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Abubakar M, Shad SA. Realized heritability, inheritance, and mechanism of chlorfenapyr resistance in biocontrol agent, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae): A step towards sustainable pest management. CHEMOSPHERE 2024; 362:142726. [PMID: 38950750 DOI: 10.1016/j.chemosphere.2024.142726] [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: 03/01/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/03/2024]
Abstract
A field population of Chrysoperla carnea was exposed for 17 generations to chlorfenapyr insecticide that resulted in 217-fold resistance compared to a susceptible strain. The overlapping of LC50 values in reciprocal crosses and their dominance values indicated that chlorfenapyr resistance was autosomal and incompletely dominant. The chi-square analysis of back-cross mortality confirmed the polygenic nature of chlorfenapyr resistance. The results of effective dominance of chlorfenapyr resistance indicated that resistance at the highest concentration was completely recessive. The realized heritability of chlorfenapyr resistance in the first 9, last 9, and a total of 18 generations was 0.28, 0.42, and 0.31, respectively. Furthermore, synergism results showed that both experimental synergists, PBO and DEF, did not synergize the toxicity of chlorfenapyr. In conclusion, C. carnea had been found to have autosomal, partially dominant, and polygenic chlorfenapyr resistance. Meaning that thereby resistance is inherited through multiple genes and is not limited to a single gene or sex-linked trait. These findings will help to develop an effective IPM model focusing on the simultaneous use of selective insecticides and resistant biocontrol agents to reduce the problem of resistance development in pest populations.
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Affiliation(s)
- Muhammad Abubakar
- Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, Pakistan.
| | - Sarfraz Ali Shad
- Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, Pakistan.
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Guo Z, Ma H, Tang J, Wu M, He S, Wan H, Li J, Ma K. Chlorantraniliprole Resistance in Spodoptera frugiperda: Resistance Monitoring, Resistance Risk, and Resistance Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39038437 DOI: 10.1021/acs.jafc.4c03361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Spodoptera frugiperda is a significant global pest, and chlorantraniliprole (CAP) is extensively used in China for its control. Understanding CAP resistance in S. frugiperda is crucial for effective management of this pest. Field populations exhibited varying degrees of resistance to CAP (RR = 1.74-5.60-fold). After 10 generations of selection, the CAP-resistant strain developed over 10-fold resistance, with a realized heritability (h2) of 0.10. Genetic analysis reveals inheritance patterns as autosomal, incomplete recessive, and monofactorial. The CAP-resistant strain showed limited cross-resistance to lufenuron and tetrachlorantraniliprole, negative cross-resistance to spinetoram, and no observed cross-resistance to other insecticides. Biochemical analysis suggested that P450-mediated detoxification is the primary resistance mechanism, with 26 genes overexpressed in the CAP-resistant strain. Additionally, the knockdown of CYP4L13, CYP6B39, CYP6B40, and CYP4G74 significantly increased the sensitivity of the resistant larvae to CAP. These findings highlight the resistance risk of CAP in S. frugiperda and emphasize the crucial role of P450 enzymes in resistance.
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Affiliation(s)
- Zhimin Guo
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huina Ma
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jiahui Tang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mengyan Wu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Shun He
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hu Wan
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jianhong Li
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kangsheng Ma
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
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Yang Y, Wang A, Xue C, Tian H, Zhang Y, Zhou M, Zhao M, Liu Z, Zhang J. MicroRNA PC-5p-3991_515 mediates triflumezopyrim susceptibility in the small brown planthopper through regulating the post-transcriptional expression of P450 CYP417A2. PEST MANAGEMENT SCIENCE 2024; 80:1761-1770. [PMID: 38018281 DOI: 10.1002/ps.7905] [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: 08/16/2023] [Revised: 11/18/2023] [Accepted: 11/29/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Cytochrome P450 monooxygenases (P450s) are recognized as a major contributor to metabolic resistance in insects to most insecticides, through gene overexpressions and protein mutations. MicroRNA (miRNA), an important post-transcriptional regulator, has been reported to promote insecticide resistance by mediating the expression of detoxification enzyme genes. RESULTS In the present study, we reported that a novel microRNA PC-5p-3991_515 was involved in the post-transcriptional regulation of CYP417A2 and mediated the triflumezopyrim susceptibility in the small brown planthopper (SBPH), Laodelphax striatellus (Fallén). The tissue expression profiles showed that CYP417A2 was highly expressed in fat body. CYP417A2 was significantly up-regulated at 12, 36, 60, 84 and 108 h after the triflumezopyrim treatment. RNA interference (RNAi) against CYP417A2 significantly increased triflumezopyrim susceptibility in SBPH. According to the prediction by miRanda and TargetScan software, three miRNAs were indicated to bind to CYP417A2. However, when oversupply of agomir, only two miRNAs, PC-3p-625_4405 and PC-5p-3991_515, significantly increased the susceptibility to triflumezopyrim and decreased CYP417A2 levels. Furthermore, PC-5p-3991_515 was confirmed to be involved in the post-transcriptional regulation of CYP417A2 by dual luciferase reporter assay. Meanwhile, PC-5p-3991_515 was co-localized with CYP417A2 in the midgut in situ hybridization. CONCLUSION Our findings revealed that the novel microRNA, PC-5p-3991_515, post-transcriptionally regulated CYP417A2 expression, which then mediated the triflumezopyrim susceptibility in SBPH. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yuanxue Yang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Aiyu Wang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Chao Xue
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Honglin Tian
- Institute of Maize, Chongqing Academy of Agricultural Sciences, Chongqing, China
| | - Yun Zhang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Maolin Zhou
- Institute of Maize, Chongqing Academy of Agricultural Sciences, Chongqing, China
| | - Ming Zhao
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Zewen Liu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Jianhua Zhang
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, China
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Liu XY, Li K, Pan D, Dou W, Yuan GR, Wang JJ. Cross-resistance, inheritance and biochemical mechanism of abamectin resistance in a field-derived strain of the citrus red mite, Panonychus citri (Acari: Tetranychidae). PEST MANAGEMENT SCIENCE 2024; 80:1258-1265. [PMID: 37889506 DOI: 10.1002/ps.7855] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND The citrus red mite, Panonychus citri (McGregor), a global pest of citrus, has developed different levels of resistance to various acaricides in the field. Abamectin is one of the most important insecticides/acaricides worldwide, targetting a wide number of insect and mite pests. The evolution of abamectin resistance in P. citri is threatening the sustainable use of abamectin for mite control. RESULTS The abamectin resistant strain (NN-Aba), derived from a field strain NN by consistent selection with abamectin, showed 4279-fold resistance to abamectin compared to a relatively susceptible strain (SS) of P. citri. Cross-resistance of NN-Aba was observed between abamectin and emamectin benzoate, pyridaben, fenpropathrin and cyflumetofen. Inheritance analyses indicated that abamectin resistance in the NN-Aba strain was autosomal, incompletely recessive and polygenic. The synergy experiment showed that abamectin toxicity was synergized by piperonyl butoxide (PBO), diethyl maleate (DEM) and tributyl phosphorotrithiotate (TPP) in the NN-Aba strain, and synergy ratios were 2.72-, 2.48- and 2.13-fold, respectively. The glutathione-S-transferases activity in the NN-Aba strain were significantly increased by 2.08-fold compared with the SS strain. CONCLUSION The abamectin resistance was autosomal, incompletely recessive and polygenic in P. citri. The NN-Aba strain showed cross-resistance to various acaricides with different modes of action. Metabolic detoxification mechanism participated in abamectin resistance in NN-Aba strain. These findings provide useful information for resistance management of P. citri in the field. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xun-Yan Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Ke Li
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Deng Pan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Guo-Rui Yuan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing, China
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Li W, Yang W, Shi Y, Yang X, Liu S, Liao X, Shi L. Comprehensive analysis of the overexpressed cytochrome P450-based insecticide resistance mechanism in Spodoptera litura. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132605. [PMID: 37748309 DOI: 10.1016/j.jhazmat.2023.132605] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/27/2023]
Abstract
Cytochrome P450s play critical roles in the metabolic resistance of insecticides in insects. Previous findings showed that enhanced P450 activity was an important mechanism mediating indoxacarb resistance, and multiple P450 genes were upregulated in indoxacarb resistant strains of Spodoptera litura. However, the functions of these P450 genes in insecticide resistance remain unknown. Here, the P450 inhibitor PBO effectively decreased the resistance of S. litura to indoxacarb. Ten upregulated P450 genes were characterized, all of which were overexpressed in response to indoxacarb induction. Knockdown of nine P450 genes decreased cell viability against indoxacarb, and further silencing of three genes (CYP339A1, CYP340G2, CYP321A19) in larvae enhanced the sensitivity to indoxacarb. Transgenic overexpression of these three genes increased resistance to indoxacarb in Drosophila melanogaster. Moreover, molecular modeling and docking predicted that these three P450 proteins could bind tightly to indoxacarb and N-decarbomethoxylated metabolite (DCJW). Interestingly, these three P450 genes may also mediate cross-resistance to chlorantraniliprole, λ-cyhalothrin and imidacloprid. Additionally, heterologous expression and metabolic assays confirmed that three recombinant P450s could effectively metabolize indoxacarb and DCJW. This study strongly demonstrates that multiple overexpressed mitochondrial and microsomal P450 genes were involved in insecticide resistance in S. litura.
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Affiliation(s)
- Wenlin Li
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Wen Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Yao Shi
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Xiyu Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Shuangqing Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Xiaolan Liao
- College of Plant Protection, Hunan Agricultural University, Changsha, China.
| | - Li Shi
- College of Plant Protection, Hunan Agricultural University, Changsha, China.
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Li Z, Wang X, Guo L, Yin T, Liu D, Liu S, You X, Xia X. Risk of resistance and the metabolic resistance mechanism of Laodelphax striatellus (Fallén) to cyantraniliprole. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105685. [PMID: 38072542 DOI: 10.1016/j.pestbp.2023.105685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 12/18/2023]
Abstract
Cyantraniliprole is a highly effective diamide insecticide used to control of Laodelphax striatellus (Fallén). This study aimed to assess the insecticide resistance risk of L. striatellus and its metabolic resistance mechanisms. After 25 continuous generations of selection, the resistance of L. striatellus to cyantraniliprole increased by 17.14-fold. The realistic heritability of resistance was 0.0751. After successive rearing for five generations without exposure to insecticides, the resistance ratio for the resistant strain of L. striatellus decreased by 3.47-fold, and the average resistance decline rate per generation was 0.0266. Cyantraniliprole-resistant strains did not exhibit cross-resistance to triflumezopyrim, pymetrozine, flonicamid, sulfoxaflor, dinotefuran, clothianidin, thiamethoxam, nitenpyram, or imidacloprid. Compared to those of the sensitive strain, the 2nd, 3rd, and 4th instars, nymphal stage durations, total preoviposition period, and average generation time of the resistant strain were markedly reduced. Furthermore, the activity of cytochrome P450 monooxygenase (P450) and carboxylesterase (CarE) were markedly increased. The upregulation of CYP419A1v2 expression was most evident among the P450 genes, with a 6.10-fold increase relative to that in the sensitive strain. The CarE gene LsCarE5 was significantly upregulated by 1.94-fold compared with that in the sensitive strain. With the continuous use of cyantraniliprole, L. striatellus may develop resistance to this insecticide. This resistance may be related to the increase in metabolic enzyme activities regulated by the overexpression of P450 and CarE genes.
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Affiliation(s)
- Zhaoge Li
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Xueting Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Longzhi Guo
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Tao Yin
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Dongmei Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Shuang Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Xingmei You
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China
| | - Xiaoming Xia
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, PR China.
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7
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Yang XY, Yang W, Zhao H, Wang BJ, Shi Y, Wang MY, Liu SQ, Liao XL, Shi L. Functional analysis of UDP-glycosyltransferase genes conferring indoxacarb resistance in Spodoptera litura. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 196:105589. [PMID: 37945240 DOI: 10.1016/j.pestbp.2023.105589] [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] [Received: 06/26/2023] [Revised: 08/10/2023] [Accepted: 08/24/2023] [Indexed: 11/12/2023]
Abstract
UDP-glycosyltransferase (UGT) is the major detoxification enzymes of phase II involved in xenobiotics metabolism, which potentially mediates the formation of insect resistance. Previous transcriptome sequencing studies have found that several UGT genes were upregulated in indoxacarb resistant strains of Spodoptera litura, but whether these UGT genes were involved in indoxacarb resistance and their functions in resistance were unclear. In this study, the UGTs inhibitor, 5-nitrouracil, enhanced the toxicity of indoxacarb against S. litura, preliminarily suggesting that UGTs were participated in indoxacarb resistance. Two UGT genes, UGT33J17 and UGT41D10 were upregulated in the resistant strains and could be induced by indoxacarb. Alignment of UGT protein sequences revealed two conserved donor-binding regions with several key residues that interact with catalytic sites and sugar donors. Further molecular modeling and docking analysis indicated that two UGT proteins were able to stably bind indoxacarb and N-decarbomethoxylated metabolite (DCJW). Furthermore, knockdown of UGT33J17 and UGT41D10 decreased viability of Spli-221 cells and enhanced susceptibility of larvae to indoxacarb. Transgenic overexpression of these genes reduced the toxicity of indoxacarb in Drosophila melanogaster. This work revealed that upregulation of UGT genes significantly contributes to indoxacarb resistance in S. litura, and is of great significance for the development of integrated and sustainable management strategies for resistant pests in the field.
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Affiliation(s)
- Xi-Yu Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Wen Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Hui Zhao
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Bing-Jie Wang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Yao Shi
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Meng-Yu Wang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Shuang-Qing Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Xiao-Lan Liao
- College of Plant Protection, Hunan Agricultural University, Changsha, China.
| | - Li Shi
- College of Plant Protection, Hunan Agricultural University, Changsha, China.
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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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Wang A, Yang Y, Zhou Y, Zhang Y, Xue C, Zhao Y, Zhao M, Zhang J. A microRNA, PC-5p-30_205949, regulates triflumezopyrim susceptibility in Laodelphax striatellus (Fallén) by targeting CYP419A1 and ABCG23. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 192:105413. [PMID: 37105639 DOI: 10.1016/j.pestbp.2023.105413] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
MicroRNAs (miRNAs) are known to be important post-transcriptional regulators of gene expression and have been shown to be associated with insecticide resistance in insects. In this research, we show that a miRNA, PC-5p-30_205949, is involved in triflumezopyrim susceptibility via regulating expressive abundance of cytochrome P450 CYP419A1 and ATP-binding cassette transporters ABCG23 in the small brown planthopper (SBPH), Laodelphax striatellus (Fallén). Triflumezopyrim treatment significantly reduced the abundance of PC-5p-30_205949, feeding of agomir-PC-5p-30_205949 significantly increased the sensitivity of SBPH to triflumezopyrim, and its spatiotemporal expression profiles showed that PC-5p-30_205949 were expressed at all developmental stages and were highly expressed in head tissue. By software prediction and dual luciferase reporter assay, the target genes of PC-5p-30_205949 were identified as two detoxification metabolism genes CYP419A1 and ABCG23. The relative expressions of CYP419A1 and ABCG23 were significantly up-regulated after 24 h, 48 h and 72 h with triflumezopyrim exposure. CYP419A1 was highly expressed in the 4th-instar nymphs and male adults, with the highest expression level in fat body. ABCG23 was highly expressed in female adults, and had the highest expression in head. Furthermore, silencing of CYP419A1 and ABCG23 by RNA interference significantly increased the mortality of SBPH to triflumezopyrim, and molecular docking showed that CYP419A1 and ABCG23 could stably bind to triflumezopyrim with binding free energies of -171.5622 and - 103.3402 kcal mol-1, respectively. These results suggest that SBPH has a strategy to enhance the resistance to triflumezopyrim by attenuating the expression of PC-5P-30_205949, thereby activating the detoxification metabolic pathway by targeting CYP419A1 and ABCG23.
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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
| | - 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
| | - Yun Zhou
- Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan, 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
| | - 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
| | - 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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Kil EJ, Kim D. The small brown planthopper (Laodelphax striatellus) as a vector of the rice stripe virus. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2023; 112:e21992. [PMID: 36575628 DOI: 10.1002/arch.21992] [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: 09/15/2022] [Revised: 11/15/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
The small brown planthopper, Laodelphax striatellus, is a destructive pest insect found in rice fields. L. striatellus not only directly feeds on the phloem sap of rice but also transmits various viruses, such as rice stripe virus (RSV) and rice black-streaked dwarf virus, resulting in serious loss of rice production. RSV is a rice-infecting virus that is found mainly in Korea, China, and Japan. To develop novel strategies to control L. striatellus and L. striatellus-transmitted viruses, various studies have been conducted, based on vector biology, interactions between vectors and pathogens, and omics, including transcriptomics, proteomics, and metabolomics. In this review, we discuss the roles of saliva proteins during phloem sap-sucking and virus transmission, the diversity and role of the microbial community in L. striatellus, the profile and molecular mechanisms of insecticide resistance, classification of L. striatellus-transmitted RSV, its host range and symptoms, its genome composition and roles of virus-derived proteins, its distribution, interactions with L. striatellus, and resistance and control, to suggest future directions for integrated pest management to control L. striatellus and L. striatellus-transmitted viruses.
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Affiliation(s)
- Eui-Joon Kil
- Department of Plant Medicals, Andong National University, Andong, Republic of Korea
| | - Donghun Kim
- Department of Entomology, Kyungpook National University, Sangju, Republic of Korea
- Department of Vector Entomology, Kyungpook National University, Sangju, Republic of Korea
- Research Institute of Invertebrate Vector, Kyungpook National University, Sangju, Republic of Korea
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11
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Wen S, Liu C, Wang X, Wang Y, Liu C, Wang J, Xia X. Resistance selection of triflumezopyrim in Laodelphax striatellus (fallén): Resistance risk, cross-resistance and metabolic mechanism. Front Physiol 2022; 13:1048208. [PMID: 36523557 PMCID: PMC9745130 DOI: 10.3389/fphys.2022.1048208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/12/2022] [Indexed: 12/25/2023] Open
Abstract
The risk assessment and resistance mechanisms of insecticide resistance are critical for resistance management strategy before a new insecticide is widely used. Triflumezopyrim (TFM) is the first commercialized mesoionic insecticide, which can inhibit nicotinic acetylcholine receptor with high-performance against the small brown planthopper (SBPH), Laodelphax striatellus (Fallén). In our study, the resistance of SBPH to TFM increased 26.29-fold, and the actual heritability of resistance was 0.09 after 21 generations of continuous selection by TFM. After five generations of constant feeding under insecticide-free conditions from F16 generation, the resistance level decreased 2.05-fold, and the average resistance decline rate per generation was 0.01, but there were no statistical decline. The TFM resistant strains had no cross-resistance to imidacloprid, nitenpyram, thiamethoxam, dinotefuran, flonicamid, pymetrozine, and chlorfenapyr. The third and fifth nymphal stage duration, pre-adult stage, adult preoviposition period, longevity, emergence rate, and hatchability of the resistant strain were significantly lower than those of the susceptible strain, while the female-male ratio was considerably increased. The fitness cost was 0.89. Further, cytochrome P450 monooxygenase (P450) and carboxylesterase (CarE) activities were markedly increased, but only the enzyme inhibitor piperonyl butoxide (PBO) had a significant synergistic effect on the resistant strain. The expression of CYP303A1, CYP4CE2, and CYP419A1v2 of P450 genes was significantly increased. SBPH has a certain risk of resistance to TFM with continuous application. The TFM resistance may be due to the increased activity of P450 enzyme regulated by the overexpression of P450 genes.
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Affiliation(s)
- Shengfang Wen
- College of Plant Protection, Shandong Agricultural University, Taian, China
- College of Resources and Environment, Shandong Agricultural University, Taian, China
| | - Chang Liu
- College of Plant Protection, Shandong Agricultural University, Taian, China
| | - Xueting Wang
- College of Plant Protection, Shandong Agricultural University, Taian, China
| | - Youwei Wang
- College of Plant Protection, Shandong Agricultural University, Taian, China
| | - Chao Liu
- College of Plant Protection, Shandong Agricultural University, Taian, China
| | - Jinhua Wang
- College of Resources and Environment, Shandong Agricultural University, Taian, China
| | - Xiaoming Xia
- College of Plant Protection, Shandong Agricultural University, Taian, China
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