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Srivastava A, Jain G, Chandra S, Kalia V, Upadhyay SK, Dubey RS, Verma PC. Failure of methanol detoxification in pests confers broad spectrum insect resistance in PME overexpressing transgenic cotton. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 333:111737. [PMID: 37217034 DOI: 10.1016/j.plantsci.2023.111737] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 05/02/2023] [Accepted: 05/19/2023] [Indexed: 05/24/2023]
Abstract
Methanol is noxious to insect pests, but most plants do not make enough of it to shield themselves from encroaching insects. Methanol emission is known to increase in the instance of herbivory. In the current study, we showed that Aspergillus niger pectin methylesterase over-expression increases methanol emission and confers resistance to polyphagous insect pests on transgenic cotton plants by impeding the possible methanol detoxification pathways. Transgenic plants emitted ~11 fold higher methanol displaying insect mortality of 96% and 93% in Helicoverpa armigera and Spodoptera litura, respectively. The larvae were unable to survive and finish their life cycle and the surviving larvae exhibited severe growth retardation. Insects try to detoxify methanol via catalase, carboxylesterase and cytochrome P450 monooxygenase enzymes, amongst which cytochrome P450 plays a major role in oxidizing methanol to formaldehyde and formaldehyde to formic acid, which is broken down into carbon dioxide and water. In our study, catalase and esterase enzymes were found to be upregulated, but cytochrome P450 monooxygenase levels were not much affected. Leaf disc assays and In-planta bioassays also showed 50-60% population reduction in the sap sucking pests, such as Bemisia tabaci and Phenacoccus solenopsis. These findings imply that elevated methanol emissions confer resistance in plants against chewing and sap-sucking pests by tampering the methanol detoxification pathways. Such mechanism will be useful in imparting expansive resistance against pests in plants.
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Affiliation(s)
- Alka Srivastava
- Plant molecular biology and biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, UP, India; Department of Biochemistry, Banaras Hindu University, Varanasi, UP, India
| | - Gourav Jain
- Plant molecular biology and biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, UP, India; Department of Biotechnology, Bhimtal Campus, Kumaun University, Nainital, Uttarakhand, India
| | - Sateesh Chandra
- Plant molecular biology and biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Vinay Kalia
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | | | - Rama Shanker Dubey
- Department of Biochemistry, Banaras Hindu University, Varanasi, UP, India
| | - Praveen Chandra Verma
- Plant molecular biology and biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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Nadalutti CA, Prasad R, Wilson SH. Perspectives on formaldehyde dysregulation: Mitochondrial DNA damage and repair in mammalian cells. DNA Repair (Amst) 2021; 105:103134. [PMID: 34116475 DOI: 10.1016/j.dnarep.2021.103134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/21/2021] [Accepted: 05/09/2021] [Indexed: 12/15/2022]
Abstract
Maintaining genome stability involves coordination between different subcellular compartments providing cells with DNA repair systems that safeguard against environmental and endogenous stresses. Organisms produce the chemically reactive molecule formaldehyde as a component of one-carbon metabolism, and cells maintain systems to regulate endogenous levels of formaldehyde under physiological conditions, preventing genotoxicity, among other adverse effects. Dysregulation of formaldehyde is associated with several diseases, including cancer and neurodegenerative disorders. In the present review, we discuss the complex topic of endogenous formaldehyde metabolism and summarize advances in research on fo dysregulation, along with future research perspectives.
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Affiliation(s)
- Cristina A Nadalutti
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
| | - Rajendra Prasad
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
| | - Samuel H Wilson
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA.
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Campbell JB, Dosch A, Hunt CM, Dotson EM, Benedict MQ, Rajamohan A, Rinehart JP. Physiological responses to cryoprotectant treatment in an early larval stage of the malaria mosquito, Anopheles gambiae. Cryobiology 2020; 99:114-121. [PMID: 33279509 DOI: 10.1016/j.cryobiol.2020.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/27/2020] [Accepted: 12/01/2020] [Indexed: 10/22/2022]
Abstract
The development of cryopreservation protocols for Anopheles gambiae could significantly improve research and control efforts. Cryopreservation of any An. gambiae life stage has yet to be successful. The unique properties of embryos have proven to be resistant to any practical cryoprotectant loading. Therefore, we have chosen to investigate early non-feeding first instar larvae as a potential life stage for cryopreservation. In order to determine an appropriate cryoprotective compound, larvae were treated with progressively better glass-forming cryoprotective mixtures. Toxicity evaluation in combination with calorimetry-based water content and supercooling point depression assessments were used to determine the cryoprotectants that could be used for cryostorage of viable larvae. Approximately 35-75% of the larvae were viable after reasonably high osmotic and biochemical challenge. This study provides ample evidence for an active osmoregulatory response in the Anopheles larvae to counter the permeation of cryoprotectants from the surrounding medium. The data show a strong correlation between the larval mortality and water content, indicating an osmoregulatory crisis in the larva due to certain cryoprotectants such as the higher concentrations of ethane diol (ED). The observations also indicate that the ability of the larvae to regulate permeation and water balance ceases at or within 20 min of cryoprotectant exposure, but this is strongly influenced by the treatment temperature. Among the compound cryoprotectants tested, 25% ED + 10% dimethyl sulfoxide (DMSO) and 40% ED + 0.5 M trehalose seem to present a compromise between viability, larval water content, supercooling point depression, and glass forming abilities.
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Affiliation(s)
- Jacob B Campbell
- Insect Genetics and Biochemistry Unit, Biosciences Research Lab, USDA-ARS, Fargo, ND, USA.
| | - Andrew Dosch
- Insect Genetics and Biochemistry Unit, Biosciences Research Lab, USDA-ARS, Fargo, ND, USA
| | - Catherine M Hunt
- Center for Disease Control and Prevention, Division of Parasitic Diseases and Malaria, Entomology Branch, Atlanta, GA, USA
| | - Ellen M Dotson
- Center for Disease Control and Prevention, Division of Parasitic Diseases and Malaria, Entomology Branch, Atlanta, GA, USA
| | - Mark Q Benedict
- Center for Disease Control and Prevention, Division of Parasitic Diseases and Malaria, Entomology Branch, Atlanta, GA, USA
| | - Arun Rajamohan
- Insect Genetics and Biochemistry Unit, Biosciences Research Lab, USDA-ARS, Fargo, ND, USA
| | - Joseph P Rinehart
- Insect Genetics and Biochemistry Unit, Biosciences Research Lab, USDA-ARS, Fargo, ND, USA
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Jia ZQ, Liu D, Peng YC, Han ZJ, Zhao CQ, Tang T. Identification of transcriptome and fluralaner responsive genes in the common cutworm Spodoptera litura Fabricius, based on RNA-seq. BMC Genomics 2020; 21:120. [PMID: 32013879 PMCID: PMC6998375 DOI: 10.1186/s12864-020-6533-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
Background Fluralaner is a novel isoxazoline insecticide with a unique action site on the γ-aminobutyric acid receptor (GABAR), shows excellent activity on agricultural pests including the common cutworm Spodoptera litura, and significantly influences the development and fecundity of S. litura at either lethal or sublethal doses. Herein, Illumina HiSeq Xten (IHX) platform was used to explore the transcriptome of S. litura and to identify genes responding to fluralaner exposure. Results A total of 16,572 genes, including 451 newly identified genes, were observed in the S. litura transcriptome and annotated according to the COG, GO, KEGG and NR databases. These genes included 156 detoxification enzyme genes [107 cytochrome P450 enzymes (P450s), 30 glutathione S-transferases (GSTs) and 19 carboxylesterases (CarEs)] and 24 insecticide-targeted genes [5 ionotropic GABARs, 1 glutamate-gated chloride channel (GluCl), 2 voltage-gated sodium channels (VGSCs), 13 nicotinic acetylcholine receptors (nAChRs), 2 acetylcholinesterases (AChEs) and 1 ryanodine receptor (RyR)]. There were 3275 and 2491 differentially expressed genes (DEGs) in S. litura treated with LC30 or LC50 concentrations of fluralaner, respectively. Among the DEGs, 20 related to detoxification [16 P450s, 1 GST and 3 CarEs] and 5 were growth-related genes (1 chitin and 4 juvenile hormone synthesis genes). For 26 randomly selected DEGs, real-time quantitative PCR (RT-qPCR) results showed that the relative expression levels of genes encoding several P450s, GSTs, heat shock protein (HSP) 68, vacuolar protein sorting-associated protein 13 (VPSAP13), sodium-coupled monocarboxylate transporter 1 (SCMT1), pupal cuticle protein (PCP), protein takeout (PT) and low density lipoprotein receptor adapter protein 1-B (LDLRAP1-B) were significantly up-regulated. Conversely, genes encoding esterase, sulfotransferase 1C4, proton-coupled folate transporter, chitinase 10, gelsolin-related protein of 125 kDa (GRP), fibroin heavy chain (FHC), fatty acid synthase and some P450s were significantly down-regulated in response to fluralaner. Conclusions The transcriptome in this study provides more effective resources for the further study of S. litura whilst the DEGs identified sheds further light on the molecular response to fluralaner.
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Affiliation(s)
- Zhong-Qiang Jia
- Key Laboratory of Integrated Pest Management in Crops in Eastern China (Ministry of Agriculture of China), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Di Liu
- Key Laboratory of Integrated Pest Management in Crops in Eastern China (Ministry of Agriculture of China), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Ying-Chuan Peng
- Key Laboratory of Integrated Pest Management in Crops in Eastern China (Ministry of Agriculture of China), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.,Present address: Institute of Entomology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Zhao-Jun Han
- Key Laboratory of Integrated Pest Management in Crops in Eastern China (Ministry of Agriculture of China), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Chun-Qing Zhao
- Key Laboratory of Integrated Pest Management in Crops in Eastern China (Ministry of Agriculture of China), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
| | - Tao Tang
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, 410125, People's Republic of China.
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Arain MS, Shakeel M, Elzaki MEA, Farooq M, Hafeez M, Shahid MR, Shah SAH, Khan FZA, Shakeel Q, Salim AMA, Li GQ. Association of detoxification enzymes with butene-fipronil in larvae and adults of Drosophila melanogaster. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10006-10013. [PMID: 29380196 DOI: 10.1007/s11356-018-1202-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
Insecticide resistance is a major challenge in successful insect pest control as the insects have the ability to develop resistance to various widely used insecticides. Butene-fipronil is a novel compound with high toxicity to insects and less toxicity to the non-target organisms. In the present study, the effect of butene-fipronil alone and in combination with three enzyme inhibitors, piperonyl butoxide (PBO), diethyl maleate (DEM), and triphenyl phosphate (TPP), was carried out on larvae and adults of Drosophilia melanogaster. Our results indicated that the co-toxicity indices of butene-fipronil + PBO, butene-fipronil + TPP, and butene-fipronil + DEM mixtures were 437.3, 335.0, and 210.3, respectively, in the second-instar larvae, while 186.6, 256.2, and 238.5, respectively, in the adults, indicating synergistic effects. Interestingly, butene-fipronil increased the expression of CYP28A5 in the larvae; CYP9F2, CYP304A1, CYP28A5, and CYP318A1 in the female adults; and CYP303A1 and CYP28A5 in the male adults. Furthermore, high-level expression of Est-7 was observed in the female adults compared to larvae and male adults. Our results suggest that there is no difference in butene-fipronil metabolism in larvae and male and female adults of D. melanogaster.
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Affiliation(s)
- Muhammad Shahid Arain
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Key Laboratory of Integrated Pest Management in Agriculture, Guangdong Institute of Applied Biological Resources, 105 Xingang Road West, Guangzhou, 510260, China.
| | - Muhammad Shakeel
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Mohammed Esmail Abdalla Elzaki
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Key Laboratory of Integrated Pest Management in Agriculture, Guangdong Institute of Applied Biological Resources, 105 Xingang Road West, Guangzhou, 510260, China
| | - Muhammad Farooq
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Muhammad Hafeez
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | | | | | - Fawad Zafar Ahmad Khan
- Department of Entomology, Muhammad Nawaz Sharif University of Agriculture, Multan, 60000, Pakistan
| | - Qaiser Shakeel
- College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Guo-Qing Li
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
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Martínez-Guitarte JL. Transcriptional activity of detoxification genes is altered by ultraviolet filters in Chironomus riparius. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:64-71. [PMID: 29154136 DOI: 10.1016/j.ecoenv.2017.11.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 11/01/2017] [Accepted: 11/09/2017] [Indexed: 06/07/2023]
Abstract
Ultraviolet (UV) filters are compounds used to prevent the damage produced by UV radiation in personal care products, plastics, etc. They have been associated with endocrine disruption, showing anti-estrogen activity in vertebrates and altering the ecdysone pathway in invertebrates. Although they have attracted the attention of multiple research teams there is a lack of data about how animals activate detoxification systems, especially in invertebrates. Here, analysis of the effects of two UV filters, benzophenone-3 (BP3) and 4-methylbenzylidene camphor (4MBC), on the transcriptional activity of nine genes covering the three steps of the detoxification process has been performed. Four cytochrome P450 genes belonging to different members of this family, five GST genes, and the multidrug resistance protein 1 (MRP1) gene were studied by RT-PCR to analyze their transcriptional activity in fourth instar larvae exposed to the UV filters for 8 and 24h. The obtained results show a differential response with downregulation of the different Cyp450s tested by 4MBC while BP3 seems not to modify their expression. On the other hand, some of the GST genes were affected by one or other of the filters, showing a less homogenous response. Finally, MRP1 was activated by both filters but at different times. These results demonstrate for first time that UV filters alter the expression of genes involved in the different steps of the detoxification process and that they can be processed by phase I enzymes other than Cyp450s. They also suggest that UV filters affect biotransformation processes, compromising the ability of the individual to respond to chemical stress, so further research is needed to know the extent of the damage that they can produce in the resistance of the cell to chemicals.
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Affiliation(s)
- José-Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040 Madrid, Spain
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7
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Cui L, Rui C, Yang D, Wang Z, Yuan H. De novo transcriptome and expression profile analyses of the Asian corn borer (Ostrinia furnacalis) reveals relevant flubendiamide response genes. BMC Genomics 2017; 18:20. [PMID: 28056803 PMCID: PMC5217215 DOI: 10.1186/s12864-016-3431-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 12/19/2016] [Indexed: 12/12/2022] Open
Abstract
Background The Asian corn borer (ACB), Ostrinia furnacalis (Guenée), has become the most damaging insect pest of corn in Asia. However, the lack of genome or transcriptome information heavily hinders our further understanding of ACB in every aspect at a molecular level and on a genome-wide scale. Here, we used the Ion Torrent Personal Genome Machine (PGM) Sequencer to explore the ACB transcriptome and to identify relevant genes in response to flubendiamide, showing high selective activity against ACB. Results We obtained 35,430 unigenes, with an average length of 716 bp, representing a dramatic expansion of existing cDNA sequences available for ACB. These sequences were annotated with Non-redundant Protein (Nr), Gene Ontology (GO), Clusters of Orthologous Groups (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) to better understand their functions. A total of 31 cytochrome P450 monooxygenases (P450s), 27 carboxyl/cholinesterases (CCEs) and 19 glutathione S-transferases (GSTs) were manually curated to construct phylogenetic trees, and 25 unigenes encoding target proteins (acetylcholinesterase, nicotinic acetylcholine receptor, gamma-aminobutyric acid receptor, glutamate-gated chloride channel, voltage-gated sodium channel and ryanodine receptor) were identified. In addition, we compared and validated the differentially expressed unigenes upon flubendiamide treatment, revealing that the genes for detoxification enzymes (P450s and esterase), calcium signaling pathways and muscle control pathways (twitchin and tropomyosin), immunoglobulin (hemolin), chemosensory protein and heat shock protein 70 were significantly overexpressed in response to flubendiamide, while the genes for cuticular protein, protease and oxidoreductase showed much lower expression levels. Conclusion The obtained transcriptome information provides large genomic resources available for further studies of ACB. The differentially expressed gene data will elucidate the molecular mechanisms of ACB in response to the novel diamide insecticide, flubendiamide. In particular, these findings will facilitate the identification of the genes involved in insecticide resistance and the development of new compounds to control the ACB. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3431-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Li Cui
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Changhui Rui
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Daibin Yang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Zhenying Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Huizhu Yuan
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
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Dorokhov YL, Shindyapina AV, Sheshukova EV, Komarova TV. Metabolic methanol: molecular pathways and physiological roles. Physiol Rev 2015; 95:603-44. [PMID: 25834233 DOI: 10.1152/physrev.00034.2014] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Methanol has been historically considered an exogenous product that leads only to pathological changes in the human body when consumed. However, in normal, healthy individuals, methanol and its short-lived oxidized product, formaldehyde, are naturally occurring compounds whose functions and origins have received limited attention. There are several sources of human physiological methanol. Fruits, vegetables, and alcoholic beverages are likely the main sources of exogenous methanol in the healthy human body. Metabolic methanol may occur as a result of fermentation by gut bacteria and metabolic processes involving S-adenosyl methionine. Regardless of its source, low levels of methanol in the body are maintained by physiological and metabolic clearance mechanisms. Although human blood contains small amounts of methanol and formaldehyde, the content of these molecules increases sharply after receiving even methanol-free ethanol, indicating an endogenous source of the metabolic methanol present at low levels in the blood regulated by a cluster of genes. Recent studies of the pathogenesis of neurological disorders indicate metabolic formaldehyde as a putative causative agent. The detection of increased formaldehyde content in the blood of both neurological patients and the elderly indicates the important role of genetic and biochemical mechanisms of maintaining low levels of methanol and formaldehyde.
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Affiliation(s)
- Yuri L Dorokhov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia; and N. I. Vavilov Institute of General Genetics, Russian Academy of Science, Moscow, Russia
| | - Anastasia V Shindyapina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia; and N. I. Vavilov Institute of General Genetics, Russian Academy of Science, Moscow, Russia
| | - Ekaterina V Sheshukova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia; and N. I. Vavilov Institute of General Genetics, Russian Academy of Science, Moscow, Russia
| | - Tatiana V Komarova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia; and N. I. Vavilov Institute of General Genetics, Russian Academy of Science, Moscow, Russia
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Younus F, Chertemps T, Pearce SL, Pandey G, Bozzolan F, Coppin CW, Russell RJ, Maïbèche-Coisne M, Oakeshott JG. Identification of candidate odorant degrading gene/enzyme systems in the antennal transcriptome of Drosophila melanogaster. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2014; 53:30-43. [PMID: 25038463 DOI: 10.1016/j.ibmb.2014.07.003] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 07/03/2014] [Accepted: 07/07/2014] [Indexed: 06/03/2023]
Abstract
The metabolism of volatile signal molecules by odorant degrading enzymes (ODEs) is crucial to the ongoing sensitivity and specificity of chemoreception in various insects, and a few specific esterases, cytochrome P450s, glutathione S-transferases (GSTs) and UDP-glycosyltransferases (UGTs) have previously been implicated in this process. Significant progress has been made in characterizing ODEs in Lepidoptera but very little is known about them in Diptera, including in Drosophila melanogaster, a major insect model. We have therefore carried out a transcriptomic analysis of the antennae of D. melanogaster in order to identify candidate ODEs. Virgin male and female and mated female antennal transcriptomes were determined by RNAseq. As with the Lepidoptera, we found that many esterases, cytochrome P450 enzymes, GSTs and UGTs are expressed in D. melanogaster antennae. As olfactory genes generally show selective expression in the antennae, a comparison to previously published transcriptomes for other tissues has been performed, showing preferential expression in the antennae for one esterase, JHEdup, one cytochrome P450, CYP308a1, and one GST, GSTE4. These largely uncharacterized enzymes are now prime candidates for ODE functions. JHEdup was expressed heterologously and found to have high catalytic activity against a chemically diverse group of known ester odorants for this species. This is a finding consistent with an ODE although it might suggest a general role in clearing several odorants rather than a specific role in clearing a particular odorant. Our findings do not preclude the possibility of odorant degrading functions for other antennally expressed esterases, P450s, GSTs and UGTs but, if so, they suggest that these enzymes also have additional functions in other tissues.
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Affiliation(s)
- Faisal Younus
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia; Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
| | - Thomas Chertemps
- Université Pierre et Marie Curie, Institut d'Ecologie et des Sciences de l'Environnement de Paris, F-75252 Paris, France
| | - Stephen L Pearce
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia; Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
| | - Gunjan Pandey
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia
| | - Françoise Bozzolan
- Université Pierre et Marie Curie, Institut d'Ecologie et des Sciences de l'Environnement de Paris, F-75252 Paris, France
| | - Christopher W Coppin
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia
| | - Robyn J Russell
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia
| | - Martine Maïbèche-Coisne
- Université Pierre et Marie Curie, Institut d'Ecologie et des Sciences de l'Environnement de Paris, F-75252 Paris, France
| | - John G Oakeshott
- CSIRO Ecosystems Sciences, Black Mountain, Clunies Ross Street, Canberra, ACT 0200, Australia.
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Mitchell CL, Saul MC, Lei L, Wei H, Werner T. The mechanisms underlying α-amanitin resistance in Drosophila melanogaster: a microarray analysis. PLoS One 2014; 9:e93489. [PMID: 24695618 PMCID: PMC3973583 DOI: 10.1371/journal.pone.0093489] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 03/06/2014] [Indexed: 01/25/2023] Open
Abstract
The rapid evolution of toxin resistance in animals has important consequences for the ecology of species and our economy. Pesticide resistance in insects has been a subject of intensive study; however, very little is known about how Drosophila species became resistant to natural toxins with ecological relevance, such as α-amanitin that is produced in deadly poisonous mushrooms. Here we performed a microarray study to elucidate the genes, chromosomal loci, molecular functions, biological processes, and cellular components that contribute to the α-amanitin resistance phenotype in Drosophila melanogaster. We suggest that toxin entry blockage through the cuticle, phase I and II detoxification, sequestration in lipid particles, and proteolytic cleavage of α-amanitin contribute in concert to this quantitative trait. We speculate that the resistance to mushroom toxins in D. melanogaster and perhaps in mycophagous Drosophila species has evolved as cross-resistance to pesticides, other xenobiotic substances, or environmental stress factors.
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Affiliation(s)
- Chelsea L. Mitchell
- Department of Biological Sciences, Michigan Technological University, Houghton, Michigan, United States of America
| | - Michael C. Saul
- Department of Zoology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Liang Lei
- School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, Michigan, United States of America
| | - Hairong Wei
- School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, Michigan, United States of America
| | - Thomas Werner
- Department of Biological Sciences, Michigan Technological University, Houghton, Michigan, United States of America
- * E-mail:
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Arain MS, Hu XX, Li GQ. Assessment of toxicity and potential risk of butene-fipronil using Drosophila melanogaster, in comparison to nine conventional insecticides. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 92:190-195. [PMID: 24233193 DOI: 10.1007/s00128-013-1155-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 11/06/2013] [Indexed: 06/02/2023]
Abstract
The toxicities of butene-fipronil to Drosophila melanogaster were evaluated, in comparison to nine conventional insecticides. According to the mean LD50 values of the larvae from CS, w(1118) and Oregan strains, butene-fipronil,abamectin, spinosad and chlorpyrifos exhibited high levels of toxicity. Imidacloprid, α-cypermethrin and clothianidin showed middle levels of toxicity. And acephate,methomyl and acetamiprid had low levels of toxicity. To the adults, butene-fipronil, α-cypermethrin, spinosad, and chlorpyrifos were relatively more toxic, whereas acephate,methomyl, acetamiprid, imidacloprid, clothianidin and abamectin were relatively less toxic. Butene-fipronil and abamectin were more toxic to larvae. In contrast, spinosad,a-cypermethrin, and clothianidin were more toxic to adults.Moreover, the toxic risk assessment using a risk quotient value revealed that butene-fipronil was safe to D. melanogaster adults. Thus, our results suggested that butene-fipronil is harmful to D. melanogaster larvae, but it is relatively safe to the adults.
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Wang SP, Hu XX, Meng QW, Muhammad SA, Chen RR, Li F, Li GQ. The involvement of several enzymes in methanol detoxification in Drosophila melanogaster adults. Comp Biochem Physiol B Biochem Mol Biol 2013; 166:7-14. [DOI: 10.1016/j.cbpb.2013.05.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 05/30/2013] [Accepted: 05/31/2013] [Indexed: 12/15/2022]
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