1
|
Xiao Y, Wang X, Li Z, Lei C, Wang S. Insecticidal potential and risk assessment of diamide pesticides against Spodoptera frugiperda in maize crops. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116682. [PMID: 39002380 DOI: 10.1016/j.ecoenv.2024.116682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
The effectiveness, tolerance, and safety of pesticides must be established before their scientific or rational. This study evaluates the field control efficacy of broflanilide, tetraniliprole, and chlorantraniliprole in combating Spodoptera frugiperda in maize crops, as well as the resistance of S. frugiperda to these three diamide pesticides after exposure. By assessing field control efficiency, toxicity, effects on development and reproduction, and detoxification enzyme activity of these diamide pesticides on S. frugiperda, highlights broflanilide's significant insecticidal potential. A highly sensitive and efficient method using QuEChERS/HPLCMS/MS was developed to simultaneously detect residues of these three pesticides on maize. Initial concentrations of broflanilide, tetraniliprole, and chlorantraniliprole ranged from 2.13 to 4.02 mg/kg, with their respective half-lives varying between 1.23 and 1.51 days. Following foliar application, by the time of harvest, the terminal residue concentrations of these pesticides were all under 0.01 mg/kg. Chronic dietary intake risk assessments and cumulative chronic dietary exposure for three pesticides indicated that the general population's terminal residue concentration was within acceptable limits. Not only does this research provide valuable insights into field control efficiency, insecticidal effects, resistance, residues, and risk assessment results of broflanilide, tetraniliprole, and chlorantraniliprole on maize, but additionally, it also paves the way for setting suitable Maximum Residue Limits (MRLs) values based on pre-harvest interval values, rational dosage, and application frequency.
Collapse
Affiliation(s)
- Yong Xiao
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, PR China
| | - Xiaonan Wang
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, PR China
| | - Zhenyu Li
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, PR China
| | - Chunmei Lei
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, PR China
| | - Siwei Wang
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, PR China.
| |
Collapse
|
2
|
Zhang Y, Ju F. Uninheritable but Widespread Bacterial Symbiont Enterococcus casseliflavus Mediates Detoxification of the Insecticide Chlorantraniliprole in the Agricultural Invasive Pest Spodoptera frugiperda. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39105749 DOI: 10.1021/acs.jafc.4c02727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Host-symbiont interaction plays a crucial role in determining the host's fitness under toxic stress, as observed in numerous insect species. However, the mechanism of the symbionts involved in the detoxification of insecticides remains poorly known. In this study, through microbiome, proteomic, and genomic analysis, we identified a prevalent symbiont, Enterococcus casseliflavus EMBL-3, in a major invasive insect pest,Spodoptera frugiperda. This symbiont enhances the host's insecticide resistance to chlorantraniliprole by breaking amide bonds and dehalogenating insecticides. Complying with the increase in exposure risk of chlorantraniliprole, the E. casseliflavus isolates of insects' symbionts but not those from mammals or environmental strains showed a significant enrichment of potential chlorantraniliprole degradation genes. EMBL-3 is popular in field population insects with efficient horizontal transmission ability through cross-diet and cannibalism. This study provides a new therapeutic target for agricultural pests based on symbiont-targeted insect control for global crop protection.
Collapse
Affiliation(s)
- Yunhua Zhang
- Research Center for Industries of the Future, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Key Laboratory of Coastal Environment and Resources Research of Zhejiang Province, School of Engineering, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Center of Synthetic Biology and Integrated Bioengineering, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou ,Zhejiang Province 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou ,Zhejiang Province 310024, China
| | - Feng Ju
- Research Center for Industries of the Future, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Key Laboratory of Coastal Environment and Resources Research of Zhejiang Province, School of Engineering, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Center of Synthetic Biology and Integrated Bioengineering, Westlake University, Hangzhou ,Zhejiang Province 310030, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou ,Zhejiang Province 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou ,Zhejiang Province 310024, China
| |
Collapse
|
3
|
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.
Collapse
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.
| |
Collapse
|
4
|
Aioub AAA, Moustafa MAM, Hashem AS, Sayed S, Hamada HM, Zhang Q, Abdel-Wahab SIZ. Biochemical and genetic mechanisms in Pieris rapae (Lepidoptera: Pieridae) resistance under emamectin benzoate stress. CHEMOSPHERE 2024; 362:142887. [PMID: 39025308 DOI: 10.1016/j.chemosphere.2024.142887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/27/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
Pieris rapae (Lepidoptera: Pieridae) poses a significant threat to Brassicaceae crops, leading to substantial losses annually. Repeated insecticide applications are widely used to protect crops and increase the resistance of P. rapae. Exploring the biochemical and molecular basis of insecticide tolerance in P. rapae is crucial for achieving effective insect suppuration and implementing resistance control strategies. In our research, emamectin benzoate (EBZ) resistance was developed in P. rapae strain through selective pressure over 15 generations. Moreover, the biochemical mechanisms underlying resistance to EBZ and its potential cross-resistance to other insecticides were studied. Additionally, the expression levels of cytochrome P450 (CYP450) and glutathione-s-transferase (GST) genes in P. rapae were quantitatively assessed upon exposure to EBZ using real-time PCR. Our data exhibited that the LC50 value of susceptible strain (Sus) and EBZ resistance strain (EBZ-R) were 0.009 and 8.09 mg/L, with a resistance ratio (RR) reaching 898.8-fold. The EBZ-R stain displayed notably low cross-resistance to lambda-cyhalothrin, spinetoram, and cypermethrin. However, it demonstrated a moderate level of cross-resistance to deltamethrin. Conversely, no cross-resistance was noted to chlorantraniliprole and indoxacarb. Notably, enzyme inhibitors of detoxification enzymes revealed that piperonyl butoxide (PBO) and diethyl maleate (DEM) enhanced the EBZ toxicity to the resistant strain, indicating the potential involvement of CYP450 and GST in avermectin resistance. A remarkable enhancement in CYP450 and GST activity was observed in the EBZ-R stain. CYP450 and GST genes are upregulated in the EBZ-R stain compared to the Sus strain, which serves as a basis for comprehending the mechanism behind P. rapae resistance to EBZ. The molecular docking analysis demonstrated that EBZ has a high binding affinity with CYP6AE120 and PrGSTS1 with docking energy values of -20.19 and -22.57 kcal/mol, respectively. Our findings offer valuable insights into crafting efficient strategies to monitor and manage resistance in P. rapae populations in Egypt.
Collapse
Affiliation(s)
- Ahmed A A Aioub
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Zhejiang University, Hangzhou, Zhejiang 310058, China; Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Moataz A M Moustafa
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Ahmed S Hashem
- Stored Product Pests Research Department, Plant Protection Research Institute, Agricultural Research Center, Sakha, Kafr El-Sheikh 33717, Egypt
| | - Samy Sayed
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hanan M Hamada
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Qichun Zhang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Sarah I Z Abdel-Wahab
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Lu Z, Lu K, Li Y, Xiao T, Zhou Z, Chen Y, Liu J, Sun Z, Gui F. Screening and functional validation of the core detoxification genes conferring broad-spectrum response to insecticides in Spodoptera frugiperda. PEST MANAGEMENT SCIENCE 2024; 80:3491-3503. [PMID: 38426637 DOI: 10.1002/ps.8054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/13/2024] [Accepted: 03/01/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Fall armyworm, Spodoptera frugiperda, a formidable agricultural pest, has developed resistance to various synthetic insecticides. However, how S. frugiperda utilizes its limited energy and resources to deal with various insecticides remains largely unexplored. RESULTS We utilized transcriptome sequencing to decipher the broad-spectrum adaptation mechanism of S. frugiperda to eight insecticides with distinct modes-of-action. Analysis of the Venn diagram revealed that 1014 upregulated genes and 778 downregulated genes were present in S. frugiperda treated with at least five different insecticides, compared to the control group. Exposure to various insecticides led to the significant upregulation of eight cytochrome P450 monooxygenases (P450s), four UDP glucosyltransferases (UGTs), two glutathione-S-transferases (GSTs) and two ATP-binding cassette transporters (ABCs). Among them, the sfCYP340AD3 and sfCYP4G74 genes were demonstrated to respond to stress from six different insecticides in S. frugiperda, as evidenced by RNA interference and toxicity bioassays. Furthermore, homology modeling and molecular docking analyses showed that sfCYP340AD3 and sfCYP4G74 possess strong binding affinities to a variety of insecticides. CONCLUSION Collectively, these findings showed that S. frugiperda utilizes a battery of core detoxification genes to cope with the exposure of synthetic insecticides. This study also sheds light on the identification of efficient insecticidal targets gene and the development of resistance management strategies in S. frugiperda, thereby facilitating the sustainable control of this serious pest. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zhihui Lu
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Kai Lu
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Yahong Li
- Yunnan Plant Protection and Quarantine Station, Kunming, China
| | - Tianxiang Xiao
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Zhonglin Zhou
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yaping Chen
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Jianhui Liu
- Yuxi Plant Protection and Quarantine Station in Yunnan, Yuxi, China
| | - Zhongxiang Sun
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Furong Gui
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| |
Collapse
|
7
|
Zaidi SWN, Saddiq B, Afzal MBS, Banazeer A, Serrão JE, Farooq U, Baloch MAZ. First report of resistance in Spodoptera frugiperda (Lepidoptera: Noctuidae) to lambda-cyhalothrin from Pakistan: baseline susceptibility, selection, occurrence of cross-resistance, realized heritability, and inheritance mode of resistance. JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae132. [PMID: 38936423 DOI: 10.1093/jee/toae132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/28/2024] [Accepted: 06/09/2024] [Indexed: 06/29/2024]
Abstract
Fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is a global pest causing damage to several crops. However, its management using chemical control is a challenge due to its capacity to evolve resistance to insecticides. After 6 generations of selection with lambda-cyhalothrin, the LC50 for the insecticide-resistant strain (Lambda-Sel) was 486 ppm, higher than that of the field strain (FAW-MUL) (7.5 ppm), susceptible laboratory strain (Lab-PK) (0.46 ppm), and laboratory unselected strain (UNSEL) (5.26 ppm). Laboratory selection with lambda-cyhalothrin increased resistance from 16.3- to 1056.52-fold and 1.43- to 92.4-fold to lambda-cyhalothrin compared to Lab-PK and UNSEL strains, respectively. The selected strain of S. frugiperda (Lambda-Sel) presented low cross-resistance to chlorpyrifos, moderate to deltamethrin and indoxacarb, very low to spinosad, and no cross-resistance to emamectin benzoate. The realized heritability (h2) of lambda-cyhalothrin resistance in the Lambda-Sel strain was very high (0.88). The reciprocal cross progenies of F1 (Lambda-Sel ♀ × Lab-PK ♂), F1' (Lambda-Sel ♂ × Lab-PK ♀), BC1 (F1 ♀ × Lambda-Sel ♂), and BC2 (F1 ♀ × Lab-PK ♂) showed high resistance ratios of 545.64-, 396.52-, 181.18-, and 146.54-fold, respectively compared to Lab-PK. The degree of dominance values for lambda-cyhalothrin in F1 and F1' indicates incompletely dominant resistance. The difference between observed and expected mortality in backcross populations (BC1 and BC2) revealed a polygenic resistance. In conclusion, the resistance to lambda-cyhalothrin was autosomal, incompletely dominant, and polygenic. These findings provide new insights for insect resistance management strategies to mitigate the occurrence of resistance in this global pest.
Collapse
Affiliation(s)
- Sayed Wasif Naseer Zaidi
- Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Southern Punjab, Pakistan
| | - Bushra Saddiq
- Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Southern Punjab, Pakistan
| | | | - Ansa Banazeer
- Beekeeping and Hill Fruit Pests Research Station, Rawalpindi, Punjab, Pakistan
| | | | - Umar Farooq
- Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Southern Punjab, Pakistan
| | - Muhammad Affan Zahid Baloch
- Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Southern Punjab, Pakistan
| |
Collapse
|
8
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Abdelhamid AA, Gad MA. Synthesis and Biological Evaluation of Benzamide Compounds as Insecticides Agents Against Spodoptera Frugiperda (Lepidoptera: Noctuidae). Chem Biodivers 2024:e202400948. [PMID: 38899798 DOI: 10.1002/cbdv.202400948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024]
Abstract
Due to its severe damage, Spodoptera frugiperda is receiving attention as one of the biggest dangers to world food security. Although there are numerous insecticides that are widely and successfully used to control S. frugiperda, they do not have an immediate effect. In our work focusing for synthesized twelve novel benzamide derivatives and examined their insecticidal effectiveness against S. frugiperda larvae in their second & fourth larvae instars, with the aim of further improving the insecticidal activity based on combination principles. Several spectroscopic methods, including elemental analysis, NMR & infrared spectroscopy, were employed for confirming the structure of the newly designed products. It has been discovered that most compounds show good of promising efficacy. With an LC50 of 24.8 mg/L for larvae in the second instar & 56.2 mg/L for larvae in the fourth instar, compound 23 was the most active. Among all compounds 11, 22 and 20 exhibited excellent results. Furthermore, a number of biological and histopathological properties of the demonstration compounds of the produced goods under laboratory conditions were also examined. This work further demonstrates the anti-proliferation of S. frugiperda and offers fresh ideas for the manufacture of benzamide derivatives.
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - M Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, 1988, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agricultural Research Center, 12619, Giza, Egypt
| |
Collapse
|
9
|
Zhou X, Yuan H, Ye N, Rong C, Li Y, Jiang X, Cao H, Huang Y. CYP4G subfamily genes mediate larval integument development in Spodoptera frugiperda. JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae115. [PMID: 38783401 DOI: 10.1093/jee/toae115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024]
Abstract
Cytochrome P450 (CYP) 4G subfamily is closely related to the synthesis of cuticular hydrocarbons, leading to the enhanced desiccation and insecticide resistance of pests. However, functions of CYP4Gs in larval integument development remain unknown in Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), which is a major transboundary migratory pest and become a common pest in China. On the basis of the genome and transcriptome datasets of S. frugiperda, CYP4G74, CYP4G75, CYP4G108, and CYP4G109 were identified, which contained the conserved domains of P450s and CYP4Gs. The spatial and temporal expression analysis showed that CYP4G74 and CYP4G75 were significantly highly expressed in adults and larval integuments, while CYP4G108 and CYP4G109 had low expressions in larval integuments. After silencing CYP4G74 and CYP4G75 by RNA interference, abnormal integument development occurred in larvae, some of which became smaller and dead, indicating important roles of CYP4G74 and CYP4G75 in the synthesis and development of integuments. The results clarify the functions of CYP4Gs in S. frugiperda and provide potential targets for the control of this pest.
Collapse
Affiliation(s)
- Xue Zhou
- Key Laboratory of Agro-Products Quality and Biosafety (Ministry of Education), Anhui Agricultural University, Hefei 230036, China
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Hao Yuan
- Key Laboratory of Agro-Products Quality and Biosafety (Ministry of Education), Anhui Agricultural University, Hefei 230036, China
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Nuojun Ye
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Changfeng Rong
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Yiyu Li
- Institute of New Rural Development, Anhui Agricultural University, Hefei 230036, China
| | - Xingchuan Jiang
- Key Laboratory of Agro-Products Quality and Biosafety (Ministry of Education), Anhui Agricultural University, Hefei 230036, China
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Haiqun Cao
- Key Laboratory of Agro-Products Quality and Biosafety (Ministry of Education), Anhui Agricultural University, Hefei 230036, China
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Yong Huang
- Key Laboratory of Agro-Products Quality and Biosafety (Ministry of Education), Anhui Agricultural University, Hefei 230036, China
- Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Wang YR, Yao Y, Chen YH, Huang C, Guo YF, Fang Y, Gao SJ, Hou YM, Wang JD. A ScWIP5 gene confers fall armyworm resistance by reducing digestive enzyme activities in sugarcane. PEST MANAGEMENT SCIENCE 2024; 80:1930-1939. [PMID: 38072905 DOI: 10.1002/ps.7925] [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: 09/13/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND The fall armyworm, Spodoptera frugiperda, is one of the most dangerous pests to various crops. As the most crucial sugar crop, sugarcane is also constantly threatened by these pests. Plant wound-induced proteinase inhibitors (WIP) are natural defense proteins that play important roles in the defense system against insect attack. Breeding for resistance would be the best way to improve the variety characteristics and productivity of sugarcane. Screening and verification for potential plant endogenous insect-resistant genes would greatly improve the insect-resistant breeding progress of sugarcane. RESULTS A sugarcane WIP5 gene (ScWIP5) was up-regulated 536 times after insect feeding treatment on previous published transcriptome databases. ScWIP5 was then cloned and its potential role in sugarcane resistance to fall armyworm evaluated by construction of transgenic Nicotiana benthamiana. The toxicity of ScWIP5 transgenic N. benthamiana to fall armyworm showed lower weight gain and higher mortality compared to wild-type N. benthamiana feeding group. Furthermore, the concentration of JA and NbAOC, NbAOS, and NbLOX from the Jasmin acid biosynthesis pathway was significantly induced in ScWIP5 transgenic N. benthamiana compared to the control. In addition, digestive enzyme actives from the insect gut were also evaluated, and trypsin and cathepsin were significantly lower in insects fed with ScWIP5 transgenic N. benthamiana. CONCLUSION These results indicate that ScWIP5 might enhance insect resistance by increasing JA signal transduction processes and reducing insect digestive enzyme activities, thus impacting insect growth and development. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Ya-Ru Wang
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
- Xianghu Laboratory, Hangzhou, People's Republic of China
| | - Yang Yao
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - Yao-Hui Chen
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - Cheng Huang
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - Yan-Fang Guo
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - Yong Fang
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agriculture science, Changsha, People's Republic of China
| | - San-Ji Gao
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - You-Ming Hou
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| | - Jin-da Wang
- National Engineering Research Center of Sugarcane, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agricultural and Forestry University, Fuzhou, People's Republic of China
| |
Collapse
|
12
|
Lv S, Guan D, Wei J, Ge H, Zhou X, Zheng Y, Qian K, Wang J. Low concentrations of cyantraniliprole negatively affects the development of Spodoptera frugiperda by disruption of ecdysteroid biosynthesis and carbohydrate and lipid metabolism. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 200:105827. [PMID: 38582591 DOI: 10.1016/j.pestbp.2024.105827] [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: 12/10/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 04/08/2024]
Abstract
In addition to the acute lethal toxicity, insecticides might affect population dynamics of insect pests by inducing life history trait changes under low concentrations, however, the underlying mechanisms remain not well understood. Here we examined systemic impacts on development and reproduction caused by low concentration exposures to cyantraniliprole in the fall armyworm (FAW), Spodoptera frugiperda, and the putative underlying mechanisms were investigated. The results showed that exposure of third-instar larvae to LC10 and LC30 of cyantraniliprole significantly extended larvae duration by 1.46 and 5.41 days, respectively. Treatment with LC30 of cyantraniliprole significantly decreased the pupae weight and pupation rate as well as the longevity, fecundity and egg hatchability of female adults. Consistently, we found that exposure of FAW to LC30 cyantraniliprole downregulated the mRNA expression of four ecdysteroid biosynthesis genes including SfNobo, SfShd, SfSpo and SfDib and one ecdysone response gene SfE75 in the larvae as well as the gene encoding vitellogenin (SfVg) in the female adults. We also found that treatment with LC30 of cyantraniliprole significantly decreased the whole body levels of glucose, trehalose, glycogen and triglyceride in the larvae. Our results indicate that low concentration of cyantraniliprole inhibited FAW development by disruption of ecdysteroid biosynthesis as well as carbohydrate and lipid metabolism, which have applied implications for the control of FAW.
Collapse
Affiliation(s)
- Shushu Lv
- 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
| | - Xiaoyang Zhou
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Yang Zheng
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Kun Qian
- College of Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jianjun Wang
- 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.
| |
Collapse
|
13
|
Posos-Parra O, Mota-Sanchez D, Pittendrigh BR, Wise JC, DiFonzo CD, Patterson E. Characterization of the inheritance of field-evolved resistance to diamides in the fall armyworm (Spodoptera frugiperda) (Lepidoptera: Noctuidae) population from Puerto Rico. PLoS One 2024; 19:e0295928. [PMID: 38394153 PMCID: PMC10889863 DOI: 10.1371/journal.pone.0295928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/29/2023] [Indexed: 02/25/2024] Open
Abstract
The fall armyworm (Spodoptera frugiperda) is one of the most destructive pests of corn. New infestations have been reported in the East Hemisphere, reaching India, China, Malaysia, and Australia, causing severe destruction to corn and other crops. In Puerto Rico, practical resistance to different mode of action compounds has been reported in cornfields. In this study, we characterized the inheritance of resistance to chlorantraniliprole and flubendiamide and identified the possible cross-resistance to cyantraniliprole and cyclaniliprole. The Puerto Rican (PR) strain showed high levels of resistance to flubendiamide (RR50 = 2,762-fold) and chlorantraniliprole (RR50 = 96-fold). The inheritance of resistance showed an autosomal inheritance for chlorantraniliprole and an X-linked inheritance for flubendiamide. The trend of the dominance of resistance demonstrated an incompletely recessive trait for H1 (♂ SUS × ♀ PR) × and an incompletely dominant trait for H2 (♀ SUS × ♂ PR) × for flubendiamide and chlorantraniliprole. The PR strain showed no significant presence of detoxification enzymes (using synergists: PBO, DEF, DEM, and VER) to chlorantraniliprole; however, for flubendiamide the SR = 2.7 (DEM), SR = 3.2 (DEF) and SR = 7.6 (VER) indicated the role of esterases, glutathione S- transferases and ABC transporters in the metabolism of flubendiamide. The PR strain showed high and low cross-resistance to cyantraniliprole (74-fold) and cyclaniliprole (11-fold), respectively. Incomplete recessiveness might lead to the survival of heterozygous individuals when the decay of diamide residue occurs in plant tissues. These results highlight the importance of adopting diverse pest management strategies, including insecticide rotating to manage FAW populations in Puerto Rico and other continents.
Collapse
Affiliation(s)
- Omar Posos-Parra
- Department of Entomology, Michigan State University, East Lansing, Michigan, United States of America
| | - David Mota-Sanchez
- Department of Entomology, Michigan State University, East Lansing, Michigan, United States of America
| | - Barry R. Pittendrigh
- Department of Entomology, Purdue University, West Lafayette, Indiana, United States of America
| | - John C. Wise
- Department of Entomology, Michigan State University, East Lansing, Michigan, United States of America
| | - Christina D. DiFonzo
- Department of Entomology, Michigan State University, East Lansing, Michigan, United States of America
| | - Eric Patterson
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan, United States of America
| |
Collapse
|
14
|
Mahalle RM, Sun W, Posos-Parra OA, Jung S, Mota-Sanchez D, Pittendrigh BR, Seong KM. Identification of differentially expressed miRNAs associated with diamide detoxification pathways in Spodoptera frugiperda. Sci Rep 2024; 14:4308. [PMID: 38383681 PMCID: PMC10881993 DOI: 10.1038/s41598-024-54771-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 02/16/2024] [Indexed: 02/23/2024] Open
Abstract
The fall armyworm (FAW) Spodoptera frugiperda is a severe economic pest of multiple crops globally. Control of this pest is often achieved using insecticides; however, over time, S. frugiperda has developed resistance to new mode of action compounds, including diamides. Previous studies have indicated diamide resistance is a complex developmental process involving multiple detoxification genes. Still, the mechanism underlying the possible involvement of microRNAs in post-transcriptional regulation of resistance has not yet been elucidated. In this study, a global screen of microRNAs (miRNAs) revealed 109 known and 63 novel miRNAs. Nine miRNAs (four known and five novel) were differentially expressed between insecticide-resistant and -susceptible strains. Gene Ontology analysis predicted putative target transcripts of the differentially expressed miRNAs encoding significant genes belonging to detoxification pathways. Additionally, miRNAs are involved in response to diamide exposure, indicating they are probably associated with the detoxification pathway. Thus, this study provides comprehensive evidence for the link between repressed miRNA expression and induced target transcripts that possibly mediate diamide resistance through post-transcriptional regulation. These findings highlight important clues for further research to unravel the roles and mechanisms of miRNAs in conferring diamide resistance.
Collapse
Affiliation(s)
- Rashmi Manohar Mahalle
- Institute of Agricultural Sciences, Chungnam National University, Daejeon, Republic of Korea
| | - Weilin Sun
- Department of Entomology, Center for Urban and Industrial Pest Management, Purdue University, West Lafayette, IN, USA
| | - Omar A Posos-Parra
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Sunghoon Jung
- Department of Smart Agriculture Systems, Chungnam National University, Daejeon, Republic of Korea
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, Republic of Korea
| | - David Mota-Sanchez
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Barry R Pittendrigh
- Department of Entomology, Center for Urban and Industrial Pest Management, Purdue University, West Lafayette, IN, USA
| | - Keon Mook Seong
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, Republic of Korea.
| |
Collapse
|
15
|
Yuan X, Guo Y, Li D. Field Control Effect of Telenomus remus Nixon and Trichogramma chilonis Ishii Compound Parasitoid Balls against Spodoptera frugiperda (J. E. Smith). INSECTS 2024; 15:28. [PMID: 38249033 PMCID: PMC10816439 DOI: 10.3390/insects15010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/24/2023] [Indexed: 01/23/2024]
Abstract
Although the release of egg parasitoids has proven to be an effective strategy for the control of the fall armyworm (FAW), a single egg parasitoid, however, has exposed some deficiencies in practice, and it is worthwhile to explore whether the combination of multiple parasitoid species released can be used to control FAW by adopting an inter- or intra-specific relationship. In this study, we released compound parasitoid balls of Te. remus and Tr. chilonis in maize fields to explore the effects of combinations in different proportions of these two egg parasitoids on the control of the FAW. The results showed that the release of compound parasitoid balls improved the control effect on the FAW compared to the release of only Te. Remus (100%) and only Tr. Chilonis (100%). The treatments released with compound parasitoid balls significantly increased the egg parasitism rate against the FAW, reduced its populations, and alleviated its damage to maize as compared to the treatment with only Tr. chilonis (100%) released, whereas there was no significant difference in the egg parasitism rate and FAW populations between the treatments with the release of only Te. remus (100%) and that of compound parasitoid balls. Among the compound parasitoid balls with different proportions of egg parasitoids, the treatment with 80% Te. remus and 20% Tr. chilonis and that with 20% Te. remus and 80% Tr. chilonis could still retain more than 50% of the control effect against the FAW after 15 days of release and given the higher cost of production of Te. Remus, our results suggested that the combination of 20% Te. Remus and 80% Tr. Chilonis is a more cost-efficient ratio for the control of the FAW. Our findings may provide a new perspective for the sustainable control of the FAW.
Collapse
Affiliation(s)
| | | | - Dunsong Li
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510642, China; (X.Y.); (Y.G.)
| |
Collapse
|
16
|
Ashok K, Bhargava CN, Asokan R, Pradeep C, Kennedy JS, Manamohan M, Rai A. CRISPR/Cas9 mediated mutagenesis of the major sex pheromone gene, acyl-CoA delta-9 desaturase (DES9) in Fall armyworm Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). Int J Biol Macromol 2023; 253:126557. [PMID: 37657567 DOI: 10.1016/j.ijbiomac.2023.126557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 09/03/2023]
Abstract
The Fall armyworm, Spodoptera frugiperda is a significant global pest causing serious yield loss on several staple crops. In this regard, this pest defies several management approaches based on chemicals, Bt transgenics etc., requiring effective alternatives. Recently CRISPR/Cas9 mediated genome editing has opened up newer avenues to establish functions of various target genes before employing them for further application. The virgin female moths of S. frugiperda emit sex pheromones to draw conspecific males. Therefore, we have edited the key pheromone synthesis gene, fatty acyl-CoA Delta-9 desaturase (DES9) of the Indian population of S. frugiperda. In order to achieve a larger deletion of the DES9, we have designed two single guide RNA (sgRNA) in sense and antisense direction targeting the first exon instead of a single guide RNA. The sgRNA caused site-specific knockout with a larger deletion which impacted the mating. Crossing studies between wild male and mutant female resulted in no fecundity, while fecundity was normal when mutant male crossed with the wild female. This indicates that mating disruption is stronger in females where DES9 is mutated. The current work is the first of its kind to show that DES9 gene editing impacted the likelihood of mating in S. frugiperda.
Collapse
Affiliation(s)
- Karuppannasamy Ashok
- ICAR-Indian Institute of Horticultural Research, Bengaluru 560089, Karnataka, India; Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India.
| | - Chikmagalur Nagaraja Bhargava
- ICAR-Indian Institute of Horticultural Research, Bengaluru 560089, Karnataka, India; University of Agricultural Sciences, Bengaluru 560065, Karnataka, India
| | - Ramasamy Asokan
- ICAR-Indian Institute of Horticultural Research, Bengaluru 560089, Karnataka, India.
| | - Chalapathi Pradeep
- ICAR-Indian Institute of Horticultural Research, Bengaluru 560089, Karnataka, India; University of Agricultural Sciences, Bengaluru 560065, Karnataka, India
| | | | | | - Anil Rai
- ICAR - Indian Agricultural Statistics Research Institute, New Delhi 110012, India
| |
Collapse
|
17
|
Cao W, Zhang F, Li H, Zhang Y, Zhang Y, Zhang W, Guo X, Dong L, Li H, Zeng D, Li X, Yang X. A short neuropeptide F analog (sNPF), III-2 may particularly regulate juvenile hormone III to influence Spodoptera frugiperda metamorphosis and development. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105653. [PMID: 38072528 DOI: 10.1016/j.pestbp.2023.105653] [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: 08/05/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 12/18/2023]
Abstract
Allatostatin (AS) or Allatotropin (AT) is a class of insect short neuropeptide F (sNPF) that affects insect growth and development by inhibiting or promote the synthesis of juvenile hormone (JH) in different insects. III-2 is a novel sNPF analog derived from a group of nitroaromatic groups connected by different amino acids. In this study, we found that III-2 showed high insecticidal activity against S. frugiperda larvae with a LC50 of 18.7 mg L-1. As demonstrated by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), III-2 particularly facilitated JH III and hindered 20E synthesis in S. frugiperda. The results of RNA-Seq and quantitative real-time polymerase chain reaction (qPCR) showed that III-2 treatment promoted the expression of key genes such as SfCYP15C1 in JH synthesis pathway and inhibited the expression of SfCYP314A1 and other genes in the 20E synthetic pathway. Significant differences were also observed in the expression of the genes related to cuticle formation. We report for the first time that sNPF compounds specifically interfere with the synthesis and secretion of a certain JH in insects, thus affecting the ecdysis and growth of insects, and leading to death. This study may provide a new plant conservation concept for us to seek the targeted control of certain insects based on specific interference with different JH.
Collapse
Affiliation(s)
- Wenjing Cao
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Fu Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Haolin Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Yimeng Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yongheng Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Wenjie Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Xiaxia Guo
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Linxi Dong
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Honghong Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Dongqiang Zeng
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Xuesheng Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China.
| | - Xinling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
18
|
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.
Collapse
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
| |
Collapse
|
19
|
Yu Z, Huang Y, Cheng J, Li K, Hong Z, Ren J, Yuan H, Tang L, Wang Z, Fan Z. 3D-QSAR Combination with Molecular Dynamics Simulations to Effectively Design the Active Ryanodine Receptor Agonists against Spodoptera frugiperda. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16504-16520. [PMID: 37902622 DOI: 10.1021/acs.jafc.3c05223] [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: 10/31/2023]
Abstract
Computer-aided molecular modeling was applied to design a series of Spodoptera frugiperda RyR agonists. Comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) were used to generate 3D-QSAR models. MD simulations in the complex with S. frugiperda native, mutant RyR, and mammalian RyR1 under physiological conditions were used to validate the detailed binding mechanism. Binding free energy calculation by molecular mechanics generalized surface area (MM-GBSA) explained the role of key amino acid residues in ligand-receptor binding. Therefore, 14 new compounds were effectively designed and synthesized, and a bioassay indicated that compounds A-2 and A-3 showed comparable activity to that of chloranthraniliprole with LC50 values of 0.27, 0.18, and 0.20 mg L-1, respectively, against S. frugiperda. Most target compounds also displayed good activity against Mythinma separata at 0.1 mg L-1. Molecular docking and MM-GBSA calculations demonstrated that A-3 had a better binding capacity with native and mutant S. frugiperda RyRs.
Collapse
Affiliation(s)
- Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yuting Huang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Kun Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Zeyu Hong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Jinzhou Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Haolin Yuan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhihong Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| |
Collapse
|
20
|
Ashok K, Bhargava CN, Asokan R, Pradeep C, Pradhan SK, Kennedy JS, Balasubramani V, Murugan M, Jayakanthan M, Geethalakshmi V, Manamohan M. CRISPR/Cas9 mediated editing of pheromone biosynthesis activating neuropeptide ( PBAN) gene disrupts mating in the Fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). 3 Biotech 2023; 13:370. [PMID: 37849767 PMCID: PMC10577122 DOI: 10.1007/s13205-023-03798-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/25/2023] [Indexed: 10/19/2023] Open
Abstract
The Fall armyworm, Spodoptera frugiperda, is a globally important invasive pest, primarily on corn, causing severe yield loss. Overuse of synthetic chemicals has caused significant ecological harm, and in many instances control has failed. Therefore, developing efficient, environmentally friendly substitutes for sustainable management of this pest is of high priority. CRISPR/Cas9-mediated gene editing causes site-specific mutations that typically result in loss-of-function of the target gene. In this regard, identifying key genes that govern the reproduction of S. frugiperda and finding ways to introduce mutations in the key genes is very important for successfully managing this pest. In this study, the pheromone biosynthesis activator neuropeptide (PBAN) gene of S. frugiperda was cloned and tested for its function via a loss-of-function approach using CRISPR/Cas9. Ribonucleoprotein (RNP) complex (single guide RNA (sgRNA) targeting the PBAN gene + Cas9 protein) was validated through in vitro restriction assay followed by embryonic microinjection into the G0 stage for in vivo editing of the target gene. Specific suppression of PBAN by CRISPR/Cas9 in females significantly affected mating. Mating studies between wild males and mutant females resulted in no fecundity. This was in contrast to when mutant males were crossed with wild females, which resulted in reduced fecundity. These results suggest that mating disruption is more robust where PBAN is edited in females. The behavioural bioassay using an olfactometer revealed that mutant females were less attractive to wild males compared to wild females. This study is the first of its kind, supporting CRISPR/Cas9 mediating editing of the PBAN gene disrupting mating in S. frugiperda. Understanding the potential use of these molecular techniques may help develop novel management strategies that target other key functional genes. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03798-3.
Collapse
Affiliation(s)
- Karuppannasamy Ashok
- ICAR-Indian Institute of Horticultural Research, Bangalore, Karnataka India
- Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu India
| | - Chikmagalur Nagaraja Bhargava
- ICAR-Indian Institute of Horticultural Research, Bangalore, Karnataka India
- University of Agricultural Sciences, Bangalore, Karnataka India
| | - Ramasamy Asokan
- ICAR-Indian Institute of Horticultural Research, Bangalore, Karnataka India
| | - Chalapathi Pradeep
- ICAR-Indian Institute of Horticultural Research, Bangalore, Karnataka India
- University of Agricultural Sciences, Bangalore, Karnataka India
| | - Sanjay Kumar Pradhan
- ICAR-Indian Institute of Horticultural Research, Bangalore, Karnataka India
- University of Agricultural Sciences, Bangalore, Karnataka India
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | | | | | | | | | | | | |
Collapse
|
21
|
Liu JH, Wang YM, Luo L, Qi XY, Fan YJ, Wang J, Kong XP. Chitosan-Delivered Chlorantraniliprole for Pest Control: Preparation Optimization, Deposition Behavior, and Application Potential. ACS OMEGA 2023; 8:39596-39603. [PMID: 37901562 PMCID: PMC10601435 DOI: 10.1021/acsomega.3c05428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023]
Abstract
Chitosan has emerged as a promising biopolymer carrier for the sustained release of pesticides owing to its good biocompatibility, biodegradability, and bioactivity. In this work, a controlled-release formulation of insecticide chlorantraniliprole was fabricated through coprecipitation-based synchronous encapsulation with chitosan, where the optimum preparation conditions, storage stability, deposition behavior, and application potential were investigated. Preparation of optimization data from response surface methodology showed high correlation coefficient (R2) of 0.9875 and adjusted coefficient (Radj2) of 0.9715. The resulting formulation displayed good loading content of 28.39%, high encapsulation efficiency of 75.71%, and good storage stability. Compared with the commercial suspension concentrate, the formulation exhibited better wettability and retention behaviors on plant leaves. Excitingly, effective control against one species of mealybug genus Paraputo Laing (outside the killing spectrum) on the Hippeastrum reticulatum plant was successfully achieved by spraying the controlled-release formulation at different time intervals. This work indicates the good potential of the developed formulation in expanding the application scope of chlorantraniliprole, which shows a new strategy for sustainable pest management.
Collapse
Affiliation(s)
- Jun-Hao Liu
- College
of Plant Health and Medicine, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Yi-Meng Wang
- College
of Plant Health and Medicine, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Lan Luo
- College
of Plant Health and Medicine, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Xin-Yue Qi
- College
of Chemistry and Pharmacy, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Yin-Jun Fan
- College
of Plant Health and Medicine, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Juan Wang
- College
of Chemistry and Pharmacy, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| | - Xiang-Ping Kong
- College
of Chemistry and Pharmacy, Qingdao Agricultural
University, Qingdao, Shandong 266109, P. R. China
| |
Collapse
|
22
|
Yang G, Wang Y, Zhou C, Li Y, Gu Y, Li Z, Xu Z, Cheng J, Xu X. Discovery of Novel Diamides Scaffold Containing Monofluoro-acrylamides Activating the Insect Ryanodine Receptor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14137-14150. [PMID: 37733789 DOI: 10.1021/acs.jafc.3c02737] [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: 09/23/2023]
Abstract
The research and development of organofluorine chemistry has flourished; in particular, monofluoroalkene has aroused considerable interest from medicinal and organic chemists. It is a significant attempt to introduce monofluoroalkene into agrochemicals. In this study, monofluoroalkene was introduced into diamide molecules and inserted between the aliphatic amide and benzene ring, and 44 compounds have been successfully synthesized. The bioassay results showed that compounds with monofluoro-acrylamide moiety (Z-isomers) had excellent larvicidal activity against lepidopteran pests at 5 mg·L-1. The LC50 values of compounds B16, B18, and B21 against Mythimna separata were 1.02, 1.32, and 0.78 mg·L-1, respectively. 3D-QSAR analysis including the CoMFA model and the CoMSIA model was conducted to illustrate the contributions of steric, electrostatic, hydrophobic, and hydrogen bond fields on the bioactivity. Moreover, typical symptoms caused by chlorantraniliprole including dehydration, shrinkage, and blackening were also observed on the test larvae treated with monofluoro-acrylamide diamide compounds. M. separata central neurons calcium imaging experiment of compound B18 indicated that the monofluoro-acrylamide diamide compounds were potential insect ryanodine receptor activators. The molecular docking was performed in the CHL binding domain of Plutella xylostella RyR and revealed that the predicted binding mode of compound B21 was slightly different from that of CHL. The MM|GBSA dG Bind values of B21 and CHL with P. xylostella RyR were respectively -85.797 and -95.641 kcal·mol-1. The present work explored the insecticidal properties of a new diamide scaffold containing a monofluoro-acrylamide fragment and extended the application of monofluoroalkene in the agrochemical field.
Collapse
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
| | - Yutong Wang
- 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
| | - 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, United Kingdom
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zhiping Xu
- 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
| |
Collapse
|
23
|
Wang M, Kong XP, Li H, Ge JC, Han XZ, Liu JH, Yu SL, Li W, Li DL, Wang J. Coprecipitation-based synchronous chlorantraniliprole encapsulation with chitosan: carrier-pesticide interactions and release behavior. PEST MANAGEMENT SCIENCE 2023; 79:3757-3766. [PMID: 37198750 DOI: 10.1002/ps.7559] [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: 12/02/2022] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND Controlled-release pesticide formulations have emerged as a promising approach towards sustainable pest control. Herein, an environment-friendly formulation of insecticide chlorantraniliprole (CAP) was fabricated through a simple approach of coprecipitation-based synchronous encapsulation by chitosan (CTS), with carrier-pesticide interaction mechanism and release behavior investigated. RESULTS The resulting CAP/CTS controlled-release formulation (CCF) showed a good loading content of 28.1% and a high encapsulation efficiency of 75.6%. Instrument determination in combination with molecular dynamics (MD) simulations displayed that the primary interactions between CAP and CTS were physical adsorption and complicated hydrogen (H)-bonds, which formed dominantly between NH in amides [or nitrogen (N) in ring structures] of CAP and hydroxyl (or amino) groups of CTS, as well as oxygen (O) in CAP with hydrogen in CTS or H2 O molecules. The in vitro release tests exhibited obvious pH/temperature sensitivity, with release dynamics following the first-order or Ritger-Peppas model. As the temperature increased, the CAP release process of the Ritger-Peppas model changed from Case-II to anomalous transport, and ultimately to a Fickian diffusion mechanism. The control effect against Plutella xylostella larvae also was evaluated by toxicity tests, where comparable efficacy of CCF to the commercial suspension concentrate was obtained. CONCLUSION The innovative, easy-to-prepare CCF can be used as a formulation with obvious pH/temperature sensitivity and good efficacy on target pests. This work contributes to the development of efficient and safe pesticide delivery systems, especially using the natural polymer materials as carriers. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Meng Wang
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China
| | - Xiang-Ping Kong
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China
| | - Hongchun Li
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China
| | - Jia-Cheng Ge
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, China
| | - Xian-Zheng Han
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, China
| | - Jun-Hao Liu
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Shu-Lan Yu
- College of Chemical Engineering, Weifang Vocational College, Weifang, China
| | - Weina Li
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China
| | - Ding-Li Li
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Juan Wang
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China
| |
Collapse
|
24
|
Sun Z, Lu Z, Xiao T, Chen Y, Fu P, Lu K, Gui F. Genome-Wide Scanning Loci and Differentially Expressed Gene Analysis Unveils the Molecular Mechanism of Chlorantraniliprole Resistance in Spodoptera frugiperda. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14092-14107. [PMID: 37699662 DOI: 10.1021/acs.jafc.3c04228] [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: 09/14/2023]
Abstract
Chlorantraniliprole has been widely used to controlSpodoptera frugiperda, but it has led to the development of chlorantraniliprole resistance. Multiomics analysis of strains with two extreme traits helps to elucidate the complex mechanisms involved. Herein, following genome resequencing and application of the Euclidean distance algorithm, 550 genes within a 16.20-Mb-linked region were identified from chlorantraniliprole-resistant (Ch-R) and chlorantraniliprole-susceptible (Ch-Sus) strains. Using transcriptome sequencing, 2066 differentially expressed genes were identified between Ch-R and Ch-Sus strains. Through association analysis, three glutathione S-transferase family genes and four trehalose transporter genes were selected for functional verification. Notably, SfGSTD1 had the strongest binding ability with chlorantraniliprole and is responsible for chlorantraniliprole tolerance. The Ch-R strain also increased the intracellular trehalose content by upregulating the transcription of SfTret1, thereby contributing to chlorantraniliprole resistance. These findings provide a new perspective to reveal the mechanism of resistance of agricultural pests to insecticides.
Collapse
Affiliation(s)
- Zhongxiang Sun
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Zhihui Lu
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Tianxiang Xiao
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Yaping Chen
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Pengfei Fu
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Kai Lu
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Furong Gui
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| |
Collapse
|
25
|
Song Y, Yang X, Li H, Wu K. The invasive Spodoptera frugiperda (J.E. Smith) has displaced Ostrinia furnacalis (Guenée) as the dominant maize pest in the border area of southwestern China. PEST MANAGEMENT SCIENCE 2023; 79:3354-3363. [PMID: 37132322 DOI: 10.1002/ps.7524] [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: 01/16/2023] [Revised: 04/25/2023] [Accepted: 05/03/2023] [Indexed: 05/04/2023]
Abstract
BACKGROUND The invasive fall armyworm (FAW) Spodoptera frugiperda (Lepidoptera: Noctuidae) has widely colonized the tropics and subtropics of Asia. However, the impact on the succession of the Asiatic corn borer (ACB) Ostrinia furnacalis (Lepidoptera: Pyralidae), a perennial dominant stemborer of maize in these areas, remains elusive. Here we analyzed the predation relationship, mimicked population competition, and surveyed the pest populations in the border area of Yunnan (southwestern China). RESULTS Laboratory assays revealed that the 2nd to 6th instar larvae of FAW preyed on ACB, and only the 4th and 5th instar larvae of ACB preyed on FAW (1st instar larvae only, 50% predation rate). The 6th instar FAW preyed on the 1st to 5th instar ACB with a theoretical maximum of 14.5-58.8 ACB individuals (per maize leaf) and 4.8-25.6 individuals (per tassel). When maize plants were infested with eggs of either FAW or ACB in field cage trials, maize damage was 77.6% and 50.6%, respectively, compared with 77.9% and 2.8% upon co-infestation. In field surveys conducted in 2019-2021, FAW density was significantly greater than that of ACB, which took a great impact on maize growth. CONCLUSION Our findings indicate that FAW can outcompete ACB at both the individual and population levels, which may result in FAW becoming the dominant pest. These results provide a scientific basis for further analysis of the mechanism by which FAW invades new agricultural areas and offers early-warning strategies for pest management. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Yifei Song
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xianming Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hui Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kongming Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| |
Collapse
|
26
|
Han C, Rahman MM, Shin J, Kim JH, Lee SH, Kwon M, Timm AE, Ramasamy S, Lee Y, Kang S, Park S, Kim J. Exaptation of I4760M mutation in ryanodine receptor of Spodoptera exigua (Lepidoptera: Noctuidae): Lessons from museum and field samples. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 195:105579. [PMID: 37666604 DOI: 10.1016/j.pestbp.2023.105579] [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: 07/06/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 09/06/2023]
Abstract
Since 2007, diamide insecticides have been widely used in Korea to control various types of lepidopteran pests including Spodoptera exigua. For nearly a decade, diamide resistance in field populations of S. exigua across 18 localities has been monitored using bioassays. Despite their short history of use, resistance to diamide insecticides has emerged. Based on the LC50 values, some field populations showed a higher level of resistance to chlorantraniliprole, a diamide insecticide, compared to that of the susceptible strain, although regional and temporal variations were observed. To investigate resistance at a molecular level, we examined three mutations (Y4701C, I4790M, and G4946E) in the ryanodine receptor (RyR), which is the primary mechanism underlying diamide insecticide resistance. DNA sequencing showed that only the I4790M mutation was found in most field populations. As resistance levels varied significantly despite the uniform presence of the I4790M mutation, we considered the presence of another resistance factor. Further, the I4790M mutation was also found in S. exigua specimens collected prior to the commercialization of diamide insecticides in Korea as well as in other countries, such as the USA. This finding led us to hypothesize that the I4790M mutation were predisposed in field populations owing to selection factors other than diamide use. For further clarification, we conducted whole-genome sequencing of S. exigua (449.83 Mb) and re-sequencing of 18 individual whole genomes. However, no additional non-synonymous mutations were detected in the RyR-coding region. Therefore, we concluded that the high level of diamide insecticide resistance in Korean S. exigua is not caused by mutations at the target site, RyR, but is attributed to other factors that need to be investigated in future studies.
Collapse
Affiliation(s)
- Changhee Han
- Interdisciplinary Graduate Program in Smart Agriculture, Kangwon National Unversity, Chuncheon 24341, Republic of Korea.
| | - Md-Mafizur Rahman
- Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia 7003, Bangladesh.
| | - Jiyeong Shin
- Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea.
| | - Ju Hyeon Kim
- Department of Tropical Medicine and Parasitology, Seoul National University, Seoul 03080, Republic of Korea.
| | - Si Hyeock Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea.
| | - Min Kwon
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
| | - Alicia E Timm
- Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80523, USA.
| | | | - Youngsu Lee
- Gyeonggi Provincial Agricultural Research and Extension Services, Republic of Korea.
| | - Sera Kang
- Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration, Pyeongchang, Republic of Korea.
| | - Suhyeong Park
- Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration, Pyeongchang, Republic of Korea.
| | - Juil Kim
- Interdisciplinary Graduate Program in Smart Agriculture, Kangwon National Unversity, Chuncheon 24341, Republic of Korea; Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Plant Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea.
| |
Collapse
|
27
|
Mao KK, Li HR, Zhu JY, Jin MH, Wang P, Peng Y, Xiao YT. Rapid test to detect insecticide resistance in field populations of Spodoptera frugiperda (Lepidoptera: Noctuidae). Front Physiol 2023; 14:1254765. [PMID: 37680771 PMCID: PMC10482100 DOI: 10.3389/fphys.2023.1254765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023] Open
Abstract
Introduction: The development of insecticide resistance in Spodoptera frugiperda populations is a serious threat to the crop industry. Given the spread of invasive resistant populations, prospective monitoring should be accelerated, and the development of diagnostic tools for rapid and accurate assessments of insecticide resistance is essential. Methods: First, the discriminating dose and diagnostic time of the kit were determined by the glass vial method based on a susceptible strain. Then, pests that were collected from field populations were used to determine their susceptibility to seven insecticides by using the diagnostic kit. Finally, the accuracy of the kit was verified based on correlation analyses and the likelihood of insecticide control failure was assessed. Results: Here, we describe a diagnostic kit that enables the rapid detection of resistance to chlorpyrifos, bifenthrin, deltamethrin, lambda-cyhalothrin, phoxim, chlorantraniliprole and chlorfenapyr within 1-2 h in S. frugiperda at diagnostic doses of 0.98, 0.84, 0.38, 1.64, 0.0082, 1.75 and 0.65 μg/cm2, respectively. The linear equation between mortalities under diagnostic doses and actual resistance ratios measured by the diet-overlay bioassay was determined. The high correlation indicates that the insecticide resistance levels diagnosed by the kit were consistent with the results of the diet-overlay bioassay. Moreover, we found a significant negative correlation between diagnostic mortality and the likelihood of control failure for bifenthrin (r = -0.899, p = 0.001), deltamethrin (r = -0.737, p = 0.024) and lambda-cyhalothrin (r = -0.871, p = 0.002). Discussion: The insecticide resistance diagnostic kit for S. frugiperda is a user-friendly tool (portable, short detection time). Its excellent performance qualifies the kit as a reliable screening tool for identifying effective insecticides in sustainable resistance management.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yu-Tao Xiao
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| |
Collapse
|
28
|
Su XN, Li CY, Zhang YP. Chlorpyrifos and chlorfenapyr resistance in Spodoptera frugiperda (Lepidoptera: Noctuidae) relies on UDP-glucuronosyltransferases. JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:1329-1341. [PMID: 37253084 DOI: 10.1093/jee/toad088] [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: 12/28/2022] [Revised: 04/16/2023] [Accepted: 05/08/2023] [Indexed: 06/01/2023]
Abstract
Fall armyworm, Spodoptera frugiperda (J. E. Smith), has become an important agricultural pest worldwide. S. frugiperda is mainly controlled by the chemical insecticides, whereas the frequent application of insecticides would result in the resistance development. Insect uridine diphosphate-glucuronosyltransferases (UGTs), as phase II metabolism enzymes, play vital roles in the breakdown of endobiotic and xenobiotics. In this study, 42 UGT genes were identified by RNA-seq, including 29 UGT genes were elevated compared to the susceptible population, and the transcript levels of 3 UGTs (UGT40F20, UGT40R18, and UGT40D17) were increased by more than 2.0-fold in the field populations. Expression pattern analysis revealed that S. frugiperda UGT40F20, UGT40R18, and UGT40D17 were increased by 6.34-, 4.26-, and 8.28-fold, compared the susceptible populations, respectively. The expression of UGT40D17, UGT40F20, and UGT40R18 was affected after exposure to phenobarbital, chlorpyrifos, chlorfenapyr, sulfinpyrazone, and 5-nitrouracil. The induced expression of UGT genes may have improved UGT enzymatic activity, while the inhibition of UGTs genes expression may decreased UGT enzymatic activity. Sulfinpyrazone, and 5-nitrouracil, significantly increased the toxicity of chlorpyrifos and chlorfenapyr, as well as phenobarbital significantly reduced the toxicity of chlorpyrifos and chlorfenapyr against the susceptible populations and field populations of S. frugiperda. The suppression of UGTs (UGT40D17, UGT40F20, and UGT40R18) significantly increased the insensitivity of the field populations to chlorpyrifos and chlorfenapyr. These findings strongly supported our viewpoint that UGTs may play a critical role in insecticide detoxification. This study provides a scientific basis for the management of S. frugiperda.
Collapse
Affiliation(s)
- Xiang-Ning Su
- Research Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control of Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Key Laboratory of High Technology for Plant Protection of Guangdong Province, Guangzhou 510640, China
| | - Chuan-Ying Li
- Research Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control of Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Key Laboratory of High Technology for Plant Protection of Guangdong Province, Guangzhou 510640, China
| | - Yu-Ping Zhang
- Research Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control of Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Key Laboratory of High Technology for Plant Protection of Guangdong Province, Guangzhou 510640, China
| |
Collapse
|
29
|
do Nascimento ARB, Rodrigues JG, Kanno RH, de Amaral FSAE, Malaquias JB, Silva-Brandão KL, Cônsoli FL, Omoto C. Susceptibility monitoring and comparative gene expression of susceptible and resistant strains of Spodoptera frugiperda to lambda-cyhalothrin and chlorpyrifos. PEST MANAGEMENT SCIENCE 2023; 79:2206-2219. [PMID: 36750418 DOI: 10.1002/ps.7399] [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: 09/21/2022] [Revised: 01/18/2023] [Accepted: 02/08/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Spodoptera frugiperda (J. E. Smith) is a widespread agricultural pest with several records of resistance to different insecticides and Bt proteins, including the neurotoxic insecticides chlorpyrifos (organophosphate) and lambda-cyhalothrin (pyrethroid). Here, we (i) characterized and monitored the susceptibility of field populations of S. frugiperda to chlorpyrifos (194 populations) and lambda-cyhalothrin (197 populations) collected from major maize-growing regions of Brazil from 2003 to 2016, and (ii) compared gene expression levels of laboratory-selected, chlorpyrifos- and lambda-cyhalothrin-resistant strains to a susceptible reference strain (Sf-ss) of S. frugiperda. RESULTS The susceptibility monitoring detected average survival ranging from 29.3% to 36.0% for chlorpyrifos, and 23.1% to 68.0% for lambda-cyhalothrin. The resistance ratio of the chlorpyrifos-resistant strain (Clo-rr) was 25.4-fold and of the lambda-cyhalothrin-resistant strain (Lam-rr) was 21.5-fold. We identified 1098 differentially expressed genes (DEGs) between Clo-rr and Sf-ss, and 303 DEGs between Lam-rr and Sf-ss. Functional analyses of the DEGs revealed the up-regulation of several detoxification enzymes, mainly cytochrome P450 belonging to CYP3 and CYP6 clans. Genes associated with regulatory processes, such as the forkhead box class O (FoxO) transcription factor were also up-regulated. Variant analysis of target-site mutations for both pesticides identified the A201S and F290V mutations in acetylcholinesterase-1, both occurring in heterozigosis in the Clo-rr S. frugiperda strain. CONCLUSION Our data show that the overexpression of the enzymatic detoxification machinery is the main difference to explain the resistance of Clo-rr and Lam-rr strains of S. frugiperda to chlorpyrifos and lambda-cyhalothrin, although a target-site mutation also contributes to the Clo-rr resistance to chlorpyrifos. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
| | - Juliana Gonzales Rodrigues
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Rubens Hideo Kanno
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | | | - José Bruno Malaquias
- Entomology Laboratory, Agrarian Science Center, Federal University of Paraíba, Areia, Brazil
| | - Karina Lucas Silva-Brandão
- Center for Taxonomy and Morphology, Museum of Zoology, Leibniz Institute for the Analysis of Biodiversity, Hamburg, Germany
| | - Fernando Luís Cônsoli
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| |
Collapse
|
30
|
Feng D, Wu S, Jiang B, He S, Luo Y, Li F, Song B, Song R. Discovery of Novel Isoxazoline Derivatives Containing Diaryl Ether against Fall Armyworms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6859-6870. [PMID: 37126004 DOI: 10.1021/acs.jafc.3c00824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
With the continuous evolution of insect resistance, it is a tremendous challenge to control the fall armyworm (Spodoptera frugiperda) with traditional insecticides. To solve this pending issue, a series of novel isoxazoline derivatives containing diaryl ether structures were designed and synthesized, and most of the target compounds exhibited excellent insecticidal activity. Based on the three-dimensional quantitative structure-activity relationship (3D-QSAR) model analysis, we further optimized the molecular structure with compound L35 obtained and tested for its activity. Compound L35 (LC50 = 1.69 mg/L) exhibited excellent insecticidal activity against S. frugiperda, which was better than those of commercial fipronil (LC50 = 70.78 mg/L) and indoxacarb (LC50 = 5.37 mg/L). The enzyme-linked immunosorbent assay showed that L35 could upregulate the levels of GABA in insects. In addition, molecular docking and transcriptomic results also indicated that compound L35 may affect the nervous system of S. frugiperda by acting on GABA receptors. Notably, through high-performance liquid chromatography (HPLC), we were able to obtain the two enantiomers of compound L35, and the insecticidal activity test revealed that S-(+)-L35 was 44 times more active than R-(-)-L35 against S. frugiperda. This study established the chemistry basis and mechanistic foundations for the future development of pesticide candidates against fall armyworms.
Collapse
Affiliation(s)
- Di Feng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Shang Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Biaobiao Jiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Siqi He
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Yuqin Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Fangyi Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Baoan Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| | - Runjiang Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P.R. China
| |
Collapse
|
31
|
Jiang B, Li F, Feng D, Wei W, Luo Y, He S, Dong Y, Hu D. Discovery of Novel Isoxazoline Compounds that Incorporate a para-Diamide Moiety as Potential Insecticidal Agents against Fall Armyworm ( Spodoptera frugiperda). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5516-5524. [PMID: 37000156 DOI: 10.1021/acs.jafc.3c00351] [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] [Indexed: 06/19/2023]
Abstract
Spodoptera frugiperda is a major migratory agricultural pest, which seriously impedes agricultural production around the world. To discover potent compounds against S. frugiperda, a number of novel isoxazoline derivatives were designed and synthesized and created on account of the identified lead compound F32 (4-(5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-2-methyl-N-(3-propionamidophenyl)benzamide). Based on the three-dimensional quantitative structure-activity relationship of those compounds, the compound G22 (N-(4-acetamidophenyl)-4-(5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-2-methylbenzamide) was developed. A bioassay showed that G22 is highly lethal to S. frugiperda (LC50 = 1.57 mg/L), a more effective control than insecticides fipronil (LC50 = 78.8 mg/L) and chlorantraniliprole (LC50 = 1.60 mg/L). Field trials were also implemented to identify candidate agents. Furthermore, from the insect γ-aminobutyric acid (GABA) enzyme-linked immunosorbent assay, it is obvious that G22 could up-regulate the expression of GABA of insects, which showed a similar result to fipronil. The analysis of molecular docking exhibited that the hydrophobic effect and hydrogen bonds play key roles in the combination between G22 with GABA receptors. This study provides a potent isoxazoline candidate compound for the S. frugiperda control.
Collapse
Affiliation(s)
- Biaobiao Jiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Fangyi Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Di Feng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Wenchao Wei
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Yuqin Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Siqi He
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Yawen Dong
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Deyu Hu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| |
Collapse
|
32
|
Ngegba PM, Cui G, Li Y, Zhong G. Synergistic effects of chlorantraniliprole and camptothecin on physiological impairments, histopathological, biochemical changes, and genes responses in the larvae midgut of Spodoptera frugiperda. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 191:105363. [PMID: 36963934 DOI: 10.1016/j.pestbp.2023.105363] [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: 11/22/2022] [Revised: 01/12/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Spodoptera frugiperda is an economically important agricultural pest and poses a serious threat to food security globally. Its management is gravely challenged by its high polyphagous nature, strong migratory ability, and massive fecundity. Chlorantraniliprole (CHL) is widely utilized in controlling S. frugiperda, its intensive application and over-reliance pose adverse health risks, development of resistance, toxicity to beneficial insects, natural enemies, and environmental contamination. To address S. frugiperda resistance to CHL and its inherent challenges, this study explores the synergistic effects of camptothecin (CPT) with CHL in its management. The binary mixed adversely induced the larvae weight and mortality when compared to single-treated. CHL + CPT (1:20 mg/L) had the highest larvae mortality of (73.80 %) with a high antagonistic factor (0.90), while (1:10 mg/L) with (66.10%) mortality exhibited a high synergistic factor (1.43). Further, CHL + CPT (1:10 mg/L) considerably altered the midgut epithelial cell, peritrophic membrane, microvilli, basement membrane, and regenerative cells. For biochemical analysis, CHL + CPT (1:10 mg/L) significantly decreased glutathione-S-transferase (1-chloro-2,4-dinitrobenzene CDNB) and cytochrome P450 (7-ethoxycoumarin O-deethylation) activities in the midgut in a dose and time dependent manner. Based on RNA-Seq analysis, a total of 4,373 differentially expressed genes (DEGs) were identified from the three treatments. CPT vs CK (Control) had 1694 (968 up-, 726 down-regulated), CHL vs CK with 1771 (978 up-, 793 down-regulated), and CHL + CPT vs CK had 908 (394 up-, 514 down-regulated) DEGs. The enrichment analysis disclosed significant pathways such as metabolism of xenobiotics by cytochrome P450, glutathione metabolism, TOLL and IMD (Immune Deficiency) signaling pathway, longevity regulating pathway. This study provides basis to expatiate on the molecular toxicological mechanism of CHL + CPT in management of fall armyworm.
Collapse
Affiliation(s)
- Patrick Maada Ngegba
- Key Laboratory of Integrated Pest Management on Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China; Sierra Leone Agricultural Research Institute, P.M.B 1313 Tower Hill, Freetown 47235, Sierra Leone
| | - Gaofeng Cui
- Key Laboratory of Integrated Pest Management on Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Yun Li
- Key Laboratory of Integrated Pest Management on Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Guohua Zhong
- Key Laboratory of Integrated Pest Management on Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
33
|
Roy D, Biswas S, Sarkar S, Adhikary S, Chakraborty G, Sarkar PK, Al-Shuraym LA, Sayed S, Gaber A, Hossain A. Risk Assessment of Fluxametamide Resistance and Fitness Costs in Fall Armyworm ( Spodoptera frugiperda). TOXICS 2023; 11:307. [PMID: 37112534 PMCID: PMC10144201 DOI: 10.3390/toxics11040307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
The fall armyworm (FAW), Spodoptera frugiperda, is one of the most devastating invasive polyphagous pests, which has attracted recent global attention by developing resistance to various insecticidal active ingredients with independent mode of action. Fluxametamide, a newly commercialized isoxazoline insecticide, is exceptionally selective towards several lepidopteran pests. The present study aimed to evaluate resistance risk in FAW to fluxametamide and the fitness costs associated with fluxametamide resistance. A field-collected and genetically mixed population of FAW was artificially selected through continuous exposure to fluxametamide. After successive selection of 10 generations, there was no obvious increase in the LC50 (RF: 2.63-fold). The realized heritability (h2) of fluxametamide resistance was estimated as h2 = 0.084 using a quantitative genetic approach. Compared with the susceptible F0 strain, the Flux-SEL (F10) strain of FAW displayed no significant cross-resistance to broflanilide, chlorantraniliprole, fipronil, indoxacarb, lambda cyhalothrin, spinetoram, and tetraniliprole, except emamectin benzoate (RF: 2.08-fold). Increased activity of glutathione S-transferase (ratio 1.94) was observed in the Flux-SEL (F10) strain of FAW, while the cytochrome P450 and carboxylesterase activities were not altered. The fluxametamide-selection significantly affected the development and reproductive traits of FAW with a lower R0, T and relative fitness (Rf = 0.353). The results alluded that the risk of fluxametamide resistance evolution in FAW is relatively lower; however, proactive implementation of resistance management approaches should be done to maintain the field efficacy of fluxametamide against FAW.
Collapse
Affiliation(s)
- Debashis Roy
- Dhaanya Ganga Krishi Vigyan Kendra, Ramakrishna Mission Vivekananda Educational and Research Institute, Sargachhi, Murshidabad 742408, West Bengal, India
| | - Sujan Biswas
- Dhaanya Ganga Krishi Vigyan Kendra, Ramakrishna Mission Vivekananda Educational and Research Institute, Sargachhi, Murshidabad 742408, West Bengal, India
| | - Sukamal Sarkar
- School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Kolkata 700103, West Bengal, India
| | - Samrat Adhikary
- Dhaanya Ganga Krishi Vigyan Kendra, Ramakrishna Mission Vivekananda Educational and Research Institute, Sargachhi, Murshidabad 742408, West Bengal, India
| | - Gautam Chakraborty
- Department of Agricultural Entomology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India
| | - Pijush Kanti Sarkar
- Department of Agricultural Entomology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India
| | - Laila A. Al-Shuraym
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Samy Sayed
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed Gaber
- Department of Genetics, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Akbar Hossain
- Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh
| |
Collapse
|
34
|
Huang YQ, Sun P, Chen Y, Liu HX, Hao GF, Song BA. Bioinformatics toolbox for exploring target mutation-induced drug resistance. Brief Bioinform 2023; 24:7026012. [PMID: 36738254 DOI: 10.1093/bib/bbad033] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/25/2022] [Accepted: 01/14/2023] [Indexed: 02/05/2023] Open
Abstract
Drug resistance is increasingly among the main issues affecting human health and threatening agriculture and food security. In particular, developing approaches to overcome target mutation-induced drug resistance has long been an essential part of biological research. During the past decade, many bioinformatics tools have been developed to explore this type of drug resistance, and they have become popular for elucidating drug resistance mechanisms in a low cost, fast and effective way. However, these resources are scattered and underutilized, and their strengths and limitations have not been systematically analyzed and compared. Here, we systematically surveyed 59 freely available bioinformatics tools for exploring target mutation-induced drug resistance. We analyzed and summarized these resources based on their functionality, data volume, data source, operating principle, performance, etc. And we concisely discussed the strengths, limitations and application examples of these tools. Specifically, we tested some predictive tools and offered some thoughts from the clinician's perspective. Hopefully, this work will provide a useful toolbox for researchers working in the biomedical, pesticide, bioinformatics and pharmaceutical engineering fields, and a good platform for non-specialists to quickly understand drug resistance prediction.
Collapse
Affiliation(s)
- Yuan-Qin Huang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| | - Ping Sun
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| | - Yi Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| | - Huan-Xiang Liu
- Faculty of Applied Science, Macao Polytechnic University, Macao 999078, SAR, China
| | - Ge-Fei Hao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| | - Bao-An Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| |
Collapse
|
35
|
Wu YJ, Wang BJ, Wang MR, Peng YC, Cao HQ, Sheng CW. Control efficacy and joint toxicity of metaflumizone mixed with chlorantraniliprole or indoxacarb against the fall armyworm, Spodoptera frugiperda. PEST MANAGEMENT SCIENCE 2023; 79:1094-1101. [PMID: 36334007 DOI: 10.1002/ps.7278] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The fall armyworm (FAW), Spodoptera frugiperda is the main destructive pest of grain crops, and has led to substantial economic losses worldwide. Chemical pesticides are the most effective way to manage FAW. Here, a laboratory test using an artificial diet-incorporated assay was conducted to determine the toxicity of five insecticides and the joint effect of the binary combination insecticides to FAW larvae. A field plot test using foliar spray was carried out to assess the control efficacy of metaflumizone mixed with chlorantraniliprole or indoxacarb against FAW. RESULTS The bioassay results showed that metaflumizone had a stronger insecticidal effect than indoxacarb toward FAW larvae. Furthermore, the mixture of metaflumizone and chlorantraniliprole in a volume ratio of 3:7 had the strongest synergistic effect against FAW, with a co-toxicity coefficient (CTC) of 317.18. The best synergistic effect for mixtures of metaflumizone and indoxacarb was observed at a 1:9 volume ratio, with a CTC of 185.98. However, there was an antagonistic effect of metaflumizone mixed with emamectin benzoate and with lufenuron, because the co-toxic factor was less than -20 at volume ratios of 8:2 and 9:1, respectively. According to the results of the field trial, metaflumizone mixed with chlorantraniliprole or indoxacarb at a 50% reduction of the application rate can effectively control FAW with efficacy ranging from 77.73% to 94.65% 1-7 days postapplication. CONCLUSION Overall, our findings suggest that metaflumizone and its binary combination insecticides can be utilized in FAW integrated pest management programs. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Yu-Jie Wu
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
| | - Bing-Jie Wang
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
| | - Meng-Ru Wang
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
| | - Ying-Chuan Peng
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, P.R. China
| | - Hai-Qun Cao
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
| | - Cheng-Wang Sheng
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, P.R. China
| |
Collapse
|
36
|
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.
Collapse
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
| |
Collapse
|
37
|
Cao X, Wei J, Ge H, Guan D, Zheng Y, Meng X, Qian K, Wang J. Molecular Characterization of Spodoptera frugiperda Heme Oxygenase and Its Involvement in Susceptibility to Chlorantraniliprole. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2313-2321. [PMID: 36705998 DOI: 10.1021/acs.jafc.2c08255] [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] [Indexed: 06/18/2023]
Abstract
The mammalian heme oxygenase (HO) plays an important role in cytoprotection against oxidative-stress-induced cell damage; however, functional characterization of insect HO is still limited. In this study, cDNA encoding a HO, named SfHO, was cloned from Spodoptera frugiperda. Analysis of the transcription level and enzymatic activity showed that exposure of the LC30 concentration of chlorantraniliprole to the third instar larvae significantly upregulated both the mRNA level and enzymatic activity of SfHO at 24 h after treatment. Further injection of the HO activator, hemin, into the third instar larvae led to the upregulation of SfHO as well as decreased susceptibility of S. frugiperda to chlorantraniliprole. Consistently, overexpression of SfHO increased the Sf9 cell viability under chlorantraniliprole treatment. Strikingly, both RNAi and the dual-luciferase reporter assay in Sf9 cells revealed that, unlike mammalian HO that is regulated by the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2), SfHO was not subject to the regulation by cap 'n' collar isoform C (CncC), the Nrf2 homologue in insects. These data provide insights into the function and regulatory mechanism of insect HOs and had applied implications for the control of S. frugiperda.
Collapse
Affiliation(s)
- Xiaoli Cao
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Jiaping Wei
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Huichen Ge
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Daojie Guan
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Yang Zheng
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Xiangkun Meng
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Kun Qian
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Jianjun Wang
- College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| |
Collapse
|
38
|
Amaral FSDAE, Kanno RH, do Nascimento ARB, Guidolin AS, Omoto C. Trends towards Lower Susceptibility of Spodoptera frugiperda (Lepidoptera: Noctuidae) to Teflubenzuron in Brazil: An Evidence for Field-Evolved Resistance. INSECTS 2023; 14:129. [PMID: 36835698 PMCID: PMC9965761 DOI: 10.3390/insects14020129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Susceptibility monitoring to insecticides is a key component to implementing insecticide resistance management (IRM) programs. In this research, the susceptibility to teflubenzuron in Spodoptera frugiperda (J.E Smith) was monitored in more than 200 field-collected populations from major corn-growing regions of Brazil, from 2004 to 2020. Initially, we defined a diagnostic concentration of 10 µg mL-1 of teflubenzuron using a diet-overlay bioassay for monitoring the susceptibility. A variation in the susceptibility to teflubenzuron in S. frugiperda was detected among populations from different locations. We also detected a significant reduction in the susceptibility to teflubenzuron throughout time in all the populations of S. frugiperda evaluated, with larval survival at diagnostic concentration varying from values of <5% in 2004 to up 80% in 2020. Thus, this research provides evidence of field-evolved resistance of S. frugiperda to teflubenzuron and reinforces that IRM practices are urgently needed to be implemented in Brazil.
Collapse
|
39
|
Jiang B, Feng D, Li F, Luo Y, He S, Dong Y, Hu D. Design, Synthesis, and Insecticidal Activity of Novel Isoxazoline Compounds That Contain Meta-diamides against Fall Armyworm ( Spodoptera frugiperda). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1091-1099. [PMID: 36599080 DOI: 10.1021/acs.jafc.2c07035] [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] [Indexed: 06/17/2023]
Abstract
Fall armyworm (Spodoptera frugiperda) is a major migratory pest around the entire world that causes severe damage to agriculture. We designed and synthesized a series of novel isoxazoline derivatives based on the previously discovered active compound H13 to find new and effective candidates against S. frugiperda. Most of them showed excellent insecticidal activity. In addition, a three-dimensional quantitative structure-activity relationship model was established, and compound F32 was designed and synthesized based on the results. The bioassay result showed that compound F32 exhibited excellent activity against S. frugiperda (LC50 = 3.46 mg/L), which was substantially better than that of the positive control fipronil (LC50 = 78.8 mg/L). Furthermore, an insect γ-aminobutyric acid (GABA) enzyme-linked immunosorbent assay indicated that F32 can upregulate the content of GABA in insects in a manner similar to that of fipronil. Molecular docking showed that the hydrophobic effect and hydrogen-bond interactions are vital factors between the binding of F32 and receptors. All of these results suggest that compound F32 could be employed as a novel isoxazoline lead compound to control S. frugiperda.
Collapse
Affiliation(s)
- Biaobiao Jiang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Di Feng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Fangyi Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Yuqin Luo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Siqi He
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Yawen Dong
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou550025, P. R. China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou550025, P. R. China
| |
Collapse
|
40
|
Shu H, Lin Y, Zhang Z, Qiu L, Ding W, Gao Q, Xue J, Li Y, He H. The transcriptomic profile of Spodoptera frugiperda differs in response to a novel insecticide, cyproflanilide, compared to chlorantraniliprole and avermectin. BMC Genomics 2023; 24:3. [PMID: 36597049 PMCID: PMC9811769 DOI: 10.1186/s12864-022-09095-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/22/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Cyproflanilide is a novel chemical that is already undergoing insecticide registration in China and has been categorized as a member of group 30 by the IRAC. Since it was first detected in 2019, the fall armyworm (FAW), Spodoptera frugiperda, has become a serious pest in China. Our laboratory and field efficacy trials indicated that cyproflanilide exhibits high larvicidal activity against FAW. However, the effect of cyproflanilide against FAW remains unknown. And it is worth exploring further before the cyproflanilide becomes commercially available. RESULTS We found larvae exposed to cyproflanilide had significantly shorter body length and higher death rates compared to control larvae. Additionally, we found surviving larvae had a significantly longer developmental period compared to control larvae. The potential molecular mechanisms of cyproflanilide against FAW were investigated using comparative transcriptomic analyses on larval samples subjected to three insecticide treatments, including cyproflanilide and two other commonly used insecticides against FAW in China, chlorantraniliprole and avermectin. We found that several subunits of the γ-aminobutyric acid receptor (GABAR), a possible target protein of cyproflanilide, were significantly up-regulated at the transcriptional level during cyproflanilide-induced stress. Additionally, between the control and cyproflanilide-treated samples, we identified 131 differentially expressed genes (DEGs) associated with detoxification metabolism. Of these, we found four P450 genes that were significantly up-regulated under cyproflanilide stress but were not DEGs when exposed to chlorantraniliprole and avermectin, or 23 other pesticides from previous reports. Furthermore, we discovered an interesting gene aggregation region for insect cuticle proteins (CPs) on the 18th chromosome, which is likely related to FAW cross-resistance to cyproflanilide and avermectin. CONCLUSIONS Our results contribute to a greater understanding of the mechanisms by which cyproflanilide affects FAW. Additionally, we identified the similarities and differences in transcriptomic profiling of FAW between the novel insecticide cyproflanilide and two other commonly used insecticides.
Collapse
Affiliation(s)
- Haijuan Shu
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China
| | - Yufeng Lin
- Agriculture and Rural Department of Hunan Province, Plant Protection and Inspection Station, Changsha, 410005 China
| | - Zhengbing Zhang
- Agriculture and Rural Department of Hunan Province, Plant Protection and Inspection Station, Changsha, 410005 China
| | - Lin Qiu
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China
| | - Wenbing Ding
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China ,grid.257160.70000 0004 1761 0331National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, 410128 China
| | - Qiao Gao
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China
| | - Jin Xue
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China
| | - Youzhi Li
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China ,grid.257160.70000 0004 1761 0331National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, 410128 China
| | - Hualiang He
- grid.257160.70000 0004 1761 0331Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128 China
| |
Collapse
|
41
|
Lv H, Ling S, Guo Z, Zheng C, Ma H, Li J, Ma K. Effects of lufenuron treatments on the growth and development of Spodoptera frugiperda (Lepidoptera: Noctuidae). Comp Biochem Physiol C Toxicol Pharmacol 2023; 263:109499. [PMID: 36336329 DOI: 10.1016/j.cbpc.2022.109499] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
Lufenuron is an effective benzoylurea insecticide that inhibits the synthesis of chitin and regulates the growth of insects. However, little is known about the effects of lufenuron treatment on the development of Spodoptera frugiperda (J. E. Smith). In this study, we assessed the toxicity of lufenuron on S. frugiperda and evaluated the effects of lufenuron treatment on the growth and development of S. frugiperda. The results showed that lufenuron exhibits high insecticidal activity against S. frugiperda, with the LC50 value of 0.99 mg L-1. Lufenuron treatments can significantly prolong the larval developmental duration and reduce the rates of pupation and emergence. To further explore the underlying mechanism of this observation, the expression profiles of the chitin synthase gene (SfCHS) and chitinase gene (SfCHT), two key enzyme genes involved in the molting of S. frugiperda, were determined after exposure to lufenuron for 96 h. The results of qRT-PCR demonstrated that lufenuron treatments can significantly reduce the expression of SfCHT, while the expression of SfCHS remained relatively stable. Furthermore, we found that lufenuron strongly interacted with chitinase (SfCHT) (-10.8 kcal/mol) and chitin synthase (SfCHS) (R1: -9.7 kcal/mol; R2: -10.2 kcal/mol). Our results indicated that lufenuron has significant effects on the development of S. frugiperda that might be attributed to the differential expression of SfCHT and SfCHS.
Collapse
Affiliation(s)
- Haixiang Lv
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Shanshan Ling
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhimin Guo
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Chengfeng Zheng
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huina Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jianhong Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kangsheng Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
| |
Collapse
|
42
|
Oliveira Padovez FE, Hideo Kanno R, Zaia Zambon G, Omoto C, Sartori Guidolin A. The Cost of Resistance to Diamide Insecticide Varies With the Host Plant in Spodoptera frugiperda (Lepidoptera: Noctuidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:2041-2050. [PMID: 36255734 DOI: 10.1093/jee/toac160] [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: 05/10/2022] [Indexed: 06/16/2023]
Abstract
Fitness costs associated with insect resistance to insecticides can be exploited to implement resistance management programs. However, most of these studies are restricted to evaluating biological traits on artificial diets. Here, we investigated the fitness cost associated with chlorantraniliprole in Spodoptera frugiperda (J.E. Smith) feeding on corn, soybean, and cotton plants. We used a near-isogenic strain of S. frugiperda resistant to chlorantraniliprole (Iso-RR), a susceptible strain (SS), and heterozygotes strains (H1 and H2) to evaluate several biological and population growth parameters. Larval survival of the Iso-RR strain was on average 90% on corn, 65% on soybean, and 57% on cotton plants. Development time of the larval stage also differed among host plants, Iso-RR strain took on average 14, 17, and 26 days to reach the pupal stage on corn, soybean, and cotton plants respectively. Net reproductive rate, intrinsic rate of population increase, and finite rate of population increase were higher for Iso-RR strain feeding on corn plants than other host plants. The relative fitness, based on the intrinsic rate of population increase, of S. frugiperda resistant strain on corn, soybean, and cotton plants were 1.04, 0.85, and 0.88, respectively. Therefore, no fitness cost was observed for S. frugiperda feeding on corn plants, but a significant fitness cost was observed when this pest fed on soybean and cotton plants. We showed that the food source influences the fitness cost of S. frugiperda resistant to diamide. Such information may help to implement resistance management strategies based on each crop.
Collapse
Affiliation(s)
- Fernando Elias Oliveira Padovez
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ ESALQ), Piracicaba, SP, 13418-900, Brazil
| | - Rubens Hideo Kanno
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ ESALQ), Piracicaba, SP, 13418-900, Brazil
| | - Gustavo Zaia Zambon
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ ESALQ), Piracicaba, SP, 13418-900, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ ESALQ), Piracicaba, SP, 13418-900, Brazil
| | - Aline Sartori Guidolin
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ ESALQ), Piracicaba, SP, 13418-900, Brazil
| |
Collapse
|
43
|
Tay WT, Rane RV, James W, Gordon KHJ, Downes S, Kim J, Kuniata L, Walsh TK. Resistance Bioassays and Allele Characterization Inform Analysis of Spodoptera frugiperda (Lepidoptera: Noctuidae) Introduction Pathways in Asia and Australia. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:1790-1805. [PMID: 36515109 PMCID: PMC9748595 DOI: 10.1093/jee/toac151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Indexed: 06/16/2023]
Abstract
The fall armyworm (FAW) Spodoptera frugiperda (Smith; Lepidoptera: Noctuidae) is present in over 70 countries in Africa, Asia, and Oceania. Its rapid dispersal since 2016 when it was first reported in western Africa, and associated devastation to agricultural productivity, highlight the challenges posed by this pest. Currently, its management largely relies on insecticide sprays and transgenic Bacillus thuringiensis toxins, therefore understanding their responses to these agents and characteristics of any resistance genes enables adaptive strategies. In Australia, S. frugiperda was reported at the end of January 2020 in northern Queensland and by March 2020, also in northern Western Australia. As an urgent first response we undertook bioassays on two Australian populations, one each from these initial points of establishment. To assist with preliminary sensitivity assessment, two endemic noctuid pest species, Helicoverpa armigera (Hübner; Lepidoptera, Noctuidae) and Spodoptera litura (Fabricius; Lepidoptera, Noctuidae), were concurrently screened to obtain larval LC50 estimates against various insecticides. We characterized known resistance alleles from the VGSC, ACE-1, RyR, and ABCC2 genes to compare with published allele frequencies and bioassay responses from native and invasive S. frugiperda populations. An approximately 10× LC50 difference for indoxacarb was detected between Australian populations, which was approximately 28× higher than that reported from an Indian population. Characterization of ACE-1 and VGSC alleles provided further evidence of multiple introductions in Asia, and multiple pathways involving genetically distinct individuals in Australia. The preliminary bioassay results and resistance allele patterns from invasive S. frugiperda populations suggest multiple introductions have contributed to the pest's spread and challenge the axiom of its rapid 'west-to-east' spread.
Collapse
Affiliation(s)
- W T Tay
- Corresponding author, e-mail:
| | - R V Rane
- Applied BioSciences, Macquarie University, Sydney, NSW 2100, Australia
- CSIRO, 343 Royal Parade, Parkville, VIC 3052, Australia
| | - W James
- CSIRO Black Mountain Laboratories, Clunies Ross Street, Acton, ACT 2601, Australia
| | - K H J Gordon
- CSIRO Black Mountain Laboratories, Clunies Ross Street, Acton, ACT 2601, Australia
| | - S Downes
- CSIRO McMaster Laboratories, New England Highway, Armidale, NSW 2350, Australia
| | - J Kim
- College of Agriculture and Life Science, Kangwon National University, Republic of Korea
| | | | - T K Walsh
- CSIRO Black Mountain Laboratories, Clunies Ross Street, Acton, ACT 2601, Australia
- Applied BioSciences, Macquarie University, Sydney, NSW 2100, Australia
| |
Collapse
|
44
|
Hafeez M, Li X, Ullah F, Zhang Z, Zhang J, Huang J, Chen L, Siddiqui JA, Ren X, Zhou S, Imran M, Assiri MA, Zalucki MP, Lou Y, Lu Y. Characterization of Indoxacarb Resistance in the Fall Armyworm: Selection, Inheritance, Cross-Resistance, Possible Biochemical Mechanisms, and Fitness Costs. BIOLOGY 2022; 11:biology11121718. [PMID: 36552228 PMCID: PMC9774702 DOI: 10.3390/biology11121718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022]
Abstract
The fall armyworm, Spodoptera frugiperda (J.E. Smith), is a voracious insect pest that is difficult to control due to resistance to insecticides and Bt proteins. We assessed cross-resistance, resistance mechanism, and fitness costs based on the life history traits of S. frugiperda. We established an S. frugiperda strain selected for resistance to indoxacarb (Ind-SEL) from a field-collected population and an unselected strain, Ind-UNSEL. Results indicated that after 24 generations of selection, the resistance to indoxacarb was increased by 472.67-fold as compared to the Ind-UNSEL. There was high cross-resistance to deltamethrin (31.23-fold) with very low or negligible cross-resistance to chlorantraniliprole, emamectin benzoate, and/or methoxyfenozide in the Ind-SEL population. Butoxide synergist increased susceptibility to indoxacarb, indicating that P450 enzymes may be involved in indoxacarb resistance. Significantly longer developmental time of larvae extended pupal duration, shorter adult longevity, and lower fecundity were observed in Ind-SEL as compared with the Ind-UNSEL population. The Net reproductive rate (R0) was the only growth parameter that differs between crosses of Ind-SEL♂ × Ind-UNSEL♀ (176 ± 46) and Ind-SEL♀ × Ind-UNSEL♂ (328 ± 57). On the other hand, all population growth parameters differ between Ind-SEL and Ind-UNSEL strains. Our work contributes to the growing body of research that demonstrates the importance of strain genetics in fitness cost experiments and helps resistance management programs make decisions.
Collapse
Affiliation(s)
- Muhammad Hafeez
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaowei Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Farman Ullah
- Department of Plant Biosecurity, College of Plant Protection, China Agricultural University, Beijing 100083, China
| | - Zhijun Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jinming Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jun Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Limin Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Integrated Plant Protection Center, Lishui Academy of Agricultural and Forestry Sciences, Lishui 323000, China
| | - Junaid Ali Siddiqui
- College of Agriculture, College of Tobacco Science, Guizhou University, Guiyang 550025, China
| | - Xiaoyun Ren
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Shuxing Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Myron P. Zalucki
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yonggen Lou
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
- Correspondence: (Y.L.); (Y.L.)
| | - Yaobin Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Correspondence: (Y.L.); (Y.L.)
| |
Collapse
|
45
|
CRISPR/Cas9-Mediated Mutagenesis of Sex-Specific Doublesex Splicing Variants Leads to Sterility in Spodoptera frugiperda, a Global Invasive Pest. Cells 2022; 11:cells11223557. [PMID: 36428986 PMCID: PMC9688123 DOI: 10.3390/cells11223557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
Spodoptera frugiperda (J. E. Smith), an emerging invasive pest worldwide, has posed a serious agricultural threat to the newly invaded areas. Although somatic sex differentiation is fundamentally conserved among insects, the sex determination cascade in S. frugiperda is largely unknown. In this study, we cloned and functionally characterized Doublesex (dsx), a "molecular switch" modulating sexual dimorphism in S. frugiperda using male- and female-specific isoforms. Given that Lepidoptera is recalcitrant to RNAi, CRISPR/Cas9-mediated mutagenesis was employed to construct S. frugiperda mutants. Specifically, we designed target sites on exons 2, 4, and 5 to eliminate the common, female-specific, and male-specific regions of S. frugiperda dsx (Sfdsx), respectively. As expected, abnormal development of both the external and internal genitalia was observed during the pupal and adult stages. Interestingly, knocking out sex-specific dsx variants in S. frugiperda led to significantly reduced fecundity and fertility in adults of corresponding sex. Our combined results not only confirm the conserved function of dsx in S. frugiperda sex differentiation but also provide empirical evidence for dsx as a potential target for the Sterile Insect Technique (SIT) to combat this globally invasive pest in a sustainable and environmentally friendly way.
Collapse
|
46
|
Lu Z, Sun Z, Li Y, Hao R, Chen Y, Chen B, Qin X, Tao X, Gui F. Effects of Elevated CO 2 Concentration on Host Adaptability and Chlorantraniliprole Susceptibility in Spodoptera frugiperda. INSECTS 2022; 13:1029. [PMID: 36354853 PMCID: PMC9699368 DOI: 10.3390/insects13111029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Elevated atmospheric carbon dioxide concentrations (eCO2) can affect both herbivorous insects and their host plants. The fall armyworm (FAW), Spodoptera frugiperda, is a highly polyphagous agricultural pest that may attack more than 350 host plant species and has developed resistance to both conventional and novel-action insecticides. However, the effects of eCO2 on host adaptability and insecticide resistance of FAW are unclear. We hypothesized that eCO2 might affect insecticide resistance of FAW by affecting its host plants. To test this hypothesis, we investigated the effect of eCO2 on (1) FAW's susceptibility to chlorantraniliprole after feeding on wheat, (2) FAW's population performance traits (including the growth and reproduction), and (3) changes in gene expression in the FAW by transcriptome sequencing. The toxicity of chlorantraniliprole against the FAW under eCO2 (800 µL/L) stress showed that the LC50 values were 2.40, 2.06, and 1.46 times the values at the ambient CO2 concentration (400 µL/L, aCO2) for the three generations, respectively. Under eCO2, the life span of pupae and adults and the total number of generations were significantly shorter than the FAW under aCO2. Compared to the aCO2 treatment, the weights of the 3rd and 4th instar larvae and pupae of FAW under eCO2 were significantly heavier. Transcriptome sequencing results showed that more than 79 detoxification enzyme genes in FAW were upregulated under eCO2 treatment, including 40 P450, 5 CarE, 17 ABC, and 7 UGT genes. Our results showed that eCO2 increased the population performance of FAW on wheat and reduced its susceptibility to chlorantraniliprole by inducing the expression of detoxification enzyme genes. This study has important implications for assessing the damage of FAW in the future under the environment of increasing atmospheric CO2 concentration.
Collapse
Affiliation(s)
- Zhihui Lu
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Zhongxiang Sun
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Yahong Li
- Yunnan Plant Protection and Quarantine Station, Kunming 650034, China
| | - Ruoshi Hao
- Yunnan Plateau Characteristic Agriculture Industry Research Institute, Kunming 650201, China
| | - Yaping Chen
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Bin Chen
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Xiaoping Qin
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Xuan Tao
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Furong Gui
- State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| |
Collapse
|
47
|
Prasanna BM, Bruce A, Beyene Y, Makumbi D, Gowda M, Asim M, Martinelli S, Head GP, Parimi S. Host plant resistance for fall armyworm management in maize: relevance, status and prospects in Africa and Asia. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:3897-3916. [PMID: 35320376 PMCID: PMC9729323 DOI: 10.1007/s00122-022-04073-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/01/2022] [Indexed: 05/16/2023]
Abstract
Sustainable control of fall armyworm (FAW) requires implementation of effective integrated pest management (IPM) strategies, with host plant resistance as a key component. Significant opportunities exist for developing and deploying elite maize cultivars with native genetic resistance and/or transgenic resistance for FAW control in both Africa and Asia. The fall armyworm [Spodoptera frugiperda (J.E. Smith); FAW] has emerged as a serious pest since 2016 in Africa, and since 2018 in Asia, affecting the food security and livelihoods of millions of smallholder farmers, especially those growing maize. Sustainable control of FAW requires implementation of integrated pest management strategies, in which host plant resistance is one of the key components. Significant strides have been made in breeding elite maize lines and hybrids with native genetic resistance to FAW in Africa, based on the strong foundation of insect-resistant tropical germplasm developed at the International Maize and Wheat Improvement Center, Mexico. These efforts are further intensified to develop and deploy elite maize cultivars with native FAW tolerance/resistance and farmer-preferred traits suitable for diverse agro-ecologies in Africa and Asia. Independently, genetically modified Bt maize with resistance to FAW is already commercialized in South Africa, and in a few countries in Asia (Philippines and Vietnam), while efforts are being made to commercialize Bt maize events in additional countries in both Africa and Asia. In countries where Bt maize is commercialized, it is important to implement a robust insect resistance management strategy. Combinations of native genetic resistance and Bt maize also need to be explored as a path to more effective and sustainable host plant resistance options. We also highlight the critical gaps and priorities for host plant resistance research and development in maize, particularly in the context of sustainable FAW management in Africa and Asia.
Collapse
Affiliation(s)
- Boddupalli M Prasanna
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, UN Avenue, P.O. Box 1041, GigiriNairobi, 00621, Kenya.
| | - Anani Bruce
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, UN Avenue, P.O. Box 1041, GigiriNairobi, 00621, Kenya
| | - Yoseph Beyene
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, UN Avenue, P.O. Box 1041, GigiriNairobi, 00621, Kenya
| | - Dan Makumbi
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, UN Avenue, P.O. Box 1041, GigiriNairobi, 00621, Kenya
| | - Manje Gowda
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, UN Avenue, P.O. Box 1041, GigiriNairobi, 00621, Kenya
| | | | | | - Graham P Head
- Regulatory Science, Bayer Crop Science US, Chesterfield, MO, USA
| | | |
Collapse
|
48
|
Lv SL, Xu ZY, Li MJ, Mbuji AL, Gu M, Zhang L, Gao XW. Detection of Chitin Synthase Mutations in Lufenuron-Resistant Spodoptera frugiperda in China. INSECTS 2022; 13:insects13100963. [PMID: 36292911 PMCID: PMC9604260 DOI: 10.3390/insects13100963] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 05/12/2023]
Abstract
Spodoptera frugiperda (J. E. Smith), is commonly known as fall armyworm, native to tropical and subtropical regions of America, is an important migratory agricultural pest. It is important to understand the resistance and internal mechanism of action of S. frugiperda against lufenuron in China. Lufenuron is one of the main insecticides recommended for field use in China and has a broad prospect in the future. We conducted a bioassay using the diet-overlay method and found that the current S. frugiperda in China are still at a low level of resistance to lufenuron. Secondly, we examined whether the mutation I1040M (I1042M in Plutella xylostella), associated with lufenuron resistance, was produced in the field. And then we tested the expression of chitin synthase SfCHSA and SfCHSB in different tissues, and the changes of these two genes after lufenuron induction. The results showed that there is still no mutation generation in China and there is a significant change in the expression of SfCHSA under the effect of lufenuron. In conclusion, our study suggests that field S. frugiperda populations in 2019 and 2020 were less resistant to lufenuron. In fall armyworm, chitin synthases included SfCHSA and SfCHSB genes, and after induction treatment with lufenuron, the expression of the SfCHSA gene was significantly increased. In SfCHSA, no mutation has been detected in the site associated with lufenuron resistance. Secondly, in S. frugiperda larvae, the SfCHSA gene was the highest in the head of the larvae, followed by the integument; while the SfCHSB gene was mainly concentrated in the midgut. Therefore, we believe that the SfCHSA gene plays a greater role in the resistance of S. frugiperda to lufenuron than the SfCHSB gene. It is worth noting that understanding the level of resistance to lufenuron in China, the main mechanism of action of lufenuron on larvae, and the mechanism of resistance to lufenuron in S. frugiperda will help in crop protection as well as in extending the life span of this insecticide.
Collapse
Affiliation(s)
| | | | | | | | | | - Lei Zhang
- Correspondence: ; Tel.: +86-010-6273-2974
| | | |
Collapse
|
49
|
Song XY, Peng YX, Wang LX, Ye WN, Pei XG, Zhang YC, Zhang S, Gao CF, Wu SF. Monitoring, cross-resistance, inheritance, and fitness costs of brown planthoppers, Nilaparvata lugens, resistance to pymetrozine in China. PEST MANAGEMENT SCIENCE 2022; 78:3980-3987. [PMID: 35633099 DOI: 10.1002/ps.7017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/23/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The brown planthopper, Nilaparvata lugens, is considered the most destructive pest of rice in many Asian countries including China. Use of pymetrozine in insect resistance management (IRM) has been one strategy to control this pest. In this study, we reported the status of pymetrozine resistance in Nilaparvata lugens (Stål) collected from China over the period 2017-2021 and selected a strain of N. lugens resistant to pymetrozine and evaluated the cross-resistance, inheritance and fitness costs of the resistance. RESULTS Monitoring data (2017-2021) showed that field populations of N. lugens in China developed moderate- to high-level pymetrozine resistance during these 5 years. By continuous selection with pymetrozine in the lab, the pymetrozine selected N. lugens strain (Pym-R98 ) developed a 225.2-fold resistance compared to a susceptible strain. The Pym-R98 strain showed high cross-resistance to dinotefuran (66.6-fold) and low cross-resistance to nitenpyram (5.2-fold) and sulfoxaflor (5.8-fold). Inheritance pattern analysis of Pym-R93 revealed that resistance to pymetrozine was polygenic, autosomal and incompletely dominant. Fitness costs of pymetrozine resistance were present in Pym-R90 and WA2020 strains with a relative fitness of 0.72 and 0.60, respectively. The developmental duration of Pym-R90 and WA2020 was significantly longer and hatchability was significantly lower compared to pymetrozine-susceptible strain (Pym-S). CONCLUSIONS N. lugens has developed high level of resistance to pymetrozine. Pymetrozine-resistance brown planthopper had cross-resistance with some of neonicotinoids such as dinotefuran, nitenpyram and sulfoxaflor. The autosomal, incompletely dominant and polygenic resistance to pymetrozine in N. lugens and the fitness costs associated with this resistance can be exploited in IRM strategies to preserve the lifetime of pymetrozine for control of N. lugens in China. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xin-Yu Song
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Yu-Xuan Peng
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Li-Xiang Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Wen-Nan Ye
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Xin-Guo Pei
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Yan-Chao Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Shuai Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Cong-Fen Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Shun-Fan Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
50
|
Malaquias JB, Ferreira CP, Ramalho FDS, Godoy WAC, Pachú JKS, Omoto C, Neto DDOA, Padovez FEO, Silva LB. Modeling the Resistance Evolution to Insecticides Driven by Lepidopteran Species Competition in Cotton, Soybean, and Corn Crops. BIOLOGY 2022; 11:biology11091354. [PMID: 36138833 PMCID: PMC9495947 DOI: 10.3390/biology11091354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/26/2022]
Abstract
Simple Summary Lepidopteran species commonly interact in the same niches in multiple crops. Interspecific competition has been neglected as a pressure selection agent in insecticide resistance studies. Our results showed that competition may act as an agent to speed up the evolution of diamide resistance in Spodoptera frugiperda and Helicoverpa armigera. Abstract Intra- and interspecific competition is considered a fundamental phenomenon in ecology. It acts as one of the most powerful selective forces that drives ecological diversity, the spatiotemporal distribution of organisms, fitness, and evolutionary aspects. Spodoptera frugiperda and Helicoverpa armigera are devastating pests and can co-occur in systems consisting of multiple agricultural crops and compete for food resources. Insecticide resistance in populations of these species has been a major threat to the sustainability of agroecosystems. No study to date has shown the effect of intra- and interspecific competition as a selective pressure agent on the evolution of insecticide resistance in lepidopteran pests in an experimental and theoretical way. Our study developed a parameterized computational model with experimental results for S. frugiperda and H. armigera competition. We simulated the behavior of heterozygous individuals with a competition capacity 100% equal to homozygous individuals resistant (100 RR) or susceptible to insecticides (00 RR), and intermediate between them (50 RR). Competition involving strains of these insect species can accelerate the evolution of their resistance to insecticides in agricultural crops. We found that competitive processes can result in a high probability of competitive exclusion for individuals with the susceptibility allele of these lepidopteran species. The results of this study are of paramount importance for understanding the impact of ecological factor competition on the evolution of insecticide resistance in lepidopteran pests, which until now has been neglected in these types of evolutionary dynamics studies.
Collapse
Affiliation(s)
- José B. Malaquias
- Department of Biostatistics, Institute of Biosciences–IBB, São Paulo State University (UNESP), Botucatu 18618-693, Brazil
- Correspondence:
| | - Cláudia P. Ferreira
- Department of Biostatistics, Institute of Biosciences–IBB, São Paulo State University (UNESP), Botucatu 18618-693, Brazil
| | - Francisco de S. Ramalho
- Biological Control Unit, Embrapa Algodão, Av. Osvaldo Cruz, 1143 Campina Grande, Paraíba 58107-720, Brazil
| | - Wesley A. C. Godoy
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba 13418-900, Brazil
| | - Jéssica K. S. Pachú
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba 13418-900, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba 13418-900, Brazil
| | - Dyrson de O. A. Neto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba 13418-900, Brazil
| | - Fernando E. O. Padovez
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba 13418-900, Brazil
| | - Luciana Barboza Silva
- Campus Professora Cinobelina Elvas, Federal University of Piauí, Bom Jesus, Piauí 64900-000, Brazil
| |
Collapse
|