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Pang C, Xu Y, Ma X, Li S, Zhou S, Tian H, Wang M, Han B. Design, synthesis, and evaluation of novel arecoline-linked amino acid derivatives for insecticidal and antifungal activities. Sci Rep 2024; 14:9392. [PMID: 38658769 PMCID: PMC11043403 DOI: 10.1038/s41598-024-60053-2] [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: 02/02/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024] Open
Abstract
A series of arecoline derivatives with amino acid moieties were designed and synthesised using an acylamide condensation strategy, taking arecoline as the foundational structure. The insecticidal efficacy of these compounds against Aphis craccivora and Tetranychus cinnabarinus was evaluated. Notably, derivatives 3h and 3i demonstrated superior insecticidal activity compared with arecoline. Additionally, 3h and 3i showed good fungicidal effectiveness against two types of plant fungi. Moreover, molecular docking analyses suggested that 3h and 3i could affect the nervous systems of A. craccivora and T. cinnabarinus by binding to neuronal nicotinic acetylcholine receptors. These findings suggest that compounds 3h and 3i represent promising leads for further development in insecticide and fungicide research.
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Affiliation(s)
- Chaohai Pang
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
| | - Yuan Xu
- Engineering Research Center of Tropical Medicine Innovation and Transformation of Ministry of Education, International Joint Research Center of Human-machine Intelligent Collaborative for Tumor Precision Diagnosis and Treatment of Hainan Province, Hainan provincial key laboratory of research and development on tropical herbs, School of Pharmacy, Hainan Medical University, Haikou, 571199, China
| | - Xionghui Ma
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
| | - Shuhuai Li
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
| | - Shengfu Zhou
- Shenzhen Bay Laboratory, BayRay Innovation Center, Shenzhen, 518000, China
| | - Hai Tian
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
| | - Mingyue Wang
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
| | - Bingjun Han
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
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Chen Y, Nguyen DT, Spafford H, Herron GA. A high-throughput multilocus-amplicon sequencing panel to monitor insecticide resistance in fall armyworm (FAW) Spodoptera frugiperda (Lepidoptera: Noctuidae). PEST MANAGEMENT SCIENCE 2024; 80:1510-1522. [PMID: 37953499 DOI: 10.1002/ps.7883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/27/2023] [Accepted: 11/13/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Fall armyworm (FAW), Spodoptera frugiperda, is a highly polyphagous crop pest that has spread over the world rapidly and invaded Australia in 2020. Globally, FAW has been reported to be resistant to several insecticides permitted in Australia. Timely resistance diagnosis is critical for integrated pest management-based control of FAW in Australia. RESULTS We developed a multi-amplicon panel by next-generation sequencing (multiamplicon-seq) to identify known insecticide resistance mutations in Australian FAW with high throughput and low cost. The panel included nine known mutations causing insecticide resistance in FAW and four gene mutations causing insecticide resistance in several insect species, not yet reported in FAW. We sequenced 36 plates (96-well) in one MiSeq flow cell with easy sequencing library preparation. We found that Australian FAW carried a very high proportion of the F290V mutation in the acetylcholinesterase (AChE) gene that causes resistance to organophosphate and carbamate insecticides. Furthermore, FAW has a GABA-activated chloride channel mutation, A301Q in the RDL gene. The sequencing-based platform provided evidence of a duplication in the AChE gene. Here several single nucleotide polymorphisms (SNPs) within the 476-bp amplicon of the AChE gene demonstrated 100% heterozygosity across samples and some individuals carried two haplotypes with the F290V mutation. CONCLUSION Molecular surveillance by multiamplicon-seq will increase capacity for early detection and future resistance monitoring in highly dispersed Australian FAW. It can provide timely resistance information and has the potential to play an important role in the resistance management of FAW. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yizhou Chen
- New South Wales Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW, Australia
| | - Duong T Nguyen
- New South Wales Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW, Australia
| | - Helen Spafford
- Department of Primary Industries and Regional Development, Frank Wise Institute of Tropical Agriculture, Kununurra, WA, Australia
| | - Grant A Herron
- New South Wales Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW, Australia
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Koreki A, Michel S, Lebeaux C, Trouilh L, Délye C. Prevalence, spatial structure and evolution of resistance to acetolactate-synthase (ALS) inhibitors and 2,4-D in the major weed Papaver rhoeas (L.) assessed using a massive, country-wide sampling. PEST MANAGEMENT SCIENCE 2024; 80:637-647. [PMID: 37752099 DOI: 10.1002/ps.7791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Corn poppy (Papaver rhoeas) is the most damaging broadleaf weed in France. Massively parallel amplicon sequencing was used to investigate the prevalence, mode of evolution and spread of resistance-endowing ALS alleles in 422 populations randomly sampled throughout poppy's range in France. Bioassays were used to detect resistance to the synthetic auxin 2,4-D in 43 of these populations. RESULTS A total of 21 100 plants were analysed and 24 mutant ALS alleles carrying an amino-acid substitution involved or potentially involved in resistance were identified. The vast majority (97.6%) of the substitutions occurred at codon Pro197, where all six possible single-nucleotide non-synonymous substitutions plus four double-nucleotide substitutions were identified. Changes observed in the enzymatic properties of the mutant ALS isoforms could not explain the differences in prevalence among the corresponding alleles. Sequence read analysis showed that mutant ALS alleles had multiple, independent evolutionary origins, and could have evolved several times independently within an area of a few kilometres. Finally, 2,4-D resistance was associated with mutant ALS alleles in individual plants in one third of the populations assayed. CONCLUSION The intricate geographical mosaic of mutant ALS alleles observed is the likely result of the combination of huge population sizes, multiple independent mutation events and human-mediated spread of resistance. Our work highlights the ability of poppy populations and individual plants to accumulate different ALS alleles and as yet unknown mechanisms conferring resistance to synthetic auxins. This does not bode well for the continued use of chemical herbicides to control poppy. © 2023 Society of Chemical Industry.
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Affiliation(s)
| | | | | | - Lidwine Trouilh
- Plateforme GeT-Biopuces, TBI, Université de Toulouse, CNRS, INRAE, INSA, Genotoul, Toulouse, France
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Tang HC, Zhou YR, Zuo JF, Wang YX, Piñero JC, Peng X, Chen MH. Voltage-gated sodium channel gene mutation and P450 gene expression are associated with the resistance of Aphis spiraecola Patch (Hemiptera: Aphididae) to lambda-cyhalothrin. BULLETIN OF ENTOMOLOGICAL RESEARCH 2024; 114:49-56. [PMID: 38180110 DOI: 10.1017/s0007485323000603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Aphis spiraecola Patch is one of the most economically important tree fruit pests worldwide. The pyrethroid insecticide lambda-cyhalothrin is commonly used to control A. spiraecola. In this 2-year study, we quantified the resistance level of A. spiraecola to lambda-cyhalothrin in different regions of the Shaanxi province, China. The results showed that A. spiraecola had reached extremely high resistance levels with a 174-fold resistance ratio (RR) found in the Xunyi region. In addition, we compared the enzymatic activity and expression level of P450 genes among eight A. spiraecola populations. The P450 activity of A. spiraecola was significantly increased in five regions (Xunyi, Liquan, Fengxiang, Luochuan, and Xinping) compared to susceptible strain (SS). The expression levels of CYP6CY7, CYP6CY14, CYP6CY22, P4504C1-like, P4506a13, CYP4CZ1, CYP380C47, and CYP4CJ2 genes were significantly increased under lambda-cyhalothrin treatment and in the resistant field populations. A L1014F mutation in the sodium channel gene was found and the mutation rate was positively correlated with the LC50 of lambda-cyhalothrin. In conclusion, the levels of lambda-cyhalothrin resistance of A. spiraecola field populations were associated with P450s and L1014F mutations. Our combined findings provide evidence on the resistance mechanism of A. spiraecola to lambda-cyhalothrin and give a theoretical basis for rational and effective control of this pest species.
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Affiliation(s)
- Hong-Cheng Tang
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yu-Rong Zhou
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jun-Feng Zuo
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yi-Xuan Wang
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jaime C Piñero
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003 USA
| | - Xiong Peng
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mao-Hua Chen
- Department of Entomology, National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Key Lab Plant Protect Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
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Expression and purification of snustorr snarlik protein from Plutella xylostella. Protein Expr Purif 2023; 206:106256. [PMID: 36871763 DOI: 10.1016/j.pep.2023.106256] [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: 02/16/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023]
Abstract
Snustorr snarlik (Snsl) is a type of extracellular protein essential for insect cuticle formation and insect survival, but is absent in mammals, making it a potential selective target for pest control. Here, we successfully expressed and purified the Snsl protein of Plutella xylostella in Escherichia coli. Two truncated forms of Snsl protein, Snsl 16-119 and Snsl 16-159, were expressed as a maltose-binding protein (MBP) fusion protein and purified to a purity above 90% after a five-step purification protocol. Snsl 16-119, forming stable monomer in solution, was crystallized, and the crystal was diffracted to a resolution of ∼10 Å. Snsl 16-159, forming an equilibrium between monomer and octamer in solution, was shown to form rod-shaped particles on negative staining electron-microscopy images. Our results lay a foundation for the determination of the structure of Snsl, which would improve our understanding of the molecular mechanism of cuticle formation and related pesticide resistance and provide a template for structure-based insecticide design.
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Shen XJ, Zhang YJ, Wang SY, Chen JC, Cao LJ, Gong YJ, Pang BS, Hoffmann AA, Wei SJ. A high-throughput KASP assay provides insights into the evolution of multiple resistant mutations in populations of the two-spotted spider mite Tetranychus urticae across China. PEST MANAGEMENT SCIENCE 2023; 79:1702-1712. [PMID: 36594581 DOI: 10.1002/ps.7344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/24/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND The two-spotted spider mite (TSSM), Tetranychus urticae (Acari: Tetranychidae), is a cosmopolitan phytophagous pest in agriculture and horticulture. It has developed resistance to many acaricides by target-site mutations. Understanding the status and evolution of resistant mutations in the field is essential for resistance management. Here, we applied a high-throughput Kompetitive allele-specific polymerase chain reaction (KASP) method for detecting six mutations conferring resistance to four acaricides of the TSSM. We genotyped 3274 female adults of TSSM from 43 populations collected across China in 2017, 2020, and 2021. RESULTS The KASP genotyping of 24 testing individuals showed 99% agreement with Sanger sequencing results. KASP assays showed that most populations had a high frequency of mutations conferring avermectin (G314D and G326E) and pyridaben (H92R) resistance. The frequency of mutation conferring bifenazate (A269V and G126S) and etoxazole (I1017F) resistance was relatively low. Multiple mutations were common in the TSSM, with 70.2% and 24.6% of individuals having 2-6 and 7-10 of 10 possible resistant alleles, respectively. No loci were linked in most populations among the six mutations, indicating the development of multiple resistance is mainly by independent selection. However, G314D and I1017F on the nuclear genome deviated from Hardy-Weinberg equilibrium in most populations, indicating significant selective pressure on TSSM populations by acaricides or fitness cost of the mutations in the absence of acaricide selection. CONCLUSION Our study revealed that the high frequency of TSSMs evolved multiple resistant mutations in population and individual levels by independent selection across China, alarming for managing multiple-acaricides resistance. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xiu-Jing Shen
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yu-Jie Zhang
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | | | - Jin-Cui Chen
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Li-Jun Cao
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ya-Jun Gong
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Bin-Shuang Pang
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ary Anthony Hoffmann
- Bio21 Institute, School of BioSciences, University of Melbourne, Parkville, Victoria, Australia
| | - Shu-Jun Wei
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Shi P, Shen XJ, Chen JC, Zhang YJ, Cao LJ, Pang BS, Liu LH, Zhang MM, Hoffmann AA, Wei SJ. KASP genotyping and semi-quantitation of G275E mutation in the α6 subunit of Thrips palmi nAChR gene conferring spinetoram resistance. PEST MANAGEMENT SCIENCE 2023; 79:1777-1782. [PMID: 36627758 DOI: 10.1002/ps.7353] [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: 11/17/2021] [Revised: 12/19/2022] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Pesticide resistance is a long-standing and growing problem in the chemical control of invertebrate pests. Molecular diagnostic methods can facilitate pesticide resistance management by accurately and efficiently detecting resistant mutations and their frequency. In this study, the kompetitive allele specific PCR (KASP) approach, a technology for high-throughput single nucleotide polymorphism (SNP) genotyping, is validated as a useful method for characterizing genotypes at a pesticide-resistance locus for the first time. We focus on the spinetoram resistance mutation of G275E in the nicotinic acetylcholine receptor alpha 6 (nAChR α6) subunit gene of Thrips palmi. RESULTS Of the 341 individuals of Thrips palmi tested, 98.24% were successfully genotyped, with 100% concordance with Sanger sequencing results. We then quantitatively mixed genomic DNA of known genotypes to establish 21 DNA mixtures with a resistant allele frequency ranging from 0 to 100% at steps of 5%. The linear discriminant analysis (LDA) showed that 75.8% of original grouped cases were correctly classified; six groups had no overlap in membership (resistant allele frequency: 0%, 5%, 10-75%, 80-85%, 90-95%, and 100%). When we chose 11 pooled samples with 10% steps for LDA, 84.4% of original grouped cases were correctly classified; seven groups had no overlap in membership (0%, 10%, 20-30%, 40-70%, 80%, 90%, 100%). The results indicated that KASP applied to pooled samples may provide a semi-quantitative estimate of resistance. CONCLUSIONS Our study points to the suitability of KASP for high-throughput genotyping of genotypes affecting pesticide resistance and semi-quantitative assessments of resistance allele frequencies in populations. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Pan Shi
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Xiu-Jing Shen
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Jin-Cui Chen
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yu-Jie Zhang
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Li-Jun Cao
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Bin-Shuang Pang
- Beijing Engineering and Technique Research Center for Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Li-Hua Liu
- Beijing Engineering and Technique Research Center for Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ming-Ming Zhang
- Beijing Engineering and Technique Research Center for Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ary Anthony Hoffmann
- School of BioSciences, Bio21 Institute, University of Melbourne, Parkville, Australia
| | - Shu-Jun Wei
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Alzabib AA, Al-Sarar AS, Abobakr Y, Saleh AA. Single and Combined Mutations of Acetylcholinesterase Gene Giving Resistance to Pirimiphos-Methyl in Musca domestica Slaughterhouse Populations. INSECTS 2023; 14:218. [PMID: 36975903 PMCID: PMC10053409 DOI: 10.3390/insects14030218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/03/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The house fly Musca domestica L. (Diptera: Muscidae) is a worldwide medical and veterinary pest, causing great economic losses. Organophosphate insecticides have been widely used to control house fly populations. The main objectives of the present study were to evaluate the resistance levels of M. domestica slaughterhouse populations, collected from Riyadh, Jeddah, and Taif, against the organophosphate insecticide pirimiphos-methyl and investigate the genetic mutations of the Ace gene associated with pirimiphos-methyl resistance. The obtained data showed that there were significant differences among pirimiphos-methyl LC50 values of the studied populations, where the highest LC50 was recorded for the Riyadh population (8.44 mM), followed by Jeddah and Taif populations (2.45 mM and 1.63 mM, respectively). Seven nonsynonymous SNPs were detected in the studied house flies. The Ile239Val and Glu243Lys mutations are reported for the first time, whereas Val260Leu, Ala316Ser, Gly342Ala, Gly342Val, and Phe407Tyr were previously reported in M. domestica field populations from other countries. Considering three mutations associated with insecticide resistance, at amino acid positions 260, 342, and 407 of acetylcholinesterase polypeptide, 17 combinations were recovered in this study. Three out of these seventeen combinations were frequently found both worldwide and in the three Saudi house fly field populations, as well as their pirimiphos-methyl-surviving flies. Overall, the single and combined Ace mutations are apparently associated with pirimiphos-methyl resistance, and the obtained data can be useful in managing house fly field populations in Saudi Arabia.
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Affiliation(s)
- Ali A. Alzabib
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Ali S. Al-Sarar
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Yasser Abobakr
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
- Department of Animal Pests, Plant Protection Research Institute (PPRI), Agricultural Research Center (ARC), Alexandria 21616, Egypt
| | - Amgad A. Saleh
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
- Agricultural Genetic Engineering Research Institute (AGERI), Agriculture Research Center (ARC), Giza 12619, Egypt
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Ballu A, Despréaux P, Duplaix C, Dérédec A, Carpentier F, Walker AS. Antifungal alternation can be beneficial for durability but at the cost of generalist resistance. Commun Biol 2023; 6:180. [PMID: 36797413 PMCID: PMC9935548 DOI: 10.1038/s42003-023-04550-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
The evolution of resistance to pesticides is a major burden in agriculture. Resistance management involves maximizing selection pressure heterogeneity, particularly by combining active ingredients with different modes of action. We tested the hypothesis that alternation may delay the build-up of resistance not only by spreading selection pressure over longer periods, but also by decreasing the rate of evolution of resistance to alternated fungicides, by applying an experimental evolution approach to the economically important crop pathogen Zymoseptoria tritici. Our results show that alternation is either neutral or slows the overall resistance evolution rate, relative to continuous fungicide use, but results in higher levels of generalism in evolved lines. We demonstrate that the nature of the fungicides, and therefore their relative intrinsic risk of resistance may underly this trade-off, more so than the number of fungicides and the rhythm of alternation. This trade-off is also dynamic over the course of resistance evolution. These findings open up new possibilities for tailoring resistance management effectively while optimizing interplay between alternation components.
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Affiliation(s)
- Agathe Ballu
- grid.507621.7Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Philomène Despréaux
- grid.507621.7Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Clémentine Duplaix
- grid.507621.7Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Anne Dérédec
- grid.507621.7Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Florence Carpentier
- grid.507621.7Université Paris-Saclay, INRAE, UR MaIAGE, 78350 Jouy-en-Josas, France ,grid.417885.70000 0001 2185 8223AgroParisTech, 91120 Palaiseau, France
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Masier S, Taudière A, Roy LJM, Carrasco D, Barnagaud JY, Planchon C, Soulié AS, Sleeckx N, Roy L. High-throughput behavioral phenotyping of tiny arthropods: Chemosensory traits in a mesostigmatic hematophagous mite. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:46-62. [PMID: 36052497 PMCID: PMC10087610 DOI: 10.1002/jez.2651] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 12/15/2022]
Abstract
Pest management using attractive and/or repellent semiochemicals is a key alternative to synthetic insecticides. Its implementation requires a good understanding of the intra- and interspecific chemical interactions of arthropod pests, their interactions with their abiotic environment, as well as their evolutionary dynamics. Although mites include many pest species and biocontrol agents of economic importance in agriculture, their chemical ecology is largely understudied compared to insects. We developed a high-throughput ethomics system to analyze these small arthropods and conducted a study on Dermanyssus gallinae, a problematic poultry parasite in the egg industry. Our purpose was to elucidate the role played by host-derived odorants (synthetic kairomone) and conspecific odorants (mite body odors) in D. gallinae. After validating our nanocomputer controlled olfactometric system with volatile semiochemicals of known biological activity, we characterized response traits to kairomonal and/or pheromonal volatile blends in mites from different populations. We were able to accurately characterize the repulsion or attraction behaviors in >1000 individual specimens in a standardized way. Our results confirm the presence of a volatile aggregation pheromone emitted by D. gallinae and bring new elements to the effect of odor source presentation. Our results also confirm the attractive effect on Dermanyssus gallinae of a blend of volatile compounds contained in hen odor, while highlighting a repellent effect at high concentration. Significant interindividual and interpopulation variation was noted particularly in responses to synthetic kairomone. This information lays a valuable foundation for further exploring the emergence risk of resistance to semiochemicals.
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Affiliation(s)
- Stefano Masier
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Adrien Taudière
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | | | - David Carrasco
- MiVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Jean-Yves Barnagaud
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Camille Planchon
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Anne-Sophie Soulié
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | | | - Lise Roy
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
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11
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Yu Z, Meng F, Ren J, Gao W, Liu X, Xiong L, Yang N, Li Y, Li Z, Fan Z. 3D-QSAR Directed Discovery of Novel Halogenated Phenyl 3-Trifluoroethoxypyrazole Containing Ultrahigh Active Insecticidal Anthranilic Diamides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15665-15681. [PMID: 36503247 DOI: 10.1021/acs.jafc.2c05738] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Pests are one of the major factors causing crop damage and food security problems worldwide. Based on our previous studies on the discovery of insecticidal leads targeting the ryanodine receptors (RyRs), a three-dimensional quantitative structure-activity relationship (3D-QSAR) model was established to design and synthesize a series of anthranilic diamides containing a halogenated phenyl 3-trifluoroethoxypyrazole moiety. The preliminary bioassays disclosed that IIb, IIIb, and IIIf against Mythimna separata showed comparable activity to chloranthraniliprole (LC50: 0.16, 0.16, 0.14, and 0.13 mg·L-1, respectively). More than half of the target compounds displayed good activity against Plutella xylostella, where IIIf was the most active compound, 25 times more active than chloranthraniliprole (LC50: 6.0 × 10-6 versus 1.5 × 10-4 mg·L-1). For Spodoptera frugiperda, IIIf displayed slightly inferior potency to chlorantraniliprole (LC50: 0.47 versus 0.31 mg·L-1). For RyR mutants of S. frugiperda (G4891E, I4734M), compound IIIf could show higher affinity than chlorantraniliprole according to the binding mode and energy in molecular docking experiments. Calcium imaging technique, molecular docking, density functional theory calculations, and electrostatic potential studies validated that the RyR was the target of the most active candidate IIIf, which deserves further development.
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Affiliation(s)
- Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Fanfei Meng
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Jinzhou Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Wei Gao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Xiaoyu Liu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, PR China
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12
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Liu Y, Zhang Y, Karmaker PG, Tang Y, Zhang L, Huo F, Wang Y, Yang X. Dual-Color 2D Lead-Organic Framework with Two-Fold Interlocking Structures for the Detection of Nitrofuran Antibiotics and 2,6-Dichloro-4-nitroaniline. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51531-51544. [PMID: 36342338 DOI: 10.1021/acsami.2c15440] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The misuse of organic pollutants such as nitrofuran antibiotics (NFAs) and 2,6-dichloro-4-nitroaniline (DCN) has become a hot topic of global concern, and developing rapid, efficient, and accurate techniques for detecting NFAs and pesticides in water is a major challenge. Here, we designed a novel lead-based anion 2D metal-organic framework (MOF){[(CH3)2NH2]2[Pb(TCBPE)(H2O)2]}n (F3) with interlocking structures, in which TCBPE stands for 1,1,2,2-tetra(4-carboxylbiphenyl)ethylene. Powder X-ray diffraction and thermogravimetric analysis revealed that F3 has excellent chemical and solvent stability. It is worth noting that F3 has a grinding discoloration effect. The solvent-protected grinding approach achieved F3B with a high quantum yield (QY = 73.77%) and blue fluorescence, while the direct grinding method produced F3Y with a high quantum yield (QY = 37.27%) and yellow-green fluorescence. Importantly, F3B can detect NFAs in water rapidly and sensitively while remaining unaffected by other antibiotics. F3Y can identify DCN in water quickly and selectively while remaining unchanged by other pesticides. F3B demonstrated high selectivity and rapid response to NFAs at a limit of detection (LOD) as low as 0.26 μM, while F3Y indicated high selectivity and responded quickly to DCN in water at an LOD as low as 0.14 μM. The method was successfully applied to detect NFAs in actual water samples of the fish tanks and ponds as well as the pesticide DCN in soil samples. The recovery rates were 97.0-105.15% and 102.2-106.48%, and the relative standard deviations were 0.63-1.45% and 0.29-1.69%, respectively. In addition, F3B and F3Y can be made into fluorescent test papers for the visual detection of NFAs and DCN, respectively. Combined with experiments and density functional theory calculations, the mechanism of fluorescence quenching of MOFs by target analytes was also revealed.
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Affiliation(s)
- Yuhang Liu
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro/Nano Intelligent Sensing, Neijiang Normal University, Neijiang 641100, P. R. China
| | - Yi Zhang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
| | - Pran Gopal Karmaker
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
| | - Yuting Tang
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro/Nano Intelligent Sensing, Neijiang Normal University, Neijiang 641100, P. R. China
| | - Lilei Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Feng Huo
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro/Nano Intelligent Sensing, Neijiang Normal University, Neijiang 641100, P. R. China
| | - Ya Wang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
| | - Xiupei Yang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, P. R. China
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Kildea S, Hellin P, Heick TM, Hutton F. Baseline sensitivity of European Zymoseptoria tritici populations to the complex III respiration inhibitor fenpicoxamid. PEST MANAGEMENT SCIENCE 2022; 78:4488-4496. [PMID: 35797347 PMCID: PMC9796354 DOI: 10.1002/ps.7067] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Fenpicoxamid is a recently developed fungicide belonging to the quinone inside inhibitor (QiI) group. This is the first fungicide within this group to be active against the Zymoseptoria tritici, which causes Septoria tritici blotch on wheat. The occurrence of pre-existing resistance mechanisms was monitored, using sensitivity assays and Illumina sequencing, in Z. tritici populations sampled in multiple European countries before the introduction of fenpicoxamid. RESULTS Although differences in sensitivity to all three fungicides tested (fenpicoxamid, fentin chloride and pyraclostrobin) existed between the isolate collections, no alterations associated with QiI resistance were detected. Among the isolates, a range in sensitivity to fenpicoxamid was observed (ratio between most sensitive/least sensitive = 53.1), with differences between the most extreme isolates when tested in planta following limited fenpicoxamid treatment. Sensitivity assays using fentin chloride suggest some of the observed differences in fenpicoxamid sensitivity are associated with multi-drug resistance. Detailed monitoring of the wider European population using Illumina-based partial sequencing of the Z. tritici also only detected the presence of G143A, with differences in frequencies of this alteration observed across the region. CONCLUSIONS This study provides a baseline sensitivity for European Z. tritici populations to fenpicoxamid. Target-site resistance appears to be limited or non-existing in European Z. tritici populations prior to the introduction of fenpicoxamid. Non-target site resistance mechanisms exist, but their impact in the field is predicted to be limited. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Steven Kildea
- Teagasc, The Agriculture and Food Development AuthorityCarlowIreland
| | - Pierre Hellin
- Plant and Forest Health Unit, Walloon Agricultural Research CenterGemblouxBelgium
| | - Thies M. Heick
- Department of AgroecologyAarhus UniversitySlagelseDenmark
| | - Fiona Hutton
- Teagasc, The Agriculture and Food Development AuthorityCarlowIreland
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14
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Zhou C, Zhang L, Yang Z, Pan Q, He Z, Wang C, Liu Y, Song S, Yang Z, Chen Y, Li P. Synthesis and characterization of carboxymethyl chitosan/epoxidized soybean oil based conjugate catalyed by UV light, and its application as drug carrier for fusarium wilt. Int J Biol Macromol 2022; 212:11-19. [DOI: 10.1016/j.ijbiomac.2022.05.118] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 01/19/2023]
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15
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Mei LC, Chen HM, Dong AY, Huang GY, Liu YW, Zhang X, Wang W, Hao GF, Yang GF. Pesticide Informatics Platform (PIP): An International Platform for Pesticide Discovery, Residue, and Risk Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6617-6623. [PMID: 35617526 DOI: 10.1021/acs.jafc.2c02141] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pesticides are widely used agrochemicals for crop protection. The need for novel pesticides becomes urgent as a result of the emergence of resistance and environmental toxicity. Pesticide informatics has been applied in different phase processes of pesticide target identification, active ingredient design, and impact evaluation. However, these valuable resources are scattered over the literature and web, limiting their availability. Here, we summarize and connect research on pesticide informatics resources. A pesticide informatics platform (PIP) was constructed to share these tools. We finally discuss the future direction of pesticide informatics, including pesticide contamination. We expect to share the pesticide informatics approaches and stimulate further research.
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Affiliation(s)
- Long-Can Mei
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Hui-Min Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - An-Yu Dong
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, Guizhou 550000, People's Republic of China
| | - Guang-Yi Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Ying-Wei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, Guizhou 550000, People's Republic of China
| | - Xiao Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, Guizhou 550000, People's Republic of China
| | - Wei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, Guizhou 550000, People's Republic of China
| | - Ge-Fei Hao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, Guizhou 550000, People's Republic of China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
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16
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Alimova AA, Sitnikov VV, Pogorelov DI, Boyko ON, Vitkalova IY, Gureev AP, Popov VN. High Doses of Pesticides Induce mtDNA Damage in Intact Mitochondria of Potato In Vitro and Do Not Impact on mtDNA Integrity of Mitochondria of Shoots and Tubers under In Vivo Exposure. Int J Mol Sci 2022; 23:ijms23062970. [PMID: 35328391 PMCID: PMC8955856 DOI: 10.3390/ijms23062970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 11/16/2022] Open
Abstract
It is well known that pesticides are toxic for mitochondria of animals. The effect of pesticides on plant mitochondria has not been widely studied. The goal of this research is to study the impact of metribuzin and imidacloprid on the amount of damage in the mtDNA of potato (Solanum tuberosum L.) in various conditions. We developed a set of primers to estimate mtDNA damage for the fragments in three chromosomes of potato mitogenome. We showed that both metribuzin and imidacloprid considerably damage mtDNA in vitro. Imidacloprid reduces the rate of seed germination, but does not impact the rate of the growth and number of mtDNA damage in the potato shoots. Field experiments show that pesticide exposure does not induce change in aconitate hydratase activity, and can cause a decrease in the rate of H2O2 production. We can assume that the mechanism of pesticide-induced mtDNA damage in vitro is not associated with H2O2 production, and pesticides as electrophilic substances directly interact with mtDNA. The effect of pesticides on the integrity of mtDNA in green parts of plants and in crop tubers is insignificant. In general, plant mtDNA is resistant to pesticide exposure in vivo, probably due to the presence of non-coupled respiratory systems in plant mitochondria.
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Affiliation(s)
- Alina A. Alimova
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
| | - Vadim V. Sitnikov
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia
| | - Daniil I. Pogorelov
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
| | - Olga N. Boyko
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
| | - Inna Y. Vitkalova
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia
| | - Artem P. Gureev
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia
- Correspondence:
| | - Vasily N. Popov
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia; (A.A.A.); (V.V.S.); (D.I.P.); (O.N.B.); (I.Y.V.); (V.N.P.)
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia
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17
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Comprehensive Detoxification Mechanism Assessment of Red Imported Fire Ant ( Solenopsis invicta) against Indoxacarb. Molecules 2022; 27:molecules27030870. [PMID: 35164134 PMCID: PMC8839056 DOI: 10.3390/molecules27030870] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 02/06/2023] Open
Abstract
The red imported fire ant (Solenopsis invicta) is one of the deadliest invasive ant species that threatens the world by disrupting biodiversity, important functions within a natural ecosystem, and community structure. They are responsible for huge economic losses in the infested countries every year. Synthetic insecticides, especially indoxacarb, have been broadly used to control S. invicta for many years. However, the biochemical response of S. invicta to indoxacarb remains largely undiscovered. Here, we used the sublethal doses of indoxacarb on the S. invicta collected from the eight different cities of Southern China. The alteration in the transcriptome profile of S. invicta following sublethal dosages of indoxacarb was characterized using high-throughput RNA-seq technology. We created 2 libraries, with 50.93 million and 47.44 million clean reads for indoxacarb treatment and control, respectively. A total of 2018 unigenes were regulated after insecticide treatment. Results indicated that a total of 158 differentially expressed genes (DEGs) were identified in the indoxacarb-treated group, of which 100 were significantly upregulated and 58 were downregulated, mostly belonging to the detoxification enzymes, such as AChE, CarE, and GSTs. Furthermore, results showed that most of these DEGs were found in several KEGG pathways, including steroid biosynthesis, other drug metabolizing enzymes, glycerolipid metabolism, chemical carcinogenesis, drug-metabolizing cytochrome P450, glutathione metabolism, glycerophospholipid metabolism, glycolysis/gluconeogenesis, and metabolism of xenobiotics. Together, these findings indicated that indoxacarb causes significant alteration in the transcriptome profile and signaling pathways of S. invicta, providing a foundation for further molecular inquiry.
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Mavridis K, Papapostolou KM, Riga M, Ilias A, Michaelidou K, Bass C, Van Leeuwen T, Tsagkarakou A, Vontas J. Multiple TaqMan qPCR and droplet digital PCR (ddPCR) diagnostics for pesticide resistance monitoring and management, in the major agricultural pest Tetranychus urticae. PEST MANAGEMENT SCIENCE 2022; 78:263-273. [PMID: 34480408 DOI: 10.1002/ps.6632] [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: 07/07/2021] [Revised: 08/16/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Decisions on which pesticide to use in agriculture are expected to become more difficult, as the number of available chemicals is decreasing. For Tetranychus urticae (T. urticae), a major pest for which a number of candidate markers for pesticide resistance are in place, molecular diagnostics could support decision-making for the rational use of acaricides. RESULTS A suite of 12 TaqMan qPCR assays [G314D (GluCl1), G326E, I321T (GluCl3), G119S, F331W (Ace-1), H92R (PSST), L1024V, F1538I (VGSC), I1017F (CHS1), G126S, S141F, P262T (cytb)], were validated against Sanger-sequencing, and subsequently adapted for use with the ddPCR technology. The concordance correlation coefficient between the actual and ddPCR measured mutant allelic frequencies was 0.995 (95% CI = 0.991-0.998), and no systematic, proportional, or random differences were detected. The achieved Limit of Detection (LoD) was 0.1% (detection of one mutant in a background of 999 wild type mites). The ddPCR assay panel was then assessed in terms of agreement with phenotypic resistance, through a pilot application in field populations from Crete, with strong correlation and thus predictive and diagnostic value of the molecular assays in some cases (e.g., etoxazole and abamectin resistance). Molecular diagnostics were able to capture incipient resistance that was otherwise missed by phenotypic bioassays. The molecular and phenotypic resistance screening of T. urticae field populations from Crete, revealed both multi-resistant and susceptible populations. CONCLUSION The highly sensitive T. urticae molecular diagnostic platforms developed in this study could prove a valuable tool for pesticide resistance management. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Konstantinos Mavridis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Kyriaki Maria Papapostolou
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Biology, University of Crete, Heraklion, Greece
| | - Maria Riga
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Aris Ilias
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Kleita Michaelidou
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Heraklion, Greece
| | - Chris Bass
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Penryn, UK
| | - Thomas Van Leeuwen
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Anastasia Tsagkarakou
- Institute of Olive Tree, Subtropical Crops and Viticulture, Hellenic Agricultural Organization "DIMITRA", Heraklion, Greece
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, Athens, Greece
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19
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Margus A, Piiroinen S, Lehmann P, Grapputo A, Gilbert L, Chen YH, Lindström L. Sequence variation and regulatory variation in acetylcholinesterase genes contribute to insecticide resistance in different populations of Leptinotarsa decemlineata. Ecol Evol 2021; 11:15995-16005. [PMID: 34824806 PMCID: PMC8601895 DOI: 10.1002/ece3.8269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 01/02/2023] Open
Abstract
Although insect herbivores are known to evolve resistance to insecticides through multiple genetic mechanisms, resistance in individual species has been assumed to follow the same mechanism. While both mutations in the target site insensitivity and increased amplification are known to contribute to insecticide resistance, little is known about the degree to which geographic populations of the same species differ at the target site in a response to insecticides. We tested structural (e.g., mutation profiles) and regulatory (e.g., the gene expression of Ldace1 and Ldace2, AChE activity) differences between two populations (Vermont, USA and Belchow, Poland) of the Colorado potato beetle, Leptinotarsa decemlineata in their resistance to two commonly used groups of insecticides, organophosphates, and carbamates. We established that Vermont beetles were more resistant to azinphos-methyl and carbaryl insecticides than Belchow beetles, despite a similar frequency of resistance-associated alleles (i.e., S291G) in the Ldace2 gene. However, the Vermont population had two additional amino acid replacements (G192S and F402Y) in the Ldace1 gene, which were absent in the Belchow population. Moreover, the Vermont population showed higher expression of Ldace1 and was less sensitive to AChE inhibition by azinphos-methyl oxon than the Belchow population. Therefore, the two populations have evolved different genetic mechanisms to adapt to organophosphate and carbamate insecticides.
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Affiliation(s)
- Aigi Margus
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
| | - Saija Piiroinen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
| | - Philipp Lehmann
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
- Department of ZoologyStockholm UniversityStockholmSweden
- Zoological Institute and MuseumGreifswald UniversityGreifswaldGermany
| | | | | | - Yolanda H. Chen
- Department of Plant and Soil ScienceUniversity of VermontBurlingtonVermontUSA
| | - Leena Lindström
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
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20
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Loubet I, Caddoux L, Fontaine S, Michel S, Pernin F, Barrès B, Le Corre V, Délye C. A high diversity of mechanisms endows ALS-inhibiting herbicide resistance in the invasive common ragweed (Ambrosia artemisiifolia L.). Sci Rep 2021; 11:19904. [PMID: 34620913 PMCID: PMC8497474 DOI: 10.1038/s41598-021-99306-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/22/2021] [Indexed: 01/21/2023] Open
Abstract
Ambrosia artemisiifolia L. (common ragweed) is a globally invasive, allergenic, troublesome arable weed. ALS-inhibiting herbicides are broadly used in Europe to control ragweed in agricultural fields. Recently, ineffective treatments were reported in France. Target site resistance (TSR), the only resistance mechanism described so far for ragweed, was sought using high-throughput genotyping-by-sequencing in 213 field populations randomly sampled based on ragweed presence. Additionally, non-target site resistance (NTSR) was sought and its prevalence compared with that of TSR in 43 additional field populations where ALS inhibitor failure was reported, using herbicide sensitivity bioassay coupled with ALS gene Sanger sequencing. Resistance was identified in 46 populations and multiple, independent resistance evolution demonstrated across France. We revealed an unsuspected diversity of ALS alleles underlying resistance (9 amino-acid substitutions involved in TSR detected across 24 populations). Remarkably, NTSR was ragweed major type of resistance to ALS inhibitors. NTSR was present in 70.5% of the resistant plants and 74.1% of the fields harbouring resistance. A variety of NTSR mechanisms endowing different resistance patterns evolved across populations. Our study provides novel data on ragweed resistance to herbicides, and emphasises that local resistance management is as important as mitigating gene flow from populations where resistance has arisen.
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Affiliation(s)
- Ingvild Loubet
- UMR Agroécologie, INRAE, Dijon, France.,USC CASPER, Anses, INRAE, Université de Lyon, Lyon, France
| | | | | | | | | | - Benoit Barrès
- USC CASPER, Anses, INRAE, Université de Lyon, Lyon, France
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21
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Fouché G, Michel T, Lalève A, Wang NX, Young DH, Meunier B, Debieu D, Fillinger S, Walker AS. Directed evolution predicts cytochrome b G37V target site modification as probable adaptive mechanism towards the QiI fungicide fenpicoxamid in Zymoseptoria tritici. Environ Microbiol 2021; 24:1117-1132. [PMID: 34490974 DOI: 10.1111/1462-2920.15760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 02/06/2023]
Abstract
Acquired resistance is a threat to antifungal efficacy in medicine and agriculture. The diversity of possible resistance mechanisms and highly adaptive traits of pathogens make it difficult to predict evolutionary outcomes of treatments. We used directed evolution as an approach to assess the resistance risk to the new fungicide fenpicoxamid in the wheat pathogenic fungus Zymoseptoria tritici. Fenpicoxamid inhibits complex III of the respiratory chain at the ubiquinone reduction site (Qi site) of the mitochondrially encoded cytochrome b, a different site than the widely used strobilurins which inhibit the same complex at the ubiquinol oxidation site (Qo site). We identified the G37V change within the cytochrome b Qi site as the most likely resistance mechanism to be selected in Z. tritici. This change triggered high fenpicoxamid resistance and halved the enzymatic activity of cytochrome b, despite no significant penalty for in vitro growth. We identified negative cross-resistance between isolates harbouring G37V or G143A, a Qo site change previously selected by strobilurins. Double mutants were less resistant to both QiIs and quinone outside inhibitors compared to single mutants. This work is a proof of concept that experimental evolution can be used to predict adaptation to fungicides and provides new perspectives for the management of QiIs.
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Affiliation(s)
- Guillaume Fouché
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, 78850, France.,Corteva Agriscience, 9330 Zionsville Road, Indianapolis, IN, 46268, USA
| | - Thomas Michel
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - Anaïs Lalève
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, 78850, France
| | - Nick X Wang
- Corteva Agriscience, 9330 Zionsville Road, Indianapolis, IN, 46268, USA
| | - David H Young
- Corteva Agriscience, 9330 Zionsville Road, Indianapolis, IN, 46268, USA
| | - Brigitte Meunier
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - Danièle Debieu
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, 78850, France
| | - Sabine Fillinger
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, 78850, France
| | - Anne-Sophie Walker
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, 78850, France
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22
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Aboelhadid SM, Youssef IMI. Control of red flour beetle (Tribolium castaneum) in feeds and commercial poultry diets via using a blend of clove and lemongrass extracts. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:30111-30120. [PMID: 33582963 DOI: 10.1007/s11356-021-12426-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
The insects' infestation decreases the nutritive value of the stored grains and causes losses in its weight, quality, or economic values. The aim of the present study was to investigate the efficiency of a natural product of clove and lemongrass extracts in controlling of red flour beetle (Tribolium castaneum) in different feedstuffs and commercial poultry diets. Different concentrations of the tested product (5, 10, 20, 50, 100 mg) were mixed with 10 g of different feedstuffs and poultry diets, and incubated at different time points. The percent repellency (PR), toxicity effect, and antifeedant activity of the plant extracts compound were assessed. The PR was detected depending on the choice method. It was found that the PR was dose and time dependent. The highest doses (50 or 100 mg/10 g feed) achieved the highest repellency effect reaching 70% at 24 h post-application (PA). The minimal PR was reported by the lowest dose of 5 mg/10 g feed reaching 50% at 24 h PA. Moreover, the PR was found to decrease by time. The toxicity effect of this natural product on T. castaneum was cumulative, not acute, in which it was recorded after 1 month of application. Besides, this effect needs high doses of the product (at dose 500 or 1000 mg/50 g feed). The used product achieved a clear antifeedant activity against T. castaneum, as the feeding deterrent index (FDI %) for corn grains was 98.5% at 1.0 and 2.0% concentration, whereas for wheat grains there was a significant difference between both concentration (96.0 vs. 74.4%). In addition, the weight loss of control corn and wheat grains was higher than the treated ones, and it was about 3.15% and 2.0% per month for corn and wheat, respectively. In conclusion, the clove and lemongrass extracts had a repellency effect reaching to 70%. Moreover, it had a lethal effect on T. castaneum. In addition, it can reduce the weight loss of the infested feeds and consequently increasing its FDI %. Therefore, the clove and lemongrass extract blend can be used to protect the feedstuffs from the damage by this insect.
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Affiliation(s)
- Shawky M Aboelhadid
- Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | - Ibrahim M I Youssef
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
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23
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Hawkins NJ, Fraaije BA. Contrasting levels of genetic predictability in the evolution of resistance to major classes of fungicides. Mol Ecol 2021; 30:5318-5327. [PMID: 33706414 DOI: 10.1111/mec.15877] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 03/05/2021] [Indexed: 12/14/2022]
Abstract
The evolution of resistance has been seen across all major classes of xenobiotics, including antimicrobial drugs and agricultural pesticides. This repeated emergence of resistance is a case of phenotypic parallel evolution, but often the parallelism extends to the molecular level too, with multiple species gaining the same mutation in response to the same chemical treatment. We review the degree of repeatability in target-site resistance mutations affecting different classes of site-specific agricultural fungicides used in crop protection, comparing the extent to which resistance in different pathogen species has evolved via the same or different mutations. For all major fungicide target sites, substantial levels of molecular parallel evolution can be seen, with at least one mutation recurring in over 50% of species. Target-site mutations appear to be most repeatable in cytochrome b, target site of quinone-outside inhibitor fungicides, and least predictable for CYP51, target site of the azoles. Intermediate levels of repeatability are seen for the MBC target site β-tubulin, and the SDHI target site succinate dehydrogenase. Repeatability may be lower where there are selective trade-offs between resistance and pleiotropic fitness penalties, or differing levels of cross-resistance across members of a fungicide class; or where single mutations confer only partial resistance, and epistatic interactions between multiple mutations result in a rugged fitness landscape. This affects the predictive power of in vitro mutation studies, and has practical implications for resistance monitoring strategies and diagnostic methods.
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Affiliation(s)
- Nichola J Hawkins
- Biointeractions and Crop Protection Department, Rothamsted Research, Harpenden, Hertfordshire, UK.,NIAB, Cambridge, UK
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24
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Ibáñez D, González-García MB, Hernández-Santos D, Fanjul-Bolado P. Detection of dithiocarbamate, chloronicotinyl and organophosphate pesticides by electrochemical activation of SERS features of screen-printed electrodes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119174. [PMID: 33234478 DOI: 10.1016/j.saa.2020.119174] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/27/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
Enhancement of Raman intensity due to the electrochemical surface-enhanced Raman scattering (EC-SERS) effect is an interesting alternative to overcome the lack of sensitivity traditionally associated with Raman spectroscopy. Furthermore, activation of metallic screen-printed electrodes (SPEs) by electrochemical route leads to the reproducible generation of nanostructures with excellent SERS properties. EC-SERS procedure proposed in this work for the detection of several pesticides (thiram, imidacloprid and chlorpyrifos) with different nature, uses gold SPEs as SERS substrates, but also includes a preconcentration step as the initial and essential stage. Taking into account the small volume of solution employed, only 60 µL, the preconcentration cannot be performed for more than 15 min in order to ensure the proper contact of the solution with WE, RE and CE. Furthermore, selected temperature, 34 °C, is not very high to allow the exhaustive control of the drop volume. Optimization of preconcentration parameters (time and temperature) displays a crucial step, particularly in the detection of low concentrations of pesticides, because it will provide higher Raman intensity in EC-SERS experiments. After the initial step, gold SPEs were electrochemically activated by cyclic voltammetry, allowing the detection of very low concentration (µg·L-1) of pesticides due to the generation of fresh nanostructures with SERS effect.
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Affiliation(s)
- David Ibáñez
- Metrohm DropSens, S.L. Vivero Ciencias de la Salud, C/Colegio Santo Domingo de Guzmán s/n, 33010 Oviedo (Asturias), Spain.
| | - María Begoña González-García
- Metrohm DropSens, S.L. Vivero Ciencias de la Salud, C/Colegio Santo Domingo de Guzmán s/n, 33010 Oviedo (Asturias), Spain
| | - David Hernández-Santos
- Metrohm DropSens, S.L. Vivero Ciencias de la Salud, C/Colegio Santo Domingo de Guzmán s/n, 33010 Oviedo (Asturias), Spain
| | - Pablo Fanjul-Bolado
- Metrohm DropSens, S.L. Vivero Ciencias de la Salud, C/Colegio Santo Domingo de Guzmán s/n, 33010 Oviedo (Asturias), Spain.
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25
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Blouquy L, Mottet C, Olivares J, Plantamp C, Siegwart M, Barrès B. How varying parameters impact insecticide resistance bioassay: An example on the worldwide invasive pest Drosophila suzukii. PLoS One 2021; 16:e0247756. [PMID: 33667239 PMCID: PMC7935283 DOI: 10.1371/journal.pone.0247756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 02/12/2021] [Indexed: 11/18/2022] Open
Abstract
Monitoring pesticide resistance is essential for effective and sustainable agricultural practices. Bioassays are the basis for pesticide-resistance testing, but devising a reliable and reproducible method can be challenging because these tests are carried out on living organisms. Here, we investigated five critical parameters and how they affected the evaluation of resistance to the organophosphate phosmet or the pyrethroid lambda-cyhalothrin using a tarsal-contact protocol on Drosophila suzukii, a worldwide invasive pest. Three of the parameters were related to insect biology: (i) sex, (ii) age of the imago (adult stage) and (iii) genetic diversity of the tested population. The two remaining parameters were linked to the experimental setup: (iv) the number of individuals tested per dose and (v) the duration of exposure to the active ingredient. Results showed that response to insecticide differed depending on sex, males being twice as susceptible to phosmet as females. Age principally affected young females' susceptibility to phosmet, because 0-24 hour-old flies were twice as susceptible as 24-48 hour-old and 72-96 hour-old females. Genetic diversity had no observable effect on resistance levels. The precision and accuracy of the median lethal dose (LD50) were greatly affected by the number of individuals tested per dose with a threshold effect. Finally, optimal duration of exposure to the active ingredient was 24 h, as we found an underestimation of mortality when assessed between 1 and 5 h after exposure to lambda-cyhalothrin. None of the main known point mutations on the para sodium channel gene associated with a knockdown effect were observed. Our study demonstrates the importance of calibrating the various parameters of a bioassay to develop a reliable method. It also provides a valuable and transferable protocol for monitoring D. suzukii resistance worldwide.
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Affiliation(s)
- Lucile Blouquy
- Université de Lyon, Anses, INRAE, USC CASPER, Lyon, France
- PSH - Unité de recherche Plantes et Systèmes de Culture Horticoles, INRAE, Avignon, France
| | - Claire Mottet
- Université de Lyon, Anses, INRAE, USC CASPER, Lyon, France
| | - Jérôme Olivares
- PSH - Unité de recherche Plantes et Systèmes de Culture Horticoles, INRAE, Avignon, France
| | | | - Myriam Siegwart
- PSH - Unité de recherche Plantes et Systèmes de Culture Horticoles, INRAE, Avignon, France
| | - Benoit Barrès
- Université de Lyon, Anses, INRAE, USC CASPER, Lyon, France
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26
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Rapid in situ quantification of the strobilurin resistance mutation G143A in the wheat pathogen Blumeria graminis f. sp. tritici. Sci Rep 2021; 11:4526. [PMID: 33633193 PMCID: PMC7907364 DOI: 10.1038/s41598-021-83981-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/08/2021] [Indexed: 11/25/2022] Open
Abstract
As the incidence of fungicide resistance in plant pathogens continues to increase, control of diseases and the management of resistance would be greatly aided by rapid diagnostic methods. Quantitative allele-specific PCR (ASqPCR) is an ideal technique for the in-field analysis of fungicide resistance as it can quantify the frequency of mutations in fungicide targets. We have applied this technique to the fungal pathogen Blumeria graminis f. sp. tritici (Bgt), the causal agent of wheat powdery mildew. In Australia, strobilurin-resistant Bgt was first discovered in 2016. Molecular analysis revealed a nucleotide transversion in the cytochrome b (cytb) gene in the cytochrome bc1 enzyme complex, resulting in a substitution of alanine for glycine at position 143 (G143A). We have developed an in-field ASqPCR assay that can quantify both the resistant (A143) and sensitive (G143) cytb alleles down to 1.67% in host and Bgt DNA mixtures, within 90 min of sample collection. The in situ analysis of samples collected during a survey in Tasmania revealed A143 frequencies ranging between 9–100%. Validation of the analysis with a newly developed laboratory based digital PCR assay found no significant differences between the two methods. We have successfully developed an in-field quantification method, for a strobilurin-resistant allele, by pairing the ASqPCR assay on a lightweight qPCR instrument with a quick DNA extraction method. The deployment of these type of methodologies in the field can contribute to the effective in-season management of fungicide resistance.
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27
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Shi P, Guo SK, Gao YF, Chen JC, Gong YJ, Tang MQ, Cao LJ, Li H, Hoffmann AA, Wei SJ. Association Between Susceptibility of Thrips palmi to Spinetoram and Frequency of G275E Mutation Provides Basis for Molecular Quantification of Field-Evolved Resistance. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:339-347. [PMID: 33399196 DOI: 10.1093/jee/toaa314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 06/12/2023]
Abstract
Putative mechanisms underlying spinosyn resistance have been identified in controlled studies on many species; however, mechanisms underlying field-evolved resistance and the development of a molecular diagnostic method for monitoring field resistance have lagged behind. Here, we examined levels of resistance of melon thrips, Thrips palmi Karny (Thysanoptera:Thripidae), to spinetoram as well as target site mutations in field populations across China to identify potential mechanisms and useful molecular markers for diagnostic and quantifying purposes. In resistant populations, we identified the G275E mutation, which has previously been linked to spinosyns resistance, and F314V mutation, both located in the α6 subunit of the nicotinic acetylcholine receptor. There was a strong correlation between levels of spinetoram resistance and allele frequency of G275E mutation in field-collected populations (r2 = 0.84) and those reared under laboratory conditions for two to five generations (r2 = 0.91). LC50 ranged from 0.12 to 0.66 mg/liter in populations without G275E mutation, whereas it ranged from 33.12 to 39.91 mg/liter in most populations with a G275E mutation frequency more than 90%. Our results indicate that the field-evolved resistance of T. palmi to spinetoram in China is mainly conferred by the G275E mutation. The frequency of the G275E mutation provides a useful diagnostic for quantifying resistance levels in field populations of T. palmi.
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Affiliation(s)
- Pan Shi
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Shao-Kun Guo
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
| | - Yong-Fu Gao
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
| | - Jin-Cui Chen
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
| | - Ya-Jun Gong
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
| | - Meng-Qing Tang
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Li-Jun Cao
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
| | - Hu Li
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Ary Anthony Hoffmann
- Pest and Environmental Adaptation Research Group, School of BioSciences, Bio21 Institute, University of Melbourne, Parkville, VIC, Australia
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Haidian District, Beijing, China
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
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Fungicide Resistance Evolution and Detection in Plant Pathogens: Plasmopara viticola as a Case Study. Microorganisms 2021; 9:microorganisms9010119. [PMID: 33419171 PMCID: PMC7825580 DOI: 10.3390/microorganisms9010119] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
The use of single-site fungicides to control plant pathogens in the agroecosystem can be associated with an increased selection of resistance. The evolution of resistance represents one of the biggest challenges in disease control. In vineyards, frequent applications of fungicides are carried out every season for multiple years. The agronomic risk of developing fungicide resistance is, therefore, high. Plasmopara viticola, the causal agent of grapevine downy mildew, is a high risk pathogen associated with the development of fungicide resistance. P. viticola has developed resistance to most of the fungicide classes used and constitutes one of the most important threats for grapevine production. The goals of this review are to describe fungicide resistance evolution in P. viticola populations and how to conduct proper monitoring activities. Different methods have been developed for phenotyping and genotyping P. viticola for fungicide resistance and the different phases of resistance evolution and life cycles of the pathogen are discussed, to provide a full monitoring toolkit to limit the spread of resistance. A detailed revision of the available tools will help in shaping and harmonizing the monitoring activities between countries and organizations.
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29
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Chen L, Lang K, Mei Y, Shi Z, He K, Li F, Xiao H, Ye G, Han Z. FastD: Fast detection of insecticide target-site mutations and overexpressed detoxification genes in insect populations from RNA-Seq data. Ecol Evol 2020; 10:14346-14358. [PMID: 33391720 PMCID: PMC7771117 DOI: 10.1002/ece3.7037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 08/26/2020] [Accepted: 09/21/2020] [Indexed: 11/24/2022] Open
Abstract
Target-site mutations and detoxification gene overexpression are two major mechanisms conferring insecticide resistance. Molecular assays applied to detect these resistance genetic markers are time-consuming and with high false-positive rates. RNA-Seq data contains information on the variations within expressed genomic regions and expression of detoxification genes. However, there is no corresponding method to detect resistance markers at present. Here, we collected 66 reported resistance mutations of four insecticide targets (AChE, VGSC, RyR, and nAChR) from 82 insect species. Next, we obtained 403 sequences of the four target genes and 12,665 sequences of three kinds of detoxification genes including P450s, GSTs, and CCEs. Then, we developed a Perl program, FastD, to detect target-site mutations and overexpressed detoxification genes from RNA-Seq data and constructed a web server for FastD (http://www.insect-genome.com/fastd). The estimation of FastD on simulated RNA-Seq data showed high sensitivity and specificity. We applied FastD to detect resistant markers in 15 populations of six insects, Plutella xylostella, Aphis gossypii, Anopheles arabiensis, Musca domestica, Leptinotarsa decemlineata and Apis mellifera. Results showed that 11 RyR mutations in P. xylostella, one nAChR mutation in A. gossypii, one VGSC mutation in A. arabiensis and five VGSC mutations in M. domestica were found to be with frequency difference >40% between resistant and susceptible populations including previously confirmed mutations G4946E in RyR, R81T in nAChR and L1014F in VGSC. And 49 detoxification genes were found to be overexpressed in resistant populations compared with susceptible populations including previously confirmed detoxification genes CYP6BG1, CYP6CY22, CYP6CY13, CYP6P3, CYP6M2, CYP6P4 and CYP4G16. The candidate target-site mutations and detoxification genes were worth further validation. Resistance estimates according to confirmed markers were consistent with population phenotypes, confirming the reliability of this program in predicting population resistance at omics-level.
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Affiliation(s)
- Longfei Chen
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
- Department of EntomologyNanjing Agricultural UniversityNanjingChina
| | - Kun Lang
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
- Department of EntomologyNanjing Agricultural UniversityNanjingChina
| | - Yang Mei
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Zhenmin Shi
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Kang He
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Fei Li
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Huamei Xiao
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
- Key Laboratory of Crop Growth and Development Regulation of Jiangxi ProvinceCollege of Life Sciences and Resource EnvironmentYichun UniversityYichunChina
| | - Gongyin Ye
- Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Zhaojun Han
- Department of EntomologyNanjing Agricultural UniversityNanjingChina
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30
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Van Leeuwen T, Dermauw W, Mavridis K, Vontas J. Significance and interpretation of molecular diagnostics for insecticide resistance management of agricultural pests. CURRENT OPINION IN INSECT SCIENCE 2020; 39:69-76. [PMID: 32361620 DOI: 10.1016/j.cois.2020.03.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/06/2020] [Accepted: 03/19/2020] [Indexed: 06/11/2023]
Abstract
Insecticide resistant pests become increasingly difficult to control in current day agriculture. Because of environmental and health concerns, the insecticide portfolio to combat agricultural pests is gradually decreasing. It is therefore crucial to make rational decisions on insecticide use to assure effective resistance management. However, resistance monitoring programs that inform on pest susceptibility and resistance are not yet common practice in agriculture. Molecular markers of resistance that are turned into convenient diagnostic tools are urgently needed and will only increase in importance. This review investigates which factors determine the strength, diagnostic value, and success of a diagnostic marker, and in which cases recent technical advances might provide new opportunities for decision making in an operational meaningful way.
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Affiliation(s)
- Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
| | - Wannes Dermauw
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Konstantinos Mavridis
- Molecuar Entomology Lab, Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology (FORTH), Nikolaou Plastira Street 100, 70013, Heraklion, Crete, Greece
| | - John Vontas
- Molecuar Entomology Lab, Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology (FORTH), Nikolaou Plastira Street 100, 70013, Heraklion, Crete, Greece; Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
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31
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Cassedy A, Mullins E, O'Kennedy R. Sowing seeds for the future: The need for on-site plant diagnostics. Biotechnol Adv 2020; 39:107358. [DOI: 10.1016/j.biotechadv.2019.02.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 01/28/2019] [Accepted: 02/21/2019] [Indexed: 01/09/2023]
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Chen L, Zhang T, Ge M, Liu Y, Xing Y, Liu L, Li F, Cheng L. The Nrf2-Keap1 pathway: A secret weapon against pesticide persecution in Drosophila Kc cells. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:47-57. [PMID: 32284136 DOI: 10.1016/j.pestbp.2019.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 12/10/2019] [Accepted: 12/26/2019] [Indexed: 06/11/2023]
Abstract
Nrf2-Keap1 pathway defends organisms against the detrimental effects of oxidative stress, and play pivotal roles in preventing xenobiotic-related toxicity. We designed experiments to explore and verify its role and function under deltamethrin (DM) stress. In experiments, DM was selected as the inducer, and Drosophila Kc cells were treated as the objects. The result showed the oxidative stress of cells proliferated in a very short time after DM treatment, reaching the maximum after one hour of treatment. The experimental data showed Nrf2 could be up-regulated and activated by DM which were manifested by the increase of Nrf2 mRNA, Nrf2 protein in the nucleus and the expression of detoxification enzyme genes. We further tested the activity of all groups, and found the survival rate of cells was basically proportional to the expression of Nrf2. Based on the above experimental results, Keap1 overexpression (K+), Nrf2 overexpression (N+) or interference (N-) cells were used to verified the relationship between Nrf2, cell survival and detoxification enzymes expression. We found the cell survival rate of N+ group was significantly higher than that of other groups and the expression of detoxification enzymes were increased compared to the control group. These results demonstrated that Nrf2 is related to cell detoxification and associated with the tolerance to DM. Our evidence suggested Nrf2 is a potential therapeutic target for oxidative stress and a potential molecular target gene of resistance control.
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Affiliation(s)
- Lu Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Tingting Zhang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Mengying Ge
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yahui Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yuping Xing
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Liu Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Fengliang Li
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550009, China
| | - Luogen Cheng
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
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Yang Q, Umina PA, Rašić G, Bell N, Fang J, Lord A, Hoffmann AA. Origin of resistance to pyrethroids in the redlegged earth mite (Halotydeus destructor) in Australia: repeated local evolution and migration. PEST MANAGEMENT SCIENCE 2020; 76:509-519. [PMID: 31259466 DOI: 10.1002/ps.5538] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/17/2019] [Accepted: 06/26/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Halotydeus destructor is a major pest of crops and pastures across southern parts of Australia. This invasive mite has been chemically controlled for over 50 years, but resistance to synthetic pyrethroids and organophosphates is developing. Understanding processes behind the emerging resistance is important for effective management efforts. We undertook a ddRAD pool-sequencing approach to analyse genome-wide single nucleotide polymorphism variation in H. destructor population samples at two scales: local resistance across a set of fields, and regional resistance across their Australian range, along with toxicology bioassays to screen for pyrethroid resistance. RESULTS Spatial patterns of genomic variation and resistance at a local scale indicated that genetic similarity among samples was more closely correlated with distance along roads and fence-lines than with straight-line geographic distance. This pattern was particularly strong in resistant samples, which were also more related than susceptible samples, suggesting local spread of resistance within an area after it emerged. By contrast, regional data suggest resistance has emerged repeatedly within parts of Australia. Our de novo annotation of the H. destructor draft genome sequence and Bayesian analysis identified several candidate loci strongly associated with population-level resistance to pyrethroids, located in genomic regions that code for transmembrane transport and signalling proteins that have previously been linked to insecticide resistance in other arthropods. CONCLUSION Our findings highlight multiple independent evolutionary events leading to resistance in H. destructor, and demonstrate the utility and cost-effectiveness of a cross-population, genome-wide association study to reveal processes underlying adaptive evolution in a non-model invasive species. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qiong Yang
- Pest and Environmental Adaptation Research Group, School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Paul A Umina
- Pest and Environmental Adaptation Research Group, School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
- Sustainable Agriculture, cesar, Parkville, VIC, Australia
| | - Gordana Rašić
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Nicholas Bell
- Pest and Environmental Adaptation Research Group, School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Jichao Fang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Alan Lord
- Department of Primary Industries and Regional Development, Government of Western Australia, South Perth, WA, Australia
| | - Ary A Hoffmann
- Pest and Environmental Adaptation Research Group, School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
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Délye C, Michel S, Pernin F, Gautier V, Gislard M, Poncet C, Le Corre V. Harnessing the power of next-generation sequencing technologies to the purpose of high-throughput pesticide resistance diagnosis. PEST MANAGEMENT SCIENCE 2020; 76:543-552. [PMID: 31270924 DOI: 10.1002/ps.5543] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Next Generation Sequencing (NGS) technologies offer tremendous possibilities for high-throughput pesticide resistance diagnosis via massive genotyping-by-sequencing. Herein, we used Illumina sequencing combined with a simple, non-commercial bioinformatics pipe-line to seek mutations involved in herbicide resistance in two weeds. RESULTS DNA was extracted from 96 pools of 50 plants for each species. Three amplicons encompassing 15 ALS (acetolactate-synthase) codons crucial for herbicide resistance were amplified from each DNA extract. Above 18 and 20 million quality 250-nucleotide sequence reads were obtained for groundsel (Senecio vulgaris, tetraploid) and ragweed (Ambrosia artemisiifolia, diploid), respectively. Herbicide resistance-endowing mutations were identified in 45 groundsel and in eight ragweed field populations. The mutations detected and their frequencies assessed by NGS were checked by individual plant genotyping or Sanger sequencing. NGS results were fully confirmed, except in three instances out of 12 where mutations present at a frequency of 1% were detected below the threshold set for reliable mutation detection. CONCLUSION Analyzing 9600 plants requested 192 DNA extractions followed by 1728 PCRs and two Illumina runs. Equivalent results obtained by individual analysis would have necessitated 9600 individual DNA extractions followed by 216 000 genotyping PCRs, or by 121 500 PCRs and 40 500 Sanger sequence runs. This clearly demonstrates the interest and power of NGS-based detection of pesticide resistance from pools of individuals for diagnosing resistance in massive numbers of individuals. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | | | | | - Véronique Gautier
- INRA, UMR1095 Génétique, Diversité et Écophysiologie des Céréales, Clermont-Ferrand, France
| | | | - Charles Poncet
- INRA, UMR1095 Génétique, Diversité et Écophysiologie des Céréales, Clermont-Ferrand, France
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Arias O, Cordeiro E, Corrêa AS, Domingues FA, Guidolin AS, Omoto C. Population genetic structure and demographic history of Spodoptera frugiperda (Lepidoptera: Noctuidae): implications for insect resistance management programs. PEST MANAGEMENT SCIENCE 2019; 75:2948-2957. [PMID: 30868715 DOI: 10.1002/ps.5407] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/23/2019] [Accepted: 03/10/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Spodoptera frugiperda is a destructive pest that often imposes difficult management due to its high polyphagy and rapid insecticide resistance evolution. Knowledge of species diversification, population structure, and host preference can aid efforts to manage pest populations. Here, we investigated the patterns of hybridization, genetic structure, and gene flow in S. frugiperda populations, discussing how we can apply this knowledge to insect resistance management programs in South America. RESULTS The corn-strain CS-h2 of S. frugiperda was the most frequent haplotype in all sampled populations. Spodoptera frugiperda populations are experiencing demographic expansion, and the ecoregions partially explain the genetic structure and not strains. We did not find a correlation between gene flow and susceptibility levels to flubendiamide and lufenuron insecticides, but populations with high LC50 sent a great number of migrants to all other locations, maintaining resistance alleles in the geographic range. CONCLUSION High levels of population admixture, including between corn- and rice-strains, were found in sampled populations. We showed that S. frugiperda immigrants will not necessarily cause an increase in LC50 upon arrival in a new location but will assure the constant presence of resistance alleles in the area. Increases in LC50 largely depend on the local pesticide management adopted in the areas. Our results indicate that pesticide resistance management must be adopted on a local or small regional scale. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Osmar Arias
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
| | - Erick Cordeiro
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
| | - Alberto S Corrêa
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
| | - Felipe A Domingues
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
| | - Aline S Guidolin
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP / ESALQ), Piracicaba, Brazil
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pH-responsive ultrasonic self-assembly spinosad-loaded nanomicelles and their antifungal activity to Fusarium oxysporum. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.05.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Wang Y, Zhang LT, Feng YX, Guo SS, Pang X, Zhang D, Geng ZF, Du SS. Insecticidal and repellent efficacy against stored-product insects of oxygenated monoterpenes and 2-dodecanone of the essential oil from Zanthoxylum planispinum var. dintanensis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24988-24997. [PMID: 31240663 DOI: 10.1007/s11356-019-05765-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/17/2019] [Indexed: 06/09/2023]
Abstract
Essential oils (EOs) extracted from leaves (EL) and fruit pericarp (EFP) of Zanthoxylum planispinum var. dintanensis were analyzed for their chemical composition by GC-MS technique and evaluated for their fumigant, contact toxicity and repellency against three stored-product insects, namely Tribolium castaneum, Lasioderma serricorne, and Liposcelis bostrychophila adults. Results of GC-MS analysis manifested that EL and EFP of Z. planispinum var. dintanensis were mainly composed of oxygenated monoterpenes. Major components included linalool, sylvestrene and terpinen-4-ol. The obvious variation observed between two oil samples was that EL contained 2-dodecanone (11.52%) in addition to the above mentioned components, while this constituent was not detected in EFP. Bioassays of insecticidal and repellent activities were performed for EL, EFP as well as some of their individual compounds (linalool, terpinen-4-ol and 2-dodecanone). Testing results indicated that EL, EFP, linalool, terpinen-4-ol and 2-dodecanone exhibited potent insecticidal and repellent activities against the three target insects selected. Among the three individual compounds, 2-dodecanone was significantly toxic to T. castaneum (LD50 = 5.21 μg/adult), L. serricorne (LD50 = 2.54 μg/adult) and L. bostrychophila (LD50 = 23.41 μg/cm2) in contact assays and had beneficial repellent effects on L. serricorne at 2 and 4 h post-exposure. The anti-insect efficacy of Z. planispinum var. dintanensis EO suggests it has potential to be used as botanical insecticide or repellent to control pest damage in warehouses and grain stores.
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Affiliation(s)
- Yang Wang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Li-Ting Zhang
- Liaoning Vocational College of Medicine, No. 2 Qiaosong Road, Shenyang, 110101, Liaoning, China
| | - Yi-Xi Feng
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Shan-Shan Guo
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Xue Pang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Di Zhang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Zhu-Feng Geng
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
- Analytical and Testing Center, Beijing Normal University, Beijing, 100875, China
| | - Shu-Shan Du
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
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Fontaine S, Remuson F, Caddoux L, Barrès B. Investigation of the sensitivity of Plasmopara viticola to amisulbrom and ametoctradin in French vineyards using bioassays and molecular tools. PEST MANAGEMENT SCIENCE 2019; 75:2115-2123. [PMID: 31077540 DOI: 10.1002/ps.5461] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Complex III inhibitors are key compounds in the control of Plasmopara viticola. They are prone to the development of resistance, as demonstrated by the emergence of resistance to quinone-outside inhibitors. By using a combination of bioassays and molecular methods, we monitored sensitivity to amisulbrom and ametoctradin in P. viticola populations in French vineyards from 2012 to 2017. RESULTS We found that the alternative oxidase (AOX)-related resistance mechanism was common in French P. viticola populations. Target-site resistance to ametoctradin was first detected in 2015 and is likely caused by a single point mutation in the cytochrome b gene, leading to the S34L substitution. The role of this substitution in resistance to ametoctradin was corroborated by another study using an experimental model. A molecular biology method has been developed to detect the mutant allele. To date, the frequency of this mutation is low in French P. viticola populations and it is often co-detected with the wild-type allele. CONCLUSION Populations of P. viticola displaying evidence of AOX-related resistance were detected for every surveyed year, and their occurrence in French vineyards seems to be increasing over time. This resistance mechanism is currently threatening the efficacy of complex III inhibitors in the field. The low frequency of the S34L allele conferring resistance to ametoctradin, and the instability of resistant phenotypes in some populations, suggest that a fitness cost may be associated with the mutation. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | | | | | - Benoit Barrès
- Université de Lyon, Anses, INRA, USC CASPER, Lyon, France
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Le Navenant A, Siegwart M, Maugin S, Capowiez Y, Rault M. Metabolic mechanisms and acetylcholinesterase sensitivity involved in tolerance to chlorpyrifos-ethyl in the earwig Forficula auricularia. CHEMOSPHERE 2019; 227:416-424. [PMID: 31003126 DOI: 10.1016/j.chemosphere.2019.04.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Apple orchards are highly treated crops, in which organophosphorus (OP) are among the most heavily sprayed insecticides. These pesticides are toxic to non-target arthropods and their repeated use increases the risk of resistance. We studied mechanisms involved in tolerance and resistance to OP insecticides in the earwig Forficula auricularia, an effective generalist predator in pomefruit orchards. Adult earwigs were sampled in three apple orchards managed under contrasting strategies: conventional, Integrated Pest Management, and organic. The threshold activities of enzyme families involved in pesticides tolerance: Glutathione-S-transferases (GSTs) and Carboxylesterases (CbEs) were measured in earwig extracts. Acetylcholinesterase (AChE) was monitored as a toxicological endpoint. Variations in these activities were assessed prior to and after exposure to chlorpyrifos-ethyl at the normal application rate. We observed that the mortality of earwigs exposed to chlorpyrifos-ethyl depended on the management strategy of orchards. Significantly lower mortality was seen in individuals sampled from conventional orchard. The basal activities of CbEs and GSTs of collected organisms were higher in conventional orchard. After in vivo exposure, AChE activity appeared to be inhibited in surviving males with no difference between orchards. However an in vitro inhibition trial with chlorpyrifos-oxon showed that AChE from earwigs collected in organic and IPM orchards were more sensitive than from conventional ones. These observations support the hypothesis of a molecular target modification in AChE and highlight the possible role of CbEs in effective protection of AChE. Our findings suggest that the earwigs with a high historic level of insecticide exposure could acquire resistance to chlorpyrifos-ethyl.
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Affiliation(s)
- Adrien Le Navenant
- Avignon University, Aix Marseille Univ, CNRS, IRD, IMBE, Pôle Agrosciences, 301 rue Baruch de Spinoza, BP 21239, 84916, Avignon, France; INRA, Unité PSH, Equipe Ecologie de la Production Intégrée, Site Agroparc, 84914, Avignon Cedex 9, France.
| | - Myriam Siegwart
- INRA, Unité PSH, Equipe Ecologie de la Production Intégrée, Site Agroparc, 84914, Avignon Cedex 9, France
| | - Sandrine Maugin
- INRA, Unité PSH, Equipe Ecologie de la Production Intégrée, Site Agroparc, 84914, Avignon Cedex 9, France
| | - Yvan Capowiez
- INRA, UMR 1114 EMMAH Domaine Saint Paul 84914, Avignon Cedex 09, France
| | - Magali Rault
- Avignon University, Aix Marseille Univ, CNRS, IRD, IMBE, Pôle Agrosciences, 301 rue Baruch de Spinoza, BP 21239, 84916, Avignon, France
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Garnault M, Duplaix C, Leroux P, Couleaud G, Carpentier F, David O, Walker AS. Spatiotemporal dynamics of fungicide resistance in the wheat pathogen Zymoseptoria tritici in France. PEST MANAGEMENT SCIENCE 2019; 75:1794-1807. [PMID: 30680908 DOI: 10.1002/ps.5360] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/16/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Management of pesticide resistance is a major issue in modern agricultural systems, particularly in the context of the broader challenge of reducing pesticide use. However, such management must be adapted to resistance dynamics, which remains challenging to predict due to its dependence on many biological traits of pests, interactions with the environment and pesticide use. We retrospectively studied the evolution of reported resistances to four modes of action (benzimidazoles, quinone outside inhibitors, sterol demethylation inhibitors and succinate dehydrogenase inhibitors), in French populations of the wheat pathogen Zymoseptoria tritici. RESULTS We used statistical models to analyse the Performance trial network data set (2004-2017; ∼ 70 locations in France yearly). They highlighted contrasting behaviours between phenotypes, for example: (i) stable spatial distributions and colonization front structures over time, and (ii) different frequency growth rates at the national scale and between regions. CONCLUSION We provide a quantitative description of the spatiotemporal patterns of resistance evolution for fungicides with several modes of action. Moreover, we highlight some unexpected resistance dynamics in France, with major differences between the north and south. This complex pattern of resistance evolution in French populations is consistent with previous descriptions of dynamics at the European scale. These results should make it easier to anticipate evolution locally and to improve the management of resistance. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Maxime Garnault
- UMR1290 BIOGER, INRA, AgroParisTech, Université Paris-Saclary, Thiverval-Grignon, France
- MaIAGE, INRA, Université Paris-Saclay, Jouy-en-Josas, France
| | - Clémentine Duplaix
- UMR1290 BIOGER, INRA, AgroParisTech, Université Paris-Saclary, Thiverval-Grignon, France
| | - Pierre Leroux
- UMR1290 BIOGER, INRA, AgroParisTech, Université Paris-Saclary, Thiverval-Grignon, France
| | | | - Florence Carpentier
- UMR1290 BIOGER, INRA, AgroParisTech, Université Paris-Saclary, Thiverval-Grignon, France
- MaIAGE, INRA, Université Paris-Saclay, Jouy-en-Josas, France
| | - Olivier David
- MaIAGE, INRA, Université Paris-Saclay, Jouy-en-Josas, France
| | - Anne-Sophie Walker
- UMR1290 BIOGER, INRA, AgroParisTech, Université Paris-Saclary, Thiverval-Grignon, France
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Chen MX, Wijethunge BDIK, Zhou SM, Yang JF, Dai L, Wang SS, Chen C, Fu LJ, Zhang J, Hao GF, Yang GF. Chemical Modulation of Alternative Splicing for Molecular-Target Identification by Potential Genetic Control in Agrochemical Research. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5072-5084. [PMID: 30986354 DOI: 10.1021/acs.jafc.9b02086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Alternative splicing (AS), the process of removing introns from pre-mRNA and the rearrangement of exons to produce several types of mature transcripts, is a remarkable step preceding protein synthesis. In particular, it has now been conclusively shown that up to ∼95% of genes are alternatively spliced to generate a complex and diverse proteome in eukaryotic organisms. Consequently, AS is one of the determinants of the functional repertoire of cells. Many studies have revealed that AS in plants can be regulated by cell type, developmental stage, environmental stress, and the circadian clock. Moreover, increasing amounts of evidence reveal that chemical compounds can affect various steps during splicing to induce major effects on plant physiology. Hence, the chemical modulation of AS can serve as a good strategy for molecular-target identification in attempts to potentially control plant genetics. However, the kind of mechanisms involved in the chemical modulation of AS that can be used in agrochemical research remain largely unknown. This review introduces recent studies describing the specific roles AS plays in plant adaptation to environmental stressors and in the regulation of development. We also discuss recent advances in small molecules that induce alterations of AS and the possibility of using this strategy in agrochemical-target identification, giving a new direction for potential genetic control in agrochemical research.
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Affiliation(s)
- Mo-Xian Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Research and Development Center for Fine Chemicals , Guizhou University , Guiyang 550025 , PR China
- Division of Gastroenterology , Shenzhen Children's Hospital , Shenzhen 518038 , PR China
- Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen 518055 , PR China
- School of Life Sciences and Shenzhen Research Institute , The Chinese University of Hong Kong , Shenzhen 518063 , PR China
| | - Boyagane D I K Wijethunge
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , PR China
| | - Shao-Ming Zhou
- Division of Gastroenterology , Shenzhen Children's Hospital , Shenzhen 518038 , PR China
| | - Jing-Fang Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , PR China
| | - Lei Dai
- Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen 518055 , PR China
| | - Shan-Shan Wang
- School of Life Sciences and Shenzhen Research Institute , The Chinese University of Hong Kong , Shenzhen 518063 , PR China
| | - Chen Chen
- Department of Infectious Disease, Nanjing Second Hospital , Nanjing University of Chinese Medicine , Nanjing 210003 , PR China
| | - Li-Jun Fu
- Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants , Putian University , Putian , Fujian 351100 , PR China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University and State Key Laboratory of Agrobiotechnology , The Chinese University of Hong Kong , Shatin , Hong Kong , PR China
| | - Ge-Fei Hao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Research and Development Center for Fine Chemicals , Guizhou University , Guiyang 550025 , PR China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , PR China
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Paril JF, Fournier-Level AJ. instaGraminoid, a Novel Colorimetric Method to Assess Herbicide Resistance, Identifies Patterns of Cross-Resistance in Annual Ryegrass. PLANT PHENOMICS (WASHINGTON, D.C.) 2019; 2019:7937156. [PMID: 33313537 PMCID: PMC7718631 DOI: 10.34133/2019/7937156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 04/07/2019] [Indexed: 06/12/2023]
Abstract
Herbicide resistance in agricultural weeds is a global problem with an increasing understanding that it is caused by multiple genes leading to quantitative resistance. These quantitative patterns of resistance are not easy to decipher with mortality assays alone, and there is a need for straightforward and unbiased protocols to accurately assess quantitative herbicide resistance. instaGraminoid-a computer vision and statistical analysis package-was developed as an automated and scalable method for quantifying herbicide resistance. The package was tested in rigid ryegrass (Lolium rigidum), the most noxious and highly resistant weed in Australia and the Mediterranean region. This method provides quantitative measures of the degree of chlorosis and necrosis of individual plants which was shown to accurately reflect herbicide resistance. We were able to reliably characterise resistance to four herbicides with different sites of action (glyphosate, sulfometuron, terbuthylazine, and trifluralin) in two L. rigidum populations from Southeast Australia. Cross-validation of the method across populations and herbicide treatments showed high repeatability and transferability. Significant positive correlations in resistance of individual plants were observed across herbicides, which suggest either the accumulation of herbicide-specific resistance alleles in single genotypes (multiple stacked resistance) or the presence of general broad-effects resistance alleles (cross-resistance). We used these quantitative estimates of cross-resistance to simulate how resistance development under an herbicide rotation strategy is likely to be higher than expected.
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Affiliation(s)
- Jefferson F. Paril
- School of Biosciences, University of Melbourne, Parkville, VIC, Australia
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Brito LG, Barbieri FS, Rocha RB, Santos APL, Silva RR, Ribeiro ES, Guerrero F, Foil L, Oliveira MCS. Pyrethroid and organophosphate pesticide resistance in field populations of horn fly in Brazil. MEDICAL AND VETERINARY ENTOMOLOGY 2019; 33:121-130. [PMID: 30125976 DOI: 10.1111/mve.12330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 05/29/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Pesticides are used worldwide to control arthropod parasites in cattle herds. The indiscriminate and/or inappropriate use of pesticides without veterinary guidance is a reality in several countries of South America. Improper pesticide use increases the chances of contamination of food and the environment with chemical pesticides and their metabolites. Reduction of these contamination events is an increasing challenge for those involved in livestock production. The horn fly, Haematobia irritans (Linnaeus) (Diptera: Muscidae), is one of the most economically important parasites affecting cattle herds around the world. As such, horn fly control efforts are often required to promote the best productive performance of herds. Pesticide susceptibility bioassays revealed that pyrethroid resistance was widespread and reached high levels in horn fly populations in the Brazilian state of Rondônia. The knockdown resistance (kdr) sodium channel gene mutation was detected in all horn fly populations studied (n = 48), and the super kdr sodium channel gene mutation was found in all homozygous resistant kdr individuals (n = 204). Organophosphate resistance was not identified in any of the fly populations evaluated.
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Affiliation(s)
- L G Brito
- Embrapa Amazônia Oriental, Belém, Brazil
| | | | - R B Rocha
- Embrapa Rondônia, Porto Velho, Brazil
| | - A P L Santos
- Universidade Federal de Rondônia, Porto Velho, Brazil
| | - R R Silva
- Embrapa Rondônia, Porto Velho, Brazil
| | | | - F Guerrero
- USDA-ARS Knipling-Bushland Livestock Insects Research Laboratory, Kerrville, TX, U.S.A
| | - L Foil
- Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A
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Jia CY, Wang F, Hao GF, Yang GF. InsectiPAD: A Web Tool Dedicated to Exploring Physicochemical Properties and Evaluating Insecticide-Likeness of Small Molecules. J Chem Inf Model 2019; 59:630-635. [DOI: 10.1021/acs.jcim.8b00843] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chen-Yang Jia
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
- International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, China
| | - Fan Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
- International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, China
| | - Ge-Fei Hao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
- International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
- International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P.R. China
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Neuwirthová N, Trojan M, Svobodová M, Vašíčková J, Šimek Z, Hofman J, Bielská L. Pesticide residues remaining in soils from previous growing season(s) - Can they accumulate in non-target organisms and contaminate the food web? THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:1056-1062. [PMID: 30235591 DOI: 10.1016/j.scitotenv.2018.07.357] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/25/2018] [Accepted: 07/25/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Natália Neuwirthová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Marek Trojan
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Markéta Svobodová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Jana Vašíčková
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Zdeněk Šimek
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Jakub Hofman
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic
| | - Lucie Bielská
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno CZ-62500, Czech Republic.
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Hawkins NJ, Fraaije BA. Fitness Penalties in the Evolution of Fungicide Resistance. ANNUAL REVIEW OF PHYTOPATHOLOGY 2018; 56:339-360. [PMID: 29958074 DOI: 10.1146/annurev-phyto-080417-050012] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The evolution of resistance poses an ongoing threat to crop protection. Fungicide resistance provides a selective advantage under fungicide selection, but resistance-conferring mutations may also result in fitness penalties, resulting in an evolutionary trade-off. These penalties may result from the functional constraints of an evolving target site or from the resource allocation costs of overexpression or active transport. The extent to which such fitness penalties are present has important implications for resistance management strategies, determining whether resistance persists or declines between treatments, and for resistance risk assessments for new modes of action. Experimental results have proven variable, depending on factors such as temperature, nutrient status, osmotic or oxidative stress, and pathogen life-cycle stage. Functional genetics tools allow pathogen genetic background to be controlled, but this in turn raises the question of epistatic interactions. Combining fitness penalties under various conditions into a field-realistic scenario poses an important future challenge.
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Affiliation(s)
- N J Hawkins
- Biointeractions and Crop Protection Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom;
| | - B A Fraaije
- Biointeractions and Crop Protection Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom;
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Wang K, Huang Y, Li X, Chen M. Functional Analysis of a Carboxylesterase Gene Associated With Isoprocarb and Cyhalothrin Resistance in Rhopalosiphum padi (L.). Front Physiol 2018; 9:992. [PMID: 30090072 PMCID: PMC6068260 DOI: 10.3389/fphys.2018.00992] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 07/06/2018] [Indexed: 12/03/2022] Open
Abstract
Carboxylesterase (CarE) is an important class of detoxification enzymes involved in insecticide resistance. However, the molecular mechanism of CarE-mediated insecticide resistance in Rhopalosiphum padi, a problematic agricultural pest, remains largely unknown. In the present study, an isoprocarb-resistant (IS-R) strain and a cyhalothrin-resistant (CY-R) strain were successively selected from a susceptible (SS) strain of R. padi. The enzyme activity indicated that enhanced carboxylesterase activity contributes to isoprocarb and cyhalothrin resistance. The expression levels of putative CarE genes were examined and compared among IS-R, CY-R, and SS strains, and only the R. padi carboxylesterase gene (RpCarE) was significantly over expressed in both the IS-R and CY-R strains compared to the SS strain. The coding region of the RpCarE gene was cloned and expressed in Escherichia coli. The purified RpCarE protein was able to catalyze the model substrate, α-naphtyl acetate (Kcat = 5.50 s-1; Km = 42.98 μM). HPLC assay showed that the recombinant protein had hydrolase activity against isoprocarb and cyhalothrin. The modeling and docking analyses consistently indicated these two insecticide molecules fit snugly into the catalytic pocket of RpCarE. Taken together, these findings suggest that RpCarE plays an important role in metabolic resistance to carbamates and pyrethroids in R. padi.
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Affiliation(s)
- Kang Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Yanna Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Xinyu Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Maohua Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
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Qu F, Lin L, He Y, Nie P, Cai C, Dong T, Pan Y, Tang Y, Luo S. Spectral Characterization and Molecular Dynamics Simulation of Pesticides Based on Terahertz Time-Domain Spectra Analyses and Density Functional Theory (DFT) Calculations. Molecules 2018; 23:molecules23071607. [PMID: 30004436 PMCID: PMC6100053 DOI: 10.3390/molecules23071607] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/27/2018] [Accepted: 06/28/2018] [Indexed: 12/24/2022] Open
Abstract
This work provides the experimental and theoretical fundamentals for detecting the molecular fingerprints of six kinds of pesticides by using terahertz (THz) time-domain spectroscopy (THz-TDS). The spectra of absorption coefficient and refractive index of the pesticides, chlorpyrifos, fipronil, carbofuran, dimethoate, methomyl, and thidiazuron are obtained in frequencies of 0.1–3.5 THz. To accurately describe the THz spectral characteristics of pesticides, the wavelet threshold de-noising (WTD) method with db 5 wavelet fucntion, 5-layer decomposition, and soft-threshold de-noising was used to eliminate the spectral noise. The spectral baseline correction (SBC) method based on asymmetric least squares smoothing was used to remove the baseline drift. Spectral results show that chlorpyrifo had three characteristic absorption peaks at 1.47, 1.93, and 2.73 THz. Fipronil showed three peaks at 0.76, 1.23, and 2.31 THz. Carbofuran showed two peaks at 2.72 and 3.06 THz. Dimethoate showed three peaks at 1.05, 1.89, and 2.92 THz. Methomyl showed five peaks at 1.01, 1.65, 1.91, 2.72, and 3.20 THz. Thidiazuron showed four peaks at 0.99, 1.57, 2.17, and 2.66 THz. The density functional theory (DFT) of B3LYP/6-31G+(d,p) was applied to simulate the molecular dynamics for peak analyzing of the pesticides based on isolated molecules. The theoretical spectra are in good agreement with the experimental spectra processed by WTD + SBC, which implies the validity of WTD + SBC spectral processing methods and the accuracy of DFT spectral peak analysis. These results support that the combination of THz-TDS and DFT is an effective tool for pesticide fingerprint analysis and the molecular dynamics simulations.
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Affiliation(s)
- Fangfang Qu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
| | - Lei Lin
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
| | - Yong He
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
| | - Pengcheng Nie
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
- State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.
| | - Chengyong Cai
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
| | - Tao Dong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture, Hangzhou 310058, China.
| | - Yi Pan
- Laser Information Technology Research Center, Harbin Institute of Technology Shenzhen Graduate School, Guangdong 518055, China.
| | - Yu Tang
- College of Automation, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Shaoming Luo
- College of Automation, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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Fisher MC, Hawkins NJ, Sanglard D, Gurr SJ. Worldwide emergence of resistance to antifungal drugs challenges human health and food security. Science 2018; 360:739-742. [DOI: 10.1126/science.aap7999] [Citation(s) in RCA: 624] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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O'Flynn BG, Hawley AJ, Merkler DJ. Insect Arylalkylamine N-Acetyltransferases as Potential Targets for Novel Insecticide Design. ACTA ACUST UNITED AC 2018; 4. [PMID: 29552676 DOI: 10.21767/2471-8084.100053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Crop protection against destructive pests has been at the forefront of recent agricultural advancements. Rapid adaptive evolution has led to insects becoming immune to the chemicals employed to quell their damage. Insecticide resistance is a serious problem that negatively impacts food production, food storage, human health, and the environment. To make matters more complicated are the strict regulations in place on insecticide development, driven by rising public concern relating to the harmful effects these chemicals have on the environment and on society. A key component to solving the problem of insecticide resistance, while keeping public welfare in mind, is the identification of novel insect-specific protein targets. One unexplored target for the development of new targeted insecticides are the insect arylalkylamine N-acetyltransferases (iAANATs). This group of enzymes, shown to be intrinsic in the development of the insect cuticle, is an untapped well of potential for target-specific inhibition, while offering enough variety to ensure protection for non-target enzymes. In this review, we highlight kinetic, genetic and bioinformatic data showing that the iAANATs are intriguing insecticide targets that should be specific only for particular insect pests. Such a pest-specific insecticide would minimize environmental harm by eliminating such non-discriminate attacks which have made insecticides such a highly regulated industry, and would have negligible toxicity to humans and other mammals.
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Affiliation(s)
| | - Aidan J Hawley
- Department of Chemistry, University of South Florida, USA
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