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Qie X, Du Y, Aioub AAA, Dong K, Hu Z. Negative cross-resistance of a pyrethroid-resistant Drosophila mutant to Phryma leptostachya-derived haedoxan A. INSECT SCIENCE 2022; 29:817-826. [PMID: 34547832 DOI: 10.1111/1744-7917.12973] [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: 04/09/2021] [Revised: 08/29/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Voltage-gated sodium channels are the primary target of pyrethroid insecticides. Mutations in sodium channel confer knockdown resistance (kdr) to pyrethroids in various arthropod pests. Haedoxan A (HA) is the major insecticidal component from Phryma leptostachya. It has been shown that HA alters electrical responses at the Drosophila neuromuscular junction and modifies the gating properties of cockroach sodium channels expressed in Xenopus oocytes. However, whether sodium channel mutations that confer pyrethroid resistance also affect the action of HA is unknown. In this study, we conducted bioassays using HA and permethrin in two Drosophila melanogaster strains: w1118 , an insecticide-susceptible strain, and parats1 , a pyrethroid-resistant strain due to a I265N mutation in the sodium channel, and identified a new case of negative cross-resistance (NCR) between permethrin and HA. Both parats1 larvae and adults were more resistant to permethrin, as expected. However, both parats1 larvae and adults were more sensitive to HA compared to w1118 . We confirmed that the I265N mutation reduced the sensitivity to permethrin of a Drosophila sodium channel variant, DmNav 22, expressed in Xenopus oocytes. Interestingly, the I265N mutation also abolished the effect of HA on sodium channels. Further characterization showed that I265 on the sodium channels is critical for the action of both pyrethroids and HA on sodium channels, pointing to an overlapping mode of action between pyrethroids and HA on the sodium channel. Overall, our results suggest an I265N-independnt mechanism(s) in parats1 flies that is responsible for the NCR between permethrin and HA at the whole insect level.
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Affiliation(s)
- Xingtao Qie
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi, 712100, China
| | - Yuzhe Du
- Southern Insect Management Research Unit, Agriculture Research Service, United States Department of Agriculture, 141 Experiment Station Road, Stoneville, MS, 38776, USA
| | - Ahmed A A Aioub
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Ke Dong
- Department of Biology, Duke University, Durham, NC, 27708, USA
| | - Zhaonong Hu
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi, 712100, China
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David MD. The potential of pro-insecticides for resistance management. PEST MANAGEMENT SCIENCE 2021; 77:3631-3636. [PMID: 33729660 DOI: 10.1002/ps.6369] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Pro-insecticides have been a significant part of the insecticide market for decades. Bioactivation of such compounds is generally an enzyme-controlled process, in which the target insect metabolizes the pro-form into an active compound. This approach has several potential advantages, including improved bio-kinetic properties and safety profiles of the pro-insecticide relative to the active form. A less common advantage of pro-insecticides is increased activity on metabolically resistant strains. Specific cases in which a pro-insecticide demonstrates negative cross-resistance (NCR) on a metabolically resistant strain due to increased bioactivation of the pro-insecticide have been noted sporadically over the past 50+ years but have not been reviewed before. The purpose of this mini-review is to catalog the cases in which a pro-insecticide demonstrated improved activity on an insect strain resistant to a second insecticide via a metabolic mechanism. Cases are relatively rare, but where it does occur the mechanism of NCR is generally recognized as being due to the increased metabolic activity of the resistant strain. These observations can provide learnings with potential application for resistance management if the correct pro-insecticide is selected for a resistant strain which is better able to bioactivate it. A better understanding of the bioactivation of pro-insecticides by resistant insects could also aid in insecticide discovery, potentially leading to improved pro-insecticide design. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Michael D David
- BASF Global Insecticide Research, Research Triangle Park, NC, USA
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Wang Q, Rui C, Wang Q, Wang L, Li F, Nahiyoon SA, Yuan H, Cui L. Mechanisms of Increased Indoxacarb Toxicity in Methoxyfenozide-Resistant Cotton Bollworm Helicoverpa armigera (Lepidoptera: Noctuidae). TOXICS 2020; 8:toxics8030071. [PMID: 32957560 PMCID: PMC7560286 DOI: 10.3390/toxics8030071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/13/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022]
Abstract
Indoxacarb is an important insecticide for the selective control of Helicoverpa armigera. It can be bioactivated to the more effective N-decarbomethoxylated indoxacarb (DCJW) by esterases in pests. It was observed that both field and laboratory selected populations of H. armigera showed negative cross-resistance between indoxacarb and methoxyfenozide. The Handan population exhibited moderate resistance to indoxacarb, but was susceptible to methoxyfenozide; the Baoding and Yishui populations exhibited moderate resistance to methoxyfenozide, but they were susceptible to indoxacarb. Moreover, the toxicity of indoxacarb was enhanced 1.83-fold in the laboratory methoxyfenozide-resistant H. armigera, and susceptibility to methoxyfenozide was increased 2.81-fold in the laboratory indoxacarb-resistant H. armigera. In vivo, DCJW concentrations in the susceptible and methoxyfenozide-selected (laboratory methoxyfenozide-resistant) populations were 4.59- and 4.31-fold greater than in the indoxacarb-resistant Handan population 1 h after dosing. After 2 h, the highest concentrations of DCJW and indoxacarb appeared in the methoxyfenozide-selected population. Meanwhile, increased carboxyl esterase (CarE) and decreased glutathione S-transferase (GST) activities were observed in the methoxyfenozide-selected population. However, the indoxacarb-selected (laboratory indoxacarb-resistant) and Handan populations showed a higher disappearance of indoxacarb and DCJW, and the activity of cytochrome P450 mono-oxygenase in these populations were significantly increased. This study showed that the improved toxicity of indoxacarb, as observed in the methoxyfenozide-selected H. armigera, was correlated with increased CarE activity, decreased GST activity, and the in vivo accumulation of indoxacarb and DCJW. The significantly increased cytochrome P450 activity and higher disappearance of indoxacarb and DCJW in indoxacarb-resistant H. armigera resulted in the decreased toxicity of indoxacarb.
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Affiliation(s)
- Qinqin Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Changhui Rui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Qiyuan Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Li Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Fugen Li
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, Beijing 100125, China;
| | - Shahzad Ali Nahiyoon
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Huizhu Yuan
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
| | - Li Cui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, China; (Q.W.); (C.R.); (Q.W.); (L.W.); (S.A.N.); (H.Y.)
- Correspondence: ; Tel.: +86-10-6281-5944
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White MT, Lwetoijera D, Marshall J, Caron-Lormier G, Bohan DA, Denholm I, Devine GJ. Negative cross resistance mediated by co-treated bed nets: a potential means of restoring pyrethroid-susceptibility to malaria vectors. PLoS One 2014; 9:e95640. [PMID: 24788951 PMCID: PMC4006834 DOI: 10.1371/journal.pone.0095640] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 03/28/2014] [Indexed: 11/18/2022] Open
Abstract
Insecticide-treated nets and indoor residual spray programs for malaria control are entirely dependent on pyrethroid insecticides. The ubiquitous exposure of Anopheles mosquitoes to this chemistry has selected for resistance in a number of populations. This threatens the sustainability of our most effective interventions but no operationally practicable way of resolving the problem currently exists. One innovative solution involves the co-application of a powerful chemosterilant (pyriproxyfen or PPF) to bed nets that are usually treated only with pyrethroids. Resistant mosquitoes that are unaffected by the pyrethroid component of a PPF/pyrethroid co-treatment remain vulnerable to PPF. There is a differential impact of PPF on pyrethroid-resistant and susceptible mosquitoes that is modulated by the mosquito's behavioural response at co-treated surfaces. This imposes a specific fitness cost on pyrethroid-resistant phenotypes and can reverse selection. The concept is demonstrated using a mathematical model.
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Affiliation(s)
- Michael T. White
- MRC Centre for Outbreak Analysis and Modelling, Imperial College, London, United Kingdom
| | | | - John Marshall
- MRC Centre for Outbreak Analysis and Modelling, Imperial College, London, United Kingdom
| | | | - David A. Bohan
- INRA, UMR 1347 Agroécologie, Pôle ECOLDUR, Dijon, France
| | - Ian Denholm
- University of Hertfordshire, Hatfield, Hertfordshire, United Kingdom
| | - Gregor J. Devine
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
- * E-mail:
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Markussen MDK, Kristensen M. Spinosad resistance in female Musca domestica L. from a field-derived population. PEST MANAGEMENT SCIENCE 2012; 68:75-82. [PMID: 21681919 DOI: 10.1002/ps.2223] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 03/29/2011] [Accepted: 03/03/2011] [Indexed: 05/16/2023]
Abstract
BACKGROUND Bait-formulated spinosad is currently being introduced for housefly (Musca domestica L.) control around the world. Spinosad resistance was evaluated in a multiresistant field population and strains derived from this by selection with insecticides. Constitutive and spinosad-induced expression levels of three cytochrome P450 genes, CYP6A1, CYP6D1 and CYP6D3, previously reported to be involved in insecticide resistance, were examined. RESULTS In 2004 a baseline for spinosad toxicity of Danish houseflies where all field populations were considered to be susceptible was established. In the present study, females of a multiresistant field population 791a were, however, 27-fold spinosad resistant at LC(50), whereas 791a male houseflies were susceptible. Strain 791a was selected with spinosad, thiamethoxam, fipronil and imidacloprid, resulting in four strains with individual characteristics. Selection of 791a with spinosad did not alter spinosad resistance in either males or females, but counterselected against resistance to the insecticides thiamethoxam and imidacloprid targeting nicotinic acetylcholine receptors. A synergist study with piperonyl butoxide, as well as gene expression studies of CYP6A1, CYP6D1 and CYP6D3, indicated a partial involvement of cytochrome P450 genes in spinosad resistance. CONCLUSION This study reports female-linked spinosad resistance in Danish houseflies. Negative cross-resistance was observed between spinosad and neonicotinoids in one multiresistant housefly strain. Spinosad resistance involved alterations of cytochrome P450 gene expression.
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Efficacy of a topically applied spot-on formulation of a novel insecticide, metaflumizone, applied to cats against a flea strain (KS1) with documented reduced susceptibility to various insecticides. Vet Parasitol 2007; 151:74-9. [PMID: 18022186 DOI: 10.1016/j.vetpar.2007.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 09/17/2007] [Accepted: 10/04/2007] [Indexed: 11/22/2022]
Abstract
A spot-on metaflumizone formulation was evaluated in adult domestic short hair cats to determine its adultidical efficacy against a flea strain that has reduced susceptibility to a number of insecticides. Eight cats served as non-treated controls, eight cats were treated with a metaflumizone formulation at 0.2 ml/kg (40 mg metaflumizone/kg) and eight cats were treated with fipronil 10% w/v-(s)-methoprene 12%w/v at 0.075 ml/kg (7.5-7.7 mg fipronil/kg:9.0-9.2 mg (s)-methoprene/kg). On days -1, 7, 14, 21, 28, 35, and 42 each cat was infested with approximately 100 unfed KS1 cat fleas, Ctenocephalides felis. At approximately 48 h after treatment or infestation, each cat was combed to remove and count live fleas. Treatment with metaflumizone provided > or = 99.3% efficacy for 3 weeks post-treatment and then 97.4, 91.4 and 86.2% efficacy at 4, 5 and 6 weeks post-treatment, respectively. Fipronil-(s)-methoprene provided 99.6% efficacy at 1 week post-treatment and then 97.6, 96.4, 71.3, 22.0 and 13.1% efficacy at weeks 2, 3, 4, 5 and 6, respectively. The reductions in flea numbers were significantly greater for the metaflumizone treatment than for fipronil-(s)-methoprene from 3 to 6 weeks after treatment.
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Singh T, Sharma S, Srivastava VK, Kumar A. Synthesis and Biological Evaluation of Some Pyrazolinylpyridines and Pyrazolylpyridines. Arch Pharm (Weinheim) 2006; 339:24-31. [PMID: 16411173 DOI: 10.1002/ardp.200500117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Various new 2-(1'-acetyl-5'-substituted-aryl-2'-pyrazolin-3'-yl)aminopyridines (3a-3e) and 2-(1'-phenyl 5'-substituted aryl-2'-pyrazol-3'-yl)aminopyridines (4a-4e) have been derived from 2-(substituted benzylidenylacetyl)aminopyridines (2a-2e). The structure of these compounds have been elucidated by elemental and spectral (IR, 1H-NMR, mass) analysis. Furthermore, above said compounds were evaluated for their insecticidal, antifungal, and antibacterial activities. Compound 4b 2-[1'-phenyl-5'-(o-chlorophenyl)-2'-pyrazol-3'-yl]aminopyridine, when compared for insecticidal and antifungal activities with parathion and fluconazole, respectively, was found to be the most potent one in this series. It also possessed remarkable antibacterial properties.
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Affiliation(s)
- Tripti Singh
- Medicinal Chemistry Division, Department of Pharmacology, LaLa Lajpat Rai Memorial Medical College, Meerut, India
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