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Xue Q, Li J, Vereecken S, Li Q, Zhi Z, Dubruel P, Taning CNT, De Schutter K. Functionally Modified Graphene Oxide as an Alternative Nanovehicle for Enhanced dsRNA Delivery in Improving RNAi-Based Insect Pest Control. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39365919 DOI: 10.1021/acs.jafc.4c05215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2024]
Abstract
RNA interference (RNAi) has shown substantial promise as a sustainable pest management solution. However, the efficacy of RNAi-based insecticides heavily relies on advanced nanocarrier-mediated delivery systems. In this study, we modified raw graphene oxide into positively charged nanocarriers (GONs) tailored to bind with double-stranded RNA (dsRNA). The resulting GONs@dsRNA complexes demonstrated a small particle size (106 nm) and maintained stability under various conditions, including insect gut extracts, extreme pH, and extreme temperature. Furthermore, GONs efficiently transported dsRNA molecules into Drosophila S2 cells and Lepidoptera Sf9 cells, leading to an enhanced target transcript knockdown. Targeting the vacuolar ATPase gene, vha26, induced significant mortality and target transcript knockdown in D. suzukii adults but not in S. exigua. Finally, GONs@dsRNA complexes exhibited negligible cytotoxicity at both the cellular and organismal levels. This study demonstrates the potential of GONs as a biosafe nanovehicle for efficient dsRNA delivery into insects, presenting an alternative strategy for advancing RNAi applications in fundamental studies and pest control.
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Affiliation(s)
- Qi Xue
- Molecular Entomology Laboratory, Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Jiangjie Li
- Molecular Entomology Laboratory, Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Sven Vereecken
- Polymer Chemistry and Biomaterials group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent 9000, Belgium
| | - Qiqiong Li
- State Key Laboratory of Food Science and Resources, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, China
| | - Zijian Zhi
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent 9000, Belgium
| | - Clauvis Nji Tizi Taning
- Molecular Entomology Laboratory, Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Kristof De Schutter
- Molecular Entomology Laboratory, Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
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2
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Qu C, Li Y, Zhan Q, Wang J, Luo C, Guedes RNC, Wang R. Tetraniliprole risk assessment: Unveiling a hidden threat for managing a generalist herbivore. ENVIRONMENTAL RESEARCH 2024; 256:119273. [PMID: 38821465 DOI: 10.1016/j.envres.2024.119273] [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: 04/26/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Insecticide resistance poses a significant challenge in managing generalist herbivores such as the tobacco cutworm (TCW), Spodoptera litura. This study investigates the potential risks associated with using the novel diamide insecticide tetraniliprole to control TCW. A tetraniliprole-resistant strain was developed through twelve generations of laboratory selection, indicating an intermediate risk of resistance development. Field monitoring in China revealed a significant incidence of resistance, particularly in the Nanchang (NC) population (>100-fold). Tetraniliprole showed moderate to high cross-resistance to multiple insecticides and was autosomally inherited with incomplete dominance, controlled by multiple genes, some of which belong to the cytochrome P450 family associated with enhanced detoxification. Life table studies indicated transgenerational hormesis, stimulating TCW female fecundity and increasing population net reproduction rates (R0). These findings suggest a potential for pest resurgence under tetraniliprole use. The integrated risk assessment provides a basis for the sustainable management of TCW using tetraniliprole.
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Affiliation(s)
- Cheng Qu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China; Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China, Beijing, 100097, China
| | - Yunyi Li
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Qianyuan Zhan
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Jinda Wang
- National Engineering Research Center of Sugarcane, Fujian Agricultural and Forestry University, Fuzhou, 350002, China.
| | - Chen Luo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Raul Narciso C Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Ran Wang
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China; Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China, Beijing, 100097, China.
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3
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Wang Y, Zhan E, Lu H, Chen Y, Duan F, Wang Y, Tang T, Zhao C. Control efficacy and joint toxicity of broflanilide mixed with commercial insecticides to an underground pest, the black cutworm in highland barley. PEST MANAGEMENT SCIENCE 2024. [PMID: 39096093 DOI: 10.1002/ps.8342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 06/17/2024] [Accepted: 07/17/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND The highland barley, Hordeum vulgare L., is a staple food crop with superior nutritional functions in Xizang, China. It is often damaged by the black cutworm, Agrotis ipsilon (Hufnagel), which is an underground pest and difficult to effectively manage. To introduce a novel insecticide with unique mode of action, broflanilide (BFL) and its binary mixtures with chlorantraniliprole (CAP), fluxametamide, β-cypermethrin or imidacloprid were screened out as seed treatment to control black cutworm in highland barley in the present study. RESULTS In the laboratory bioassays, BFL had outstanding insecticidal activity to black cutworm with a median lethal dose (LD50) of 0.07 mg kg-1. The mixture of BFL × CAP at the concentration ratio of 7:40 exhibited the highest synergistic effect with a co-toxicity coefficient of 280.48. In the greenhouse pot experiments, BFL and BFL × CAP seed treatments at 8 g a.i. kg-1 seed could effectively control black cutworm, with a low percentage of injured seedlings <20% and high control efficacies of 93.33-100% during a period of 3-12 days after seed emergence. Moreover, BFL and BFL × CAP seed treatments could promote the seed germination and seedling growth of highland barley at the tested temperatures of 15, 20 and 25 °C. CONCLUSION Our results indicated that BFL and BFL × CAP were effective and promising insecticides as seed treatment to control black cutworm in highland barley. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yingnan Wang
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
| | - Enling Zhan
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
| | - Hui Lu
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
| | - Yiqu Chen
- College of Plant Science, Tibet Agricultural and Animal Husbandry University, Nyingchi, PR China
| | - Fenglei Duan
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
| | - Ying Wang
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
| | - Tao Tang
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, PR China
| | - Chunqing Zhao
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, PR China
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Qu C, Yao J, Huang J, Che W, Fang Y, Luo C, Wang R. Tetraniliprole resistance in field-collected populations of Tuta absoluta (Lepidoptera: Gelechiidae) from China: Baseline susceptibility, cross-resistance, inheritance, and biochemical mechanism. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 203:106019. [PMID: 39084779 DOI: 10.1016/j.pestbp.2024.106019] [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: 05/21/2024] [Revised: 06/30/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024]
Abstract
Tuta absoluta is one of the most destructive and invasive insect pests throughout the world. It feeds on numerous solanaceous plant species and has developed resistance to most types of popular insecticides. Tetraniliprole is a novel diamide chemical agent that acts as a modulator of the ryanodine receptor. To establish T. absoluta susceptibility to tetraniliprole and to understand potential mechanisms of resistance, we monitored 18 field populations of T. absoluta collected from northern China. One field-evolved resistant population, Huailai (HL), showed moderate resistance to tetraniliprole (36.2-fold) in comparison with susceptible strain YN-S. Assays of cross-resistance, synergism, metabolic enzyme activity, and inheritance of resistance were performed with YN-S strain and HL population. The latter displayed 12.2- and 6.7-fold cross-resistance to chlorantraniliprole and flubendiamide, respectively, but little cross-resistance to broflanilide (1.6-fold), spinosad (2.1-fold), metaflumizone (1.5-fold), or indoxacarb (2.8-fold). Genetic analyses revealed that tetraniliprole resistance in HL population was autosomal, incompletely dominant, and polygenic. Piperonyl butoxide was found to significantly increase tetraniliprole toxicity, and enzymatic activities of P450 monooxygenase and glutathione S-transferase were significantly higher in HL than YN-S population. These results enhance our knowledge of the inheritance and mechanism of tetraniliprole resistance, enabling future optimization of resistance management strategies.
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Affiliation(s)
- Cheng Qu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Jiaqi Yao
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; Department of Plant Protection, Heilongjiang University, Harbin 150080, China
| | - Jianlei Huang
- College of Agriculture and Forestry Technology, Hebei North University, Zhangjiakou 075000, China
| | - Wunan Che
- Department of Pesticide Sciences, Shenyang Agricultural University, Shenyang 110866, China
| | - Yong Fang
- Yuelushan Laboratory, Changsha 410128, China; Agriculture Biotechnology Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Chen Luo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Ran Wang
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
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Zhang X, Zhang R, Yu M, Liu R, Liu N, Teng H, Pei Y, Hu Z, Zuo Y. Identification and detection of the V1848I indoxacarb resistance mutation in the beet armyworm, Spodoptera exigua. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 203:105991. [PMID: 39084768 DOI: 10.1016/j.pestbp.2024.105991] [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: 05/14/2024] [Revised: 06/12/2024] [Accepted: 06/17/2024] [Indexed: 08/02/2024]
Abstract
Indoxacarb is a pivotal insecticide used worldwide to manage Spodoptera exigua, a devastating agricultural pest. This active compound plays a crucial role in resistance management strategies due to its distinctive mode of action. A field population of S. exigua (SH23) from Shanghai, China, exhibited significantly reduced susceptibility to indoxacarb, with a resistance ratio of 113.84-fold in biological assays. Following two rounds of laboratory screening with indoxacarb, the resistance of the new strain (SH23-S2) escalated steeply to 876.15-fold. Genetic analyses of both the SH23 and SH23-S2 strains demonstrated autosomal inheritance and incompletely dominant resistance patterns. Synergist assays indicated a minor role of detoxification enzymes (glutathione s-transferases and cytochrome P450) of SH23-S2 strain in this resistance, implicating target-site resistance as the primary mechanism. To explore the impact of target-site resistance, segment 1-6 of domain IV (IVS1-6) of the sodium channel in S. exigua was cloned, and the sequences from susceptible and indoxacarb-resistant S. exigua were compared. The V1848I mutation, linked to indoxacarb resistance in Plutella xylostella, Tuta absoluta and Liriomyza trifolii, was identified and strongly associated with the indoxacarb-resistant phenotype in the S. exigua SH23-S2 strain, whereas the F1845Y mutation was not detected. Furthermore, a molecular test for the V1848I mutation in field populations was created using an allele-specific PCR (AS-PCR). The discovery of indoxacarb resistance mutation and the creation of diagnostic tool will enable the early detection of indoxacarb resistance, which will facilitate the implementation of targeted resistance management strategies, ultimately delaying the proliferation of resistance.
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Affiliation(s)
- Xianxia Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Ruiming Zhang
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Mengqi Yu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Rui Liu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Naijing Liu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Haiyuan Teng
- Institute of Eco-Environmental and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yakun Pei
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Zhaonong Hu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection. Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China.
| | - Yayun Zuo
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling 712100, Shaanxi, China.
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6
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Sun H, Wang S, Liu C, Hu WK, Liu JW, Zheng LJ, Gao MY, Guo FR, Qiao ST, Liu JL, Sun B, Gao CF, Wu SF. Risk assessment, fitness cost, cross-resistance, and mechanism of tetraniliprole resistance in the rice stem borer, Chilo suppressalis. INSECT SCIENCE 2024; 31:835-846. [PMID: 37846895 DOI: 10.1111/1744-7917.13282] [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: 07/13/2023] [Revised: 08/27/2023] [Accepted: 09/15/2023] [Indexed: 10/18/2023]
Abstract
The rice stem borer (RSB), Chilo suppressalis, a notorious rice pest in China, has evolved a high resistance level to commonly used insecticides. Tetraniliprole, a new anthranilic diamide insecticide, effectively controls multiple pests, including RSB. However, the potential resistance risk of RSB to tetraniliprole is still unknown. In this study, the tetraniliprole-selection (Tet-R) strain was obtained through 10 continuous generations of selection with tetraniliprole 30% lethal concentration (LC30). The realized heritability (h2) of the Tet-R strain was 0.387, indicating that resistance of RSB to tetraniliprole developed rapidly under the continuous selection of tetraniliprole. The Tet-R strain had a high fitness cost (relative fitness = 0.53). We established the susceptibility baseline of RSB to tetraniliprole (lethal concentration at LC50 = 0.727 mg/L) and investigated the resistance level of 6 field populations to tetraniliprole. All tested strains that had resistance to chlorantraniliprole exhibited moderate- to high-level resistance to tetraniliprole (resistance ratio = 27.7-806.8). Detection of ryanodine receptor (RyR) mutations showed that the Y4667C, Y4667D, I4758M, and Y4891F mutations were present in tested RSB field populations. RyR mutations were responsible for the cross-resistance between tetraniliprole and chlorantraniliprole. Further, the clustered regularly interspaced palindromic repeats (CRISPR) / CRISPR-associated protein 9-mediated genome-modified flies were used to study the contribution of RyR mutations to tetraniliprole resistance. The order of contribution of a single RyR mutation to tetraniliprole resistance was Y4667D > G4915E > Y4667C ≈ I4758M > Y4891F. In addition, the I4758M and Y4667C double mutations conferred higher tetraniliprole resistance than single Y4667C mutations. These results can guide resistance management practices for diamides in RSB and other arthropods.
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Affiliation(s)
- Hao Sun
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Shuai Wang
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Chong Liu
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Wen-Kai Hu
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Jin-Wei Liu
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Ling-Jun Zheng
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Meng-Yue Gao
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Fang-Rui Guo
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Song-Tao Qiao
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Jun-Li Liu
- Bayer Cropscience (China) Co., Ltd., Hangzhou, China
| | - Bo Sun
- Bayer Cropscience (China) Co., Ltd., Hangzhou, China
| | - Cong-Fen Gao
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Shun-Fan Wu
- College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
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Li S, Xu Y, Shao X, Zhang J, Li B, Wu X, Xu Y, Li X, Pang S. Residue and dietary intake risk assessment of lufenuron and chlorfenapyr and its corresponding metabolite in cabbage under field conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38288-38297. [PMID: 38797757 DOI: 10.1007/s11356-024-33725-9] [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: 05/03/2023] [Accepted: 08/21/2023] [Indexed: 05/29/2024]
Abstract
A simple, low-cost, and highly sensitive method using a modified QuECHERS procedure based on a liquid chromatography-tandem mass spectrometer (LC-MS/MS) was established to simultaneously quantify lufenuron and chlorfenapyr and the corresponding metabolite tralopyril in cabbage for the first time. On the basis of this method, terminal residue and dietary risk of lufenuron and chlorfenapyr in cabbage were investigated. The recoveries of lufenuron, chlorfenapyr, and tralopyril ranged from 88 to 110%, with relative standard deviation of less than 12.4%. The field trial results showed that at the pre-harvest interval (PHI) of 21 days, the terminal residues of lufenuron, chlorfenapyr, and tralopyril in the supervised trials were not higher than 0.02 mg/kg, and the highest detected residue levels of lufenuron, chlorfenapyr, and tralopyril were 0.047, 0.055, and <0.02 mg·kg-1 at 14-day pre-harvest respectively, which were lower than the maximum residue limits (MRLs) for cabbage established in China. For the dietary risk assessment, the national estimated daily intakes (NEDIs) as proportion of acceptable daily intakes (ADIs) were 80.4% and 29.9% for chlorfenapyr and lufenuron respectively indicating an acceptable dietary risk to Chinese population.
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Affiliation(s)
- Shuang Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Yufang Xu
- College of Grassland Science, Qingdao Agricultural University, Qingdao, 266109, China
| | - Xinxin Shao
- Plant Quarantine Station of Henan province, Zhengzhou, 450002, China
| | - Jian Zhang
- Plant Quarantine Station of Henan province, Zhengzhou, 450002, China
| | - Bo Li
- Plant Quarantine Station of Henan province, Zhengzhou, 450002, China
| | - Xuemin Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Yong Xu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Xuefeng Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Sen Pang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China.
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Ren J, Ji X, Zhang J, Yu Z, Wang X, Xiong L, Yang N, Tang L, Li Z, Fan Z. Discovery of Trisubstituted N-Phenylpyrazole Containing Diamides with Improved Insecticidal Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8072-8080. [PMID: 38547359 DOI: 10.1021/acs.jafc.3c08759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
To increase the structural diversity of insecticides and meet the needs of effective integrated insect management, the structure of chlorantraniliprole was modified based on a previously established three-dimensional quantitative structure-activity relationship (3D-QSAR) model. The pyridinyl moiety in the structure of chlorantraniliprole was replaced with a 4-fluorophenyl group. Further modifications of this 4-fluorophenyl group by introducing a halogen atom at position 2 and an electron-withdrawing group (e.g., iodine, cyano, and trifluoromethyl) at position 5 led to 34 compounds with good insecticidal efficacy against Mythimna separata, Plutella xylostella, and Spodoptera frugiperda. Among them, compound IV f against M. separata showed potency comparable to that of chlorantraniliprole. IV p against P. xylostella displayed a 4.5 times higher potency than chlorantraniliprole. In addition, IV d and chlorantraniliprole exhibited comparable potencies against S. frugiperda. Transcriptome analysis showed that the molecular target of compound IV f is the ryanodine receptor. Molecular docking was further performed to verify the mode of action and insecticidal activity against resistant P. xylostella.
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Affiliation(s)
- Jinzhou Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xia Ji
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Jin Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xinyuan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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Wang A, Zhang Y, Liu S, Xue C, Zhao Y, Zhao M, Yang Y, Zhang J. Molecular mechanisms of cytochrome P450-mediated detoxification of tetraniliprole, spinetoram, and emamectin benzoate in the fall armyworm, Spodoptera frugiperda (J.E. Smith). BULLETIN OF ENTOMOLOGICAL RESEARCH 2024:1-13. [PMID: 38563228 DOI: 10.1017/s000748532300038x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) is a highly damaging invasive omnivorous pest that has developed varying degrees of resistance to commonly used insecticides. To investigate the molecular mechanisms of tolerance to tetraniliprole, spinetoram, and emamectin benzoate, the enzyme activity, synergistic effect, and RNA interference were implemented in S. frugiperda. The functions of cytochrome P450 monooxygenase (P450) in the tolerance to tetraniliprole, spinetoram, and emamectin benzoate in S. frugiperda was determined by analysing changes in detoxification metabolic enzyme activity and the effects of enzyme inhibitors on susceptibility to the three insecticides. 102 P450 genes were screened via transcriptome and genome, of which 67 P450 genes were differentially expressed in response to tetraniliprole, spinetoram, and emamectin benzoate and validated by quantitative real-time PCR. The expression patterns of CYP9A75, CYP340AA4, CYP340AX8v2, CYP340L16, CYP341B15v2, and CYP341B17v2 were analysed in different tissues and at different developmental stages in S. frugiperda. Silencing CYP340L16 significantly increased the susceptibility of S. frugiperda to tetraniliprole, spinetoram, and emamectin benzoate. Furthermore, knockdown of CYP340AX8v2, CYP9A75, and CYP341B17v2 significantly increased the sensitivity of S. frugiperda to tetraniliprole. Knockdown of CYP340AX8v2 and CYP340AA4 significantly increased mortality of S. frugiperda to spinetoram. Knockdown of CYP9A75 and CYP341B15v2 significantly increased the susceptibility of S. frugiperda to emamectin benzoate. These results may help to elucidate the mechanisms of tolerance to tetraniliprole, spinetoram and emamectin benzoate in S. frugiperda.
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Affiliation(s)
- Aiyu Wang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Yellow River Delta Modern Agriculture Research Institute, Shandong Academy of Agricultural Sciences, Dongying, China
| | - Yun Zhang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Yellow River Delta Modern Agriculture Research Institute, Shandong Academy of Agricultural Sciences, Dongying, China
| | - Shaofang Liu
- Key Lab of Bioprocess Engineering of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Chao Xue
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yongxin Zhao
- Shandong Province Yuncheng County Agricultural and Rural Bureau, Yuncheng, China
| | - Ming Zhao
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Yellow River Delta Modern Agriculture Research Institute, Shandong Academy of Agricultural Sciences, Dongying, China
| | - Yuanxue Yang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Yellow River Delta Modern Agriculture Research Institute, Shandong Academy of Agricultural Sciences, Dongying, China
| | - Jianhua Zhang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Yellow River Delta Modern Agriculture Research Institute, Shandong Academy of Agricultural Sciences, Dongying, China
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10
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Yang HL, Yu JM, Cao F, Li WY, Li B, Lei X, Li SG, Liu S, Li MY. Unclassified glutathione-S-transferase AiGSTu1 confers chlorantraniliprole tolerance in Agrotis ipsilon. PEST MANAGEMENT SCIENCE 2024; 80:1107-1117. [PMID: 37862262 DOI: 10.1002/ps.7841] [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: 08/04/2023] [Revised: 10/09/2023] [Accepted: 10/20/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Chlorantraniliprole (CAP) is a diamide insecticide with high efficacy against many pest insects, including the black cutworm, Agrotis ipsilon. Agrotis ipsilon is a serious pest causing significant yield losses in crops. Glutathione-S-transferases (GSTs) belong to a family of metabolic enzymes that can detoxify a wide range of pesticides. However, little is known about the functions of GSTs in CAP tolerance in A. ipsilon. RESULTS A cDNA sequence (designated AiGSTu1) encoding an unclassified GST was identified from A. ipsilon. AiGSTu1 is highly expressed during the 3rd -instar larval and the pupal stages. Most of the mRNA transcripts were found in larval Malpighian tubules. Exposure to CAP strongly enhanced AiGSTu1 expression, GST activity, hydrogen peroxide (H2 O2 ) and malondialdehyde levels in larvae. H2 O2 treatment upregulated the transcription level of AiGSTu1, suggesting that CAP-induced oxidative stress may activate AiGSTu1 expression. The activity of recombinant AiGSTu1 was inhibited by CAP in a dose-dependent manner. Metabolism assay results demonstrated that AiGSTu1 is capable of depleting CAP. Overexpression of AiGSTu1 enhanced the tolerance of Escherichia coli cells to H2 O2 and the oxidative stress inducer, cumene hydroperoxide. Silencing of AiGSTu1 by RNA interference increased the susceptibility of A. ipsilon larvae to CAP. CONCLUSION The findings of this study provide valuable insights into the potential role of AiGSTu1 in CAP detoxification and will improve our understanding of CAP tolerance in A. ipsilon. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Hao-Lan Yang
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Jia-Min Yu
- Sichuan Branch of China National Tobacco Corporation, Chengdu, China
| | - Fu Cao
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Wu-Ye Li
- Tobacco Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Bin Li
- Sichuan Branch of China National Tobacco Corporation, Chengdu, China
| | - Xiao Lei
- Luzhou Branch of Sichuan Tobacco Corporation, Luzhou, China
| | - Shi-Guang Li
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Su Liu
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Mao-Ye Li
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
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11
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Liu J, Guo B, Zhong S, Shi Y, Li Z, Yu Z, Hao Z, Zhang L, Li F, Wang Y, Li Y. Novel Evodiamine-Based Sulfonamide Derivatives as Potent Insecticide Candidates Targeting Insect Ryanodine Receptors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:1292-1301. [PMID: 38178001 DOI: 10.1021/acs.jafc.3c05680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Pests represent an important impediment to efficient agricultural production and pose a threat to global food security. On the basis of our prior research focused on identifying insecticidal leads targeting insect ryanodine receptors (RyRs), we aimed to identify evodiamine scaffold-based novel insecticides. Thus, a variety of evodiamine-based derivatives were designed, synthesized, and assessed for their insecticidal activity against the larvae of Mythimna separata (M. separata) and Plutella xylostella (P. xylostella). The preliminary bioassay results revealed that more than half of the target compounds exhibited superior activity compared to evodiamine, matrine, and rotenone against M. separata. Among these, compound 21m displayed the most potent larvicidal efficiency, with a remarkable mortality rate of 93.3% at 2.5 mg/L, a substantial improvement over evodiamine (10.0% at 10 mg/L), matrine (10.0% at 200 mg/L), and rotenone (30.0% at 200 mg/L). In the case of P. xylostella, compounds 21m and 21o displayed heightened larvicidal activity, boasting LC50 values of 9.37 × 10-2 and 0.13 mg/L, respectively, surpassing that of evodiamine (13.41 mg/L), matrine (291.78 mg/L), and rotenone (18.39 mg/L). A structure-activity relationship analysis unveiled that evodiamine-based derivatives featuring a cyclopropyl sulfonyl group at the nitrogen atom of the B ring and a fluorine atom in the E ring exhibited more potent larvicidal effects. This finding was substantiated by calcium imaging experiments and molecular docking, which suggested that 21m could target insect RyRs, including resistant mutant RyRs of P. xylostella (G4946E and I4790M), with higher affinity than chlorantraniliprole (CHL). Additionally, cytotoxicity assays highlighted that the potent compounds 21i, 21m, and 21o displayed favorable selectivity and low toxicity toward nontarget organisms. Consequently, compound 21m emerges as a promising candidate for further development as an insecticide targeting insect RyRs.
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Affiliation(s)
- Jingbo Liu
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Bingyan Guo
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Siying Zhong
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Yabing Shi
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Zhengping Li
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zesheng Hao
- Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan 250100, P. R. China
| | - Li Zhang
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Fengyun Li
- College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P. R. China
| | - Yuanhong Wang
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, P. R. China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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12
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Zhou Y, Wu YM, Fan R, Ouyang J, Zhou XL, Li ZB, Janjua MU, Li HG, Bao MH, He BS. Transcriptome analysis unveils the mechanisms of lipid metabolism response to grayanotoxin I stress in Spodoptera litura. PeerJ 2023; 11:e16238. [PMID: 38077416 PMCID: PMC10710133 DOI: 10.7717/peerj.16238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 09/14/2023] [Indexed: 12/18/2023] Open
Abstract
Background Spodoptera litura (tobacco caterpillar, S. litura) is a pest of great economic importance due to being a polyphagous and world-distributed agricultural pest. However, agricultural practices involving chemical pesticides have caused resistance, resurgence, and residue problems, highlighting the need for new, environmentally friendly methods to control the spread of S. litura. Aim This study aimed to investigate the gut poisoning of grayanotoxin I, an active compound found in Pieris japonica, on S. litura, and to explore the underlying mechanisms of these effects. Methods S. litura was cultivated in a laboratory setting, and their survival rate, growth and development, and pupation time were recorded after grayanotoxin I treatment. RNA-Seq was utilized to screen for differentially expressed genes (DEGs). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were conducted to determine the functions of these DEGs. ELISA was employed to analyze the levels of lipase, 3-hydroxyacyl-CoA dehydrogenase (HOAD), and acetyl-CoA carboxylase (ACC). Hematoxylin and Eosin (H & E) staining was used to detect the development of the fat body. Results Grayanotoxin I treatment significantly suppressed the survival rate, growth and development, and pupation of S. litura. RNA-Seq analysis revealed 285 DEGs after grayanotoxin I exposure, with over 16 genes related to lipid metabolism. These 285 DEGs were enriched in the categories of cuticle development, larvae longevity, fat digestion and absorption. Grayanotoxin I treatment also inhibited the levels of FFA, lipase, and HOAD in the hemolymph of S. litura. Conclusion The results of this study demonstrated that grayanotoxin I inhibited the growth and development of S. litura. The mechanisms might, at least partly, be related to the interference of lipid synthesis, lipolysis, and fat body development. These findings provide valuable insights into a new, environmentally-friendly plant-derived insecticide, grayanotoxin I, to control the spread of S. litura.
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Affiliation(s)
- Yi Zhou
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Yong-mei Wu
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Rong Fan
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Jiang Ouyang
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Xiao-long Zhou
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Zi-bo Li
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
| | - Muhammad Usman Janjua
- Changsha Medical University, School of International Education, Changsha, Hunan, China
| | - Hai-gang Li
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
- Changsha Medical University, Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, School of Pharmaceutical Science, Changsha, Hunan, China
| | - Mei-hua Bao
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
- Changsha Medical University, Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, School of Pharmaceutical Science, Changsha, Hunan, China
| | - Bin-sheng He
- Changsha Medical University, The Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha, Hunan, China
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13
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Sun P, Zhang Z, Zhao J, Zhang H, Lin L, Wang X, Li L, Cao P, Wang Z, Li Z, Yuchi Z, Li Y. Novel Nitrophenyl Substituted Anthranilic Diamide Derivatives: Design, Synthesis, Selectivity, and Antiresistance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:17646-17657. [PMID: 37939255 DOI: 10.1021/acs.jafc.3c03067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Diamide insecticides have gained popularity due to their high efficacy and low toxicity to nontarget organisms. However, diamide-associated resistance has emerged recently, causing a significant reduction in their potency, thereby hindering sustainable agricultural development. Here, we explored novel diamide insecticide analogs and, using a structure-based approach, rationally designed and synthesized 28 nitrophenyl substituted anthranilic diamides. Most of the compounds showed moderate to good activity against Mythimna separata, Plutella xylostella, and Spodoptera frugiperda. Among them, compounds Ia and Im showed extraordinarily high activity and their mode of action was verified on isolated neurons. Additionally, Im exhibited over 10-fold greater potency than chlorantraniliprole in a HEK293 cell line stably expressing S. frugiperda ryanodine receptors (SfRyRs) containing the resistance mutations, G4891E and I4734M. The binding modes of Im in the SfRyRs were predicted using in silico molecular docking analysis. Our novel nitrophenyl substituted anthranilic diamide derivatives provide valuable insights for the design of insecticidal RyR-targeting compounds to effectively control both wild type and diamide insecticide-resistant lepidopteran pests.
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Affiliation(s)
- Pengwei Sun
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Ze Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Jiahui Zhao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Hongyuan Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Lianyun Lin
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Xinyao Wang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Linshan Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Peng Cao
- Key Laboratory of Drug Targets and Drug Leads for Degenerative Diseases, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Zhongwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zhiguang Yuchi
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, 371 Tongzipo Road, Changsha 410013, Hunan, China
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14
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Gong Y, Li T, Hussain A, Xia X, Shang Q, Ali A. Editorial: The side effects of insecticides on insects and the adaptation mechanisms of insects to insecticides. Front Physiol 2023; 14:1287219. [PMID: 37811494 PMCID: PMC10557070 DOI: 10.3389/fphys.2023.1287219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023] Open
Affiliation(s)
- Youhui Gong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ting Li
- Department of Biological Sciences, Alabama State University, Montgomery, AL, United States
| | - Adil Hussain
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Xiaoming Xia
- The College of Plant Protection, Shangdong Agricultural University, Taian, China
| | - Qiangli Shang
- College of Plant Science, Jilin University, Changchun, China
| | - Asad Ali
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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15
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Sun Y, Liu ST, Ling Y, Wang L, Ni H, Guo D, Dong BB, Huang Q, Long LP, Zhang S, Wu SF, Gao CF. Insecticide resistance monitoring of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) and its mechanism to chlorantraniliprole. PEST MANAGEMENT SCIENCE 2023; 79:3290-3299. [PMID: 37127919 DOI: 10.1002/ps.7512] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/30/2023] [Accepted: 05/02/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND The rice leaffolder, Cnaphalocrocis medinalis (Guenée), has become an increasingly occurring pest in Asia in recent years. Chemical control remains the most efficient and primary tool for controlling this pest. In this study, we report the resistance status of C. medinalis in China to multiple insecticides including chlorantraniliprole and the main resistance mechanism. RESULTS Significant variations among field populations of C. medinalis in their resistance to 10 insecticides were observed during 2019-2022. Most of the tested field populations have developed low-to-moderate levels of resistance to abamectin (RR = 2.4-22.2), emamectin benzoate (RR = 1.9-40.3) and spinetoram (RR = 4.2-24.8). Some field populations have developed low resistance to chlorpyrifos (RR = 0.9-6.8). Indoxacarb, metaflumizone, methoxenozide and Bacillus thuringiensis (Bt) potency against all tested populations remained similar. For diamides, significantly higher levels of resistance to chlorantraniliprole (RR = 64.9-113.7) were observed in 2022, whereas all tested field populations in 2019-2021 exhibited susceptible or moderate resistance level to chlorantraniliprole (RR = 1.3-22.1). Cross-resistance between chlorantraniliprole and tetraniliprole was significant. Analysis of ryanodine receptor (RyR) mutations showed that mutation of I4712M was present in resistant populations of C. medinalis with different levels of chlorantraniliprole resistance and was the main mechanism conferring diamide resistance. Mutation of Y4621D also was detected in one tested population. Resistance management strategies for the control of C. medinalis are discussed. CONCLUSION C. medinalis has developed high level of resistance to chlorantraniliprole. RyR mutations were deemed as the mechanism. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yu Sun
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Si-Tong Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Yunnan Agricultural Reclamation Industry Research Institute Co., Ltd., Kunming, China
| | - Yan Ling
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Nanning, China
| | - Li Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Huan Ni
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Di Guo
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Bei-Bei Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qian Huang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Nanning, China
| | - Li-Ping Long
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Nanning, China
| | - Shuai Zhang
- Ministry of Agriculture, National Agro-tech Extension and Service Center, Beijing, China
| | - Shun-Fan Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Cong-Fen Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
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16
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Yang J, Guan D, Wei J, Ge H, Cao X, Lv S, Zhou X, Zheng Y, Meng X, Wang J, Qian K. Mechanisms underlying the effects of low concentrations of chlorantraniliprole on development and reproduction of the fall armyworm, Spodoptera frugiperda. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 191:105362. [PMID: 36963952 DOI: 10.1016/j.pestbp.2023.105362] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/03/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
It is well known that sublethal dose of insecticides induces life history trait changes of both target and non-target insect species, however, the underlying mechanisms remain not well understood. In this study, the effects of low concentrations of the anthranilic diamide insecticide chlorantraniliprole on the development and reproduction of the fall armyworm (FAW), Spodoptera frugiperda, were evaluated, and the underlying mechanisms were explored. The results showed that exposure of FAW to LC10 and LC30 chlorantraniliprole prolonged the larvae duration, decreased the mean weight of the larvae and pupae, and lowered the pupation rate as well as emergence rate. The fecundity of female adults was also negatively affected by treatment with low concentrations of chlorantraniliprole. Consistently, we found that exposure of FAW to LC30 chlorantraniliprole downregulated the mRNA expression of juvenile hormone (JH) esterase (SfJHE), leading to the increase of JH titer in larvae. We also found that treatment with low concentrations of chlorantraniliprole suppressed the expression of ribosomal protein S6 kinase1 (SfS6K1) in female adults, resulting in the downregulation of the gene encoding vitellogenin (SfVg). These results provided insights into the mechanisms underlying the effects of low concentrations of insecticides on insect pests, and had applied implications for the control of FAW.
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Affiliation(s)
- Jie Yang
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Daojie Guan
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jiaping Wei
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Huichen Ge
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Xiaoli Cao
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Susu Lv
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyang Zhou
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Yang Zheng
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Xiangkun Meng
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jianjun Wang
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Kun Qian
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou 225009, China.
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17
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Yang G, Zhou C, Wang Y, Li Y, Gu Y, Li Z, Cheng J, Xu X. Anthranilic Diamides Containing Monofluoroalkene Amide Linkers as Potential Insect RyR Activators: Design, Synthesis, Bio-evaluation, and Computational Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2827-2841. [PMID: 36735252 DOI: 10.1021/acs.jafc.2c07680] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In order to develop anthranilic diamides with novel chemotypes, a series of anthranilic diamides with acrylamide linkers were designed and synthesized. The results of preliminary bioassays indicated that compounds with a monofluoroalkene amide linker (Z-isomer) exhibited good larvicidal activity against lepidopteran pests. The LC50 values of compound A23 against Mythimna separata and Plutella xylostella were 1.44 and 3.48 mg·L-1, respectively, while those of chlorantraniliprole were 0.08 and 0.06 mg·L-1, respectively. Compound A23 also exhibited the same level of lethal potency against resistant and susceptible strains of Spodoptera frugiperda at 50 mg·L-1. Compound A23 exhibited similar symptoms as chlorantraniliprole in test larvae. Comparative molecular field analysis was conducted to demonstrate the structure-activity relationship. Central neuron calcium imaging experiments indicated that monofluoroalkene compounds were potential ryanodine receptor (RyR) activators and activated calcium channels in both the endoplasmic reticulum and the cell membrane. Molecular docking suggested that A23 had a better binding potency to P. xylostella RyR than chlorantraniliprole. The MM|GBSA dG bind value of A23 with P. xylostella RyR was 117.611 kcal·mol-1. Monofluoroalkene was introduced into anthranilic diamide insecticides for the first time and brought a novel chemotype for insect RyR activators. The feasibility of fluoroalkenes as insecticide fragments was explored.
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Affiliation(s)
- Guantian Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Cong Zhou
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yutong Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yuxin Li
- State Key Laboratory of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yucheng Gu
- Jealott's Hill International Research Centre, Syngenta, Bracknell, Berkshire RG42 6EY, U.K
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
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Spodoptera exigua Multiple Nucleopolyhedrovirus Increases the Susceptibility to Insecticides: A Promising Efficient Way for Pest Resistance Management. BIOLOGY 2023; 12:biology12020260. [PMID: 36829536 PMCID: PMC9953395 DOI: 10.3390/biology12020260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023]
Abstract
Spodoptera exigua is a polyphagous pest of diverse crops and causes considerable economic losses. The overuse of chemical insecticides for controlling this pest results in insecticide resistance, environmental pollution and toxicity to other non-target organisms. Therefore, a sustainable and efficient way for pest management is urgently required. In this study, laboratory bioassays of eleven commonly used insecticides, the specific entomopathogen of S. exigua (Spodoptera exigua multiple nucleopolyhedrovirus, SeMNPV), and SeMNPV-insecticide combinations against the S. exigua laboratory population and two field populations were tested. Our results indicated that the two field populations had developed resistance to almost half of the tested insecticides, while SeMNPV had good virulence in all populations. Interestingly, the combined use of SeMNPV enhanced the toxicity of the tested insecticides against all populations to a different extent and considerably reduced the insecticide resistance of S. exigua field populations or even recovered the susceptibility to above insecticides. Furthermore, the field trial showed that the combined application of SeMNPV contributed to promoting the control efficacy of emamectin benzonate and chlorfenapyr. These results provide a promising efficient way for pest resistance management and an environmentally friendly approach for controlling S. exigua with the combined application of nucleopolyhedroviruses and insecticides.
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Teng H, Zuo Y, Yuan J, Fabrick JA, Wu Y, Yang Y. High frequency of ryanodine receptor and cytochrome P450 CYP9A186 mutations in insecticide-resistant field populations of Spodoptera exigua from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 186:105153. [PMID: 35973775 DOI: 10.1016/j.pestbp.2022.105153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/07/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
The beet armyworm, Spodoptera exigua is a global agricultural pest that is polyphagous, highly dispersive, and often difficult to control due to resistance to many insecticides. Previous studies showed that a target site mutation in the S. exigua ryanodine receptor (SeRyR) corresponding to I4743M contributes approximately 20-fold resistance to chlorantraniliprole, whereas a mutation in the cytochrome P450 enzyme CYP9A186 corresponding to F116V confers 200-fold to emamectin benzoate through enhanced metabolic detoxification. Here, high frequencies of mutations were found among six China S. exigua field populations collected from 2016 to 2019 resulting in SeRyR I4743M and CYP9A186 F116V substitutions, with some populations having high levels of resistance to chlorantraniliprole and emamectin benzoate, respectively. Whereas we found a significant correlation between emamectin benzoate resistance level and the allele frequency of CYP9A186 F116V, no significant correlation was found between chlorantraniliprole resistance level and SeRyR I4743M allele frequency in the six field populations. These results suggest that CYP9A186 F116V is a major resistance mechanism for emamectin benzoate in the tested field populations, whereas it is likely that resistance mechanisms other than SeRyR I4743M are responsible for resistance to chlorantraniliprole in the six China field populations. Because of the growing resistance to these two insecticides by S. exigua in China, the use of insecticidal compounds with different modes of action and/or other integrated pest management strategies are needed to further delay the evolution of insecticide resistance and effectively manage S. exigua in China.
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Affiliation(s)
- Haiyuan Teng
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Institute of Eco-Environmental and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yayun Zuo
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jing Yuan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Jeffrey A Fabrick
- USDA ARS, U.S. Arid Land Agricultural Research Center, Maricopa, AZ 85138, USA.
| | - Yidong Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yihua Yang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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Teng H, Zuo Y, Jin Z, Wu Y, Yang Y. Associations between acetylcholinesterase-1 mutations and chlorpyrifos resistance in beet armyworm, Spodoptera exigua. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 184:105105. [PMID: 35715044 DOI: 10.1016/j.pestbp.2022.105105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/13/2022] [Accepted: 04/16/2022] [Indexed: 06/15/2023]
Abstract
Control of the beet armyworm, Spodoptera exigua depends heavily on chemical insecticides. Chlorpyrifos, an acetylcholinesterase (AChE) inhibitor, has been used in beet armyworm control for many years in China. Here we describe high level resistance to chlorpyrifos in a S. exigua strain, FX19-R, which was developed from a field-collected Chinese strain (FX) by selection with chlorpyrifos in the laboratory. FX19-R showed 1001-fold resistance to chlorpyrifos compared with the laboratory reference strain WH-S. The esterase inhibitor triphenyl phosphate (TPP) provided significant but small synergism (only 3.5-fold) for chlorpyrifos and neither of the glutathione s-transferase depletor diethyl maleate and the cytochrome P450s inhibitor piperonyl butoxide provided any detectable synergism, indicating that AChE insensitivity may play the major role in the resistance in FX19-R. Consistent with this, an amino acid substitution, F443Y (F331Y in standard Torpedo californica numbering) in AChE1 was identified in the FX19-R strain and shown to be tightly linked to chlorpyrifos resistance. Precisely homologous substitutions have been associated with organophosphate resistance in other pest species. A novel amino acid substitution, G311S (or G198S in standard numbering), was also identified in the reference strain WH-S. Recombinantly expressed AChE1 proteins carrying the G311S and F443Y substitutions were about 4.2-fold and 210-fold less sensitive to inhibition by chlorpyrifos oxon than wild-type AChE1, respectively. These results enhance our understanding of the mechanisms of chlorpyrifos resistance and provide a basis for resistance management based on monitoring the F443Y and G311S substitutions.
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Affiliation(s)
- Haiyuan Teng
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Institute of Eco-Environmental and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yayun Zuo
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zeng Jin
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yidong Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yihua Yang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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Zhang Z, Sun P, Zhao J, Zhang H, Wang X, Li L, Xiong L, Yang N, Li Y, Yuchi Z, Li Z. Design, synthesis and biological activity of diamide compounds based on 3-substituent of the pyrazole ring †. PEST MANAGEMENT SCIENCE 2022; 78:2022-2033. [PMID: 35122377 DOI: 10.1002/ps.6826] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/12/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Diamide insecticides have attracted significant attention due to their high efficacy and low toxicity to non-target organisms since they were introduced to the market. In order to tackle the problems of insecticide resistance and ecological safety, 16 novel nitrobenzene substituted anthranilic diamides with ester, hydroxyl or sulfonyl at the 3-position of the pyrazole ring were designed and synthesized. RESULTS All of these compounds possessed good activity against the ryanodine receptor (RyR) from Spodoptera frugiperda and relatively lower activity against mammalian RyR1, showing a better insect-selectivity compared to chlorantraniliprole in a cell-based assay. The molecular docking analysis predicted the binding conformations of these compounds, which showed a good correlation between the insecticidal activity and the binding scores. In vitro studies using a calcium imaging method demonstrated that the novel compounds could not only activate the RyR but may also target the dihydropyridine receptor on the plasma membrane of insect neurons, implicating a similar but not same mode of action. CONCLUSION Substituted anthranilic diamides with an ester at the 3-position of the pyrazole ring exhibited a promising insecticidal activity and better insect-selectivity, which provided insight into the rational design of a new generation of effective diamide insecticides.
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Affiliation(s)
- Ze Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Pengwei Sun
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Jiahui Zhao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Hongyuan Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Xinyao Wang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Linshan Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
| | - Zhiguang Yuchi
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin, China
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Rabelo MM, Santos IB, Paula-Moraes SV. Spodoptera exigua (Hubner) (Lepidoptera: Noctuidae) Fitness and Resistance Stability to Diamide and Pyrethroid Insecticides in the United States. INSECTS 2022; 13:insects13040365. [PMID: 35447807 PMCID: PMC9030708 DOI: 10.3390/insects13040365] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/30/2022] [Accepted: 04/06/2022] [Indexed: 11/21/2022]
Abstract
Simple Summary Spodoptera exigua is a polyphagous pest, commonly known as beet armyworm. This pest is distributed worldwide and causes yield reduction in a variety of crops. Chemical control using synthetic insecticides is the primary strategy to manage beet armyworm. In the United States, beet armyworm resistance to both chlorantraniliprole and bifenthrin insecticides was first reported in 2020. Here we examined beet armyworm fitness and stability of resistance to chlorantraniliprole and pyrethroid insecticides, since knowledge of the stability of resistance is a crucial aspect when recommending rotation of insecticides with different mode of action. Our results have indicated no decrease in bifenthrin resistance for at least a three-year period (i.e., 27 generations) when insecticide exposure was suspended. However, susceptibility to chlorantraniliprole dropped approximately 160-fold through this three-year period. Our results indicate that beet armyworm resistance to bifenthrin is stable, but unstable to chlorantraniliprole. Unstable resistance can be successfully managed at field level by switching off the selection pressure with replacement of the insecticide other than a pyrethroid. Abstract In the United States, beet armyworm resistance to both chlorantraniliprole and bifenthrin insecticides was first reported in 2020. Here we examined beet armyworm fitness and stability of resistance to chlorantraniliprole and pyrethroid insecticides since knowledge of the stability of resistance is a crucial aspect when recommending rotation of insecticides with different mode of action. Concentration-mortality bioassays were performed with field and laboratory susceptible populations. The F2, F13, and F27 generations of the field-derived population, maintained in the laboratory without insecticide, were exposed to commercial formulations of bifenthrin and chlorantraniliprole using the leaf-dip bioassay method (IRAC n. 007). Insects from F27 had the fitness components (survival, body weight, development time) documented and compared by LSM in each insecticide concentration tested. The resistance ratio to chlorantraniliprole reached 629, 80, 15-fold at F2, F13, and F27, respectively. These results contrast with an over 1000-fold resistance ratio to bifenthrin in all generations. The field-derived population had fitness reduced by chlorantraniliprole, but not by bifenthrin. In summary, the resistance of beet armyworm to bifenthrin was stable with no shift in fitness. In contrast, resistance to chlorantraniliprole was not stable through the generations kept in the laboratory without selection pressure, likely due to fitness cost.
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Sun Y, Tao S, Zhang W, Jiang B, Dai HY, Liu BS, Zhang YJ, Kong XD, Zhao J, Bai LX. Transcriptome profile analysis reveals the emamectin benzoate-induced genes associated with olfaction and metabolic detoxification in Spodoptera exigua Hübner (Lepidoptera: noctuidae). ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2052190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Yang Sun
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, People’s Republic of China
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People’s Republic of China
| | - Simin Tao
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, People’s Republic of China
| | - Wen Zhang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, People’s Republic of China
| | - Bin Jiang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, People’s Republic of China
| | - Han-Yang Dai
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People’s Republic of China
| | - Bao-Sheng Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People’s Republic of China
| | - Yong-Jun Zhang
- Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Xiang-dong Kong
- Institute of Bioinformatics, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People’s Republic of China
| | - Jing Zhao
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People’s Republic of China
| | - Li-Xin Bai
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People’s Republic of China
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Resistance Monitoring for Six Insecticides in Vegetable Field-Collected Populations of Spodoptera litura from China. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030255] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The common cutworm, Spodoptera litura (Fabricius), is a notorious and damaging insect pest of horticultural crops in China, the management of which largely relies on chemical agents that are limited by the development of chemical resistance in target populations. As such, resistance monitoring of S. litura populations is a necessary part of management strategies of insecticide resistance. In the current work, we monitored resistance to six insecticides in field-collected populations of S. litura sampled from eleven provinces across China in 2021. The results show that S. litura populations developed significant resistance against chlorantraniliprole, cyantraniliprole, metaflumizone, and pyridalyl and low levels of resistance to chromafenozide. However, S. litura populations were susceptible or exhibited minimal resistance to tetraniliprole. Possible cross-resistances between chlorantraniliprole, cyantraniliprole, metaflumizone, pyridalyl, and chromafenozide were found by pairwise correlation, which also revealed that tetraniliprole lacked cross-resistance with all insecticides tested. Our results suggest suspending the use of chemical agents against which S. litura displayed significant field-evolved resistance, such as chlorantraniliprole, metaflumizone, and pyridalyl, in favor of pesticides against which S. litura was susceptible or exhibited minimal resistance, such as tetraniliprole and chromafenozide, which may help slow the development of insecticide resistance, and in which field management programs aimed at controlling S. litura in China would benefit from the integration of such survey-informed insecticide application strategies. Moreover, the baseline susceptibility confirmed for the six tested insecticides can contribute to design strategies of resistance management for S. litura.
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Magaña AJ, Dáder B, Sancho G, Adán Á, Morales I, Viñuela E. Comparison of the Parasitization of Chelonus inanitus L. (Hymenoptera: Braconidae) in Two Spodoptera Pests and Evaluation of the Procedure for Its Production. INSECTS 2022; 13:99. [PMID: 35055942 PMCID: PMC8779801 DOI: 10.3390/insects13010099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 12/10/2022]
Abstract
Chelonus inanitus (L.) is an egg-larval parasitoid of noctuids Spodoptera exigua (Hübner) and S. littoralis (Boisduval), whose mass rearing or real potential has not been targeted yet. To improve the rearing in the factitious host Ephestia kuehniella Zeller, we investigated the influence of host age and number of females parasitizing simultaneously on the overall rearing success, the influence of host age on the life cycle, and the influence of host species on the parasitoid body size. The proportion of emerging C. inanitus was higher from young host eggs, but more females emerged from mature eggs. Under high parasitoid competition, we observed a reduction in non-parasitized hosts without reducing parasitoid emergence. The parasitoid life cycle was longer in females, but the mismatch between sexes was smaller in mature eggs. The parasitoid size was smaller in the factitious host than in the natural hosts. Under semi-field conditions, we investigated the competition among parasitoid females on the overall parasitism success. The reproductive parasitism was more successful in S. exigua than in S. littoralis, and the maximum emergence was reached with three and four females, respectively. The control of S. littoralis may be attributed to the high developmental mortality, a non-reproductive parasitism that is often underestimated.
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Affiliation(s)
| | - Beatriz Dáder
- Unidad de Protección de Cultivos, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Avda. Puerta de Hierro 2, 28040 Madrid, Spain; (A.J.M.); (G.S.); (Á.A.); (I.M.); (E.V.)
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Huang JM, Sun H, He LF, Liu C, Ge WC, Ni H, Gao CF, Wu SF. Double ryanodine receptor mutations confer higher diamide resistance in rice stem borer, Chilo suppressalis. PEST MANAGEMENT SCIENCE 2021; 77:4971-4979. [PMID: 34223694 DOI: 10.1002/ps.6539] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The striped rice stem borer, Chilo suppressalis (Lepidoptera: Pyraidae), is one of the most serious rice pests in China. Chlorantraniliprole was used extensively for C. suppressalis control over the past ten years, and some field populations have developed high resistance. In this study, we report the chlorantraniliprole resistance status of C. suppressalis in China and the resistance mechanism. RESULTS Significant geographical variations of chlorantraniliprole susceptibility were observed among 28 C. suppressalis field populations in 2019-2020. The LC50 values varied from 2907.874 mg L-1 (XS19) to 1.524 mg L-1 (QW19). Most tested field populations collected from Zhejiang, Jiangxi, Hunan and Anhui provinces in 2020 showed a high level of resistance to chlorantraniliprole (RR = 311.9-2060.1), whereas Jiangsu and Sichuan province populations remained susceptible. Analysis of RyR mutations showed that mutations of I4758M, Y4667D, Y4667C and Y4891F were present in resistant populations of C. suppressalis with different levels of chlorantraniliprole resistance. The frequency of the Y4667C mutation was correlated with chlorantraniliprole resistance in YY19 (RR = 702.6) and YY20 (RR = 1426.8) populations, with the homozygous mutation frequencies of 15.6% and 29.4%, respectively. High contributions of the I4758M and Y4667C double mutation to diamide resistance was demonstrated with CRISPR/Cas9-modified D. melanogaster. Flies bearing the Y4667C mutation (I4758M and Y4667C double mutation in C. suppressalis) exhibited high resistance to chlorantraniliprole (RR = 172.1), and moderate resistance to cyantraniliprole (RR = 79.2) and tetra chlorantraniliprole (RR = 43.6), which were higher than that of single mutations. CONCLUSIONS Chlorantraniliprole resistance in C. suppressalis is intensifying in China. RyR double mutations (i.e. I4758M and Y4667C) confer higher diamide resistance than single mutations.
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Affiliation(s)
- Jing-Mei Huang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Hao Sun
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Lin-Feng He
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Chong Liu
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Wen-Chao Ge
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Huan Ni
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Cong-Fen Gao
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Shun-Fan Wu
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
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Simon S, Breeschoten T, Jansen HJ, Dirks RP, Schranz ME, Ros VID. Genome and transcriptome analysis of the beet armyworm Spodoptera exigua reveals targets for pest control. G3 (BETHESDA, MD.) 2021; 11:jkab311. [PMID: 34557910 PMCID: PMC8527508 DOI: 10.1093/g3journal/jkab311] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/19/2021] [Indexed: 12/13/2022]
Abstract
The genus Spodoptera (Lepidoptera: Noctuidae) includes some of the most infamous insect pests of cultivated plants including Spodoptera frugiperda, Spodoptera litura, and Spodoptera exigua. To effectively develop targeted pest control strategies for diverse Spodoptera species, genomic resources are highly desired. To this aim, we provide the genome assembly and developmental transcriptome comprising all major life stages of S. exigua, the beet armyworm. Spodoptera exigua is a polyphagous herbivore that can feed on > 130 host plants, including several economically important crops. The 419 Mb beet armyworm genome was sequenced from a female S. exigua pupa. Using a hybrid genome sequencing approach (Nanopore long-read data and Illumina short read), a high-quality genome assembly was achieved (N50 = 1.1 Mb). An official gene set (18,477 transcripts) was generated by automatic annotation and by using transcriptomic RNA-seq datasets of 18 S. exigua samples as supporting evidence. In-depth analyses of developmental stage-specific expression combined with gene tree analyses of identified homologous genes across Lepidoptera genomes revealed four potential genes of interest (three of them Spodoptera-specific) upregulated during first- and third-instar larval stages for targeted pest-outbreak management. The beet armyworm genome sequence and developmental transcriptome covering all major developmental stages provide critical insights into the biology of this devastating polyphagous insect pest species worldwide. In addition, comparative genomic analyses across Lepidoptera significantly advance our knowledge to further control other invasive Spodoptera species and reveals potential lineage-specific target genes for pest control strategies.
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Affiliation(s)
- Sabrina Simon
- Biosystematics Group, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Thijmen Breeschoten
- Biosystematics Group, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Hans J Jansen
- Future Genomics Technologies, Leiden, The Netherlands
| | - Ron P Dirks
- Future Genomics Technologies, Leiden, The Netherlands
| | - M Eric Schranz
- Biosystematics Group, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Vera I D Ros
- Laboratory of Virology, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
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A Comparative Perspective on Functionally-Related, Intracellular Calcium Channels: The Insect Ryanodine and Inositol 1,4,5-Trisphosphate Receptors. Biomolecules 2021; 11:biom11071031. [PMID: 34356655 PMCID: PMC8301844 DOI: 10.3390/biom11071031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/08/2021] [Accepted: 07/10/2021] [Indexed: 02/03/2023] Open
Abstract
Calcium (Ca2+) homeostasis is vital for insect development and metabolism, and the endoplasmic reticulum (ER) is a major intracellular reservoir for Ca2+. The inositol 1,4,5- triphosphate receptor (IP3R) and ryanodine receptor (RyR) are large homotetrameric channels associated with the ER and serve as two major actors in ER-derived Ca2+ supply. Most of the knowledge on these receptors derives from mammalian systems that possess three genes for each receptor. These studies have inspired work on synonymous receptors in insects, which encode a single IP3R and RyR. In the current review, we focus on a fundamental, common question: “why do insect cells possess two Ca2+ channel receptors in the ER?”. Through a comparative approach, this review covers the discovery of RyRs and IP3Rs, examines their structures/functions, the pathways that they interact with, and their potential as target sites in pest control. Although insects RyRs and IP3Rs share structural similarities, they are phylogenetically distinct, have their own structural organization, regulatory mechanisms, and expression patterns, which explains their functional distinction. Nevertheless, both have great potential as target sites in pest control, with RyRs currently being targeted by commercial insecticide, the diamides.
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