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Wang P, Liu Q, Wang X, Sun T, Liu B, Wang B, Li H, Wang C, Sun W, Pan B. Point mutations in the voltage-gated sodium channel gene conferring pyrethroid resistance in China populations of the Dermanyssus gallinae. PEST MANAGEMENT SCIENCE 2024. [PMID: 38828899 DOI: 10.1002/ps.8223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Dermanyssus gallinae, the poultry red mite (PRM), is a worldwide ectoparasite posing significant economic challenges in poultry farming. The extensive use of pyrethroids for PRM control has led to the emergence of pyrethroid resistance. The objective of this study is to detect the pyrethroid resistance and explore its associated point mutations in the voltage-gated sodium channel (VGSC) gene among PRM populations in China. RESULTS Several populations of D. gallinae, namely CJF-1, CJP-2, CJP-3, CSD-4 and CLD-5, displayed varying degrees of resistance to beta-cypermethrin compared to a susceptible field population (CBP-5). Mutations of VGSC gene in populations of PRMs associated with pyrethroid resistance were identified through sequencing its fragments IIS4-IIS5 and IIIS6. The mutations I917V, M918T/L, A924G and L925V were present in multiple populations, while no mutations were found at positions T929, I936, F1534 and F1538. CONCLUSION The present study confirmed the presence of extremely high levels of pyrethroid resistance in PRM populations in China, and for the first time detected four pyrethroid resistance mutations in the VGSC gene. Identifying pyrethroid resistance in the field population of PRM in China can be achieved through screening for VGSC gene mutations as an early detection method. Our findings underscore the importance of implementing chemical PRM control strategies based on resistance evidence, while also considering the management of acaricide resistance in the control of PRMs. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Penglong Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qi Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xu Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Tiancong Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Boxing Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bohan Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Huan Li
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chuanwen Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Weiwei Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Baoliang Pan
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Pan D, Luo QJ, O Reilly AO, Yuan GR, Wang JJ, Dou W. Mutations of voltage-gated sodium channel contribute to pyrethroid resistance in Panonychus citri. INSECT SCIENCE 2024; 31:803-816. [PMID: 37650774 DOI: 10.1111/1744-7917.13266] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/08/2023] [Accepted: 07/25/2023] [Indexed: 09/01/2023]
Abstract
Insecticide resistance in Panonychus citri is a major obstacle to mite control in citrus orchards. Pyrethroid insecticides are continually used to control mites in China, although resistance to pyrethroids has evolved in some populations. Here, the resistance to the pyrethroid fenpropathrin was investigated and 7 out of 8 field-collected populations of P. citri exhibited a high level of resistance, ranging from 171-fold to 15 391-fold higher than the susceptible (SS) comparison strain. Three voltage-gated sodium channel (VGSC) mutations were identified in the tested populations: L1031V, F1747L, and F1751I. Amplicon sequencing was used to evaluate the frequency of these mutations in the 19 field populations. L1031V and F1751I were present in all populations at frequencies of 11.6%-82.1% and 0.5%-31.8%, respectively, whereas the F1747L mutation was only present in 12 populations from Chongqing, Sichuan, Guangxi, and Yunnan provinces. Introduction of these mutations singly or in combination into transgenic flies significantly increased their resistance to fenpropathrin and these flies also exhibited reduced mortality after exposure to the pyrethroids permethrin and β-cypermethrin. Panonychus citri VGSC homology modeling and ligand docking indicate that F1747 and F1751 form direct binding contacts with pyrethroids, which are lost with mutation, whereas L1031 mutation may diminish pyrethroid effects through an allosteric mechanism. Overall, the results provide molecular markers for monitoring pest resistance to pyrethroids and offer new insights into the basis of pyrethroid actions on sodium channels.
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Affiliation(s)
- Deng Pan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Academy of Agricultural Sciences, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Qiu-Juan Luo
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Academy of Agricultural Sciences, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Andrias O O Reilly
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Guo-Rui Yuan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Academy of Agricultural Sciences, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Academy of Agricultural Sciences, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Academy of Agricultural Sciences, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
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Zhang X, Zhang Y, Xu K, Qin J, Wang D, Xu L, Wang C. Identification and biochemical characterization of a carboxylesterase gene associated with β-cypermethrin resistance in Dermanyssus gallinae. Poult Sci 2024; 103:103612. [PMID: 38492248 PMCID: PMC10959707 DOI: 10.1016/j.psj.2024.103612] [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: 11/22/2023] [Revised: 02/25/2024] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Dermanyssus gallinae is a major hematophagous ectoparasite in layer hens. Although the acaricide β-cypermethrin has been used to control mites worldwide, D. gallinae has developed resistance to this compound. Carboxylesterases (CarEs) are important detoxification enzymes that confer resistance to β-cypermethrin in arthropods. However, CarEs associated with β-cypermethrin resistance in D. gallinae have not yet been functionally characterized. Here, we isolated a CarE gene (Deg-CarE) from D. gallinae and assayed its activity. The results revealed significantly higher expression of Deg-CarE in the β-cypermethrin-resistant strain (RS) than in the susceptible strain (SS) toward α-naphthyl acetate (α-NA) and β-naphthyl acetate (β-NA). These findings suggest that enhanced esterase activities might have contributed to β-cypermethrin resistance in D. gallinae. Quantitative real-time PCR analysis revealed that Deg-CarE expression levels were significantly higher in adults than in other life stages. Although Deg-CarE was upregulated in the RS, significant differences in gene copy numbers were not observed. Additionally, Deg-CarE expression was significantly induced by β-cypermethrin in both the SS and RS. Moreover, silencing Deg-CarE via RNA interference decreased the enzyme activity and increased the susceptibility of the RS to β-cypermethrin, confirming that Deg-CarE is crucial for β-cypermethrin detoxification. Finally, recombinant Deg-CarE (rDeg-CarE) expressed in Escherichia coli displayed high enzymatic activity toward α/β-NA. However, metabolic analysis indicated that rDeg-CarE did not directly metabolize β-cypermethrin. The collective findings indicate that D. gallinae resistance to β-cypermethrin is associated with elevated CarEs protein activity and increased Deg-CarE expression levels. These findings provide insights into the metabolic resistance of D. gallinae and offer scientific guidance for the management and control of D. gallinae.
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Affiliation(s)
- Xuedi Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Yue Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Kai Xu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Jianhua Qin
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Dehe Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Lijun Xu
- Baoding Livestock Husbandry workstation, Baoding 071023, Hebei, China
| | - Chuanwen Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071001, Hebei, China.
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Liu Q, Liu B, Sun T, Wang P, Sun W, Pan B. Vitellogenin and its upstream gene TOR play essential roles in the reproduction of Dermanyssus gallinae. Exp Parasitol 2024; 260:108746. [PMID: 38513972 DOI: 10.1016/j.exppara.2024.108746] [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: 12/18/2023] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
In Dermanyssus gallinae, a hematophagous mite, the initiation of vitellogenesis induced by blood feeding is essential for its reproduction. However, the precise gene structures and physiological functions of Vg in D. gallinae and its upstream gene, Target of Rapamycin (TOR), have not been fully understood. This study revealed the presence of four homologous genes within D. gallinae, named Dg-Vg1, Dg-Vg1-like, Dg-Vg2, and Dg-Vg2-like, especially, Dg-Vg2-like was firstly identified in the mites. The expression levels of all these Vg genes were significantly higher in adult females than other stages. Following blood feeding, the expression levels of these genes increased significantly, followed by a subsequent decrease, aligning with egg production. Silencing Dg-Vgs by RNA interference (RNAi) led to decreased fecundity and egg hatching rates, as well as abnormal embryonic development, suggesting a vital role for Dg-Vgs in both egg formation and embryonic development. Furthermore, the knockdown of Dg-TOR significantly reduced the expression of Dg-Vgs and negatively impacted the reproductive capabilities of PRMs, indicating that TOR influences PRM reproduction by regulating the expression of Dg-Vgs. In summary, these findings demonstrated the crucial roles of Dg-Vgs and Dg-TOR in PRM reproduction, highlighting their potential as targets for pest control.
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Affiliation(s)
- Qi Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Boxing Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Tiancong Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Penglong Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Weiwei Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China.
| | - Baoliang Pan
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China.
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Erdem E, Koç-İnak N, Rüstemoğlu M, İnak E. Geographical distribution of pyrethroid resistance mutations in Varroa destructor across Türkiye and a European overview. EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:309-321. [PMID: 38401013 PMCID: PMC11035437 DOI: 10.1007/s10493-023-00879-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/29/2023] [Indexed: 02/26/2024]
Abstract
Varroa destructor Anderson & Trueman (Acari: Varroidae) is of paramount significance in modern beekeeping, with infestations presenting a primary challenge that directly influences colony health, productivity, and overall apicultural sustainability. In order to control this mite, many beekeepers rely on a limited number of approved synthetic acaricides, including the pyrethroids tau-fluvalinate, flumethrin and organophosphate coumaphos. However, the excessive use of these substances has led to the widespread development of resistance in various beekeeping areas globally. In the present study, the occurrence of resistance mutations in the voltage-gated sodium channel (VGSC) and acetylcholinesterase (AChE), the target-site of pyrethroids and coumaphos, respectively, was examined in Varroa populations collected throughout the southeastern and eastern Anatolia regions of Türkiye. All Varroa samples belonged to the Korean haplotype, and a very low genetic distance was observed based on cytochrome c oxidase subunit I (COI) gene sequences. No amino acid substitutions were determined at the key residues of AChE. On the other hand, three amino acid substitutions, (L925V/I/M), previously associated with pyrethroid resistance, were identified in nearly 80% of the Turkish populations. Importantly, L925M, the dominant mutation in the USA, was detected in Turkish Varroa populations for the first time. To gain a more comprehensive perspective, we conducted a systematic analysis of the distribution of pyrethroid resistance mutations across Europe, based on the previously reported data. Varroa populations from Mediterranean countries such as Türkiye, Spain, and Greece exhibited the highest frequency of resistance mutation. Revealing the occurrence and geographical distribution of pyrethroid resistance mutations in V. destructor populations across the country will enhance the development of more efficient strategies for mite management.
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Affiliation(s)
- Esengül Erdem
- Plant Protection Department, Faculty of Agriculture, Şırnak University, Şirnak, Turkey
| | - Nafiye Koç-İnak
- Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, Altindag, 06070, Ankara, Turkey
| | - Mustafa Rüstemoğlu
- Plant Protection Department, Faculty of Agriculture, Şırnak University, Şirnak, Turkey
| | - Emre İnak
- Department of Plant Protection, Faculty of Agriculture, Ankara University, 06110, Ankara, Turkey.
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Wang P, Li H, Meng J, Liu Q, Wang X, Wang B, Liu B, Wang C, Sun W, Pan B. Activation of CncC pathway by ROS burst regulates ABC transporter responsible for beta-cypermethrin resistance in Dermanyssus gallinae (Acari:Dermanyssidae). Vet Parasitol 2024; 327:110121. [PMID: 38286058 DOI: 10.1016/j.vetpar.2024.110121] [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: 08/13/2023] [Revised: 01/02/2024] [Accepted: 01/14/2024] [Indexed: 01/31/2024]
Abstract
The drug resistance of poultry red mites to chemical acaricides is a global issue in the control of the mites, which presents an ongoing threat to the poultry industry. Though the increased production of detoxification enzymes has been frequently implicated in resistance development, the overexpression mechanism of acaricide-resistant related genes in mites remains unclear. In the present study, it was observed that the transcription factor Cap 'n' Collar isoform-C (CncC) and its partner small muscle aponeurosis fibromatosis (Maf) were highly expressed in resistant strains compared to sensitive strains under the stress of beta-cypermethrin. When the CncC/Maf pathway genes were down-regulated by RNA interference (RNAi), the expression of the ABC transporter genes was down-regulated, leading to a significant increase in the sensitivity of resistant strains to beta-cypermethrin, suggesting that CncC/Maf played a crucial role in mediating the resistance of D.gallinae to beta-cypermethrin by regulating ABC transporters. Furthermore, it was observed that the content of H2O2 and the activities of peroxidase (POD) and catalase (CAT) enzymes were significantly higher in resistant strains after beta-cypermethrin stress, indicating that beta-cypermethrin activates reactive oxygen species (ROS). In ROS scavenger assays, it was found that the expression of CncC/Maf significantly decreased, along with a decrease in the ABC transporter genes. The present study showed that beta-cypermethrin seemed to trigger the outbreak of ROS, subsequently activated the CncC/Maf pathway, as a result induced the ABC transporter-mediated resistance to the drug, shedding more light on the resistance mechanisms of D.gallinae to pyrethroids.
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Affiliation(s)
- Penglong Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Huan Li
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Jiali Meng
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Qi Liu
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Xu Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Bohan Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Boxing Liu
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Chuanwen Wang
- College of Veterinary Medicine, Hebei Agricultural University, No. 289 Lingyusi Street, Baoding 071001, Hebei, China
| | - Weiwei Sun
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China.
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China.
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7
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De Rouck S, İnak E, Dermauw W, Van Leeuwen T. A review of the molecular mechanisms of acaricide resistance in mites and ticks. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2023; 159:103981. [PMID: 37391089 DOI: 10.1016/j.ibmb.2023.103981] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/12/2023] [Accepted: 06/11/2023] [Indexed: 07/02/2023]
Abstract
The Arachnida subclass of Acari comprises many harmful pests that threaten agriculture as well as animal health, including herbivorous spider mites, the bee parasite Varroa, the poultry mite Dermanyssus and several species of ticks. Especially in agriculture, acaricides are often used intensively to minimize the damage they inflict, promoting the development of resistance. Beneficial predatory mites used in biological control are also subjected to acaricide selection in the field. The development and use of new genetic and genomic tools such as genome and transcriptome sequencing, bulked segregant analysis (QTL mapping), and reverse genetics via RNAi or CRISPR/Cas9, have greatly increased our understanding of the molecular genetic mechanisms of resistance in Acari, especially in the spider mite Tetranychus urticae which emerged as a model species. These new techniques allowed to uncover and validate new resistance mutations in a larger range of species. In addition, they provided an impetus to start elucidating more challenging questions on mechanisms of gene regulation of detoxification associated with resistance.
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Affiliation(s)
- Sander De Rouck
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Emre İnak
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium; Department of Plant Protection, Faculty of Agriculture, Ankara University, Dıskapı, 06110, Ankara, Turkiye
| | - Wannes Dermauw
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium; Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant Sciences Unit, 9820 Merelbeke, Belgium
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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Niklas B, Rydzewski J, Lapied B, Nowak W. Toward Overcoming Pyrethroid Resistance in Mosquito Control: The Role of Sodium Channel Blocker Insecticides. Int J Mol Sci 2023; 24:10334. [PMID: 37373481 DOI: 10.3390/ijms241210334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Diseases spread by mosquitoes lead to the death of 700,000 people each year. The main way to reduce transmission is vector control by biting prevention with chemicals. However, the most commonly used insecticides lose efficacy due to the growing resistance. Voltage-gated sodium channels (VGSCs), membrane proteins responsible for the depolarizing phase of an action potential, are targeted by a broad range of neurotoxins, including pyrethroids and sodium channel blocker insecticides (SCBIs). Reduced sensitivity of the target protein due to the point mutations threatened malaria control with pyrethroids. Although SCBIs-indoxacarb (a pre-insecticide bioactivated to DCJW in insects) and metaflumizone-are used in agriculture only, they emerge as promising candidates in mosquito control. Therefore, a thorough understanding of molecular mechanisms of SCBIs action is urgently needed to break the resistance and stop disease transmission. In this study, by performing an extensive combination of equilibrium and enhanced sampling molecular dynamics simulations (3.2 μs in total), we found the DIII-DIV fenestration to be the most probable entry route of DCJW to the central cavity of mosquito VGSC. Our study revealed that F1852 is crucial in limiting SCBI access to their binding site. Our results explain the role of the F1852T mutation found in resistant insects and the increased toxicity of DCJW compared to its bulkier parent compound, indoxacarb. We also delineated residues that contribute to both SCBIs and non-ester pyrethroid etofenprox binding and thus could be involved in the target site cross-resistance.
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Affiliation(s)
- Beata Niklas
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
| | - Jakub Rydzewski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
| | - Bruno Lapied
- University Angers, INRAE, SIFCIR, SFR QUASAV, F-49045 Angers, France
| | - Wieslaw Nowak
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
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9
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Schiavone A, Price DRG, Pugliese N, Burgess STG, Siddique I, Circella E, Nisbet AJ, Camarda A. Profiling of Dermanyssus gallinae genes involved in acaricide resistance. Vet Parasitol 2023; 319:109957. [PMID: 37207568 DOI: 10.1016/j.vetpar.2023.109957] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/21/2023]
Abstract
The poultry red mite (PRM), Dermanyssus gallinae, is a major threat for the poultry industry worldwide. Chemical compounds have been extensively used for PRM control, leading to selection of resistant mites. Molecular mechanisms of resistance have been investigated in arthropods, showing the role of target-site insensitivity and enhanced detoxification. Few studies are available about those mechanisms in D. gallinae, and none have yet focused on the expression levels of detoxification enzymes and other defense-related genes through RNA-seq. We tested PRM populations from Italy for their susceptibility to the acaricidal compounds phoxim and cypermethrin. Mutations in the voltage-gated sodium channel (vgsc) and in acetylcholinesterase (AChE) were investigated, detecting mutations known to be associated with acaricide/insecticide resistance in arthropods, including M827I and M918L/T in the vgsc and G119S in the AChE. RNA-seq analysis was performed to characterize metabolic resistance in fully susceptible PRM and in cypermethrin-resistant PRM exposed and unexposed to cypermethrin as well as phoxim resistant PRM exposed and unexposed to phoxim. Detoxification enzymes (including P450 monooxygenases and glutathione-S-transferases), ABC transporters and cuticular proteins were constitutively overexpressed in phoxim and cypermethrin resistant mites. In addition, heat shock proteins were found constitutively and inductively upregulated in phoxim resistant mites, while in cypermethrin resistant mites esterases and an aryl hydrocarbon receptor were constitutively highly expressed. The findings suggest that acaricide resistance in D. gallinae is due to both target-site insensitivity and overexpression of detoxification enzymes and other xenobiotic defense-related genes, which is mostly constitutive and not induced by treatment. Understanding the molecular basis of resistance could be useful to screen or test PRM populations in order to select targeted acaricides and to avoid the abuse/misuse of the few available compounds.
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Affiliation(s)
- Antonella Schiavone
- Department of Veterinary Medicine, University of Bari, Valenzano 70010, Italy.
| | - Daniel R G Price
- Moredun Research Institute, Pentlands Science Park, Edinburgh EH26 0PZ, United Kingdom
| | - Nicola Pugliese
- Department of Veterinary Medicine, University of Bari, Valenzano 70010, Italy
| | - Stewart T G Burgess
- Moredun Research Institute, Pentlands Science Park, Edinburgh EH26 0PZ, United Kingdom
| | - Ifra Siddique
- Department of Veterinary Medicine, University of Bari, Valenzano 70010, Italy
| | - Elena Circella
- Department of Veterinary Medicine, University of Bari, Valenzano 70010, Italy
| | - Alasdair J Nisbet
- Moredun Research Institute, Pentlands Science Park, Edinburgh EH26 0PZ, United Kingdom
| | - Antonio Camarda
- Department of Veterinary Medicine, University of Bari, Valenzano 70010, Italy
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De Beer B, Vandenhole M, Njiru C, Spanoghe P, Dermauw W, Van Leeuwen T. High-Resolution Genetic Mapping Combined with Transcriptome Profiling Reveals That Both Target-Site Resistance and Increased Detoxification Confer Resistance to the Pyrethroid Bifenthrin in the Spider Mite Tetranychus urticae. BIOLOGY 2022; 11:1630. [PMID: 36358331 PMCID: PMC9687926 DOI: 10.3390/biology11111630] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/24/2023]
Abstract
Pyrethroids are widely applied insecticides in agriculture, but their frequent use has provoked many cases of resistance, in which mutations in the voltage-gated sodium channel (VGSC), the pyrethroid target-site, were shown to play a major role. However, for the spider mite Tetranychus urticae, it has also been shown that increased detoxification contributes to resistance against the pyrethroid bifenthrin. Here, we performed QTL-mapping to identify the genomic loci underlying bifenthrin resistance in T. urticae. Two loci on chromosome 1 were identified, with the VGSC gene being located near the second QTL and harboring the well-known L1024V mutation. In addition, the presence of an L925M mutation in the VGSC of a highly bifenthrin-resistant strain and its loss in its derived, susceptible, inbred line indicated the importance of target-site mutations in bifenthrin resistance. Further, RNAseq experiments revealed that genes encoding detoxification enzymes, including carboxyl/choline esterases (CCEs), cytochrome P450 monooxygenases and UDP-glycosyl transferases (UGTs), were overexpressed in resistant strains. Toxicity bioassays with bifenthrin (ester pyrethroid) and etofenprox (non-ester pyrethroid) also indicated a possible role for CCEs in bifenthrin resistance. A selection of CCEs and UGTs were therefore functionally expressed, and CCEinc18 was shown to metabolize bifenthrin, while teturUGT10 could glycosylate bifenthrin-alcohol. To conclude, our findings suggest that both target-site and metabolic mechanisms underlie bifenthrin resistance in T. urticae, and these might synergize high levels of resistance.
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Affiliation(s)
- Berdien De Beer
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Marilou Vandenhole
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Christine Njiru
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Pieter Spanoghe
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Wannes Dermauw
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Burg. Van Gansberghelaan 96, 9820 Merelbeke, Belgium
| | - Thomas Van Leeuwen
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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11
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Laboratory and field efficacy of terpene combinations (carvacrol, thymol and menthol) against the poultry red mite (Dermanyssus gallinae). Vet Parasitol 2022; 313:109842. [DOI: 10.1016/j.vetpar.2022.109842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022]
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12
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Jian Y, Yuan H, Li D, Guo Q, Li X, Zhang S, Ning C, Zhang L, Jian F. Evaluation of the in vitro acaricidal activity of Chinese herbal compounds on the poultry red mite (Dermanyssus gallinae). Front Vet Sci 2022; 9:996422. [PMID: 36238438 PMCID: PMC9551093 DOI: 10.3389/fvets.2022.996422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/16/2022] [Indexed: 11/24/2022] Open
Abstract
The poultry red mite Dermanyssus gallinae is an economically important pest in poultry farms worldwide, but an effective treatment option is lacking. The current study determined the effectiveness of six Chinese herbal medicines [Syzygium aromaticum (clove), Hibiscus syriacus (Hibiscus), Illicium verum (star anise), Leonurus artemisia (motherwort), Cinnamomum cassia (cinnamon), and Taraxacum sp. (dandelion)] against D. gallinae. Alcohol extracts were prepared via the solvent extraction method and the phenol, flavonoid, and tannin contents were determined. These active components were highest in S. aromaticum and lowest in H. syriacus, I. verum. No tannin content was detected in L. artemisia. All extracts showed contact toxicity against D. gallinae at a test concentration of 1 g/mL, with S. aromaticum and L. artemisia resulting in 100% mortality. S. aromaticum, L. artemisia, and I. verum showed the best efficacy (LC50 0.159, 0.200, and 0.292 g/mL, respectively). Different combinations of extracts showed an additive effect of I. verum LC90 + L. artemisia LC90. The acaricidal efficacy of this combination was tested against different developmental stages of D. gallinae, being most efficacious against nymphal and larval D. gallinae, with a corrected mortality rate of 100%. However, inhibition of egg hatching was only 53.69%. Taken together, these results highlight I. verum LC90 + L. artemisia LC90 as a promising compound with severe contact toxicity against D. gallinae. Given the wide cultivation of these species and their extensive use in foodstuffs and cosmetics as flavors and fragrances, they could be a cheap, readily available ecofriendly alternative to pesticides currently used in poultry farms.
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Affiliation(s)
- Yichen Jian
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Huizhen Yuan
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Dongliang Li
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Qing Guo
- Hennan Hemu Animal Pharmaceutical Co., Ltd., Zhengzhou, China
| | - Xiaoying Li
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Sumei Zhang
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Changshen Ning
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Longxian Zhang
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Fuchun Jian
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
- *Correspondence: Fuchun Jian ;
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13
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Guerrini A, Morandi B, Roncada P, Brambilla G, Dini FM, Galuppi R. Evaluation of the Acaricidal Effectiveness of Fipronil and Phoxim in Field Populations of Dermanyssus gallinae (De Geer, 1778) from Ornamental Poultry Farms in Italy. Vet Sci 2022; 9:vetsci9090486. [PMID: 36136703 PMCID: PMC9504075 DOI: 10.3390/vetsci9090486] [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: 07/26/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 12/01/2022] Open
Abstract
The poultry red mite Dermanyssus gallinae is the most important blood-sucking ectoparasite in egg-laying hen facilities. The aim of this study was to evaluate the in vitro acaricidal activity of different concentration of authorized (phoxim, ByeMite®, 500 mg/mL) and unauthorized (fipronil, Frontline® 250 mg/100 mL spray) molecules on 14 field isolates of D. gallinae collected from different ornamental poultry farms from different Italian regions. The sensitivity test was performed by contact exposure to four concentrations of each insecticide diluted at 1:5 (10,000-2000-400-80 ppm for phoxim, 500-100-20-4 ppm for fipronil) on a filter paper. The effectiveness of the treatment was significantly (p < 0.0001) associated with the dose of the pesticide used. Considering the mean lethality, phoxim has greater efficacy compared to fipronil (p < 0.001). A great variability of lethality rate was observed with the increase in fipronil dilution; conversely, for phoxim, some outliers were observed, particularly in one farm, suggesting the hypothesis that a certain degree of resistance in the mite population could occur possibly as a consequence of the continual contact with the molecule. This underlines the importance of the use of licensed products administered at correct dosages and the need for alternative molecules to avoid the onset of drug resistance phenomena.
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Affiliation(s)
- Alessandro Guerrini
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell’Emilia, 40064 Bologna, Italy
- Correspondence:
| | - Benedetto Morandi
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, Via Salvemini 1, 06126 Perugia, Italy
| | - Paola Roncada
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell’Emilia, 40064 Bologna, Italy
| | - Gianfranco Brambilla
- Istituto Superiore di Sanità, Dipartimento Sicurezza Alimentare, Nutrizione e Sanità Pubblica Veterinaria, Reparto Malattie Trasmissibili con gli Alimenti, Viale Regina Elena, 299, 00161 Roma, Italy
| | - Filippo Maria Dini
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell’Emilia, 40064 Bologna, Italy
| | - Roberta Galuppi
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell’Emilia, 40064 Bologna, Italy
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14
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Zhorov BS, Dong K. Pyrethroids in an AlphaFold2 Model of the Insect Sodium Channel. INSECTS 2022; 13:745. [PMID: 36005370 PMCID: PMC9409284 DOI: 10.3390/insects13080745] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 05/13/2023]
Abstract
Pyrethroid insecticides stabilize the open state of insect sodium channels. Previous mutational, electrophysiological, and computational analyses led to the development of homology models predicting two pyrethroid receptor sites, PyR1 and PyR2. Many of the naturally occurring sodium channel mutations, which confer knockdown resistance (kdr) to pyrethroids, are located within or close to these receptor sites, indicating that these mutations impair pyrethroid binding. However, the mechanism of the state-dependent action of pyrethroids and the mechanisms by which kdr mutations beyond the receptor sites confer resistance remain unclear. Recent advances in protein structure prediction using the AlphaFold2 (AF2) neural network allowed us to generate a new model of the mosquito sodium channel AaNav1-1, with the activated voltage-sensing domains (VSMs) and the presumably inactivated pore domain (PM). We further employed Monte Carlo energy minimizations to open PM and deactivate VSM-I and VSM-II to generate additional models. The docking of a Type II pyrethroid deltamethrin in the models predicted its interactions with many known pyrethroid-sensing residues in the PyR1 and PyR2 sites and revealed ligand-channel interactions that stabilized the open PM and activated VSMs. Our study confirms the predicted two pyrethroid receptor sites, explains the state-dependent action of pyrethroids, and proposes the mechanisms of the allosteric effects of various kdr mutations on pyrethroid action. The AF2-based models may assist in the structure-based design of new insecticides.
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Affiliation(s)
- Boris S. Zhorov
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
- Sechenov Institute of Evolutionary Physiology & Biochemistry, Russian Academy of Sciences, Saint Petersburg 194223, Russia
- Almazov National Medical Research Centre, Saint Petersburg 197341, Russia
| | - Ke Dong
- Department of Biology, Duke University, Durham, NC 27708, USA
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15
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Benito-Murcia M, Martín-Hernández R, Meana A, Botías C, Higes M. Study of pyrethroid resistance mutations in populations of Varroa destructor across Spain. Res Vet Sci 2022; 152:34-37. [PMID: 35917591 DOI: 10.1016/j.rvsc.2022.07.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/21/2022] [Accepted: 07/24/2022] [Indexed: 10/16/2022]
Abstract
The Varroa destructor mite is a serious worldwide pest of honeybees that is usually controlled with pyrethroid-based acaricides. However, the intensive use of these substances over the past decades has led to the development of resistance in these mites. Here, Varroa samples collected between 2006 and 2021 from apiaries across Spain were studied to evaluate the presence of mutations producing pyrethroid resistance, particularly those in the gene encoding the voltage-gated sodium channel (VGSC). Genotyping of the IIS4-IIS5 region of this gene detected the L925V (Leucine 'CTG' to valine 'GTG') mutation at position 925 and confirmed the presence of the M918L (Methionine 'ATG' to Leucine 'TTG') mutation at position 918 in these Spanish Varroa mites. Interestingly, the M918L mutation was always found in combination with L925V, both of which were always homozygous. Over and above the high frequency of pyrethroid-resistant mutations in Spanish Varroa populations, this apparently recent association of the M918L and L925V point mutations is a combination that appears to trigger greater resistance than that produced by L925V alone.
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Affiliation(s)
- M Benito-Murcia
- Centro de Investigación Apícola y Agroambiental (CIAPA), Laboratorio de Patología Apícola, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal (IRIAF), 19180 Marchamalo, Spain
| | - R Martín-Hernández
- Centro de Investigación Apícola y Agroambiental (CIAPA), Laboratorio de Patología Apícola, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal (IRIAF), 19180 Marchamalo, Spain; Instituto de Recursos Humanos para la Ciencia y la Tecnología (INCRECYT-FEDER), Fundación Parque Científico y Tecnológico de Castilla-La Mancha, 02008 Albacete, Spain
| | - A Meana
- Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - C Botías
- Centro de Investigación Apícola y Agroambiental (CIAPA), Laboratorio de Patología Apícola, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal (IRIAF), 19180 Marchamalo, Spain
| | - M Higes
- Centro de Investigación Apícola y Agroambiental (CIAPA), Laboratorio de Patología Apícola, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal (IRIAF), 19180 Marchamalo, Spain.
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16
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Xu X, Wang C, Liu Q, Huang Y, Sun W, Pan B. Two ferritins from Dermanyssus gallinae: characterization and in vivo assessment as protective antigens. PEST MANAGEMENT SCIENCE 2022; 78:561-571. [PMID: 34595835 DOI: 10.1002/ps.6664] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/04/2021] [Accepted: 09/30/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND The poultry red mite, Dermanyssus gallinae is recognized worldwide as the most important bloodsucking ectoparasite in layer and breeder flocks. In bloodsucking ectoparasites, ferritins (FERs), the iron-storage proteins, play a pivotal role in dealing with the challenge of large amounts of released iron during the digestion of blood meal. However, no information is available concerning FERs of D. gallinae. The aim of the present study was to investigate the characteristics, functions and the vaccine efficacy of FERs in D. gallinae. RESULTS Two heavy-chain FERs of D. gallinae were identified and characterized. Phylogenetic analysis indicated that Dg-FER1 may be a secretory FER and Dg-FER2 an intracellular one. RNAi results demonstrated that Dg-fers play key roles in mite survival, successful reproduction and blood digestion. Immunization with rDg-FER1 or rDg-FER2 successfully induced chickens to produce high levels of antigen-specific IgY, resulting in a significant increase in mite mortality (by 58.67% on Day 5) and decreases in oviposition (by 42.15%) and fecundity (by 68.97%) in the rDg-FER1 group, and a 13.73% increase in mite mortality and a 20.89% decrease in fecundity in the rDg-FER1 group. The overall immunization efficacy of rDg-FER1 was 93.51%. CONCLUSION Two Dg-FERs are crucial to the survival, reproduction and blood digestion of D. gallinae. This study has provided preliminary evidence demonstrating the potential of rDg-FER1 as a vaccine antigen for D. gallinae. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xiaolin Xu
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chuanwen Wang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qi Liu
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yu Huang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Weiwei Sun
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Baoliang Pan
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
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17
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Koç N, İnak E, Nalbantoğlu S, Alpkent YN, Dermauw W, Van Leeuwen T. Biochemical and molecular mechanisms of acaricide resistance in Dermanyssus gallinae populations from Turkey. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 180:104985. [PMID: 34955178 DOI: 10.1016/j.pestbp.2021.104985] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 06/14/2023]
Abstract
The poultry red mite, Dermanyssus gallinae, is the most important blood sucking ectoparasite of egg laying hens and causes economic losses in poultry farms worldwide. Although various management methods exist, the control of poultry red mites (PRMs) mainly relies on acaricides such as pyrethroids and organophosphates (OPs) in many regions of the world. However, repeated use of these synthetic chemicals has resulted in resistance development causing control failure of PRM. In this study, we investigated acaricide resistance mechanisms of Turkish PRM populations. First, we obtained the COI sequence from 30 PRM populations from different regions in Turkey and identified four different COI haplotypes. Toxicity assays showed that four field-collected PRM populations were highly resistant to the pyrethroid alpha-cypermethrin, with resistance ratios (RRs) varying between 100- and 400-fold, while two of these populations had a RR of more than 24-fold against the OP acaricide phoxim. Biochemical assays showed a relatively higher activity of glutathione-S-transferases and carboxyl-cholinesterases, two well-known classes of detoxification enzymes, in one of these resistant populations. In addition, we also screened for mutations in the gene encoding the voltage-gated sodium channel (vgsc) and acetylcholinesterase 1 (ace-1), the target-site of pyrethroids and OPs, respectively. In all but two PRM populations, at least one vgsc mutation was detected. A total of four target-site mutations, previously associated with pyrethroid resistance, M918T, T929I, F1534L, F1538L were found in domain II and III of the VGSC. The T929I mutation was present in the vgsc of almost all PRM populations, while the other mutations were only found at low frequency. The G119S/A mutation in ace-1, previously associated with OP resistance, was found in PRM for the first time and present in fourteen populations. Last, both alive and dead PRMs were genotyped after pesticide exposure and supported the possible role of target-site mutations, T929I and G119S, in alpha-cypermethrin and phoxim resistance, respectively. To conclude, our study provides a current overview of resistance levels and resistance mutations in Turkish PRM populations and might aid in the design of an effective resistance management program of PRM in Turkey.
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Affiliation(s)
- Nafiye Koç
- Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, Diskapi 06110, Ankara, Turkey
| | - Emre İnak
- Department of Plant Protection, Faculty of Agriculture, Ankara University, Diskapi 06110, Ankara, Turkey
| | - Serpil Nalbantoğlu
- Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, Diskapi 06110, Ankara, Turkey
| | - Yasin Nazım Alpkent
- Republic of Turkey Ministry of Agriculture and Forestry Directorate of Plant Protection Central Research Institute, Ministry of Agriculture and Forestry, Yenimahalle 06172, Ankara, Turkey
| | - Wannes Dermauw
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant Sciences Unit, 8920 Merelbeke, Belgium; Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
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18
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Vlogiannitis S, Jonckheere W, Laget D, de Graaf DC, Vontas J, Van Leeuwen T. Pyrethroid target-site resistance mutations in populations of the honey bee parasite Varroa destructor (Acari: Varroidae) from Flanders, Belgium. EXPERIMENTAL & APPLIED ACAROLOGY 2021; 85:205-221. [PMID: 34676469 DOI: 10.1007/s10493-021-00665-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
The honey bee ectoparasite Varroa destructor is considered the major threat to apiculture, as untreated colonies of Apis mellifera usually collapse within a few years. In order to control this mite, many beekeepers rely on a limited number of approved synthetic acaricides, including the pyrethroids tau-fluvalinate and flumethrin. Due to the intensive use of these products, resistance is now commonplace in many beekeeping regions across the world. In the present study, the occurrence of amino acid substitutions at residue L925 of the voltage-gate sodium channel-the pyrethroid target site-was studied in Varroa populations collected throughout Flanders, Belgium. Dose-response bioassays supported the involvement of the frequently observed L925V substitution in flumethrin resistance, resulting in a 12.64-fold increase of the LC50 in a Varroa population mostly consisting of homozygous 925 V/V mites. With the presence of L925 substitutions in about four out of 10 screened apiaries, the use of pyrethroid-based varroacides in Flanders, including the recently released PolyVar® Yellow, should be carefully considered.
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Affiliation(s)
- Spyridon Vlogiannitis
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Street, 11855, Athens, Greece
| | - Wim Jonckheere
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Dries Laget
- Laboratory of Molecular Entomology and Bee Pathology, Faculty of Sciences, Ghent University, Krijgslaan 281, S2, 9000, Ghent, Belgium
| | - Dirk C de Graaf
- Laboratory of Molecular Entomology and Bee Pathology, Faculty of Sciences, Ghent University, Krijgslaan 281, S2, 9000, Ghent, Belgium
| | - John Vontas
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Street, 11855, Athens, Greece
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology, Hellas, 100 N. Plastira Street, 700 13, Heraklion, Crete, Greece
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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Wang K, Zhao JN, Bai JY, Shang YZ, Zhang SQ, Hou YF, Chen MH, Han ZJ. Pyrethroid Resistance and Fitness Cost Conferred by the super-kdr Mutation M918L in Rhopalosiphum padi (Hemiptera: Aphididae). JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1789-1795. [PMID: 34137856 DOI: 10.1093/jee/toab117] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Pyrethroid insecticides have been widely utilized for insect pest control. Target-site resistance is one of the major mechanisms explaining pest resistance to pyrethroids. This study quantified pyrethroid resistance and fitness cost conferred by the voltage-gated sodium channel (VGSC) M918L mutation in Rhopalosiphum padi. Six s-kdr-SS and six s-kdr-RS parthenogenetic lineages were established from the same field population and were reared in the laboratory without exposure to pesticides for more than one year. Enzyme activity analysis demonstrated that metabolic resistance had no impact on these lineages. Bioassays showed that the M918L mutation strongly affected pyrethroid efficiency, conferring moderate resistance to bifenthrin (type I) (39.0-fold) and high resistance to lambda-cyhalothrin (type II) (194.7-fold). Compared with the life table of s-kdr-SS lineages, s-kdr-RS lineages exhibited a relative fitness cost with significant decreases in longevity and fecundity. Meanwhile, competitive fitness was measured by blending various ratios of s-kdr-SS and s-kdr-SS aphids. The results indicated that M918L-mediated resistance showed a significant fitness cost in the presence of wild aphids without insecticide pressure. The fitness cost strongly correlated with the initial resistance allele frequency. This work characterized the novel s-kdr M918L mutation in R. padi, defined its function in resistance to different types of pyrethroids, and documented that the M918L-mediated resistance has a significant fitness cost.
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Affiliation(s)
- Kang Wang
- Nanjing Agricultural University, Nanjing, Jiangsu, China
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Jun Ning Zhao
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Jiao Yang Bai
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Yun Zhu Shang
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Si Qian Zhang
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Yi Fan Hou
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Mao Hua Chen
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Zhao Jun Han
- Nanjing Agricultural University, Nanjing, Jiangsu, China
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20
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Pares RB, Alves DS, Alves LFA, Godinho CC, Gobbo Neto L, Ferreira TT, Nascimento MM, Ascari J, Oliveira DF. Acaricidal Activity of Annonaceae Plants for Dermanyssus gallinae (Acari: Dermanyssidae) and Metabolomic Profile by HPLC-MS/MS. NEOTROPICAL ENTOMOLOGY 2021; 50:662-672. [PMID: 34184236 DOI: 10.1007/s13744-021-00885-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 05/19/2021] [Indexed: 06/13/2023]
Abstract
The poultry red mite Dermanyssus gallinae (De Geer) is the most important haematophagous ectoparasite in the poultry industry. The use of synthetic acaricides for this control is presenting risks related to human food. In this sense, plant secondary metabolites are promising for controlling this pest. Thus, this study aimed to evaluate the acaricidal activity of Duguetia lanceolata A.St.-Hil. (stem bark), Xylopia emarginata Mart. (stem bark), and Xylopia sericea A.St.-Hil. (stem bark and fruits) against D. gallinae. Additionally, the secondary metabolite profile of the X. emarginata was analysed by UFLC-DAD-ESI(+)-MS/MS (micrOTOF-QII) and data analysis was performed using the Molecular Networking. In a topical application test, all plant species tested showed bioactivity, in that order of toxicity with the respective probability survival: X. emarginata (stem bark) (0.28) > X. sericea (stem barks) (0.35) > X. sericea (fruits) and D. lanceolata (stem bark) (0.47). The most promising results were found for X. emarginata (LC50 = 331.769 μg/cm2). It is noteworthy that the LC50 of the insecticide cypermethrin was 1234.4 μg/cm2, which was 73% higher than that of X. emarginata. The metabolomic profile of X. emarginata revealed the presence of alkaloids, amides, terpenoids, and phenolic compounds. This is the first report of X. emarginata acaricidal activity against D. gallinae and exploratory chemical analysis by untargeted metabolomics and the molecular network of this plant.
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Affiliation(s)
| | - Dejane Santos Alves
- Univ Tecnológica Federal do Paraná - UTFPR, Santa Helena, Paraná, CEP 85892-000, Brazil.
| | | | | | | | | | | | - Jociani Ascari
- Univ Tecnológica Federal do Paraná - UTFPR, Santa Helena, Paraná, CEP 85892-000, Brazil
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21
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Koç N, Nalbantoğlu S. Evaluation of in-house factors affecting the population distribution of Dermanyssus gallinae in cage and backyard rearing systems by using a modified monitoring method. EXPERIMENTAL & APPLIED ACAROLOGY 2021; 84:529-541. [PMID: 34156563 DOI: 10.1007/s10493-021-00638-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Dermanyssus gallinae (poultry red mite, PRM) is a main ectoparasite of poultry that represents a serious economic threat to all farming systems, including cages and backyard flocks. In recent years, economic losses associated with this ectoparasite have progressively increased, mainly because of the lack of information regarding its population dynamics and appropriate control methods. In this study, we used a modified monitoring method to examine the in-house factors affecting the population density of D. gallinae. PRMs have been found in all poultry houses examined in Turkey. The largest population was detected in the front and back parts of the middle rows in cage systems as well as in perches in backyard systems. Relative humidity, light, and temperature might be the most affecting factors on the mite distribution inside the poultry houses. Besides, the mite populations are influenced mainly by the last (chemical) treatment date and the construction materials of the building. Dermanyssus gallinae were found to be the most dominant mite species (98.9%), followed by Cheyletus sp. (Cheyletidae); also some Acaridae (Tyrophagus spp.) and Oribatida were identified. Hence, further research on Cheyletus sp. is required to elucidate their predatory potential and develop future control strategies. This study contributes to understanding the PRM population behavior in poultry houses as well as their monitoring and control methods, which are key components in the appropriate application of integrated pest management programs.
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Affiliation(s)
- Nafiye Koç
- Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, 06110, Dışkapı, Ankara, Turkey.
| | - Serpil Nalbantoğlu
- Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, 06110, Dışkapı, Ankara, Turkey
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22
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Moroni B, Barlaam A, Misia AL, Peano A, Rossi L, Giangaspero A. Dermanyssus gallinae in non-avian hosts: A case report in a dog and review of the literature. Parasitol Int 2021; 84:102378. [PMID: 33975002 DOI: 10.1016/j.parint.2021.102378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/16/2021] [Accepted: 05/05/2021] [Indexed: 11/16/2022]
Abstract
Non-avian attacks of the worldwide distributed mite Dermanyssus gallinae are occasionally reported. However, it is widely accepted that their occurrence is underestimated. The present study aims to describe the first Italian case of dermanyssosis in a dog, to molecularly characterize the mites collected from the patient and the animal enclosure, where poultry and dog were confined, and to review the current literature on the non-avian attacks by D. gallinae. The dog was successfully treated with an oral sarolaner-based product, followed by a spot-on formulation of imidacloprid and moxidectin. The infestation source was likely attributable to poultry and confirmed by molecular identification of D. gallinae sensu strictu. Ten articles on non-avian D. gallinae attacks in domestic animals and wildlife were retrieved, pointing out the need for more awareness amongst practitioners. The therapeutic effect of available antiparasitic drugs, currently used off-label, should also be better explored in non-avian hosts.
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Affiliation(s)
- Barbara Moroni
- Department of Veterinary Sciences, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy.
| | - Alessandra Barlaam
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121, Italy; Faculty of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy.
| | - Ambra Lisa Misia
- Department of Veterinary Science, University of Perugia, Via S. Costanzo 4, 06126, Perugia, Italy.
| | - Andrea Peano
- Department of Veterinary Sciences, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy.
| | - Luca Rossi
- Department of Veterinary Sciences, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy.
| | - Annunziata Giangaspero
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121, Italy.
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23
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Ariizumi T, Murata S, Fujisawa S, Isezaki M, Maekawa N, Okagawa T, Sato T, Oishi E, Taneno A, Konnai S, Ohashi K. Selection of reference genes for quantitative PCR analysis in poultry red mite (Dermanyssus gallinae). J Vet Med Sci 2021; 83:558-565. [PMID: 33583914 PMCID: PMC8111338 DOI: 10.1292/jvms.20-0677] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Poultry red mites (PRMs, Dermanyssus gallinae) are harmful ectoparasites
that affect farmed chickens and cause serious economic losses in the poultry industry
worldwide. Acaricides are used for PRM control; however, some PRMs have developed
acaricide-resistant properties, which have indicated the need for different approaches for
PRM control. Therefore, it is necessary to elucidate the biological status of PRMs to
develop alternative PRM control strategies. Quantitative polymerase chain reaction (qPCR)
allows analysis of the biological status at the transcript level. However, reference genes
are preferable for accurate comparison of expression level changes given the large
variation in the quality of the PRM samples collected in each farm. This study aimed to
identify candidate reference genes with stable expression levels in the different blood
feeding states and life stages of PRMs. First, we selected candidates based on the
following criteria: sufficient expression intensity and no significant expression
difference between fed and starved states. We selected and characterized seven candidate
reference genes. Among them, we evaluated the gene expression stability between the
starved and fed states using RefFinder; moreover, we compared their expression levels in
each life-stage and identified two reference genes, Elongation factor
1-alpha (ELF1A)-like and apolipophorins-like.
Finally, we evaluated the utility of the candidates as reference genes, and the use of
ELF1A-like and apolipophorins-like successfully
normalized ATP synthase subunit g -like gene expression. Thus,
ELF1A-like and apolipophorins-like could be suitable
reference genes in PRMs.
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Affiliation(s)
- Takuma Ariizumi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Shiro Murata
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.,Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Sotaro Fujisawa
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Masayoshi Isezaki
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Naoya Maekawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Tomohiro Okagawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Takumi Sato
- Vaxxinova Japan K.K., 1-24-8 Hamamatsucho, Minato-ku, Tokyo 105-0013, Japan
| | - Eiji Oishi
- Vaxxinova Japan K.K., 1-24-8 Hamamatsucho, Minato-ku, Tokyo 105-0013, Japan
| | - Akira Taneno
- Vaxxinova Japan K.K., 1-24-8 Hamamatsucho, Minato-ku, Tokyo 105-0013, Japan
| | - Satoru Konnai
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.,Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Kazuhiko Ohashi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.,Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
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24
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Fumigant activity of essential oils from Cinnamomum and Citrus spp. and pure compounds against Dermanyssus gallinae (De Geer) (Acari: Dermanyssidae) and toxicity toward the nontarget organism Beauveria bassiana (Vuill.). Vet Parasitol 2021; 290:109341. [PMID: 33472157 DOI: 10.1016/j.vetpar.2021.109341] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 12/23/2020] [Accepted: 12/27/2020] [Indexed: 11/22/2022]
Abstract
Dermanyssus gallinae(De Geer) (Acari: Dermanyssidae) is the main ectoparasite associated with laying poultry. This mite is commonly controlled by the application of synthetic chemical insecticides, wich lead to the selection of resistant populations and formation of residues in eggs. Thus, new molecules must be developed to control D. gallinae. This work evaluated the toxicity of essential oils (EOs) from Cinnamomum cassia, Cinnamomum camphora, Cinnamomum camphora var. linalooliferum, Citrus aurantium, Citrus aurantium var. bergamia, Citrus aurantifolia and Citrus reticulata var. tangerine against D. gallinae. Additionally, the chemical profiles of the most bioactive EOs were analyzed by gas chromatography coupled with mass spectrometry (GC-MS) and the major compounds were subjected to new tests using D. gallinae. The most toxic EOs against D. gallinae were evaluated for the nontarget entomopathogenic fungus Beauveria bassiana (Unioeste 88). The EOs from C. cassia (LC50 = 25.43 ± 1.0423 μg/cm3) and C. camphora var. linalooliferum (LC50 = 39.84 ± 1.9635 μg/cm3) were the most active in the fumigant bioassay and caused mortality rates of 96 and 61%, respectively. The GC-MS analysis revealed that the major constituents of EOs from C. cassia and C. camphora var. linalooliferum were trans-cinnamaldehyde and linalool, respectively. The pure compounds, trans-cinnamaldehyde (LC50 = 68.89 ± 3.1391 μg/cm3) and linalool (LC50 = 51.45 ± 1.1967 μg/cm3), were tested on D. gallinae and showed lower toxicity than the EOs. Thus, the compounds were not the only active substances produced by C. cassia and C. camphora var. linalooliferum; moreover synergism may have occurred between the substances. The EOs from C. cassia and C. camphora var. linalooliferum were also toxic to B. bassiana (Unioeste 88). Thus, EOs from C. cassia and C. camphora var. linalooliferum are promising candidates for use in D. gallinae control, but cannot be used in conjunction with the fungus B. bassiana.
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25
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Wang C, Xu X, Huang Y, Yu H, Li H, Wan Q, Li H, Wang L, Sun Y, Pan B. Susceptibility of Dermanyssus gallinae from China to acaricides and functional analysis of glutathione S-transferases associated with beta-cypermethrin resistance. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 171:104724. [PMID: 33357546 DOI: 10.1016/j.pestbp.2020.104724] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 09/23/2020] [Accepted: 10/10/2020] [Indexed: 06/12/2023]
Abstract
Dermanyssus gallinae poses a significant threat to poultry production, and the resistance to pyrethroids has been identified worldwide. Periodic monitoring of acaricide resistance in D. gallinae is very important for its control, and molecular mechanism associated with beta-cypermethrin resistance in D. gallinae is not fully clear. Results showed, four field isolates of CBP-1, CBP-2, CBP-5 and CBY-1 from China remained either susceptible or with decreased susceptibility (resistance ratio < 5.0) to phoxim, amitraz, propoxur and carbaryl. Four field isolates of CBP-1, CBP-3, CBY-2 and CBH-1 had developed high or extremely high level of resistance (resistance ratio ≥ 40.0) to beta-cypermethrin or permethrin. Detoxification enzyme activity of GSTs was significantly higher in beta-cypermethrin resistant (RS) than susceptible strain (SS), indicating that GSTs are probably involved in beta-cypermethrin resistance in D. gallinae. The recombinant GSTs (rGST-1, 2, 3) showed a pronounced activity toward the conjugates of 1-chloro-2, 4 dinitrobenzene (CDNB) and glutathione (GSH), with rGST-1 presenting the highest enzymatic activity. Constitutive over-expression of Deg-GST-2 was detected in RS strain, and GSTs genes were all inducible with the treatment of beta-cypermethrin in SS and RS strains. More importantly, knocking down Deg-GST-2 gene expression by RNAi increased the susceptibility of RS strain to beta-cypermethrin. HPLC analysis indicated that rGST-1 protein could metabolize phoxim directly, but rGSTs could not directly metabolize beta-cypermethrin. Our results indicated that some field isolates of D. gallinae from China had developed high level of resistance to pyrethroids, and elevated GSTs activity as well as increased GSTs expression levels were involved in beta-cypermethrin resistance, but the three evaluated GSTs did not play a direct role in the metabolism of beta-cypermethrin.
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Affiliation(s)
- Chuanwen Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaolin Xu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yu Huang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - He Yu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hao Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Qiang Wan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Huan Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Lianyu Wang
- Animal Disease Prevention and Control Centre of Pinggu District, Beijing 101200, China
| | - Yanyan Sun
- Animal Disease Prevention and Control Centre of Pinggu District, Beijing 101200, China
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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26
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Sparagano OAE, George DR, Finn RD, Giangaspero A, Bartley K, Ho J. Dermanyssus gallinae and chicken egg production: impact, management, and a predicted compatibility matrix for integrated approaches. EXPERIMENTAL & APPLIED ACAROLOGY 2020; 82:441-453. [PMID: 33205360 DOI: 10.1007/s10493-020-00558-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
The poultry red mite, Dermanyssus gallinae, is a worldwide threat to egg production and animal and human welfare. This mite is also a potential vector for several significant diseases. EU regulation that forbids the use of conventional cages for egg-laying hens may favour the growth of D. gallinae, a species known to thrive in more complex housing systems. Current control measures emphasize the use of chemical acaricides, which may have limited efficacy on D. gallinae considering its temporary blood-feeding behaviour. In integrated pest management (IPM), two or more compatible measures targeting physical, environmental, and/or biological aspects could be judiciously combined to enhance the effectiveness against D. gallinae infestation. To inform current and future IPM for D. gallinae, a compatibility matrix is proposed to guide the selection of control measures for field application.
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Affiliation(s)
- O A E Sparagano
- Department of Public Health and Infectious Diseases, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China.
| | - D R George
- School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - R D Finn
- Department of Biochemistry & Genetics, St George's International School of Medicine, Faculty of Health & Life Sciences, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - A Giangaspero
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, 71121, Italy
| | - K Bartley
- Moredun Research Institute, Penicuik, EH26 0PZ, UK
| | - J Ho
- Department of Public Health and Infectious Diseases, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
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27
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Decru E, Mul M, Nisbet AJ, Vargas Navarro AH, Chiron G, Walton J, Norton T, Roy L, Sleeckx N. Possibilities for IPM Strategies in European Laying Hen Farms for Improved Control of the Poultry Red Mite ( Dermanyssus gallinae): Details and State of Affairs. Front Vet Sci 2020; 7:565866. [PMID: 33282928 PMCID: PMC7705068 DOI: 10.3389/fvets.2020.565866] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/01/2020] [Indexed: 12/02/2022] Open
Abstract
The Poultry Red Mite (PRM), Dermanyssus gallinae, is a major threat to the poultry industry worldwide, causing serious problems to animal health and welfare, and huge economic losses. Controlling PRM infestations is very challenging. Conventionally, D. gallinae is treated with synthetic acaricides, but the particular lifestyle of the mite (most of the time spent off the host) makes the efficacy of acaracide sprays often unsatisfactory, as sprays reach only a small part of the population. Moreover, many acaricides have been unlicensed due to human consumer and safety regulations and mites have become resistant to them. A promising course of action is Integrated Pest Management (IPM), which is sustainable for animals, humans and the environment. It combines eight different steps, in which prevention of introduction and monitoring of the pest are key. Further, it focusses on non-chemical treatments, with chemicals only being used as a last resort. Whereas IPM is already widely applied in horticulture, its application is still in its infancy to control D. gallinae in layer houses. This review presents the currently-available possibilities for control of D. gallinae in layer houses for each of the eight IPM steps, including monitoring techniques, established and emerging non-chemical treatments, and the strategic use of chemicals. As such, it provides a needed baseline for future development of specific IPM strategies, which will allow efficient and sustainable control of D. gallinae in poultry farms.
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Affiliation(s)
- Eva Decru
- Experimental Poultry Centre, Geel, Belgium
| | - Monique Mul
- Wageningen Livestock Research, Division Animal Health and Welfare, Wageningen, Netherlands.,MoniqueMul IPM, Wervershoof, Netherlands
| | - Alasdair J Nisbet
- Vaccines and Diagnostics Department Moredun Research Institute, Midlothian, United Kingdom
| | | | | | | | - Tomas Norton
- Group of M3-BIORES, Division of Animal and Human Health Engineering (A2H), Department of BioSystems, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Lise Roy
- CEFE, CNRS, University of Montpellier, University of Paul Valéry Montpellier, EPHE, IRD, Montpellier, France
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28
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Mul MF, van Vugt SMA, Goselink YSM, van den Brand H. Effects of heating laying hen houses between consecutive laying cycles on the survival of the poultry red mite Dermanyssus gallinae. Vet Parasitol 2020; 288:109307. [PMID: 33220641 DOI: 10.1016/j.vetpar.2020.109307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 11/25/2022]
Abstract
The poultry red mite (PRM) Dermanyssus gallinae, the most common ectoparasite affecting laying hens worldwide, is difficult to control. During the period between consecutive laying cycles, when no hens are present in the layer house, the PRM population can be reduced drastically. Heating a layer house to temperatures above 45 °C for several days in order to kill PRM has been applied in Europe. The effect of such a heat treatment on the survival of PRM adults, nymphs and eggs, however, is largely unknown. To determine that effect, an experiment was executed in four layer houses. Nylon bags with ten PRM adults, nymphs or eggs were placed at five different locations, being a) inside the nest boxes, b) between two wooden boards, to simulate refugia, c) near an air inlet, d) on the floor, under approximately 1 cm of manure and e) on the floor without manure. Mite survival was measured in 6 replicates of each of these locations in each of four layer houses. After heating up the layer house, in this case with a wood pellet burning heater, the temperature of the layer house was maintained at ≥ 45 °C for at least 48 h. Thereafter, the bags were collected and the mites were assessed as being dead or alive. The eggs were assessed for hatchability. Despite a maximum temperature of only 44 °C being reached at one location, near an air inlet, all stages of PRM were dead after the heat treatment. It can be concluded that a heat treatment of layer houses between consecutive laying cycles appears to be an effective method to control PRM.
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Affiliation(s)
- Monique F Mul
- Wageningen Livestock Research, P.O. Box 338, 6700 AH, Wageningen, the Netherlands.
| | - Sonja M A van Vugt
- Wageningen University, Adaptation Physiology Group. P.O. Box 338, 6700 AH Wageningen, the Netherlands
| | - Yvo S M Goselink
- Wageningen University, Adaptation Physiology Group. P.O. Box 338, 6700 AH Wageningen, the Netherlands
| | - Henry van den Brand
- Wageningen University, Adaptation Physiology Group. P.O. Box 338, 6700 AH Wageningen, the Netherlands
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29
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Wang C, Xu X, Huang Y, Yu H, Li H, Wan Q, Pan B. Transcription profiling and characterization of Dermanyssus gallinae cytochrome P450 genes involved in beta-cypermethrin resistance. Vet Parasitol 2020; 283:109155. [PMID: 32534384 DOI: 10.1016/j.vetpar.2020.109155] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 01/29/2023]
Abstract
The poultry red mite, Dermanyssus gallinae, poses a significant threat to hen health and poultry husbandry. D. gallinae has typically been controlled using synthetic acaricides, like pyrethroids, but increased resistance to pyrethroids has been found in poultry red mite populations worldwide. Pyrethroids resistance in arthropods has been associated to cytochrome P450 monooxygenases (P450s), a main member of a group of detoxification enzymes. To explore the potential contribution of P450s to the resistance to pyrethroids in D. gallinae, we first identified and then characterized four P450s genes. Phylogenetic analysis revealed that the four P450s genes in D. gallinae belong to three different clades, with two in the CYP-6, one in the CYP-4 and one in the CYP-2. All four P450s genes were expressed in a similar pattern in D. gallinae at different stages of development, and showed high expression in the adult stage, indicating that they played a role in mite development. Simultaneously, constitutive over-expression of Deg-CYP-3, a clade associated with pesticide metabolism, was detected in a resistant strain (RS) compared with a susceptible strain (SS). When exposed to beta-cypermethrin, the four P450s gene transcripts in the RS strain increased in a time-dependent manner. In particular, Deg-CYP-3 expression increased 5-fold compared to gene expression in control group at 12 h, although the four P450s genes were not induced in the SS strain. Our results show the first insights into the molecular characteristics of P450s genes in D. gallinae. The elevated presence of P450s genes in the RS strain, indicated by their constitutive over-expression and their inducible expression, suggests that they confer resistance to beta-cypermethrin, and are involved in its detoxification.
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Affiliation(s)
- Chuanwen Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaolin Xu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yu Huang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - He Yu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hao Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Qiang Wan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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