences from female adults may play a critical role in shaping the evolutionary trajectory of pest populations. While oviposition avoidance of insecticide-treated hosts was found in different agriculture pests, it remains unclear whether female adults actively choose to occupy insecticide-free hosts. To address this question, we investigated feeding and oviposition preferences between imidacloprid-treated and imidacloprid-free plants in the Colorado potato beetle, Leptinotarsa decemlineata Say, a major potato pest. We performed behavioral choice assays on two strains that differed in both fecundity and insecticide resistance. We found that one strain preferred to feed on the insecticide-free plants and that this preference is not innate. Meanwhile, the other strain chose plants for feeding and oviposition randomly. Further analyses of the moving patterns of the beetles suggested that the oviposition preference in the first strain is likely due to active learning.
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Affiliation(s)
- Alitha Edison
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
| | - Anja Michelbach
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
- Current address: Department of Cell and Tissue Dynamics, Münster, Germany
| | - Dominique Sowade
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
| | - Hanna Kertzel
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
| | - Luise Schmidt
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
| | - Martin Schäfer
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
| | - Maximillian Lysander
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
| | - Ralf Nauen
- Crop Science Division, Research and Development Department, Bayer AG, Monheim, Germany
| | - Pablo Duchen
- Institute for Evolution and Biodiversity, University of Münster, Hüfferstraße 1, Münster, 48149, Germany
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
| | - Shuqing Xu
- Institute of Organismic and Molecular Evolution (iomE), University of Mainz, Hanns-Dieter-Hüsch-Weg 15, Mainz, 55128, Germany
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11
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Zeng B, Zhang F, Liu YT, Wu SF, Bass C, Gao CF. Symbiotic bacteria confer insecticide resistance by metabolizing buprofezin in the brown planthopper, Nilaparvata lugens (Stål). PLoS Pathog 2023; 19:e1011828. [PMID: 38091367 PMCID: PMC10718449 DOI: 10.1371/journal.ppat.1011828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Buprofezin, a chitin synthesis inhibitor, is widely used to control several economically important insect crop pests. However, the overuse of buprofezin has led to the evolution of resistance and exposed off-target organisms present in agri-environments to this compound. As many as six different strains of bacteria isolated from these environments have been shown to degrade buprofezin. However, whether insects can acquire these buprofezin-degrading bacteria from soil and enhance their own resistance to buprofezin remains unknown. Here we show that field strains of the brown planthopper, Nilaparvata lugens, have acquired a symbiotic bacteria, occurring naturally in soil and water, that provides them with resistance to buprofezin. We isolated a symbiotic bacterium, Serratia marcescens (Bup_Serratia), from buprofezin-resistant N. lugens and showed it has the capacity to degrade buprofezin. Buprofezin-susceptible N. lugens inoculated with Bup_Serratia became resistant to buprofezin, while antibiotic-treated N. lugens became susceptible to this insecticide, confirming the important role of Bup_Serratia in resistance. Sequencing of the Bup_Serratia genome identified a suite of candidate genes involved in the degradation of buprofezin, that were upregulated upon exposure to buprofezin. Our findings demonstrate that S. marcescens, an opportunistic pathogen of humans, can metabolize the insecticide buprofezin and form a mutualistic relationship with N. lugens to enhance host resistance to buprofezin. These results provide new insight into the mechanisms underlying insecticide resistance and the interactions between bacteria, insects and insecticides in the environment. From an applied perspective they also have implications for the control of highly damaging crop pests.
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Affiliation(s)
- Bin Zeng
- College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Jiangsu, People’s Republic of China
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Penryn Campus, Penryn, Cornwall, United Kingdom
| | - Fan Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Jiangsu, People’s Republic of China
| | - Ya-Ting Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Jiangsu, People’s Republic of China
| | - Shun-Fan Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Jiangsu, People’s Republic of China
| | - Chris Bass
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Penryn Campus, Penryn, Cornwall, United Kingdom
| | - Cong-Fen Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Jiangsu, People’s Republic of China
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12
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Gao P, Tan JJ, Su S, Wang SJ, Peng X, Chen MH. Overexpression of the Chemosensory Protein CSP7 Gene Contributed to Lambda-Cyhalothrin Resistance in the Bird Cherry-Oat Aphid Rhopalosiphum padi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37922215 DOI: 10.1021/acs.jafc.3c05100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Lambda-cyhalothrin is one of the most important pyrethroids used for controlling wheat aphids. Extensive spraying of lambda-cyhalothrin has led to the development of high resistance to this pyrethroid inRhopalosiphum padi. The mechanisms of resistance are complex and not fully understood. In this study, we found that a laboratory-selected strain of R. padi showed extremely high resistance to lambda-cyhalothrin and cross-resistance to bifenthrin and deltamethrin. The expression level of RpCSP7 was significantly elevated in the resistant strain compared to that in the susceptible strain. Knockdown of RpCSP7 increased the susceptibility of R. padi to lambda-cyhalothrin, whereas the susceptibility to bifenthrin and deltamethrin was not significantly changed. The recombinant RpCSP7 displayed a high affinity for lambda-cyhalothrin but no affinities to bifenthrin and deltamethrin. These findings suggest that the overexpression of RpCSP7 contributes to the resistance of R. padi to lambda-cyhalothrin. This study provides valuable insights into CSP-mediated insecticide resistance in insects.
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Affiliation(s)
- Ping Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jun-Jie Tan
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Sha Su
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Su-Ji Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiong Peng
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mao-Hua Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
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13
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Takaku Y, Shiraki K, Suzuki C, Takehara S, Nishii H, Sasaki T, Hariyama T. Route of pesticide spread on the body surface of Blattella germanica (Linnaeus): a NanoSuit-energy dispersive X-ray spectroscopy analysis. Sci Rep 2023; 13:14335. [PMID: 37653069 PMCID: PMC10471590 DOI: 10.1038/s41598-023-41474-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023] Open
Abstract
Numerous studies have focussed on the mechanisms of entry of pesticides into insect body parts such as oral intake, penetration through the integument of the body wall, and inhalation through spiracles. However, little is known about how insecticides spread to the points of entry or the paths on the body surface that are used to reach the target sites. In this study, elemental signals of pesticide-mimicking test solutions were tracked and their routes of spreading in experimental insects (Blattella germanica L.) were investigated using NanoSuit (a method of surface modification) and energy dispersive X-ray spectroscopy, combined with high-resolution scanning electron microscopy. When the test solution initially adhered to the dorsal and/or ventral body surface, it tended to spread horizontally to reach lateral plates. Whereas, when the solution directly adhered to the anterior side of the lateral plates, it spread to posterior segments. In this case, however, spreading in the opposite direction (i.e., the solution directly adhered to the posterior side of the lateral plates) was interrupted at a boundary erected by different groups of fine structures; each protrusion was large, and the arrangement was rather dense in the posterior segments. Morphological features of these fine structures and chemical characteristics of the hydrophobic surface substances potentially regulate the strength of the capillary force, which determines pesticide spreading.
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Affiliation(s)
- Yasuharu Takaku
- Laboratory of Bio-Design, Department of Agricultural Innovation for Sustainable Society, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa, 243-0034, Japan.
- NanoSuit Inc., 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.
| | - Katsumi Shiraki
- Research and Development Division, Fumakilla Limited, Umehara 1-11-13, Hatsukaichi, Hiroshima, 739-0494, Japan
| | - Chiaki Suzuki
- Preeminent Medical Photonics Education & Research Center, Institute for NanoSuit Research, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Sayuri Takehara
- Preeminent Medical Photonics Education & Research Center, Institute for NanoSuit Research, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Hiroyuki Nishii
- Research and Development Division, Fumakilla Limited, Umehara 1-11-13, Hatsukaichi, Hiroshima, 739-0494, Japan
| | - Tomonori Sasaki
- Research and Development Division, Fumakilla Limited, Umehara 1-11-13, Hatsukaichi, Hiroshima, 739-0494, Japan
| | - Takahiko Hariyama
- NanoSuit Inc., 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.
- Preeminent Medical Photonics Education & Research Center, Institute for NanoSuit Research, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
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14
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Abbasi E, Yazdani Z, Daliri S, Moemenbellah-Fard MD. Organochlorine knockdown-resistance (kdr) association in housefly ( Musca domestica): A systematic review and meta-analysis. Parasite Epidemiol Control 2023; 22:e00310. [PMID: 37638112 PMCID: PMC10450350 DOI: 10.1016/j.parepi.2023.e00310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 02/12/2023] [Accepted: 05/22/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Although house flies (Musca domestica) do not directly cause disease in humans, they transmit pathogens to them, which provide the basis for many diseases. The main way to deal with this insect is to use insecticides. Due to the resistance from insecticides, the fight against house flies has been hampered. This study aimed to determine the prevalence of knockdown resistance against organochlorine insecticides in house flies worldwide. Methods This study was conducted via a systematic review and meta-analysis to investigate the prevalence of knockdown resistance against organochlorine insecticides in house flies. Accordingly, by searching the databases of Web of Science, PubMed, Scopus, Proquest, Bioone, and Embase, all published articles were extracted, and reviewed until the end of May 2022. Statistical data analysis was performed using the random-effects model in the meta-analysis, meta-regression, and I2 index. Results Nine studies entered the meta-analysis process. Based on this, the prevalence of knockdown resistance against organochlorine insecticide in house flies was estimated to be 49.1%. Meta-regression showed that the prevalence of knockdown resistance increased with increasing years of study but decreased with increasing sample size. Conclusion According to the findings, about 50% of house flies have knockdown resistance against organochlorine insecticide. As a result, it is necessary to adopt effective and combined methods to combat this insect to control it and prevent the transmission of diseases caused by it.
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Affiliation(s)
- Ebrahim Abbasi
- Dept. of Biology and Control of Disease Vectors, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Yazdani
- Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran
| | - Salman Daliri
- Clinical Research Development Unit, Imam Hossein Hospital, Shahrood University of Medical Sciences, Shahrood, Iran
| | - Mohammad Djaefar Moemenbellah-Fard
- Research Center for Health Sciences, Institute of Health, Dept. of Biology and Control of Disease Vectors, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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15
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Jacobs E, Chrissian C, Rankin-Turner S, Wear M, Camacho E, Broderick NA, McMeniman CJ, Stark RE, Casadevall A. Cuticular profiling of insecticide resistant Aedes aegypti. Sci Rep 2023; 13:10154. [PMID: 37349387 PMCID: PMC10287657 DOI: 10.1038/s41598-023-36926-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023] Open
Abstract
Insecticides have made great strides in reducing the global burden of vector-borne disease. Nonetheless, serious public health concerns remain because insecticide-resistant vector populations continue to spread globally. To circumvent insecticide resistance, it is essential to understand all contributing mechanisms. Contact-based insecticides are absorbed through the insect cuticle, which is comprised mainly of chitin polysaccharides, cuticular proteins, hydrocarbons, and phenolic biopolymers sclerotin and melanin. Cuticle interface alterations can slow or prevent insecticide penetration in a phenomenon referred to as cuticular resistance. Cuticular resistance characterization of the yellow fever mosquito, Aedes aegypti, is lacking. In the current study, we utilized solid-state nuclear magnetic resonance spectroscopy, gas chromatography/mass spectrometry, and transmission electron microscopy to gain insights into the cuticle composition of congenic cytochrome P450 monooxygenase insecticide resistant and susceptible Ae. aegypti. No differences in cuticular hydrocarbon content or phenolic biopolymer deposition were found. In contrast, we observed cuticle thickness of insecticide resistant Ae. aegypti increased over time and exhibited higher polysaccharide abundance. Moreover, we found these local cuticular changes correlated with global metabolic differences in the whole mosquito, suggesting the existence of novel cuticular resistance mechanisms in this major disease vector.
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16
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Juache-Villagrana AE, Ponce-Garcia G, Gonzalez-Escandon MDJ, Vazquez-Dominguez IF, Castro-Bautista AG, Lopez-Monroy B, Rodriguez-Sanchez IP, Ojeda MGA, Flores AE. Status of Acaricide Resistance and Detecting the Knockdown Resistance Mutation T2134A in the Cattle Tick Rhipicephalus microplus (Acari: Ixodidae) from Northeastern Mexico. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2023; 39:122-128. [PMID: 37364181 DOI: 10.2987/23-7113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Rhipicephalus microplus is the most important tick in veterinary medicine, given its repercussions on animal production. The principal strategy to avoid adverse effects associated with R. microplus is the chemical control of tick populations through organosynthetic acaricides. Therefore, monitoring susceptibility to acaricides is paramount in any control program. This study aimed to analyze the resistance status of 2 populations of R. microplus from northeastern Mexico to the organochlorine (OC) lindane, organophosphates (OP) coumaphos, chlorfenvinphos, diazinon, and chlorpyrifos, and the synthetic pyrethroids (SPs) flumethrin, deltamethrin, and cypermethrin. Discriminating doses (DD) of each acaricide were used in the larval packet bioassay (LPT). Additionally, the presence of the knockdown resistance (kdr) mutation T2134A associated with pyrethroid resistance was evaluated using allele-specific polymerase chain reaction (PCR). The populations of R. microplus showed a high frequency of resistance to SP, with mortality rates of less than 5%; they also showed resistance to the OPs (diazinon and chlorpyrifos) with mortality rates ranging from 1.29% to 34.62%; meanwhile, they were susceptible to coumaphos and chlorfenvinphos. Mortality rates higher than 66% were observed for lindane, indicating susceptibility. The mutant allele of the kdr mutation T2134A was detected in 75% and 100% of the pools analyzed. The populations studied presented a highly resistant profile to pyrethroids, with the presence of the kdr mutant allele A2134. The susceptibility to the organophosphates such as coumaphos and chlorfenvinphos of R. microplus from northeastern Mexico should be noted.
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17
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Araújo MF, Castanheira EMS, Sousa SF. The Buzz on Insecticides: A Review of Uses, Molecular Structures, Targets, Adverse Effects, and Alternatives. Molecules 2023; 28:molecules28083641. [PMID: 37110875 PMCID: PMC10144373 DOI: 10.3390/molecules28083641] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Insecticides play a critical role in controlling the spread of insect-borne diseases and preserving crop health. These chemical substances are specifically formulated to kill or manage insect populations. Over the years, various types of insecticides have been developed, including organophosphates, carbamates, pyrethroids, and neonicotinoids, each with unique modes of action, physiological targets, and efficacy. Despite the advantages that insecticides offer, it is imperative to recognize the potential consequences on non-target species, the environment, and human health. It is therefore crucial to follow recommended label instructions and employ integrated pest management practices for the judicious use of insecticides. This review article provides an in-depth examination of the various types of insecticides, including their modes of action, physiological targets, environmental and human health impacts, and alternatives. The aim is to furnish a comprehensive overview of insecticides and to emphasize the significance of responsible and sustainable utilization.
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Affiliation(s)
- Maria F Araújo
- UCIBIO/REQUIMTE, BioSIM-Department of Medicine, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Elisabete M S Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Sérgio F Sousa
- UCIBIO/REQUIMTE, BioSIM-Department of Medicine, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
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18
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Schwartz M, Boichot V, Fraichard S, Muradova M, Senet P, Nicolai A, Lirussi F, Bas M, Canon F, Heydel JM, Neiers F. Role of Insect and Mammal Glutathione Transferases in Chemoperception. Biomolecules 2023; 13:biom13020322. [PMID: 36830691 PMCID: PMC9953322 DOI: 10.3390/biom13020322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Glutathione transferases (GSTs) are ubiquitous key enzymes with different activities as transferases or isomerases. As key detoxifying enzymes, GSTs are expressed in the chemosensory organs. They fulfill an essential protective role because the chemosensory organs are located in the main entry paths of exogenous compounds within the body. In addition to this protective function, they modulate the perception process by metabolizing exogenous molecules, including tastants and odorants. Chemosensory detection involves the interaction of chemosensory molecules with receptors. GST contributes to signal termination by metabolizing these molecules. By reducing the concentration of chemosensory molecules before receptor binding, GST modulates receptor activation and, therefore, the perception of these molecules. The balance of chemoperception by GSTs has been shown in insects as well as in mammals, although their chemosensory systems are not evolutionarily connected. This review will provide knowledge supporting the involvement of GSTs in chemoperception, describing their localization in these systems as well as their enzymatic capacity toward odorants, sapid molecules, and pheromones in insects and mammals. Their different roles in chemosensory organs will be discussed in light of the evolutionary advantage of the coupling of the detoxification system and chemosensory system through GSTs.
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Affiliation(s)
- Mathieu Schwartz
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Valentin Boichot
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Stéphane Fraichard
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mariam Muradova
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Patrick Senet
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Adrien Nicolai
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Frederic Lirussi
- UMR 1231, Lipides Nutrition Cancer, INSERM, 21000 Dijon, France
- UFR des Sciences de Santé, Université de Bourgogne Franche-Comté, 25000 Besançon, France
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalo-Universitaire Besançon, 25000 Besançon, France
| | - Mathilde Bas
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Francis Canon
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Jean-Marie Heydel
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Fabrice Neiers
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
- Correspondence:
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19
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Renault D, Elfiky A, Mohamed A. Predicting the insecticide-driven mutations in a crop pest insect: Evidence for multiple polymorphisms of acetylcholinesterase gene with potential relevance for resistance to chemicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18937-18955. [PMID: 36219281 DOI: 10.1007/s11356-022-23309-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
The silverleaf whitefly Bemisia tabaci (Gennadius, 1889) (Homoptera: Aleyrodidae) is a serious invasive herbivorous insect pest worldwide. The excessive use of pesticides has progressively selected B. tabaci specimens, reducing the effectiveness of the treatments, and ultimately ending in the selection of pesticide-resistant strains. The management of this crop pest has thus become challenging owing to the level of resistance to all major classes of recommended insecticides. Here, we used in silico techniques for detecting sequence polymorphisms in ace1 gene from naturally occurring B. tabaci variants, and monitor the presence and frequency of the detected putative mutations from 30 populations of the silverleaf whitefly from Egypt and Pakistan. We found several point mutations in ace1-type acetylcholinesterase (ace1) in the studied B. tabaci variants naturally occurring in the field. By comparing ace1 sequence data from an organophosphate-susceptible and an organophosphate-resistant strains of B. tabaci to ace1 sequence data retrieved from GenBank for that species and to nucleotide polymorphisms from other arthropods, we identified novel mutations that could potentially influence insecticide resistance. Homology modeling and molecular docking analyses were performed to determine if the mutation-induced changes in form 1 acetylcholinesterase (AChE1) structure could confer resistance to carbamate and organophosphate insecticides. Mutations had small effects on binding energy (ΔGb) interactions between mutant AChE1 and insecticides; they altered the conformation of the peripheral anionic site of AChE1, and modified the enzyme surface, and these changes have potential effects on the target-site sensitivity. Altogether, the results from this study provide information on genic variants of B. tabaci ace1 for future monitoring insecticide resistance development and report a potential case of environmentally driven gene variations.
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Affiliation(s)
- David Renault
- University of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR, 6553, Rennes, France.
- Institut Universitaire de France, 1 rue Descartes, 75231, Paris Cedex 05, France.
| | - Abdo Elfiky
- Biophysics Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Amr Mohamed
- Department of Entomology, Faculty of Science, Cairo University, Giza, 12613, Egypt
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20
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Jacobs E, Chrissian C, Rankin-Turner S, Wear M, Camacho E, Scott JG, Broderick NA, McMeniman CJ, Stark RE, Casadevall A. Cuticular profiling of insecticide resistant Aedes aegypti. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.13.523989. [PMID: 36712033 PMCID: PMC9882251 DOI: 10.1101/2023.01.13.523989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Insecticides have made great strides in reducing the global burden of vector-borne disease. Nonetheless, serious public health concerns remain because insecticide-resistant vector populations continue to spread globally. To circumvent insecticide resistance, it is essential to understand all contributing mechanisms. Contact-based insecticides are absorbed through the insect cuticle, which is comprised mainly of chitin polysaccharides, cuticular proteins, hydrocarbons, and phenolic biopolymers sclerotin and melanin. Cuticle interface alterations can slow or prevent insecticide penetration in a phenomenon referred to as cuticular resistance. Cuticular resistance characterization of the yellow fever mosquito, Aedes aegypti , is lacking. In the current study, we utilized solid-state Nuclear Magnetic Resonance (ssNMR) spectroscopy, gas chromatography/mass spectrometry (GC-MS), and transmission electron microscopy (TEM) to gain insights into the cuticle composition of congenic cytochrome P450 monooxygenase insecticide resistant and susceptible Ae. aegypti . No differences in cuticular hydrocarbon content or phenolic biopolymer deposition were found. In contrast, we observed cuticle thickness of insecticide resistant Ae. aegypti increased over time and exhibited higher polysaccharide abundance. Moreover, we found these local cuticular changes correlated with global metabolic differences in the whole mosquito, suggesting the existence of novel cuticular resistance mechanisms in this major disease vector.
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Affiliation(s)
| | - Christine Chrissian
- The City College of New York and CUNY Institute for Macromolecular Assemblies
| | | | - Maggie Wear
- Johns Hopkins University Bloomberg School of Public Health
| | - Emma Camacho
- Johns Hopkins University Bloomberg School of Public Health
| | | | | | | | - Ruth E. Stark
- The City College of New York and CUNY Institute for Macromolecular Assemblies
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21
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Luong TTA, Downes SJ, Perkins LE, Zalucki MP. Drop-off behaviour of Bt-resistant and Bt-susceptible Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) larvae on Bt-cotton and non-Bt cotton plants. BULLETIN OF ENTOMOLOGICAL RESEARCH 2022; 112:604-612. [PMID: 35199633 DOI: 10.1017/s0007485321001206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The highest natural mortality rate of larval Lepidoptera in field populations occurs in the first instar, but it is highly variable. The pattern and degree of survival is not easily predicted but depends on their ability to establish on host plants. Lepidopteran larval dispersal behaviour, known as 'drop-off', happens when the host is unsuitable for larvae to settle and begin feeding. Understanding drop-off behaviour of Helicoverpa armigera (Hübner) with and without physiological resistance to Bt toxins on Bt and non-Bt cotton plants is an important component for resistance management strategies for this insect. We examined the drop-off behaviour of H. armigera to determine: (1) whether they move the same way or differently in response to Bt and non-Bt, and (2) could H. armigera larvae detect Bt toxin levels in cotton plants or did they move independently of toxin levels? In this study, we assessed the drop-off behaviour of Bt-resistant and Bt-susceptible H. armigera neonates on artificial diets and cotton plants with and without Bt toxin during the first 12 h after hatching. Bt-resistant and Bt-susceptible H. armigera neonates behaved differently on Bt and non-Bt substrates. The percentages of Bt-resistant larvae that dropped off Bt and non-Bt cotton plants were not significantly different. In contrast, significantly more Bt-susceptible larvae dropped off Bt cotton than non-Bt cotton plants over time. Although Bt-susceptible larvae could not detect Bt toxin, they showed preference on non-Bt toxin substrates and were more likely to drop off substrates with Bt toxin.
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Affiliation(s)
- T T A Luong
- Phu Yen University, Phu Yen 620000, Vietnam
- School of Biological Sciences, The University of Queensland, Brisbane 4072, Australia
| | - S J Downes
- CSIRO Agriculture and Food, Australian Cotton Research Institute, Narrabri 2390, Australia
| | - L E Perkins
- School of Biological Sciences, The University of Queensland, Brisbane 4072, Australia
| | - M P Zalucki
- School of Biological Sciences, The University of Queensland, Brisbane 4072, Australia
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22
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Assessing the Impact of Insecticide Resistance on Vector Competence: A Review. INSECTS 2022; 13:insects13040377. [PMID: 35447819 PMCID: PMC9024519 DOI: 10.3390/insects13040377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 01/09/2023]
Abstract
Simple Summary Insects transmit a wide variety of pathogens, including parasites, bacteria, and viruses, to human and economically important crops. Since pathogen transmission threatens public health and economic activities, insecticides are the main strategy to control insect populations. The continued use of insecticides has led to resistant populations where chemicals are no longer effective. It is unknown if insecticide resistance (IR) could impact insects’ other characteristics, such as their ability to infect, maintain infection, or transmit pathogens, a trait known as vector competence (VC). In this review, we analyze the literature that involves the study of VC and IR or insecticide exposure in three main approaches; studies conducted in the field versus laboratory-designed experiments, the impact of insecticide exposure on pathogen transmission, and studies performed on vectors of crop pathogens. The evidence points out three different patterns where enhancement, impairment, or neutral effects are seen between IR and VC. It is of great concern that IR could enhance VC since it increases the risk of epidemics. More detailed and standardized studies are needed to confirm this relationship. Finally, results from this investigation could help create evidence-based vector control programs. Abstract The primary strategy to avoid adverse impacts from insect-mediated pathogen transmission is the chemical control of vector populations through insecticides; its continued use has led to insecticide resistance and unknown consequences on vector competence. This review aims to systematically analyze and synthesize the research on the influence of insecticide resistance (IR) on vector competence (VC). Thirty studies met the inclusion criteria. Twenty studies, conducted either in laboratory or field settings, described the influence of phenotypic insecticide resistance and mechanisms on VC in vectors of human pathogens. Seven studies showed the effect of exposure to insecticides on VC in vectors of human pathogens. Three studies reported the influence of phenotypic resistance and mechanisms on VC in crop pests. The evidence shows that IR could enhance, impair, or have no direct effect on VC in either field or laboratory-designed studies. Similar positive and negative trends are found in pest vectors in crops and studies of insecticide exposure and VC. Even though there is evidence that exposure to insecticides and IR can enhance VC, thus increasing the risk of pathogen transmission, more investigations are needed to confirm the observed patterns and what implications these factors could have in vector control programs.
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Babu A, Rodriguez-Saona C, Sial AA. Comparative Adult Mortality and Relative Attractiveness of Spotted-Wing Drosophila (Diptera: Drosophilidae) to Novel Attract-and-Kill (ACTTRA SWD) Formulations Mixed With Different Insecticides. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.846169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since its first appearance in California in 2008 and subsequent spread across the continental United States, the spotted-wing drosophila, Drosophila suzukii Matsumura, has become an economically damaging pest of multiple stone and soft-skinned fruits in the United States. The adjuvant ACTTRA SWD, when mixed with a suitable insecticide, constitutes an innovative attract-and-kill tactic that can be applied as a sprayable bait to manage D. suzukii. As an adjuvant, growers can mix ACTTRA SWD with any insecticide recommended for D. suzukii management in a specific crop; however, to achieve this, the efficacy of this adjuvant incorporated with various insecticides needs testing. This research aims to test the suitability of nine insecticides added to two ACTTRA SWD formulations (named OR1 and TD) to maintain the formulation’s attractiveness to D. suzukii adults and in resulting mortality. We conducted a series of two-choice bioassays to test the relative attraction of D. suzukii to ACTTRA SWD formulations prepared with and without a specific insecticide. Additionally, we tested the efficacy of ACTTRA SWD formulations mixed with insecticides in managing D. suzukii by using no-choice efficacy bioassays. Adding Mustang Maxx (zeta-cypermethrin) to ACTTRA SWD OR1 significantly improved D. suzukii adult attraction to the formulation, while Azera (azadirachtin + pyrethrins) significantly reduced attraction to both ACTTRA SWD formulations. Among the insecticides tested, we identified Danitol (fenpropathrin), Exirel (cyantraniliprole), Malathion (malathion), Mustang Maxx, and Entrust (spinosad) as suitable insecticide additives for both ACTTRA SWD formulations. The results from this study will assist growers in selecting proper insecticide components when preparing attract-and-kill formulations of the new adjuvant ACTTRA SWD.
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Chemosensory Proteins Are Associated with Thiamethoxam and Spirotetramat Tolerance in Aphis gossypii Glover. Int J Mol Sci 2022; 23:ijms23042356. [PMID: 35216472 PMCID: PMC8874399 DOI: 10.3390/ijms23042356] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
Chemosensory proteins (CSPs) are a class of transporters in arthropods. Deeper research on CSPs showed that CSPs may be involved in some physiological processes beyond chemoreception, such as insect resistance to pesticides. We identified two upregulated CSPs in two resistant strains of Aphis gossypii Glover. To understand their role in the resistance of aphids to pesticides, we performed the functional verification of CSP1 and CSP4 in vivo and in vitro. Results showed that the sensitivity of the thiamethoxam-resistant strain to thiamethoxam increased significantly with the silencing of CSP1 and CSP4 by RNAi (RNA interference), and the sensitivity of the spirotetramat-resistant strain to spirotetramat increased significantly with the silencing of CSP4. Transgenic Drosophila melanogaster expressing CSPs exhibited stronger resistance to thiamethoxam, spirotetramat, and alpha-cypermethrin than the control did. In the bioassay of transgenic Drosophila, CSPs showed different tolerance mechanisms for different pesticides, and the overexpressed CSPs may play a role in processes other than resistance to pesticides. In brief, the present results prove that CSPs are related to the resistance of cotton aphids to insecticides.
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25
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Bantz A, Goven D, Siegwart M, Maugin S, Raymond V. Exposure to a sublethal dose of imidacloprid induces cellular and physiological changes in Periplaneta americana: Involvement of α2 nicotinic acetylcholine subunit in imidacloprid sensitivity. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 181:105014. [PMID: 35082037 DOI: 10.1016/j.pestbp.2021.105014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Neonicotinoids are the most important class of insecticides used as pest management tools during several decades. Exposition of insect to sublethal dose of insecticide induces physiological and cellular changes that could contribute to the adaptation of the insects in order to loss their sensitivity to insecticides. The aim of our study is to demonstrate that a subchronic exposure to a sublethal dose of a neonicotinoid imidacloprid is sufficient to induce molecular changes leading to a loss of imidacloprid sensitivity. We report that in the cockroach, Periplaneta americana, subchronic exposure to a sublethal dose of imidacloprid induced weak changes in detoxification enzyme activity and a significant decrease of the nicotinic acetylcholine α2 mRNA. This molecular effect is correlated to a decrease of imidacloprid sensitivity of cockroaches. Using RNA interference, we shown the key role of nicotinic acetylcholine α2 subunit in imidacloprid sensitivity. Thus, quantitative changes in insecticide targets lead to decreased sensitivity to insecticides. This parameter needs to be considered in order to develop sustainable insect resistance management strategies.
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Affiliation(s)
- Alexandre Bantz
- Univ Angers, INRAE, SiFCIR, SFR QUASAV, F-49000 Angers, France.
| | - Delphine Goven
- Univ Angers, INRAE, SiFCIR, SFR QUASAV, F-49000 Angers, France.
| | - Myriam Siegwart
- INRAE, UR 1115 Plantes et Systèmes de culture Horticoles (PSH), 84914 Avignon, France.
| | - Sandrine Maugin
- INRAE, UR 1115 Plantes et Systèmes de culture Horticoles (PSH), 84914 Avignon, France.
| | - Valerie Raymond
- Univ Angers, INRAE, SiFCIR, SFR QUASAV, F-49000 Angers, France.
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Perrier S, Moreau E, Deshayes C, El-Adouzi M, Goven D, Chandre F, Lapied B. Compensatory mechanisms in resistant Anopheles gambiae AcerKis and KdrKis neurons modulate insecticide-based mosquito control. Commun Biol 2021; 4:665. [PMID: 34079061 PMCID: PMC8172894 DOI: 10.1038/s42003-021-02192-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/06/2021] [Indexed: 02/04/2023] Open
Abstract
In the malaria vector Anopheles gambiae, two point mutations in the acetylcholinesterase (ace-1R) and the sodium channel (kdrR) genes confer resistance to organophosphate/carbamate and pyrethroid insecticides, respectively. The mechanisms of compensation that recover the functional alterations associated with these mutations and their role in the modulation of insecticide efficacy are unknown. Using multidisciplinary approaches adapted to neurons isolated from resistant Anopheles gambiae AcerKis and KdrKis strains together with larval bioassays, we demonstrate that nAChRs, and the intracellular calcium concentration represent the key components of an adaptation strategy ensuring neuronal functions maintenance. In AcerKis neurons, the increased effect of acetylcholine related to the reduced acetylcholinesterase activity is compensated by expressing higher density of nAChRs permeable to calcium. In KdrKis neurons, changes in the biophysical properties of the L1014F mutant sodium channel, leading to enhance overlap between activation and inactivation relationships, diminish the resting membrane potential and reduce the fraction of calcium channels available involved in acetylcholine release. Together with the lower intracellular basal calcium concentration observed, these factors increase nAChRs sensitivity to maintain the effect of low concentration of acetylcholine. These results explain the opposite effects of the insecticide clothianidin observed in AcerKis and KdrKis neurons in vitro and in vivo.
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Affiliation(s)
| | | | | | | | | | - Fabrice Chandre
- MIVEGEC, UMR IRD 224-CNRS 5290-Université de Montpellier, 911 avenue Agropolis, Montpellier, Cedex 05, France
| | - Bruno Lapied
- Univ Angers, INRAE, SIFCIR, SFR QUASAV, Angers, France.
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27
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Saavedra-Rodriguez K, Campbell CL, Lozano S, Penilla-Navarro P, Lopez-Solis A, Solis-Santoyo F, Rodriguez AD, Perera R, Black IV WC. Permethrin resistance in Aedes aegypti: Genomic variants that confer knockdown resistance, recovery, and death. PLoS Genet 2021; 17:e1009606. [PMID: 34138859 PMCID: PMC8211209 DOI: 10.1371/journal.pgen.1009606] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 05/17/2021] [Indexed: 11/30/2022] Open
Abstract
Pyrethroids are one of the few classes of insecticides available to control Aedes aegypti, the major vector of dengue, chikungunya, and Zika viruses. Unfortunately, evolving mechanisms of pyrethroid resistance in mosquito populations threaten our ability to control disease outbreaks. Two common pyrethroid resistance mechanisms occur in Ae. aegypti: 1) knockdown resistance, which involves amino acid substitutions at the pyrethroid target site-the voltage-gated sodium channel (VGSC)-and 2) enhanced metabolism by detoxification enzymes. When a heterogeneous population of mosquitoes is exposed to pyrethroids, different responses occur. During exposure, a proportion of mosquitoes exhibit immediate knockdown, whereas others are not knocked-down and are designated knockdown resistant (kdr). When these individuals are removed from the source of insecticide, the knocked-down mosquitoes can either remain in this status and lead to dead or recover within a few hours. The proportion of these phenotypic responses is dependent on the pyrethroid concentration and the genetic background of the population tested. In this study, we sequenced and performed pairwise genome comparisons between kdr, recovered, and dead phenotypes in a pyrethroid-resistant colony from Tapachula, Mexico. We identified single-nucleotide polymorphisms (SNPs) associated with each phenotype and identified genes that are likely associated with the mechanisms of pyrethroid resistance, including detoxification, the cuticle, and insecticide target sites. We identified high association between kdr and mutations at VGSC and moderate association with additional insecticide target site, detoxification, and cuticle protein coding genes. Recovery was associated with cuticle proteins, the voltage-dependent calcium channel, and a different group of detoxification genes. We provide a list of detoxification genes under directional selection in this field-resistant population. Their functional roles in pyrethroid metabolism and their potential uses as genomic markers of resistance require validation.
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Affiliation(s)
- Karla Saavedra-Rodriguez
- Colorado State University, Department of Microbiology, Immunology and Pathology, Center of Vector-borne and Infectious Diseases, Fort Collins, Colorado, United States of America
| | - Corey L. Campbell
- Colorado State University, Department of Microbiology, Immunology and Pathology, Center of Vector-borne and Infectious Diseases, Fort Collins, Colorado, United States of America
| | - Saul Lozano
- Centers for Diseases Prevention and Control, Arboviral Diseases Branch, Fort Collins, Colorado, United States of America
| | - Patricia Penilla-Navarro
- Centro Regional de Investigacion en Salud Publica, Instituto Nacional de Salud Publica, Tapachula, Mexico
| | - Alma Lopez-Solis
- Centro Regional de Investigacion en Salud Publica, Instituto Nacional de Salud Publica, Tapachula, Mexico
| | - Francisco Solis-Santoyo
- Centro Regional de Investigacion en Salud Publica, Instituto Nacional de Salud Publica, Tapachula, Mexico
| | - Americo D. Rodriguez
- Centro Regional de Investigacion en Salud Publica, Instituto Nacional de Salud Publica, Tapachula, Mexico
| | - Rushika Perera
- Colorado State University, Department of Microbiology, Immunology and Pathology, Center of Vector-borne and Infectious Diseases, Fort Collins, Colorado, United States of America
| | - William C. Black IV
- Colorado State University, Department of Microbiology, Immunology and Pathology, Center of Vector-borne and Infectious Diseases, Fort Collins, Colorado, United States of America
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28
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Wang L, Zhu J, Cui L, Wang Q, Huang W, Yang Q, Ji X, Rui C. Overexpression of Multiple UDP-Glycosyltransferase Genes Involved in Sulfoxaflor Resistance in Aphis gossypii Glover. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5198-5205. [PMID: 33877846 DOI: 10.1021/acs.jafc.1c00638] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
UDP-glycosyltransferases (UGTs) are major phase II enzymes involved in the metabolic detoxification of xenobiotics. In this study, two UGT-inhibitors, 5-nitrouracil and sulfinpyrazone, significantly increased sulfoxaflor toxicity against sulfoxaflor-resistant (Sul-R) Aphis gossypii, whereas there were no synergistic effects in susceptible (Sus) A. gossypii. The activity of UGTs in the Sul-R strain was significantly higher (1.35-fold) than that in the Sus strain. Further, gene expression determination demonstrated that 11 of 23 UGT genes were significantly upregulated (1.40- to 5.46-fold) in the Sul-R strain, among which the expression levels of UGT350A2, UGT351A4, UGT350B2, UGT342C2, and UGT343C2 could be induced by sulfoxaflor. Additionally, knockdown of UGT350A2, UGT351A4, UGT350B2, and UGT343C2 using RNA interference (RNAi) significantly increased sensitivity (1.57- to 1.76-fold) to sulfoxaflor in the Sul-R strain. These results suggested that UGTs might be involved in sulfoxaflor resistance in A. gossypii. These findings will facilitate further work to validate the functional roles of these UGT genes in sulfoxaflor resistance.
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Affiliation(s)
- Li Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junshu Zhu
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Li Cui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qinqin Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Weiling Huang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qingjie Yang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xuejiao Ji
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Changhui Rui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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29
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Evidence for the Involvement of the Chemosensory Protein AgosCSP5 in Resistance to Insecticides in the Cotton Aphid, Aphis gossypii. INSECTS 2021; 12:insects12040335. [PMID: 33918564 PMCID: PMC8070451 DOI: 10.3390/insects12040335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/03/2021] [Accepted: 04/04/2021] [Indexed: 11/30/2022]
Abstract
Simple Summary Insect chemosensory proteins (CSPs) are potential targets for insect pest control strategies and are proposed to function in insect chemoreception, because they play a role in crop host location by binding and transporting odorant molecules. They are also thought to have other functions, for example, in tissue regeneration and in insecticide resistance, because they also express in nonolfactory tissues and are capable of binding insecticides. However, there are few reports that provide direct evidence for this proposal. In this study, we discovered gene gain-and-loss among aphid populations, possibly associated with different insecticide resistance, and then identified and cloned a CSP gene responsive to insecticide treatments. The introduction of such gene in Drosophila fruit flies made the transgenic flies less sensitive to the treatment of different insecticides. Our study advances the research of insect CSP functions and offers valuable new information to target CSPs for pest management. Abstract It has been speculated that insect chemosensory proteins (CSPs) may have additional roles beyond olfaction. In this study, the phylogenetic and genomic analyses of the CSPs of the cotton aphid, Aphis gossypii, revealed the presence of gene gain-and-loss among different aphid field populations. Differential expressions of eight CSP genes were demonstrated after treatments with insecticides of different modes of action. The expression of AgosCSP5 was significantly upregulated by the insecticide treatments in a dose-dependent manner. The Drosophila flies overexpressing AgosCSP5 were significantly less susceptible to the insecticides, omethoate, imidacloprid and cypermethrin but not to deltamethrin and tau-fluvalinate, compared with control flies. The transgenic Drosophila flies exhibited an LC50 resistance ratio of 2.6 to omethoate, compared with control flies. Likewise, the mortality of the transgenic flies to imidacloprid and cypermethrin was significantly lower than that of the control flies (p < 0.01). Homology modelling, molecular docking and dynamic simulation supported the interactions and revealed a higher stability of AgosCSP5/insecticide complexes than AgosCSP5/semiochemical complexes. Our study demonstrates for first time the in vivo evidence for the involvement of CSP genes in insecticide resistance of crop insect pests and provides new insights of the newly discovered CSP-mediated insect resistance mechanism to insecticides.
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30
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Pinos D, Andrés-Garrido A, Ferré J, Hernández-Martínez P. Response Mechanisms of Invertebrates to Bacillus thuringiensis and Its Pesticidal Proteins. Microbiol Mol Biol Rev 2021; 85:e00007-20. [PMID: 33504654 PMCID: PMC8549848 DOI: 10.1128/mmbr.00007-20] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Extensive use of chemical insecticides adversely affects both environment and human health. One of the most popular biological pest control alternatives is bioinsecticides based on Bacillus thuringiensis This entomopathogenic bacterium produces different protein types which are toxic to several insect, mite, and nematode species. Currently, insecticidal proteins belonging to the Cry and Vip3 groups are widely used to control insect pests both in formulated sprays and in transgenic crops. However, the benefits of B. thuringiensis-based products are threatened by insect resistance evolution. Numerous studies have highlighted that mutations in genes coding for surrogate receptors are responsible for conferring resistance to B. thuringiensis Nevertheless, other mechanisms may also contribute to the reduction of the effectiveness of B. thuringiensis-based products for managing insect pests and even to the acquisition of resistance. Here, we review the relevant literature reporting how invertebrates (mainly insects and Caenorhabditis elegans) respond to exposure to B. thuringiensis as either whole bacteria, spores, and/or its pesticidal proteins.
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Affiliation(s)
- Daniel Pinos
- Instituto Universitario de Biotecnología y Biomedicina (BIOTECMED), Department of Genetics, Universitat de València, Burjassot, Spain
| | - Ascensión Andrés-Garrido
- Instituto Universitario de Biotecnología y Biomedicina (BIOTECMED), Department of Genetics, Universitat de València, Burjassot, Spain
| | - Juan Ferré
- Instituto Universitario de Biotecnología y Biomedicina (BIOTECMED), Department of Genetics, Universitat de València, Burjassot, Spain
| | - Patricia Hernández-Martínez
- Instituto Universitario de Biotecnología y Biomedicina (BIOTECMED), Department of Genetics, Universitat de València, Burjassot, Spain
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31
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Hubbard CB, Gerry AC. Genetic evaluation and characterization of behavioral resistance to imidacloprid in the house fly. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 171:104741. [PMID: 33357563 DOI: 10.1016/j.pestbp.2020.104741] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 06/12/2023]
Abstract
Insecticide resistance in pest populations is an increasing problem in both urban and rural settings due to over-application of insecticides and lack of rotation among insecticidal chemical classes. The house fly (Musca domestica L.) is a cosmopolitan pest fly species implicated in the transmission of numerous pathogens. The evolution of insecticide resistance long has been documented in house flies, with resistance reported to all major insecticide classes. House fly resistance to imidacloprid, the most widely used neonicotinoid insecticide available for fly control, has evolved in field populations through both physiological and behavioral mechanisms. Previous studies have characterized and mapped the genetic changes that confer physiological resistance to imidacloprid, but no study have examined the genetics involved in behavioral resistance to imidacloprid to date. In the current study, several approaches were utilized to characterize the genetics and inheritance of behavioral resistance to imidacloprid in the house fly. These include behavioral observation analyses, preference assays, and the use of genetic techniques for the identification of house fly chromosome(s) carrying factors. Behavioral resistance was mapped to autosomes 1 and 4. Inheritance of resistance was shown to be neither fully dominant nor recessive. Factors on autosomes 1 and 4 independently conferred contact-dependent avoidance of imidacloprid and a feeding preference for sugar alone or for sugar with dinotefuran, another neonicotinoid insecticide, over imidacloprid. This study serves as the first linkage analysis of a behavioral trait in the house fly, and provides new avenues for research regarding inherited behavior in the house fly and other animals.
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Affiliation(s)
- Caleb B Hubbard
- Department of Entomology, University of California, Riverside, CA 92521, USA.
| | - Alec C Gerry
- Department of Entomology, University of California, Riverside, CA 92521, USA
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Molecular basis of resistance to organophosphate insecticides in the New World screw-worm fly. Parasit Vectors 2020; 13:562. [PMID: 33168079 PMCID: PMC7653728 DOI: 10.1186/s13071-020-04433-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/29/2020] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The emergence of insecticide resistance is a fast-paced example of the evolutionary process of natural selection. In this study, we investigated the molecular basis of resistance in the myiasis-causing fly Cochliomyia hominivorax (Diptera: Calliphoridae) to dimethyl-organophosphate (OP) insecticides.
Methods
By sequencing the RNA from surviving larvae treated with dimethyl-OP (resistant condition) and non-treated larvae (control condition), we identified genes displaying condition-specific polymorphisms, as well as those differentially expressed.
Results
Both analyses revealed that resistant individuals have altered expression and allele-specific expression of genes involved in proteolysis (specifically serine-endopeptidase), olfactory perception and cuticle metabolism, among others. We also confirmed that resistant individuals carry almost invariably the Trp251Ser mutation in the esterase E3, known to confer OP and Pyrethroid resistance. Interestingly, genes involved in metabolic and detoxifying processes (notably cytochrome P450s) were found under-expressed in resistant individuals. An exception to this were esterases, which were found up-regulated.
Conclusions
These observations suggest that reduced penetration and aversion to dimethyl-OP contaminated food may be important complementary strategies of resistant individuals. The specific genes and processes found are an important starting point for future functional studies. Their role in insecticide resistance merits consideration to better the current pest management strategies.
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Hubbard CB, Gerry AC. Selection, Reversion, and Characterization of House Fly (Diptera: Muscidae) Behavioral Resistance to the Insecticide Imidacloprid. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:1843-1851. [PMID: 32516402 DOI: 10.1093/jme/tjaa105] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Indexed: 06/11/2023]
Abstract
Insecticide resistance in pest populations is an increasing problem in both urban and rural settings caused by over-application of insecticides and lack of rotation among chemical classes. The house fly (Musca domestica L.) is a cosmopolitan fly species implicated in the transmission of numerous pathogens, and which can be extremely pestiferous when present in high numbers. The evolution of insecticide resistance has long been documented in house flies, with resistance reported to all major insecticide classes. House fly resistance to imidacloprid, the most widely used neonicotinoid insecticide available for fly control, has been selected for in field populations through both physiological and behavioral resistance mechanisms. In the current study, house flies collected from a southern California dairy were selectively bred for behavioral resistance to imidacloprid, without increasing the physiological resistance profile of the selected flies. Flies were also successfully selected for behavioral susceptibility to imidacloprid. The rapid selection for either behavioral resistance or behavioral susceptibility suggests that inheritable alleles conferring behavioral resistance were already present in the wild-type fly population collected from the dairy site. The methods used for the specific selection of behavioral resistance (or susceptibility) in the fly population will be useful for further studies on the specific mechanisms conferring this resistance. House fly behavioral resistance was further investigated using behavioral observation and feeding preference assays, with resistance determined to be both contact-dependent and specific to the insecticide (imidacloprid) rather than to a non-insecticidal component of a bait matrix as previously documented.
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Affiliation(s)
| | - Alec C Gerry
- Department of Entomology, University of California, Riverside, CA
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Chanda J, Saili K, Phiri F, Stevenson JC, Mwenda M, Chishimba S, Mulube C, Mambwe B, Lungu C, Earle D, Bennett A, Eisele TP, Kamuliwo M, Steketee RW, Keating J, Miller JM, Sikaala CH. Pyrethroid and Carbamate Resistance in Anopheles funestus Giles along Lake Kariba in Southern Zambia. Am J Trop Med Hyg 2020; 103:90-97. [PMID: 32618244 PMCID: PMC7416976 DOI: 10.4269/ajtmh.19-0664] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Whereas data on insecticide resistance and its underlying mechanisms exist for parts of Zambia, data remain limited in the southern part of the country. This study investigated the status of insecticide resistance, metabolic mechanisms, and parasite infection in Anopheles funestus along Lake Kariba in southern Zambia. Indoor-resting mosquitoes were collected from 20 randomly selected houses within clusters where a mass drug administration trial was conducted and raised to F1 progeny. Non–blood-fed 2- to 5-day-old female An. funestus were exposed to WHO insecticide-impregnated papers with 0.05% deltamethrin, 0.1% bendiocarb, 0.25% pirimiphos-methyl, or 4% dichloro-diphenyl-trichloroethane (DDT). In separate assays, An. funestus were pre-exposed to piperonyl butoxide (PBO) to determine the presence of monooxygenases. Wild-caught An. funestus that had laid eggs for susceptibility assays were screened for circumsporozoite protein of Plasmodium falciparum by ELISA, and sibling species were identified by polymerase chain reaction. Anopheles funestus showed resistance to deltamethrin and bendiocarb but remained susceptible to pirimiphos-methyl and DDT. The pre-exposure of An. funestus to PBO restored full susceptibility to deltamethrin but not to bendiocarb. The overall sporozoite infection rate in An. funestus populations was 5.8%. Detection of pyrethroid and carbamate resistance in An. funestus calls for increased insecticide resistance monitoring to guide planning and selection of effective insecticide resistance management strategies. To prevent the development of resistance and reduce the underlying vectorial capacity of mosquitoes in areas targeted for malaria elimination, an effective integrated vector management strategy is needed.
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Affiliation(s)
- Javan Chanda
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Kochelani Saili
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Foustina Phiri
- National Malaria Elimination Centre, Zambia Ministry of Health, Lusaka, Zambia
| | - Jennifer C Stevenson
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Macha Research Trust, Choma, Zambia
| | - Mulenga Mwenda
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Sandra Chishimba
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Conceptor Mulube
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Brenda Mambwe
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Christopher Lungu
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Duncan Earle
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Adam Bennett
- Malaria Elimination Initiative, Global Health Group, University of California San Francisco, San Francisco, California
| | - Thomas P Eisele
- Department of Tropical Medicine, Center for Applied Malaria Research and Evaluation, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
| | - Mulakwa Kamuliwo
- National Malaria Elimination Centre, Zambia Ministry of Health, Lusaka, Zambia
| | | | - Joseph Keating
- Department of Tropical Medicine, Center for Applied Malaria Research and Evaluation, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
| | - John M Miller
- PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Lusaka, Zambia
| | - Chadwick H Sikaala
- SADC Malaria Elimination Eight Secretariat, Windhoek, Namibia.,National Malaria Elimination Centre, Zambia Ministry of Health, Lusaka, Zambia
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Yang F, Schildhauer S, Billeter SA, Hardstone Yoshimizu M, Payne R, Pakingan MJ, Metzger ME, Liebman KA, Hu R, Kramer V, Padgett KA. Insecticide Resistance Status of Aedes aegypti (Diptera: Culicidae) in California by Biochemical Assays. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:1176-1183. [PMID: 32159787 PMCID: PMC7334890 DOI: 10.1093/jme/tjaa031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Indexed: 05/25/2023]
Abstract
Insecticide resistance in Aedes aegypti mosquitoes poses a major threat to public health worldwide. There are two primary biological mechanisms that can lead to insecticide resistance, target site and metabolic resistance, both of which confer resistance to specific classes of insecticides. Due to the limited number of chemical compounds available for mosquito control, it is important to determine current enzymatic profiles among mosquito populations. This study assessed resistance profiles for three metabolic pathways, α-esterases, β-esterases, and mixed-function oxidases (MFOs), as well as insensitivity of the acetylcholinesterase (iAChE) enzyme in the presence of propoxur, among Ae. aegypti from the Central Valley and southern California. All field-collected Ae. aegypti demonstrated elevated MFOs and iAChE activity, indicating potential development of pyrethroid and organophosphate resistance, respectively. Although regional variations were found among α-esterase and β-esterase activity, levels were generally elevated, further suggesting additional mechanisms for developing organophosphate resistance. Furthermore, mosquito samples from southern California exhibited a higher expression level to all three metabolic enzymes and iAChE activity in comparison to mosquitoes from the central region. These results could help guide future mosquito control efforts, directing the effective use of insecticides while limiting the spread of resistance.
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Affiliation(s)
- Fan Yang
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Samuel Schildhauer
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Sarah A Billeter
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Melissa Hardstone Yoshimizu
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Robert Payne
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Mary Joyce Pakingan
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Marco E Metzger
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Kelly A Liebman
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Renjie Hu
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Vicki Kramer
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
| | - Kerry A Padgett
- California Department of Public Health, Infectious Diseases Branch/Vector-Borne Disease Section, Marina Bay Parkway, Richmond, CA
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Chen X, Tang C, Ma K, Xia J, Song D, Gao XW. Overexpression of UDP-glycosyltransferase potentially involved in insecticide resistance in Aphis gossypii Glover collected from Bt cotton fields in China. PEST MANAGEMENT SCIENCE 2020; 76:1371-1377. [PMID: 31605421 DOI: 10.1002/ps.5648] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/24/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The cotton aphid Aphis gossypii Glover is one of the most destructive insect pests. It has evolved resistance to numerous insecticides around the world due to the application of insecticides. Uridine diphosphate (UDP)-glycosyltransferases (UGTs) have been reported to potentially facilitate the detoxification process of imidacloprid and thiamethoxam in A. gossypii. RESULTS In this study, the field populations of A. gossypii developed different levels of resistance to multiple insecticides. A UGT inhibitor, 5-nitrouracil, dramatically increased the toxicity of acetamiprid in resistant populations, moderately increased the toxicity of sulfoxaflor in the imidacloprid susceptible (IMI_S) population, and populations from Yuncheng in Shanxi Province (SXYC) and Jingzhou in Hubei Province (HBJZ), and increased the toxicity of bifenthrin in the IMI_S and HBJZ populations, but there was no synergism on omethoate or carbosulfan. Quantitative real-time PCR analysis revealed that UGT344B4 and UGT344C7 were overexpressed in all field populations, and UGT344N4 was overexpressed in the SDBZ and HBZJ populations. Furthermore, the suppression of UGT344B4 or UGT344C7 by RNA interference significantly increased the susceptibility to bifenthrin in the IMI_S population and the susceptibility to sulfoxaflor in the SXYC population. CONCLUSION These results suggested that UGTs are potentially involved in the detoxification of neonicotinoid, sulfoximine, and pyrethroid insecticides in A. gossypii. Furthermore, the overexpression of UGTs could be associated with insecticide resistance in field populations of A. gossypii. The results might be helpful for the management of insecticide resistance in field populations of A. gossypii. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Xuewei Chen
- Department of Entomology, China Agricultural University, Beijing, China
| | - Chunyan Tang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Kangsheng Ma
- Department of Entomology, China Agricultural University, Beijing, China
| | - Jin Xia
- Department of Entomology, China Agricultural University, Beijing, China
| | - Dunlun Song
- Department of Entomology, China Agricultural University, Beijing, China
| | - Xi-Wu Gao
- Department of Entomology, China Agricultural University, Beijing, China
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Physiological resistance alters behavioral response of Tetranychus urticae to acaricides. Sci Rep 2019; 9:19308. [PMID: 31848392 PMCID: PMC6917710 DOI: 10.1038/s41598-019-55708-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 11/30/2019] [Indexed: 11/23/2022] Open
Abstract
Multiple acaricide resistance in Tetranychus urticae continues to threaten crop production globally, justifying the need to adequately study resistance for sustainable pest management. Most studies on acaricide resistance have focused on the acute contact toxicity of acaricides with little or no information on the behavioral responses elicited after acaricide exposure. Furthermore, the impact of physiological resistance on these behavioral responses remains unknown in most pest species, including T. urticae. We tested the effect of acaricide resistance on contact toxicity, irritancy and repellency of mitochondrial electron transport inhibitor of complex I (MET-I) and mite growth inhibitor (MGI) acaricides on multiple T. urticae strains. We also tested whether acaricides with similar physiological target site/mode of action also elicit similar behavioral effects on T. urticae strains. MET-I acaricides (fenazaquin, fenpyroximate, and pyrabiden) and MGIs (clofentezine, hexythiazox and etoxazole) elicited a dose-dependent irritant and repellent effect on T. urticae. Selection of strains for physiological resistance to these acaricides affected the behavioral response of T. urticae, especially in MET-I resistant strains, that showed reduced irritancy and repellency to MET-I acaricides. Behavioral response also affected the oviposition of T. urticae, where strains generally showed preferential oviposition away from the acaricides. The outcome of this study highlights negative consequences of acaricide resistance that can potentially affect T. urticae management.
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Caprio MA, Kurtz R, Catchot A, Kerns D, Reisig D, Gore J, Reay-Jones FPF. The Corn-Cotton Agroecosystem in the Mid-Southern United States: What Insecticidal Event Pyramids Should be Used in Each Crop to Extend Vip3A Durability. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:2894-2906. [PMID: 31375824 DOI: 10.1093/jee/toz208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Indexed: 06/10/2023]
Abstract
Recent studies suggest that resistance in Helicoverpa zea (Boddie) (Lepidoptera, Noctuidae) to Cry1A(b/c) and Cry2Ab2 toxins from the bacterium Bacillus thuringiensis Berliner (Bacillales: Bacillaceae) has increased and field efficacy is impacted in transgenic corn and cotton expressing these toxins. A third toxin, Vip3A, is available in pyramids expressing two or more Bt toxins in corn hybrids and cotton varieties, but uncertainty exists regarding deployment strategies. During a growing season, H. zea infests corn and cotton, and debate arises over use of Vip3A toxin in corn where H. zea is not an economic pest. We used a three-locus, spatially explicit simulation model to evaluate when using Vip3A in corn might hasten evolution of resistance to Vip3A, with implications in cotton where H. zea is a key pest. When using a conventional refuge in corn and initial resistance allele frequencies of Cry1A and Cry2A were 10%, transforming corn with Vip3A slowed resistance to these toxins and delayed resistance evolution to the three-toxin pyramid as a whole. When Cry resistance allele frequencies exceeded 30%, transforming corn with Vip3A hastened the evolution of resistance to the three-toxin pyramid in cotton. When using a seed blend refuge strategy, resistance was delayed longest when Vip3A was not incorporated into corn and used only in cotton. Simulations of conventional refuges were generally more durable than seed blends, even when 75% of the required refuge was not planted. Extended durability of conventional refuges compared to other models of resistance evolution are discussed as well as causes for unusual survivorship in seed blends.
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Affiliation(s)
- Michael A Caprio
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS
| | | | - Angus Catchot
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS
| | - David Kerns
- Department of Entomology, Texas A&M University, TAMU, College Station, TX
| | - Dominic Reisig
- Department of Entomology and Plant Pathology, North Carolina State University, Vernon G. James Research and Extension Center, Plymouth, NC
| | - Jeff Gore
- Delta Research & Extension Center, Mississippi State University, Stoneville, MS
| | - Francis P F Reay-Jones
- Department of Plant and Environmental Sciences, Pee Dee Research and Education Center, Clemson University, Florence, SC
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Saavedra‐Rodriguez K, Campbell CL, Lenhart A, Penilla P, Lozano‐Fuentes S, Black WC. Exome-wide association of deltamethrin resistance in Aedes aegypti from Mexico. INSECT MOLECULAR BIOLOGY 2019; 28:591-604. [PMID: 30758862 PMCID: PMC6766855 DOI: 10.1111/imb.12575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Aedes aegypti is the major vector of a number of arboviruses that cause disease in humans. Without vaccines or pharmaceuticals, pyrethroid insecticides remain the major tool for public health protection. Pyrethroid resistance is now widespread. Replacement substitutions in the voltage-gated sodium channel (vgsc) that reduce the stability of pyrethroid binding account for most of the resistance, but metabolic mechanisms also inactivate pyrethroids. High-throughput sequencing and the A. aegypti L5 annotated physical map has allowed interrogation of the exome for genes and single-nucleotide polymorphisms associated with pyrethroid resistance. We exposed females of A. aegypti from Mexico to a deltamethrin discriminating dose to designate them as resistant (active after 1 h) or susceptible (knocked down with no recovery after 4 h). The vgsc on chromosome 3 had the highest association, followed by genes proximal to vgsc. We identified potential detoxification genes located singly (eg HPX8C) or within clusters in chromosome 2 [three esterase clusters, two of cytochrome P450 monooxygenases (CYP)] and chromosome 3 (one cluster of 16 CYP325 and seven CYP9 genes). Deltamethrin resistance in A. aegypti is associated with mutations in the vgsc gene and a large assortment of genes.
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Affiliation(s)
- K. Saavedra‐Rodriguez
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsCOUSA
| | - C. L. Campbell
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsCOUSA
| | - A. Lenhart
- Division of Parasitic Diseases and MalariaCenter for Global Health, Centers for Disease Control and PreventionAtlantaGAUSA
| | - P. Penilla
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsCOUSA
- Division of Parasitic Diseases and MalariaCenter for Global Health, Centers for Disease Control and PreventionAtlantaGAUSA
| | - S. Lozano‐Fuentes
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsCOUSA
| | - W. C. Black
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsCOUSA
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Bilbo TR, Reay-Jones FPF, Reisig DD, Greene JK, Turnbull MW. Development, survival, and feeding behavior of Helicoverpa zea (Lepidoptera: Noctuidae) relative to Bt protein concentrations in corn ear tissues. PLoS One 2019; 14:e0221343. [PMID: 31425563 PMCID: PMC6699733 DOI: 10.1371/journal.pone.0221343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/05/2019] [Indexed: 12/02/2022] Open
Abstract
The corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), preferentially oviposits and feeds on ears of corn (Zea mays L.) and can be managed using transgenic hybrids that produce insecticidal proteins from the bacterium Bacillus thuringiensis (Bt). Concentrations of Bt proteins can vary spatially and temporally in plant tissues, creating a heterogeneous environment that can increase the risk of resistance development. We planted small-plot trials of nine Bt and non-Bt corn hybrids in South Carolina in 2016 and 2017 and investigated the development, survival, feeding injury, and feeding behavior in corn ear tissues. ELISA was used to quantify the concentrations of Cry1F and Cry2Ab2 in young silk, old silk, maternal tip tissue, kernels, and husk. Cry1F and Cry2Ab2 significantly varied with silk age and both proteins were generally highest in the silk and tip tissue. Hybrids with pyramided proteins significantly reduced feeding injury to the silk, tip, and kernel ear tissues, which was less apparent with single Bt protein hybrids. The pyramided hybrid expressing Vip3A incurred no injury to either the ear tip or kernels, and only eight 1st instar larvae were collected in the silk of 520 sampled ears. Age of larvae significantly varied among ear tissues but not between hybrids. Depending on hybrid family, mean larval instar in the silk, tip, and kernels was 1st or 2nd, 3rd, and 5th, respectively. Instar-specific feeding penetrance into corn ears increased with age but did not differ between hybrids. We characterized the instar- and tissue-specific feeding behavior of H. zea larvae but did not detect differences in feeding behavior between Bt and non-Bt hybrids. Implications for resistance management strategies such as seed mixtures are discussed.
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Affiliation(s)
- Tom R. Bilbo
- Clemson University, Department of Plant and Environmental Sciences, Pee Dee Research and Education Center, Florence, South Carolina, United States of America
| | - Francis P. F. Reay-Jones
- Clemson University, Department of Plant and Environmental Sciences, Pee Dee Research and Education Center, Florence, South Carolina, United States of America
- * E-mail:
| | - Dominic D. Reisig
- North Carolina State University, Department of Entomology and Plant Pathology, Vernon G. James Research and Extension Center, Plymouth, North Carolina, United States of America
| | - Jeremy K. Greene
- Clemson University, Department of Plant and Environmental Sciences, Edisto Research and Education Center, Blackville, South Carolina, United States of America
| | - Matthew W. Turnbull
- Clemson University, Department of Plant and Environmental Sciences, Department of Biological Sciences, Clemson, South Carolina, United States of America
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Braswell LR, Reisig DD, Sorenson CE, Collins GD. Helicoverpa zea (Lepidoptera: Noctuidae) Preference for Plant Structures, and Their Location, Within Bt Cotton Under Different Nitrogen and Irrigation Regimes. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:1741-1751. [PMID: 31329903 DOI: 10.1093/jee/toz105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Indexed: 06/10/2023]
Abstract
Helicoverpa zea Boddie is a common economic pest of cotton (Gossypium hirsutum L.), including transgenic cotton varieties that express Bacillus thuringiensis (Bt). Helicoverpa zea oviposition is similar in Bt and non-Bt cotton, but behavior of H. zea larvae can be different in the presence of Bt, with neonates moving away from terminals faster in single-toxin Bt than non-Bt cotton or avoiding Bt-treated diet in the lab. We quantified H. zea oviposition and larval distribution on structures within cotton plants in small plot experiments of Cry1Ac + Cry1F cotton for 2 yr under different irrigation and nitrogen treatments. More eggs were oviposited on plants receiving nitrogen application during 2016 and on leaves in the top section of irrigated plants during 2017, but other treatment effects on eggs or larvae were minimal. Helicoverpa zea eggs were most common on leaves in the top third of plants at position zero and middle section of cotton plants throughout the season, but some oviposition occurred on fruiting structures as well. First and second instars were more common on squares in the top section of plants during 2016 and bolls in the middle and lower sections during 2017 due to oviposition lower in the canopy during 2017. During both years, third through fifth instars were more common on bolls in the middle and lower section of plants closer to the main stem. These findings have resistance management implications as extended larval feeding on bolls could optimize nutrition, decrease Bt susceptibility, and potentially influence behavioral resistance.
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Affiliation(s)
- Lewis R Braswell
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Dominic D Reisig
- Department of Entomology and Plant Pathology, North Carolina State University, Vernon G. James Research and Extension Center, Plymouth, NC
| | - Clyde E Sorenson
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Guy D Collins
- Department of Crop and Soil Science, North Carolina State University, Upper Coastal Plain Research Station, Rocky Mount, NC
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Simma EA, Dermauw W, Balabanidou V, Snoeck S, Bryon A, Clark RM, Yewhalaw D, Vontas J, Duchateau L, Van Leeuwen T. Genome-wide gene expression profiling reveals that cuticle alterations and P450 detoxification are associated with deltamethrin and DDT resistance in Anopheles arabiensis populations from Ethiopia. PEST MANAGEMENT SCIENCE 2019; 75:1808-1818. [PMID: 30740870 DOI: 10.1002/ps.5374] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/18/2019] [Accepted: 02/04/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Vector control is the main intervention in malaria control and elimination strategies. However, the development of insecticide resistance is one of the major challenges for controlling malaria vectors. Anopheles arabiensis populations in Ethiopia showed resistance against both DDT and the pyrethroid deltamethrin. Although an L1014F target-site resistance mutation was present in the voltage gated sodium channel of investigated populations, the levels of resistance indicated the presence of additional resistance mechanisms. In this study, we used genome-wide transcriptome profiling by RNAseq to assess differentially expressed genes between three deltamethrin and DDT resistant An. arabiensis field populations - Asendabo, Chewaka and Tolay - and two susceptible strains - Sekoru and Mozambique. RESULTS Both RNAseq analysis and RT-qPCR showed that a glutathione-S-transferase, gstd3, and a cytochrome P450 monooxygenase, cyp6p4, were significantly overexpressed in the group of resistant populations compared to the susceptible strains, suggesting that the enzymes they encode play a key role in metabolic resistance against deltamethrin or DDT. Furthermore, a gene ontology enrichment analysis showed that expression changes of cuticle related genes were strongly associated with insecticide resistance. Although this did not translate in increased thickness of the procuticle, a higher cuticular hydrocarbon content was observed in a resistant population. CONCLUSION Our transcriptome sequencing of deltamethrin and DDT resistant An. arabiensis populations from Ethiopia suggests non-target site resistance mechanisms and paves the way for further investigation of the role of cuticle composition in insecticide resistance of malaria vectors. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Eba A Simma
- Department of Biology, College of Natural Sciences, Jimma University, Jimma, Ethiopia
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Wannes Dermauw
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Vasileia Balabanidou
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Biology, University of Crete, Heraklion, Greece
| | - Simon Snoeck
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Astrid Bryon
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Richard M Clark
- School of Biological Sciences, University of Utah, Salt Lake City, UT, USA
- Center for Cell and Genome Science, University of Utah, Salt Lake City, UT, USA
| | - Delenasaw Yewhalaw
- School of Medical Laboratory Sciences, College of Health Sciences, Jimma University, Jimma, Ethiopia
- Tropical and Infectious Diseases Research Center, Jimma University, Jimma, Ethiopia
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Crop Science, Pesticide Science Lab, Agricultural University of Athens, Athens, Greece
| | - Luc Duchateau
- Department of Nutrition, Genetics and Ethology, Ghent University, Merelbeke, Belgium
| | - Thomas Van Leeuwen
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Chen S, Qin Q, Zhong D, Fang X, He H, Wang L, Dong L, Lin H, Zhang M, Cui L, Yan G. Insecticide Resistance Status and Mechanisms of Anopheles sinensis (Diptera: Culicidae) in Wenzhou, an Important Coastal Port City in China. JOURNAL OF MEDICAL ENTOMOLOGY 2019; 56:803-810. [PMID: 30715428 PMCID: PMC6467641 DOI: 10.1093/jme/tjz001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 06/04/2023]
Abstract
Although scaled-up interventions and effective control efforts have drastically reduced malaria morbidity and mortality, malaria remains a serious threat to public health worldwide. Anopheles sinensis Wiedemann 1828 is a historically important vector of Plasmodium vivax (Haemosporida: Plasmodiidae) malaria in China. Insecticide resistance has become a major obstacle to vector-borne disease control. However, little is known about the insecticide resistance of An. sinensis in Wenzhou, an important coastal port city in Zhejiang province, China. The aim of this study was to examine insecticide resistance and mechanisms in An. sinensis field mosquito populations. Evidence of multiple insecticide resistance was found in An. sinensis adult female populations. Medium to high frequencies of target site kdr together with fixed ace-1 mutations was detected in both the Ruian and Yongjia populations. Both populations showed an association between kdr L1014 mutation and resistance phenotype when tested against deltamethrin and DDT. Significantly different metabolic enzyme activities were found between the susceptible laboratory strain and field-collected mosquitoes from both Ruian and Yongjia. Both field collected An. sinensis populations exhibited significantly higher P450 enzyme activity compared with the laboratory strain, while the field-collected resistant mosquitoes exhibited various GST and COE enzyme activities. These results indicate multiple resistance mechanisms in An. sinensis field populations. Effective implementation of insecticide resistance management strategies is urgently needed. The data collected in this study will be valuable for modeling insecticide resistance spread and vector-control interventions.
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Affiliation(s)
- Shixin Chen
- College of Medical and Health, Lishui University, Lishui, China
| | - Qian Qin
- College of Medical and Health, Lishui University, Lishui, China
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Daibin Zhong
- Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA
| | - Xia Fang
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Hanjiang He
- College of Medical and Health, Lishui University, Lishui, China
| | - Linlin Wang
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Lingjun Dong
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Haiping Lin
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Mengqi Zhang
- Department of Parasitology, Wenzhou Medical University, Wenzhou, China
| | - Liwang Cui
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL
| | - Guiyun Yan
- Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA
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Braswell LR, Reisig DD, Sorenson CE, Collins GD. Development and Dispersal of Helicoverpa zea (Lepidoptera: Noctuidae) on Non-Bt and Bt Pyramided Cotton. ENVIRONMENTAL ENTOMOLOGY 2019; 48:465-477. [PMID: 30715246 DOI: 10.1093/ee/nvz006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 06/09/2023]
Abstract
Bollworm (Helicoverpa zea Boddie) (Lepidoptera: Noctuidae) can cause economic losses in both non-Bt and Bt cotton. Larvae modify their behavior in the presence of Bt by moving away from terminals faster in Bt cotton compared to non-Bt cotton and avoiding Bt-treated diets. Our objectives were to understand differences in bollworm egg and larvae populations within, and dispersal away from, non-Bt and Bt pyramided-toxin cotton. We conducted small plot experiments in 2016 and 2017 to monitor on-plant egg and larval numbers, and off-plant dispersal of larvae, from non-Bt and different Bt toxin pyramided cotton. Bollworm adults preferred to oviposit in most Bt toxin pyramids compared to non-Bt; this was likely unrelated to detection of Bt by adults, but rather density-dependent aversion from high larval populations. First instar numbers were similar in all non-Bt/Bt toxin pyramids and dispersed at a similar rate. Second through fifth instar numbers were higher in non-Bt than Bt toxin pyramids but dispersed equally from all non-Bt/Bt toxin pyramids, regardless of Bt pyramid type. Development times of larvae were often slower in Bt toxin pyramids compared to non-Bt. Fifth instars were found in, and dispersing from, Bt toxin pyramids containing Vip3A, raising concerns of resistance development. Furthermore, differences in oviposition rate among non-Bt/Bt toxin pyramids and slowed development rate of larvae on Bt varieties could create inconsistencies in generation times emerging from Bt and non-Bt hosts, which could contribute to resistance development.
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Affiliation(s)
- Lewis R Braswell
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Dominic D Reisig
- Department of Entomology and Plant Pathology, North Carolina State University, Vernon G. James Research and Extension Center, Plymouth, NC
| | - Clyde E Sorenson
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Guy D Collins
- Department of Crop and Soil Science, North Carolina State University, Upper Coastal Plain Research Station, Rocky Mount, NC
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Pereira AE, Coudron TA, Shelby K, French BW, Bernklau EJ, Bjostad LB, Hibbard BE. Comparative Susceptibility of Western Corn Rootworm (Coleoptera: Chrysomelidae) Neonates to Selected Insecticides and Bt Proteins in the Presence and Absence of Feeding Stimulants. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:842-851. [PMID: 30668732 DOI: 10.1093/jee/toy415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Indexed: 06/09/2023]
Abstract
The susceptibility of western corn rootworm, Diabrotica virgifera virgifera LeConte, larvae to nine insecticides from five different classes and to Bt proteins eCry3.1Ab and mCry3A in the presence or absence of feeding stimulants, was estimated in filter paper and diet toxicity assays, respectively. The use of a synthetic feeding stimulant blend of the sugars glucose, sucrose, and fructose plus linoleic acid at a ratio of 30:4:4:0.3 mg/ml of distilled water was evaluated to determine whether they increase the efficacy of insecticides and Bt proteins. The efficacy of thiamethoxam diluted in solutions with feeding stimulants was significantly increased when compared to thiamethoxam dilutions in water (>60-fold). Differences in the efficacy of the other insecticide classes when diluted in feeding stimulant solutions were no greater than fivefold when compared to the insecticides diluted in water. The presence of corn root juice as a natural feeding stimulant diminished toxicity of the insecticides, except for thiamethoxam, even though larval fresh weight was higher when fed on root juice compared to feeding stimulant or water. The use of feeding stimulants in diet toxicity assays did not enhance efficacy of eCry3.1Ab nor mCry3A proteins. Feeding stimulants can be recommended in combination with thiamethoxam to increase larval mortality. These results are discussed in terms of applicability of feeding stimulants to improve susceptibility of western corn rootworm larvae to pesticides in general.
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Affiliation(s)
| | - Thomas A Coudron
- Biological Control of Insect Research Laboratory, USDA/ARS, Columbia, MO
| | - Kent Shelby
- Biological Control of Insect Research Laboratory, USDA/ARS, Columbia, MO
| | - B Wade French
- North Central Agricultural Research Laboratory, USDA/ARS, Brookings, SD
| | - Elisa J Bernklau
- Department of Bioagricultural Sciences & Pest Management, Colorado State University, Fort Collins, CO
| | - Louis B Bjostad
- Department of Bioagricultural Sciences & Pest Management, Colorado State University, Fort Collins, CO
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Deshayes C, Moreau E, Pitti-Caballero J, Froger JA, Apaire-Marchais V, Lapied B. Synergistic agent and intracellular calcium, a successful partnership in the optimization of insecticide efficacy. CURRENT OPINION IN INSECT SCIENCE 2018; 30:52-58. [PMID: 30553485 DOI: 10.1016/j.cois.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 06/09/2023]
Abstract
Integrated Pest Management and Integrated Vector Management worldwide are developed in agriculture and public health to counteract and limit the exponential increasing development of insect resistance to insecticides. However, facing the predominance of some resistant populations, new strategies are urgently needed to target resistant insects. An innovative approach lies in the optimization of commonly used insecticides when combined with chemical or biological synergistic agents. By an increase of intracellular calcium concentration followed by activation of calcium-dependant signalling pathways, the synergistic agents are able to indirectly increase target sites sensitivity to insecticide by inducing conformational change. The synergistic agents are of great interest in optimizing the efficacy of insecticides and in overcoming resistance mechanisms.
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Affiliation(s)
- Caroline Deshayes
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France
| | - Eléonore Moreau
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France
| | - Javier Pitti-Caballero
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France
| | - Josy-Anne Froger
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France
| | - Véronique Apaire-Marchais
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France
| | - Bruno Lapied
- Laboratoire Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs (SiFCIR), UPRES-EA 2647, USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Boulevard Lavoisier, F-49045 Angers Cedex, France.
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Bantz A, Camon J, Froger JA, Goven D, Raymond V. Exposure to sublethal doses of insecticide and their effects on insects at cellular and physiological levels. CURRENT OPINION IN INSECT SCIENCE 2018; 30:73-78. [PMID: 30553488 DOI: 10.1016/j.cois.2018.09.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 06/09/2023]
Abstract
Insecticides were used as pest management tools for a long time. The appearance of resistant insects has led the scientific community to rethink their use and to study the mechanisms underlying the resistance in order to circumvent it. However, we know now that sublethal doses of insecticide induce many effects which should be taken into account for pest control. In this review, we summarized current knowledge on mechanisms used by insects to deal with exposure to sublethal dose of insecticides. Physiological and cellular changes could contribute to the adaptation of the insect to its environment making the challenge of managing pests difficult.
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Affiliation(s)
- Alexandre Bantz
- Laboratoire « Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs » (SiFCIR), UPRES-EA2647 USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Bld Lavoisier, 49045 Angers Cedex 01, France
| | - Jérémy Camon
- Laboratoire « Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs » (SiFCIR), UPRES-EA2647 USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Bld Lavoisier, 49045 Angers Cedex 01, France
| | - Josy-Anne Froger
- Laboratoire « Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs » (SiFCIR), UPRES-EA2647 USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Bld Lavoisier, 49045 Angers Cedex 01, France
| | - Delphine Goven
- Laboratoire « Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs » (SiFCIR), UPRES-EA2647 USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Bld Lavoisier, 49045 Angers Cedex 01, France
| | - Valérie Raymond
- Laboratoire « Signalisation Fonctionnelle des Canaux Ioniques et Récepteurs » (SiFCIR), UPRES-EA2647 USC INRA 1330, SFR 4207 QUASAV, UFR Sciences, Université d'Angers, 2 Bld Lavoisier, 49045 Angers Cedex 01, France.
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Saeed N, Tonina L, Battisti A, Mori N. Temperature Alters the Response to Insecticides in Drosophila suzukii (Diptera: Drosophilidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2018; 111:1306-1312. [PMID: 29659915 DOI: 10.1093/jee/toy080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 06/08/2023]
Abstract
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive pest in Europe and is a major threat to the soft fruit industry. Because of an ample temperature range, the pest spans from low to high elevation crops in mountain areas of the Southern Alps. Starting from field observations on the variable efficacy of insecticides under different temperatures, experiments were designed to test the efficacy of chemical families of insecticides available against this pest. Pyrethroids and spynosins proved to be the most effective under all temperature conditions (14, 22, and 30°C) in all assays. Organophosphates and neonicotinoids showed significantly lower efficacy at low temperatures, indicating that they are not suitable to protect crops under those conditions. The management of the pest in cold habitats, which are suitable for the cultivation of high-quality berries as for example in mountain farming systems, is constrained by a limited number of molecules available for fruit protection. Temperature has to be considered among factors affecting the decision-making process for the choice of registered formulations to be used in pest control.
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Affiliation(s)
- Nadia Saeed
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padua, Agripolis, Viale dell'Universita, Legnaro PD, Italy
| | - Lorenzo Tonina
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padua, Agripolis, Viale dell'Universita, Legnaro PD, Italy
| | - Andrea Battisti
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padua, Agripolis, Viale dell'Universita, Legnaro PD, Italy
| | - Nicola Mori
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padua, Agripolis, Viale dell'Universita, Legnaro PD, Italy
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Simpson AM, Jeyasingh PD, Belden JB. Assessment of biochemical mechanisms of tolerance to chlorpyrifos in ancient and contemporary Daphnia pulicaria genotypes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 193:122-127. [PMID: 29059598 DOI: 10.1016/j.aquatox.2017.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/14/2017] [Accepted: 10/16/2017] [Indexed: 06/07/2023]
Abstract
The evolution of tolerance to environmental contaminants in non-target taxa has been largely studied by comparing extant populations experiencing contrasting exposure. Previous research has demonstrated that "resurrected" genotypes from a population of Daphnia pulicaria express temporal variation in sensitivity to the insecticide chlorpyrifos. Ancient genotypes (1301-1646AD.) were on average more sensitive to this chemical compared to the contemporary genotypes (1967-1977AD.). To determine the physiological mechanisms of tolerance, a series of biochemical assays was performed on three ancient and three contemporary genotypes; these six genotypes exhibited the most sensitive and most tolerant phenotypes within the population, respectively. Metabolic tolerance mechanisms were evaluated using acute toxicity testing, while target-site tolerance was assessed via in vitro acetylcholinesterase (AChE) assays. Acute toxicity tests were conducted using i) the toxic metabolite chlorpyrifos-oxon (CPF-oxon) and ii) CPF-oxon co-applied with piperonyl butoxide (PBO), a known Phase-I metabolic inhibitor. Both series of toxicity tests reduced the mean variation in sensitivity between tolerant and sensitive genotypes. Exposure to CPF-O reduced the disparity from a 4.7-fold to 1.6-fold difference in sensitivity. The addition of PBO further reduced the variation to a 1.2-fold difference in sensitivity. In vitro acetylcholinesterase assays yielded no significant differences in constitutive activity or target-site sensitivity. These findings suggest that pathways involving Phase-I detoxification and/or bioactivation of chlorpyrifos play a significant role in dictating the microevolutionary trajectories of tolerance in this population.
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Affiliation(s)
- Adam M Simpson
- Oklahoma State University, Stillwater, OK 74078, United States; Penn State Erie, The Behrend College, Erie, PA 16563, United States.
| | | | - Jason B Belden
- Oklahoma State University, Stillwater, OK 74078, United States
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