1
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Jaiswal A, Pandey AK, Mishra Y, Dubey SK. Insights into the biodegradation of fipronil through soil microcosm-omics analyses of Pseudomonas sp. FIP_ A4. CHEMOSPHERE 2024; 363:142944. [PMID: 39067829 DOI: 10.1016/j.chemosphere.2024.142944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/29/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Fipronil, a phenylpyrazole insecticide, is used to kill insects resistant to conventional insecticides. Though its regular and widespread use has substantially reduced agricultural losses, it has also caused its accumulation in various environmental niches. The biodegradation is an effective natural process that helps in reducing the amount of residual insecticides. This study deals with an in-depth investigation of fipronil degradation kinetics and pathways in Pseudomonas sp. FIP_A4 using multi-omics approaches. Soil-microcosm results revealed ∼87% degradation within 40 days. The whole genome of strain FIP_A4 comprises 4.09 Mbp with 64.6% GC content. Cytochrome P450 monooxygenase and enoyl-CoA hydratase-related protein, having 30% identity with dehalogenase detected in the genome, can mediate the initial degradation process. Proteome analysis revealed differential enzyme expression of dioxygenases, decarboxylase, and hydratase responsible for subsequent degradation. Metabolome analysis displayed fipronil metabolites in the presence of the bacterium, supporting the proposed degradation pathway. Molecular docking and dynamic simulation of each identified enzyme in complex with the specific metabolite disclosed adequate binding and high stability in the enzyme-metabolite complex. This study provides in-depth insight into genes and their encoded enzymes involved in the fipronil degradation and formation of different metabolites during pollutant degradation. The outcome of this study can contribute immensely to developing efficient technologies for the bioremediation of fipronil-contaminated soils.
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Affiliation(s)
- Anjali Jaiswal
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi- 221005, India
| | - Anand Kumar Pandey
- Department of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi- 284128, India
| | - Yogesh Mishra
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi- 221005, India
| | - Suresh Kumar Dubey
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi- 221005, India.
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2
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Robea MA, Ilie OD, Nicoara MN, Solcan G, Romila LE, Ureche D, Ciobica A. Vitamin B 12 Ameliorates Pesticide-Induced Sociability Impairment in Zebrafish ( Danio rerio): A Prospective Controlled Intervention Study. Animals (Basel) 2024; 14:405. [PMID: 38338046 PMCID: PMC10854844 DOI: 10.3390/ani14030405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Constant exposure to a variety of environmental factors has become increasingly problematic. A variety of illnesses are initiated or aided by the presence of certain perturbing factors. In the case of autism spectrum disorder, the environmental component plays an important part in determining the overall picture. Moreover, the lack of therapies to relieve existing symptoms complicates the fight against this condition. As a result, animal models have been used to make biomedical research easier and more suited for disease investigations. The current study used zebrafish as an animal model to mimic a real-life scenario: acute exposure to an increased dose of pesticides, followed by prospective intervention-based therapy with vitamin B12 (vit. B12). It is known that vit. B12 is involved in brain function nerve tissue, and red blood cell formation. Aside from this, the role of vit. B12 in the redox processes is recognized for its help against free radicals. To investigate the effect of vit. B12, fish were divided into four different groups and exposed to a pesticide mixture (600 μg L-1 fipronil + 600 μg L-1 pyriproxyfen) and 0.24 μg L-1 vit. B12 for 14 days. The impact of the compounds was assessed daily with EthoVision XT 11.5 software for behavioral observations, especially for sociability, quantified by the social interaction test. In addition, at the end of the study, the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), and malondialdehyde (MDA) were measured. The results showed significant improvements in locomotor activity parameters and a positive influence of the vitamin on sociability. Regarding the state of oxidative stress, high activity was found for SOD and GPx in the case of vit. B12, while fish exposed to the mixture of pesticides and vit. B12 had a lower level of MDA. In conclusion, the study provides new data about the effect of vit. B12 in zebrafish, highlighting the potential use of vitamin supplementation to maintain and support the function of the organism.
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Affiliation(s)
- Madalina Andreea Robea
- Doctoral School of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Bd. Carol I, 20A, 700505 Iasi, Romania;
| | - Ovidiu Dumitru Ilie
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street No. 16, 700115 Iasi, Romania;
| | - Mircea Nicusor Nicoara
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Bd. Carol I, 20A, 700505 Iasi, Romania;
- Doctoral School of Geosciences, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, 700505 Iasi, Romania
| | - Gheorghe Solcan
- Internal Medicine Clinic, Faculty of Veterinary Medicine, Ion Ionescu de la Brad Iasi University of Life Sciences, 700489 Iasi, Romania;
| | | | - Dorel Ureche
- Department of Biology, Ecology and Environmental Protection, Faculty of Sciences, University “Vasile Alecsandri“ of Bacau, Calea Marasesti Street, No. 157, 600115 Bacau, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Bd. Carol I, 20A, 700505 Iasi, Romania;
- Academy of Romanian Scientists, 54, Independence Street, Sector 5, 050094 Bucharest, Romania
- Center of Biomedical Research, Romanian Academy, Iasi Branch, Teodor Codrescu 2, 700481 Iasi, Romania
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3
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Ma Y, Zhu Q, Luo S, Zhang F, Liu L, Mengxue Z, Zhang Z, Cao X, Qiu X, Zeng X, Ji D, Li C, Zhong X, Wang J, Wei Y. Environmentally relevant concentrations of fipronil selectively disrupt venous vessel development in zebrafish embryos/larvae. CHEMOSPHERE 2023:139146. [PMID: 37290517 DOI: 10.1016/j.chemosphere.2023.139146] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/29/2023] [Accepted: 06/04/2023] [Indexed: 06/10/2023]
Abstract
The pesticide fipronil is widely dispersed in aquatic environments and frequently detected in the general population. Although the adverse effects on embryonic growth by fipronil exposure have been extensively documented, the early responses for its developmental toxicity are largely unknown. In the present study, we explored the sensitive targets of fipronil, focusing on vascular injury using zebrafish embryos/larvae and cultured human endothelial cells. Exposure to 5-500 μg/L fipronil at the early stage impeded the growth of sub-intestinal venous plexus (SIVP), caudal vein plexus (CVP), and common cardinal veins (CCV). The damages on venous vessels occurred at exposure to the environmentally relevant concentration as low as 5 μg/L fipronil, whereas no significant change was observed in general toxicity indexes. In contrast, vascular development of the dorsal aorta (DA) or intersegmental artery (ISA) was not affected. In addition, the mRNA levels of vascular markers and vessel type-specific function genes exhibited significant decreases in venous genes, including nr2f2, ephb4a, and flt4, but no appreciable change in arterial genes. Likewise, the more pronounced changes in cell death and cytoskeleton disruption were shown in human umbilical vein endothelial cells as compared with human aortic endothelial cells. Furthermore, molecular docking supported a stronger affinity of fipronil and its metabolites to the proteins correlated with venous development, such as BMPR2 and SMARCA4. These results reveal the heterogeneity in developing vasculature responsive to fipronil's exposure. The preferential impacts on the veins confer higher sensitivity, allowing them to be appropriate targets for monitoring fipronil's developmental toxicity.
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Affiliation(s)
- Ya Ma
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Qicheng Zhu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Shili Luo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Fenghong Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Lei Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Zhi Mengxue
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Zhuyi Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiaolian Cao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xuelin Qiu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiangyu Zeng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Di Ji
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chenxin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiali Zhong
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jianshe Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China.
| | - Yanhong Wei
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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4
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Dourado PLR, Lima D, Mattos JJ, Bainy ACD, Grott SC, Alves TC, de Almeida EA, da Silva DGH. Fipronil impairs the GABAergic brain responses of Nile Tilapia during the transition from normoxia to acute hypoxia. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:138-152. [PMID: 36216792 DOI: 10.1002/jez.2662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Abstract
γ-aminobutyric acid (GABA) is one of the main neurotransmitters involved in the adaptation processes against the damage that hypoxia can cause to the brain. Due to its antagonist action on GABA receptors, the insecticide fipronil can turn the fish more susceptible to the negative effects of hypoxia. This study aimed to understand better if fipronil affects these GABAergic responses of Tilapia ahead to hypoxia. Oreochromis Niloticus (Nile Tilapia) were exposed for 3 and 8 h to fipronil (0.0, 0.1, and 0.5 µg.L-1 ) under normoxia (dissolved O2 > 6 mg.L-1 ) and moderate hypoxia (dissolved O2 < 2 mg.L-1 ) conditions. Briefly, hypoxia caused opposite effects on the gene transcription of the evaluated ionotropic and metabotropic GABA receptors. Unexpectedly, we obtained reduced HIF1A mRNA and brain GABA levels, mostly in the first 3 h of the experiment, for the hypoxic group compared with the normoxia one. Besides that, we also demonstrated that the insecticide fipronil impairs the brain GABAergic signaling of a hypoxia-tolerant fish during the transition from a normoxic to an acute hypoxic state. Thus, these results predict the relevant impact on the brain metabolic adaptations of fishes exposed to such stressful conditions in an aquatic environment, as well as the effects of fipronil in the GABAergic responses to hypoxia, which in turn may have ecological and physiological significance to hypoxia-tolerant fishes exposed to this insecticide.
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Affiliation(s)
- Priscila L R Dourado
- Department of Chemistry and Environmental Sciences, São Paulo State University (UNESP), São José do Rio Preto, Brazil
| | - Daína Lima
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó J Mattos
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Afonso C D Bainy
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Suelen C Grott
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Thiago C Alves
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Danilo G Humberto da Silva
- Campus de Três Lagoas, Universidade Federal de Mato Grosso do Sul (CPTL/UFMS), Mato Grosso do Sul, Brazil
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5
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Moreira RA, Polo-Castellano C, Cordero-de-Castro A, Dias MA, Pinto TJS, Montagner CC, Espíndola ELG, Blasco J, Araújo CVM. Short and long-term exposure to the pesticides fipronil and 2,4-D: Effects on behavior and life history of Daphnia magna. CHEMOSPHERE 2023; 310:136719. [PMID: 36206917 DOI: 10.1016/j.chemosphere.2022.136719] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
The high levels of contamination in aquatic ecosystems caused by pesticides and the organisms' consequent continuous exposure to it has made them vulnerable to damage. However, mobile organisms can avoid this continued exposure to contaminants by moving to less disturbed habitats. Therefore, through the use of the Heterogenous Multi-Habitat Assay System (HeMHAS), our objective was to evaluate the ability of Daphnia magna to detect and avoid habitats contaminated by fipronil and 2,4-D, in a spatially connected landscape. Further, the role of contamination by these pesticides, isolated and in mixtures, concerning the colonization of habitats by daphnids was also evaluated. Given that not all organisms successfully escape contamination, the chronic toxicity of the same pesticides using different parameters for D. magna (maternal survival, fecundity and maternal body length) was also evaluated. When evaluating the avoidance response by D. magna exposed to pesticides, there was no preference for the less contaminated areas for both compounds. However, organisms did not move to contaminated zones in the colonization experiments, with no immigration of daphnids to the zones with intermediate and the highest levels of fipronil, nor to the highest concentration of 2,4-D. Finally, the colonization by daphnids was significantly prevented when exposed to a mixture of the pesticides, in which the areas with the highest combinations of pesticide concentrations were not colonized by D. magna. Regarding the long-term chronic effects, negative consequences were observed, particularly for maternal body length, fecundity and maternal survival, due to the exposure to fipronil. Considering that pesticides can limit the areas colonized by organisms by making them unattractive, the risk of local population extinction may be underestimated if only standard endpoints involving forced exposure are studied.
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Affiliation(s)
- Raquel A Moreira
- NEEA/CRHEA/SHS and PPG-SEA, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970, São Carlos, Brazil.
| | - Curro Polo-Castellano
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN - CSIC). Campus Universitario Río San Pedro, 11519, Puerto Real, Spain
| | - Andrea Cordero-de-Castro
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN - CSIC). Campus Universitario Río San Pedro, 11519, Puerto Real, Spain
| | - Mariana A Dias
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Thandy J S Pinto
- NEEA/CRHEA/SHS and PPG-SEA, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970, São Carlos, Brazil
| | - Cassiana C Montagner
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Evaldo L G Espíndola
- NEEA/CRHEA/SHS and PPG-SEA, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970, São Carlos, Brazil
| | - Julián Blasco
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN - CSIC). Campus Universitario Río San Pedro, 11519, Puerto Real, Spain
| | - Cristiano V M Araújo
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN - CSIC). Campus Universitario Río San Pedro, 11519, Puerto Real, Spain
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6
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Insights into the toxicity and biodegradation of fipronil in contaminated environment. Microbiol Res 2022; 266:127247. [DOI: 10.1016/j.micres.2022.127247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/05/2022]
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7
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Siddiqui JA, Luo Y, Sheikh UAA, Bamisile BS, Khan MM, Imran M, Hafeez M, Ghani MI, Lei N, Xu Y. Transcriptome analysis reveals differential effects of beta-cypermethrin and fipronil insecticides on detoxification mechanisms in Solenopsis invicta. Front Physiol 2022; 13:1018731. [PMID: 36277215 PMCID: PMC9583148 DOI: 10.3389/fphys.2022.1018731] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/22/2022] [Indexed: 11/29/2022] Open
Abstract
Insecticide resistance poses many challenges in insect pest control, particularly in the control of destructive pests such as red imported fire ants (Solenopsis invicta). In recent years, beta-cypermethrin and fipronil have been extensively used to manage invasive ants, but their effects on resistance development in S. invicta are still unknown. To investigate resistance development, S. invicta was collected from populations in five different cities in Guangdong, China. The results showed 105.71- and 2.98-fold higher resistance against fipronil and beta-cypermethrin, respectively, in the Guangzhou population. The enzymatic activities of acetylcholinesterase, carboxylases, and glutathione S-transferases significantly increased with increasing beta-cypermethrin and fipronil concentrations. Transcriptomic analysis revealed 117 differentially expressed genes (DEGs) in the BC-ck vs. BC-30 treatments (39 upregulated and 78 downregulated), 109 DEGs in F-ck vs. F-30 (33 upregulated and 76 downregulated), and 499 DEGs in BC-30 vs. F-30 (312 upregulated and 187 downregulated). Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that DEGs associated with insecticide resistance were significantly enriched in metabolic pathways, the AMPK signaling pathway, the insulin signaling pathway, carbon metabolism, peroxisomes, fatty acid metabolism, drug metabolism enzymes and the metabolism of xenobiotics by cytochrome P450. Furthermore, we found that DEGs important for insecticide detoxification pathways were differentially regulated under both insecticide treatments in S. invicta. Comprehensive transcriptomic data confirmed that detoxification enzymes play a significant role in insecticide detoxification and resistance development in S. invicta in Guangdong Province. Numerous identified insecticide-related genes, GO terms, and KEGG pathways indicated the resistance of S. invicta workers to both insecticides. Importantly, this transcriptome profile variability serves as a starting point for future research on insecticide risk evaluation and the molecular mechanism of insecticide detoxification in invasive red imported fire ants.
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Affiliation(s)
- Junaid Ali Siddiqui
- Department of Entomology, South China Agricultural University, Guangzhou, China
- College of Agriculture, College of Tobacco Science, Guizhou University, Guiyang, China
| | - Yuanyuan Luo
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, Beijing, China
- *Correspondence: Yuanyuan Luo, ; Yijuan Xu,
| | | | | | - Muhammad Musa Khan
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Muhammad Imran
- State Key Laboratory for the Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Muhammad Hafeez
- State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Muhammad Imran Ghani
- College of Agriculture, College of Tobacco Science, Guizhou University, Guiyang, China
| | - Nie Lei
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Yijuan Xu
- Department of Entomology, South China Agricultural University, Guangzhou, China
- *Correspondence: Yuanyuan Luo, ; Yijuan Xu,
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8
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Xiong T, Ling SQ, Liu JL, Zeng XN. Insecticidal and P450 mediate metabolism of fluralaner against red imported fire ant, Solenopsis invicta (Hymenoptera: Formicidae). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 187:105184. [PMID: 36127046 DOI: 10.1016/j.pestbp.2022.105184] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
The red imported fire ant (Solenopsis invicta), a worldwide invasive and polyphagous pest, and often nests in residential areas. Finding an alternative pesticide that is both effective on S. invicta and environmentally friendly is urgent and crucial. Fluralaner, a novel isoxazoline insecticide, has been proven to possess selective toxicity for insects versus mammals and has been safe for mammals and non-target organisms, suggesting its potential in pest management. However, little toxicity information is available for the controlment of S. invicta. In this article, we studied the toxicity of fluralaner against S. invicta systematically, and the roles of metabolism-related enzymes in the metabolism process of fluralaner. The toxicity results showed that the topical application and feeding application were all effective for S. invicta. Moreover, fluralaner can be transmitted among workers by contacting and feeding which leads to a toxic reaction among nestmates. By exploring the biochemistry change, we found cytochrome P450 monooxygenase (P450) may be involved in the detoxification of fluralaner as well as carboxylesterase (CarE), but not glutathione S-transferase (GST). Synergism assays gave solid evidence in which piperonyl butoxide, an activity inhibitor of P450, increased the toxicity of fluralaner to S. invicta. Importantly, with the RNAi treatment, four of S.invicta P450 genes were significantly inhibited and showed more sensitivity to fluralaner at LC50 concentration. Our result indicated that fluralaner could be a potential alternative pesticide in S. invicta control. And CYP9AS16, CYP6AS161, CYP6SQ20, and CYP336A45 genes were closely associated with the metabolism process of fluralaner.
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Affiliation(s)
- Ting Xiong
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; Engineering Research Center for Forest and Grassland Disaster Prevention and Reduction, Mianyang Normal University, Mianxing West Road, 621000 Mianyang, China
| | - Si-Quan Ling
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
| | - Jia-Li Liu
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
| | - Xin-Nian Zeng
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China.
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9
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Zhang A, Xu L, Liu Z, Zhang J, Han L, Zhao K. The effects of acetamiprid multigeneration stress on metabolism and physiology of Aphis glycines Matsumura (Hemiptera: Aphididae). ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2022; 110:e21903. [PMID: 35416322 DOI: 10.1002/arch.21903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/15/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Aphis glycines Matsumura (Hemiptera: Aphididae) is a major soybean pest that often poses a serious threat to soybean production. In this study, we checked the effects of acetamiprid on redox, energy metabolism, and hormone expression in A. glycines. The LC50 and LC30 of acetamiprid were used to treat the fourth instar nymphs in each generation from F0 to F4 to measure the activity of peroxidase, pyruvate kinase, and trehalase using a microassays approach. The peroxidase activity was significantly higher than control when treated with the LC30 of acetamiprid in F2-F5 generations. The activity of pyruvate kinase was significantly higher, while trehalase activity was substantially lower than control in each generation. Besides, we monitored molting and juvenile hormone expression in soybean aphids using enzyme-linked immunosorbent assay. The juvenile hormone titer of third instar nymphs was significantly higher in the treatment group (F1, F2, F4, and F5), while no effects were noted in the F3 generation. Taken together, the activity of peroxidase and pyruvate kinase in soybean aphid first increased to the peak and then decreased, while the trehalase activity continuously decreased in all generations following exposure to acetamiprid. The juvenile hormone titer was significantly higher, while the molting hormone titer was significantly lower in LC50 -treated aphids than in control. Moreover, the LC30 of acetamiprid increased the molting hormone expression in soybean aphids. These findings indicated a baseline for the effective use of acetamiprid in controlling soybean aphids.
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Affiliation(s)
- Aonan Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Ling Xu
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Ziqi Liu
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Jiabo Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Lanlan Han
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Kuijun Zhao
- College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, China
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10
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Siddiqui JA, Khan MM, Bamisile BS, Hafeez M, Qasim M, Rasheed MT, Rasheed MA, Ahmad S, Shahid MI, Xu Y. Role of Insect Gut Microbiota in Pesticide Degradation: A Review. Front Microbiol 2022; 13:870462. [PMID: 35591988 PMCID: PMC9111541 DOI: 10.3389/fmicb.2022.870462] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 02/25/2022] [Indexed: 01/09/2023] Open
Abstract
Insect pests cause significant agricultural and economic losses to crops worldwide due to their destructive activities. Pesticides are designed to be poisonous and are intentionally released into the environment to combat the menace caused by these noxious pests. To survive, these insects can resist toxic substances introduced by humans in the form of pesticides. According to recent findings, microbes that live in insect as symbionts have recently been found to protect their hosts against toxins. Symbioses that have been formed are between the pests and various microbes, a defensive mechanism against pathogens and pesticides. Insects' guts provide unique conditions for microbial colonization, and resident bacteria can deliver numerous benefits to their hosts. Insects vary significantly in their reliance on gut microbes for basic functions. Insect digestive tracts are very different in shape and chemical properties, which have a big impact on the structure and composition of the microbial community. Insect gut microbiota has been found to contribute to feeding, parasite and pathogen protection, immune response modulation, and pesticide breakdown. The current review will examine the roles of gut microbiota in pesticide detoxification and the mechanisms behind the development of resistance in insects to various pesticides. To better understand the detoxifying microbiota in agriculturally significant pest insects, we provided comprehensive information regarding the role of gut microbiota in the detoxification of pesticides.
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Affiliation(s)
- Junaid Ali Siddiqui
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Muhammad Musa Khan
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | | | - Muhammad Hafeez
- State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Muhammad Qasim
- Department of Agriculture and Forestry, Kohsar University Murree, Punjab, Pakistan
| | - Muhammad Tariq Rasheed
- Department of Life Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Muhammad Atif Rasheed
- Department of Entomology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Sajjad Ahmad
- Key Laboratory of Integrated Pest Management of Crop in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | | | - Yijuan Xu
- Department of Entomology, South China Agricultural University, Guangzhou, China
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Reinwald H, Alvincz J, Salinas G, Schäfers C, Hollert H, Eilebrecht S. Toxicogenomic profiling after sublethal exposure to nerve- and muscle-targeting insecticides reveals cardiac and neuronal developmental effects in zebrafish embryos. CHEMOSPHERE 2022; 291:132746. [PMID: 34748799 DOI: 10.1016/j.chemosphere.2021.132746] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/15/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
For specific primary modes of action (MoA) in environmental non-target organisms, EU legislation restricts the usage of active substances of pesticides or biocides. Corresponding regulatory hazard assessments are costly, time consuming and require large numbers of non-human animal studies. Currently, predictive toxicology of development compounds relies on their chemical structure and provides little insights into toxicity mechanisms that precede adverse effects. Using the zebrafish embryo model, we characterized transcriptomic responses to a range of sublethal concentrations of six nerve- and muscle-targeting insecticides with different MoA (abamectin, carbaryl, chlorpyrifos, fipronil, imidacloprid & methoxychlor). Our aim was to identify affected biological processes and suitable biomarker candidates for MoA-specific signatures. Abamectin showed the most divergent signature among the tested insecticides, linked to lipid metabolic processes. Differentially expressed genes (DEGs) after imidacloprid exposure were primarily associated with immune system and inflammation. In total, 222 early responsive genes to either MoA were identified, many related to three major processes: (1) cardiac muscle cell development and functioning (tcap, desma, bag3, hspb1, hspb8, flnca, myoz3a, mybpc2b, actc2, tnnt2c), (2) oxygen transport and hypoxic stress (alas2, hbbe1.1, hbbe1.3, hbbe2, hbae3, igfbp1a, hif1al) and (3) neuronal development and plasticity (npas4a, egr1, btg2, ier2a, vgf). The thyroidal function related gene dio3b was upregulated by chlorpyrifos and downregulated by higher abamectin concentrations. Important regulatory genes for cardiac muscle (tcap) and forebrain development (npas4a) were the most frequently ifferentially expressed across all insecticide treatments. We consider the identified gene sets as useful early warning biomarker candidates, i.e. for developmental toxicity targeting heart and brain in aquatic vertebrates. Our findings provide a better understanding about early molecular events in response to the analyzed MoA. Perceptively, this promotes the development for sensitive and informative biomarker-based in vitro assays for toxicological MoA prediction and AOP refinement, without the suffering of adult fish.
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Affiliation(s)
- Hannes Reinwald
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany; Department Evolutionary Ecology and Environmental Toxicology, Faculty Biological Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Julia Alvincz
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany
| | - Gabriela Salinas
- NGS-Services for Integrative Genomics, University of Göttingen, Göttingen, Germany
| | - Christoph Schäfers
- Department of Ecotoxicology, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany
| | - Henner Hollert
- Department Evolutionary Ecology and Environmental Toxicology, Faculty Biological Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Sebastian Eilebrecht
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany.
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Viana NP, da Silva LCM, Portruneli N, Soares MP, Cardoso IL, Bonansea RI, Goulart BV, Montagner CC, Espíndola ELG, Wunderlin DA, Fernandes MN. Bioconcentration and toxicological impacts of fipronil and 2,4-D commercial formulations (single and in mixture) in the tropical fish, Danio rerio. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:11685-11698. [PMID: 34546525 DOI: 10.1007/s11356-021-16352-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
The insecticide fipronil and the herbicide 2,4-D are the most applied pesticides in sugarcane crops leading to aquatic contamination. The whole-body bioconcentration of fipronil and 2,4-D, single and in mixture, was evaluated in Danio rerio after 96-h exposure. The activities of catalase (CAT) and glutathione S-transferase(GST) in whole body and in the gills and the acetylcholinesterase (AChE) in muscle were determined. The gill histopathology and the morphology of the pavement (PVC) and the mitochondria-rich(MRC) cells at gill surface were analyzed. Bioconcentration occurred after exposure to fipronil (2.69 L kg-1) and 2,4-D (1.73 L kg-1) single and in mixture of fipronil (3.10 L kg-1) and 2,4-D (1.27 L kg-1). Whole-body CAT activity was unchanged, and its activity decreased in the gills after exposure to fipronil and increased after exposure to 2,4-D and mixture. GST and AChE increased after single exposure to each pesticide and mixture of both. Fish exposed to mixture increased the MRC fractional area (MRCFA) which suggested possible ionic regulation disturbance and reduced the microridge of the PVC surface. Synergistic interactions occurred in the CAT activity and MRCFA after exposure to mixture of pesticides. The results indicate that the recommended application dose of fipronil and 2,4-D, single or in mixture, for sugarcane crops affects this fish species altering its homeostasis.
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Affiliation(s)
- Natália Prudêncio Viana
- Programa de Pós-graduação em Ecologia e Recursos Naturais, Universidade Federal de São Carlos, Rodovia Washington Luiz, km 235, São Carlos, São Paulo, 13565-905, Brazil
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Laís Conceição Menezes da Silva
- Programa de Pós-graduação em Ciências da Engenharia Ambiental, Escola de Engenharia de São Carlos (NEEA/CRHEA/SHS), Universidade de São Paulo, Av. Trabalhador São-Carlense, 400, São Carlos, SP, 13566-590, Brazil
| | - Natália Portruneli
- Programa de Pós-graduação em Ecologia e Recursos Naturais, Universidade Federal de São Carlos, Rodovia Washington Luiz, km 235, São Carlos, São Paulo, 13565-905, Brazil
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Michelly Pereira Soares
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
- Programa Interinstitucional de Pós-graduação em Ciências Fisiológicas, Universidade Federal de São Carlos/Universidade Estadual de São Paulo, Rodovia Washington Luiz, km 235, São Carlos, São Paulo, 13565-905, Brazil
| | - Israel Luz Cardoso
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
- Programa Interinstitucional de Pós-graduação em Ciências Fisiológicas, Universidade Federal de São Carlos/Universidade Estadual de São Paulo, Rodovia Washington Luiz, km 235, São Carlos, São Paulo, 13565-905, Brazil
| | - Rocío Inés Bonansea
- Faculdade de Ciências Químicas, Universidade Nacional de Córdoba, Córdoba, Argentina
| | - Bianca Veloso Goulart
- Instituto de Química, Universidade de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, SP, 13083-970, Brazil
| | - Cassiana Carolina Montagner
- Instituto de Química, Universidade de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, SP, 13083-970, Brazil
| | - Evaldo Luiz Gaeta Espíndola
- Programa de Pós-graduação em Ciências da Engenharia Ambiental, Escola de Engenharia de São Carlos (NEEA/CRHEA/SHS), Universidade de São Paulo, Av. Trabalhador São-Carlense, 400, São Carlos, SP, 13566-590, Brazil
| | | | - Marisa Narciso Fernandes
- Programa de Pós-graduação em Ecologia e Recursos Naturais, Universidade Federal de São Carlos, Rodovia Washington Luiz, km 235, São Carlos, São Paulo, 13565-905, Brazil.
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil.
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13
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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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Wang Y, Chen C, Yang G, Wang X, Wang Q, Weng H, Zhang Z, Qian Y. Combined lethal toxicity, biochemical responses, and gene expression variations induced by tebuconazole, bifenthrin and their mixture in zebrafish (Danio rerio). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113116. [PMID: 34979316 DOI: 10.1016/j.ecoenv.2021.113116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Pesticides commonly occur as mixtures in an aqueous environment, causing deleterious effects on human health and the environment. However, the mechanism underlying the combined effects on aqueous organisms remains largely unknown, especially at low concentrations. In the current study, we inspected the interactive toxicity of tebuconazole (TEB), a triazole fungicide, and bifenthrin (BIF), a pyrethroid insecticide, to zebrafish (Danio rerio) using various toxicological assays. Our data revealed that the 96 h-LC50 (lethal concentration 50) values of BIF to fish at different life periods (embryonic, larval, juvenile, and adult periods) ranged from 0.013 (0.011-0.016) to 0.41 (0.35-0.48) mg a.i. L-1, which were lower than that of TEB ranging from 1.1 (0.88-1.3) to 4.8 (4.1-5.7) mg a.i. L-1. Combination of TEB and BIF induced synergetic acute toxicity to embryonic fish. Activities of T-SOD, POD, and GST were distinctly altered in most individual and joint administrations. Expressions of 16 genes associated with oxidative stress, cellular apoptosis, immune system, and endocrine system at the mRNA level were evaluated, and the information revealed that embryonic zebrafish were impacted by both individual compounds and their combinations. Six genes (cas9, P53, gr, TRα, IL-8, and cxcl-clc) exhibited greater changes when exposed to pesticide mixtures. Therefore, the joint effects induced by the pesticides at low concentrations should be considered in the risk assessment of mixtures and regulated as priorities for mixture risk management in the aqueous ecosystem. More research is needed to identify the threshold concentrations of the realistic pesticide mixtures above which synergistic interactions occur.
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Affiliation(s)
- Yanhua Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Chen Chen
- School of Public Health, Shandong University, Jinan 250012, Shandong, China
| | - Guiling Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Qiang Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Hongbiao Weng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Zhiheng Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.
| | - Yongzhong Qian
- Key Laboratory of Agro-Product Quality and Safety of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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15
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Cuenca ALR, Simonato JD, Meletti PC. Acute exposure of embryo, larvae and adults of Danio rerio to fipronil commercial formulation reveals effects on development and motor control. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:114-123. [PMID: 34748160 DOI: 10.1007/s10646-021-02497-0] [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] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
The insecticide fipronil, one of the main pesticides used in Brazil, is often detected in natural aquatic environments, and causes neuronal hyperexcitation by inhibiting GABAergic neurotransmission, leading to putative alterations in behaviour and development. This work sought to analyse the toxicity of formulated Regent® 800WG (80% fipronil) on development (fish embryo toxicity test, FET), morphology, and swimming behaviour of larvae and adults of zebrafish (Danio rerio). FET was performed following OECD236 guidelines at concentrations ranging from 0.002 to 1600 μg.L-1 of formulated Regent® 800WG. Adults were exposed to 0.2, 2 and 20 μg.L-1 of the product for 24 and 96 h, and were submitted to the light-dark, novel tank and swimming endurance tests No lethal parameters were observed in larvae, but in concentrations above 400 µg.L-1, there was shortening of the body axis and decreased swimming behavior. In adults, exposure to the pesticide did not lead to changes in free swimming parameters. However, a marked decrease of swimming endurance was observed at all experimental treatments, although probably not in consequence of energetic depletion, since baseline blood glucose levels and condition factor were similar at all conditions. Furthermore, zebrafish adults did not show their natural preference for the dark environment. The pesticide likely has anxiolytic effects on zebrafish, as well as a compromising effect on locomotor control, illustrating that behavioural changes, which could affect activities on the natural environment, such as escape and predation, may occur even in environmentally relevant concentrations of this pollutant.
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Affiliation(s)
- André L R Cuenca
- Programa de Pós-Graduação em Zoologia, Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná - Centro Politécnico, 81530-000, Curitiba, PR, Brazil.
| | - Juliana D Simonato
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, 86057-970, Londrina, PR, Brazil
| | - Paulo C Meletti
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, 86057-970, Londrina, PR, Brazil
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Al-Badran AA, Fujiwara M, Mora MA, Gatlin DM. The adverse effects of the phenylpyrazole, fipronil, on juvenile white shrimp Litopenaeus setiferus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:58688-58700. [PMID: 34120279 DOI: 10.1007/s11356-021-14651-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Chemical pesticides are commonly used world-wide, and they can flow into estuaries and affect non-targeted organisms. We evaluated the effects of six concentrations of the phenylpyrazole, fipronil (0.0, 0.005, 0.01, 0.1, 1.0, and 3.0 μg/L), which are environmentally relevant, on white shrimp Litopenaeus setiferus (initially averaging 0.80 ± 0.08 g/shrimp). Compared with the control, survivorship of shrimp over 45 days declined significantly at the higher concentration treatments. Growth was affected at all concentrations, and the percent weight gain decreased significantly. Inter-molt intervals were longer in all treatments. Changes in swimming and feeding behavior of shrimp were observed under all treatments, and change in body color was observed at higher concentration treatments. Lipid content in shrimp decreased significantly while ash content increased with fipronil concentration. Fipronil adversely affected white shrimp under the concentrations observed in the environment and monitoring of fipronil use is needed in coastal areas.
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Affiliation(s)
- Ali Abdulameer Al-Badran
- Department of Fisheries and Marine Resources, College of Agriculture, University of Basrah, Basrah, Iraq.
| | - Masami Fujiwara
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, Texas, TX, USA
| | - Miguel A Mora
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, Texas, TX, USA
| | - Delbert M Gatlin
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, Texas, TX, USA
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Song X, Wang X, Liao G, Pan Y, Qian Y, Qiu J. Toxic effects of fipronil and its metabolites on PC12 cell metabolism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112677. [PMID: 34450423 DOI: 10.1016/j.ecoenv.2021.112677] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Fipronil and its metabolites (fipronil sulfone, fipronil sulfide and fipronil desulfinyl) adversely affect the environment and human health. Targeted metabolomics and lipidomics based on ultra-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was used to analyse the alterations of glycerophospholipids and amino acids after exposure to fipronil and its metabolites at dosages of 0.5, 12.5 and 50 μM for 72 h and to evaluate their different toxic effects. Results showed that fipronil sulfone and fipronil desulfinyl are more toxic than their parent compound, with fipronil desulfinyl as the most toxic and fipronil sulfide as the least toxic. Fipronil and its metabolites affected the metabolism of PC18:1/16:0, PI18:0/20:4, arginine, leucine and tyrosine and the "phenylalanine, tyrosine and tryptophan biosynthesis" pathway, indicating their possible inducing role in cellular macromolecule damage, nerve signal transmission disturbance and energy metabolism disruption caused by oxidative stress. Importantly, fipronil sulfone and fipronil desulfinyl more strongly influenced lipid and amino acid metabolism, mainly reflected in the number of changed glycerophospholipids and differential metabolites associated with oxidative stress, including PS18:0/20:4, glutamate, phenylalanine and histidine for fipronil sulfone and PS18:0/20:4, glutamate, phenylalanine, serine and aspartic acid for fipronil desulfinyl. Therefore, the higher toxicity of fipronil desulfinyl and fipronil sulfone may be also related to oxidative stress. This study provides implications for risk assessment and toxic mechanism research on fipronil and its metabolites.
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Affiliation(s)
- Xiao Song
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xinlu Wang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Guangqin Liao
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yecan Pan
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
| | - Jing Qiu
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
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18
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Santillán Deiú A, Ondarza PM, Miglioranza KSB, de la Torre FR. Multibiomarker responses and bioaccumulation of fipronil in Prochilodus lineatus exposed to spiked sediments: Oxidative stress and antioxidant defenses. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 177:104876. [PMID: 34301349 DOI: 10.1016/j.pestbp.2021.104876] [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: 09/30/2020] [Revised: 04/19/2021] [Accepted: 05/17/2021] [Indexed: 06/13/2023]
Abstract
Fipronil is a current use pesticide, widely used in many crops, commonly adsorbed to sediments of aquatic environments. The purpose of this study was to evaluate the biomarker responses and fipronil distribution pattern in different matrixes (fish, sediment and water) after juveniles P. lineatus exposure at two environmental concentrations (5.5 and 82 μg kg--1) of fipronil-spiked sediments. The levels of oxidized proteins (PO), lipid peroxidation (LPO), and enzymatic activity of superoxide dismutase (SOD), reduced glutathione content (GSH), antioxidant capacity against peroxyls (ACAP) and acetylcholinesterase (AChE) were evaluated in liver, gills and brain. Concentrations of fipronil and its metabolites (f. desulfinyl, f sulphpHide and f. sulfone) were quantified by GC-ECD. F. desulfinyl was the major metabolite found in all matrixes, followed by f. sulphide in sediments, while f. sulfone was mainly accumulated in fish. Fipronil promoted oxidative stress in P. lineatus, as evidenced by the increases in LPO and PO levels and the decrease brain AChE activity. Fish exposed at both concentrations showed significant decrease in antioxidant capacity. Alterations in the antioxidant defenses system was evidenced in all organs. These results suggest that the occurrence of fipronil in aquatic environments can generate oxidative stress at different levels in P. lineatus, showing that this species is highly sensitive to the deleterious effects of fipronil and metabolites.
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Affiliation(s)
- Antonela Santillán Deiú
- Grupo de Estudios de Contaminación Antrópica de Peces (GECAP), Departamento de Ciencias Básicas e INEDES, Universidad Nacional de Luján (UNLu-CONICET), Rutas 5 y 7, Luján 6700, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Paola M Ondarza
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC-CONICET), Universidad Nacional de Mar del Plata, D Funes 3350, Mar del Plata 7600, Argentina
| | - Karina S B Miglioranza
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC-CONICET), Universidad Nacional de Mar del Plata, D Funes 3350, Mar del Plata 7600, Argentina
| | - Fernando R de la Torre
- Grupo de Estudios de Contaminación Antrópica de Peces (GECAP), Departamento de Ciencias Básicas e INEDES, Universidad Nacional de Luján (UNLu-CONICET), Rutas 5 y 7, Luján 6700, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
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19
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Jiménez K, Solano K, Scholz C, Redondo-López S, Mena F. Early Toxic Effects in a Central American Native Fish (Parachromis dovii) Exposed to Chlorpyrifos and Difenoconazole. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1940-1949. [PMID: 33749893 DOI: 10.1002/etc.5048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/22/2020] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
In Costa Rica, agriculture is one of the most important economic activities. Chlorpyrifos and difenoconazole have been identified as agrochemicals widely used in banana and pineapple crops in the Caribbean area of the country and are constantly recorded in aquatic ecosystems. The toxicity of these pesticides in Parachromis dovii was studied. Median lethal concentrations (LC50s) for each substance were obtained from 96-h acute tests. Then, fish were exposed to sublethal concentrations of both substances (10% of LC50), individually and in mixture, to evaluate biomarker responses. Ethoxyresorufin-O-deethylase (EROD), catalase, and glutathione S-transferase activities as well as lipid peroxidation were measured in liver and gill tissues as markers of biotransformation and oxidative stress processes. Cholinesterase activity in brain and muscle tissue was also quantified as a biomarker of toxicity. The LC50s were 55.34 μg/L (95% confidence interval [CI] 51.06-59.98) for chlorpyrifos and 3250 μg/L (95% CI 2770-3810) for difenoconazole. Regarding the biomarkers, a significant inhibition of brain and muscle cholinesterase activity was recorded in fish exposed to 5.50 μg/L of chlorpyrifos. This activity was not affected when fish were exposed to the mixture of chlorpyrifos with difenoconazole. Significant changes in lactate dehydrogenase activity were observed in fish exposed to 325 μg/L of difenoconazole, whereas fish exposed to the mixture showed a significant increase in EROD activity in the liver. These results suggest harmful effects of chlorpyrifos insecticide at environmentally relevant concentrations. There is also evidence for an interaction of the 2 substances that affects the biotransformation metabolism at sublethal levels of exposure. Environ Toxicol Chem 2021;40:1940-1949. © 2021 SETAC.
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Affiliation(s)
- Katherine Jiménez
- Master's Program in Tropical Ecotoxicology, Central American Institute for Studies on Toxic Substances/Instituto Regional de Estudios en Sustancias Tóxicas, Universidad Nacional, Heredia, Costa Rica
| | - Karla Solano
- Central American Institute for Studies on Toxic Substances, Universidad Nacional, Heredia, Costa Rica
| | - Carola Scholz
- School of Biological Sciences, Universidad Nacional, Heredia, Costa Rica
| | | | - Freylan Mena
- Central American Institute for Studies on Toxic Substances, Universidad Nacional, Heredia, Costa Rica
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Loerracher AK, Braunbeck T. Cytochrome P450-dependent biotransformation capacities in embryonic, juvenile and adult stages of zebrafish (Danio rerio)-a state-of-the-art review. Arch Toxicol 2021; 95:2299-2334. [PMID: 34148099 PMCID: PMC8241672 DOI: 10.1007/s00204-021-03071-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/04/2021] [Indexed: 01/08/2023]
Abstract
Given the strong trend to implement zebrafish (Danio rerio) embryos as translational model not only in ecotoxicological, but also toxicological testing strategies, there is an increasing need for a better understanding of their capacity for xenobiotic biotransformation. With respect to the extrapolation of toxicological data from zebrafish embryos to other life stages or even other organisms, qualitative and quantitative differences in biotransformation pathways, above all in cytochrome P450-dependent (CYP) phase I biotransformation, may lead to over- or underestimation of the hazard and risk certain xenobiotic compounds may pose to later developmental stages or other species. This review provides a comprehensive state-of-the-art overview of the scientific knowledge on the development of the CYP1-4 families and corresponding phase I biotransformation and bioactivation capacities in zebrafish. A total of 68 publications dealing with spatiotemporal CYP mRNA expression patterns, activities towards mammalian CYP-probe substrates, bioactivation and detoxification activities, as well as metabolite profiling were analyzed and included in this review. The main results allow for the following conclusions: (1) Extensive work has been done to document mRNA expression of CYP isoforms from earliest embryonic stages of zebrafish, but juvenile and adult zebrafish have been largely neglected so far. (2) There is insufficient understanding of how sex- and developmental stage-related differences in expression levels of certain CYP isoforms may impact biotransformation and bioactivation capacities in the respective sexes and in different developmental stages of zebrafish. (3) Albeit qualitatively often identical, many studies revealed quantitative differences in metabolic activities of zebrafish embryos and later developmental stages. However, the actual relevance of age-related differences on the outcome of toxicological studies still needs to be clarified. (4) With respect to current remaining gaps, there is still an urgent need for further studies systematically assessing metabolic profiles and capacities of CYP isoforms in zebrafish. Given the increasing importance of Adverse Outcome Pathway (AOP) concepts, an improved understanding of CYP capacities appears essential for the interpretation and outcome of (eco)toxicological studies.
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Affiliation(s)
- Ann-Kathrin Loerracher
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, 69120, Heidelberg, Germany.
| | - Thomas Braunbeck
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, 69120, Heidelberg, Germany.
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21
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Uçar A, Özgeriş FB, Parlak V, Yeltekin AÇ, Kocaman EM, Alak G, Atamanalp M. Neurotoxic responses of rainbow trout ( Oncorhynchus mykiss) exposed to fipronil: multi-biomarker approach to illuminate the mechanism in brain. Drug Chem Toxicol 2021; 45:2140-2145. [PMID: 33870811 DOI: 10.1080/01480545.2021.1908751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Insecticides have potential to non-target organisms, disrupting the healthy functioning of the aquatic environment as they are the ultimate receptor of the aquatic ecosystem. Insecticides, which are widely used in agriculture, have high neurotoxicity on aquatic organisms. In this study, the acute alterations [catalase (CAT), arylesterase (ARE), malondialdehyde (MDA), myeleperoxidase (MPO), paraoxonase (PON), glutathione peroxidase (GPX), superoxide dismutase (SOD), 8-hydroxy-2-deoxyguanosine (8-OHdG) level, caspase-3 activity, and Acetylcholinesterase (AChE) enzyme activity] caused by the different concentrations of Fipronil (FP) insecticide (0.05, 0.1, and 0.2 mg/L) on rainbow trout (Oncorhynchus mykiss) brain tissue were investigated. It has been determined that superoxide dismutase -catalase - glutathione peroxidase - paraoxonase and arylesterase enzyme activities were inhibited but MDA and MPO induced depending on the concentration in brain tissue. When compared with the control group, the changes between the pesticide exposed groups were found statistically significant (p < 0.05). In brain tissue, while AChE enzyme activity was decreased depending on concentration, caspase-3 activity increased with 8-OHdG level. As a result, it has been determined that FP is a dangerous environmental pollutant for aquatic organisms, even at low concentrations, inducing oxidative stress, damaging the brain tissue of fish and stimulating apoptosis.
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Affiliation(s)
- Arzu Uçar
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | - Fatma Betül Özgeriş
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ataturk University, Erzurum, Turkey
| | - Veysel Parlak
- Department of Basic Sciences, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | | | - Esat Mahmut Kocaman
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | - Gonca Alak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
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22
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Bownik A, Szabelak A. Short-term effects of pesticide fipronil on behavioral and physiological endpoints of Daphnia magna. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-13091-6. [PMID: 33638071 PMCID: PMC8241664 DOI: 10.1007/s11356-021-13091-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/17/2021] [Indexed: 05/13/2023]
Abstract
Fipronil (FIP) is an organic pesticide with many practical uses. Although some results indicated toxic effects in some terrestrial and aquatic animal species, little is known on its influence on behavioral and physiological endpoints of cladocerans. The aim of our study was to determine the short-term effects of FIP at concentrations of 0.1 μg/L, 1 μg/L, 10 μg/L, and 100 μg/L on Daphnia magna sublethal indices: behavioral (swimming speed, distance traveled) and physiological endpoints (heart rate, post-abdominal claw activity and thoracic limb movements). The results showed that FIP induced reduction of swimming speed and distance traveled in a concentration- and time-dependent manner at all the concentrations used. The lowest concentration of the insecticide temporarily stimulated post-abdominal claw activity after 24 h and thoracic limb activity after 48 h; however, the highest concentrations reduced all the studied physiological endpoints. IC50 values showed that thoracic limb activity, swimming speed, and distance traveled were most sensitive to FIP after 24-h exposure. The most sensitive parameter after 48 h and 72 h was swimming speed and post-abdominal claw activity, respectively. The study indicated that (i) behavioral and physiological endpoints of Daphnia magna are reliable and valuable sublethal indicators of toxic alterations induced by FIP; however, they respond with different sensitivity at various times of exposure, (ii) FIP may alter cladoceran behavior and physiological processes at concentrations detected in the aquatic environment; therefore, it should be considered as an ecotoxicological hazard to freshwater cladocerans.
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Affiliation(s)
- Adam Bownik
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland.
| | - Aleksandra Szabelak
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland
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23
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Wang Y, Lv L, Xu C, Wang D, Yang G, Wang X, Weng H, Wang Q. Mixture toxicity of thiophanate-methyl and fenvalerate to embryonic zebrafish (Danio rerio) and its underlying mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143754. [PMID: 33302067 DOI: 10.1016/j.scitotenv.2020.143754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/08/2020] [Accepted: 11/08/2020] [Indexed: 06/12/2023]
Abstract
Though pesticide mixtures can reflect the real-life situation in the water ecosystem, the quantification of their toxicity is still not fully understood. Combined effects of thiophanate-methyl (THM) and fenvalerate (FEN) on embryonic zebrafish (Danio rerio) and underlying mechanism were conducted in this study. Results showed that the 96-h LC50 values of THM to D. rerio at different growth periods ranged from 12.1 to 26.1 mg L-1, which were lower in comparison with those of FVR ranging from 0.025 to 2.8 mg L-1. Mixture of THM and FVR exhibited a synergetic response to zebrafish embryos. Activities of Cu/Zn-SOD, POD, caspase 3 and caspase 9 were significantly different in most of single and mixture administrations compared with the control group. In addition, five genes (P53, Cu/Zn-sod, crh, ERα and IL-8) associated with oxidative stress, cellular apoptosis, immune system and endocrine system showed greater variations of expressions when administrated to pesticide mixtures compared with single chemicals. Our experimental results exhibited that mixtures of thiophanate-methyl and fenvalerate produced higher toxicity towards aqueous vertebrates than when determined singly. Collectively, upcoming environmental risk assessments established according to single administrations might not be enough to protect the water ecosystem.
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Affiliation(s)
- Yanhua Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Lu Lv
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Chao Xu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Dou Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Guiling Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Hongbiao Weng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Qiang Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.
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24
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Sanahuja I, Dallarés S, Ibarz A, Solé M. Multi-organ characterisation of B-esterases in the European sea bass (Dicentrarchus labrax): Effects of the insecticide fipronil at two temperatures. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 228:105617. [PMID: 32942115 DOI: 10.1016/j.aquatox.2020.105617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/18/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
In fish, the study of cholinesterases (ChEs) and carboxylesterases (CEs), apart from their involvement in neural activity and xenobiotic metabolism, respectively, requires to be further explored. The European sea bass (Dicentrarchus labrax) was the fish model used to characterise B-esterases in several matrices and organs, as well as to assess the impacts of the insecticide fipronil at two temperatures: the natural temperature at the time of sampling (13 °C) and at 16 °C (based on climate change-related predictions for the Mediterranean region). Fipronil exerts harmful effects in non-target species; however, some countries are reluctant to implement regulations without additional evidence on their toxicity. A comprehensive study was performed in fish pre-acclimated to the two targeted temperatures for 15 days. B-esterases were evaluated in multiple samples after 7 and 14 day exposures to fipronil in feed (dose of 10 mg/kg) and after a 7-day depurative period. Based on hydrolysis rates, results showed that CEs were measurable in all matrices while ChEs were more abundant in muscle and, particularly, acetylcholinesterase (AChE) in the brain. A + 3 °C increase in temperature had little influence on B-esterase activity; however, fipronil caused a significant increase in brain AChE (1.5-fold) and CE (3-fold) activities. Other matrices and organs also experienced alterations in their B-esterase activities that could compromise their physiological functions.
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Affiliation(s)
- Ignasi Sanahuja
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain
| | - Sara Dallarés
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
| | - Antoni Ibarz
- Department of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain
| | - Montserrat Solé
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain.
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25
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Eadie A, Vasquez IC, Liang X, Wang X, Souders CL, El Chehouri J, Hoskote R, Feswick A, Cowie AM, Loughery JR, Martyniuk CJ. Residual molecular and behavioral effects of the phenylpyrazole pesticide fipronil in larval zebrafish (Danio rerio) following a pulse embryonic exposure. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 36:100743. [PMID: 32977147 DOI: 10.1016/j.cbd.2020.100743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 09/04/2020] [Accepted: 09/05/2020] [Indexed: 12/30/2022]
Abstract
Pesticides are typically applied to crops as acute applications, and residual effects of such intermittent exposures are not often characterized in developing fish. Fipronil is an agricultural pesticide that inhibits γ-amino-butyric acid (GABA) gated chloride channels. In this study, zebrafish (Danio rerio) embryos were exposed for 48 h (starting at ~3 h post fertilization, hpf) to various concentrations of fipronil (0.02 μg/L up to 4000 μg/L). Following this acute exposure, a subset of fish was transferred to clean water for a 7-day depuration phase. We hypothesized that a pulse exposure to fipronil during critical periods of central nervous system development would adversely affect fish later in life. After a 48 hour pulse exposure, survival was reduced in embryos exposed to 2 μg fipronil/L or greater. However, there was no further mortality during the depuration phase, nor were there changes in body length nor notochord length in larvae 9 dpf (days post-fertilization) compared to controls. Additional experiments were carried out at higher concentrations over 96 h (up to 4 dpf) to also elucidate developmental effects and teratogenicity of fipronil (43.7 μg/L up to 4370 μg/L). Fipronil at these higher concentrations significantly impacted the development of zebrafish, and the following morphometric and teratogenic effects were observed in 4 dpf fish; reduced body length, yolk sac and pericardial edema, reduced midbrain length, reduced optic and otic diameter, and truncation of the lower jaw. In depurated fish, we hypothesized that there would exist residual effects of exposure at the molecular level. Transcriptome profiling was therefore conducted on 9 dpf depurated larvae exposed initially for 48 h to one dose of either 0.2 μg/L, 200 μg/L or 2000 μg/L fipronil. The expression of gene networks associated with glycogen and omega-3-fatty acid metabolism were decreased in larvae exposed to each of the three concentrations of fipronil, suggesting metabolic disruption. Moreover, transcriptomics revealed that fipronil suppressed gene networks related to light-dark adaptation, photoperiod sensing, and circadian rhythm. Based on these data, we tested fish for altered behavioral responses in a Light-Dark preference test. Larvae exposed to >200 μg fipronil/L as embryos showed fewer number of visits (20-30% less) to the dark zone compared to controls. Larvae also spent a lower amount of time in the dark zone compared to controls, suggesting that fipronil strengthened dark avoidance behavior which is indicative of anxiety. This study demonstrates that a short pulse exposure to fipronil can affect transcriptome networks for metabolism, circadian rhythm, and response to light in fish after depuration, and these molecular responses are hypothesized to be related to aberrant behavioral effects observed in the light-dark preference test.
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Affiliation(s)
- Ashley Eadie
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - Isabel Cristina Vasquez
- Departamento de Ciencias Fisiológicas, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá D.C., Colombia
| | - Xuefang Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Xiaohong Wang
- Department of Physiological Sciences, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Christopher L Souders
- Department of Physiological Sciences, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Jana El Chehouri
- Department of Physiological Sciences, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Rohit Hoskote
- Department of Physiological Sciences, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - April Feswick
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - Andrew M Cowie
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - Jennifer R Loughery
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - Christopher J Martyniuk
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada; Department of Physiological Sciences, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Canadian Rivers Institute, Canada; Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA.
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26
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Determination of Fipronil toxicity by different biomarkers in gill and liver tissue of rainbow trout (Oncorhynchus mykiss). In Vitro Cell Dev Biol Anim 2020; 56:543-549. [DOI: 10.1007/s11626-020-00480-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/01/2020] [Indexed: 11/27/2022]
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27
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Jia ZQ, Zhang YC, Huang QT, Jones AK, Han ZJ, Zhao CQ. Acute toxicity, bioconcentration, elimination, action mode and detoxification metabolism of broflanilide in zebrafish, Danio rerio. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122521. [PMID: 32279005 DOI: 10.1016/j.jhazmat.2020.122521] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/25/2020] [Accepted: 03/10/2020] [Indexed: 06/11/2023]
Abstract
Broflanilide, a novel meta-diamide insecticide, shows high insecticidal activity against agricultural pests and is scheduled to be launched onto the market in 2020. However, little information about its potential toxicological effects on fish has been reported. In this study, broflanilide showed low toxicity to the zebrafish, Danio rerio, with LC50 > 10 mg L-1 at 96 h and also did not inhibit GABA-induced currents of the heteromeric Drα1β2Sγ2 GABA receptor. Broflanilide showed medium bioconcentration level with a bioconcentration factor at steady state (BCFss) of 10.02 and 69.40 in D. rerio at 2.00 mg L-1 and 0.20 mg L-1, respectively. In the elimination process, the concentration of broflanilide rapidly decreased within two days and slowly dropped below the limit of quantification after ten days. In the 2.00 mg L-1 broflanilide treatment, CYP450 activity was significantly increased up to 3.11-fold during eight days. Glutathione-S- transferase (GST) activity significantly increased by 91.44 % within four days. In conclusion, the acute toxicity of broflanilide was low, but it might induce chronic toxicity, affecting metabolism. To our knowledge, this is the first report of the toxicological effects of broflanilide on an aquatic organism, which has the potential to guide the use of broflanilide in the field.
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Affiliation(s)
- Zhong-Qiang Jia
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Yi-Chi Zhang
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Qiu-Tang Huang
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Andrew K Jones
- Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, OX3 0BP, UK.
| | - Zhao-Jun Han
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Chun-Qing Zhao
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, PR China.
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28
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Li H, Zhang R, Sun F, Zhang Y. Evaluation of toxicological responses and promising biomarkers of topmouth gudgeon (Pseudorasbora parva) exposed to fipronil at environmentally relevant levels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24081-24089. [PMID: 32304060 DOI: 10.1007/s11356-020-08555-0] [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: 01/03/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Fipronil is an insecticide commonly used in agriculture. We report here on the sublethal and sub-chronic effects of fipronil on non-target topmouth gudgeon (Pseudorasbora parva) at environmentally relevant levels. The results showed that fipronil did not cause significant changes in brain acetylcholinesterase activities, glutathione S-transferase (GST) activities in the intestine, and GST, glutamic pyruvic transaminase (GPT), and glutamic oxaloacetic transaminase (GOT) activities in the liver tissues at environmentally relevant levels for 96-h exposure. In the further test for a 12-day exposure, dose-dependent responses of the serum GPT and GOT activities were observed in all treated groups with sublethal concentrations of fipronil. Furthermore, fipronil could reduce the liver mitochondrial membrane fluidity of P. parva, especially with high concentration of fipronil at high temperature. The results suggest that serum GPT and GOT in P. parva might be useful biomarkers for effects of fipronil exposure at environmentally relevant level, and reducing fluidity of liver mitochondrial membrane may be one toxic mechanism of fipronil.
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Affiliation(s)
- Huixian Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Ruiqing Zhang
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Fuhong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yahui Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
- Environmental Analysis and Testing Laboratory of CRAES, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
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Wang Y, Xu C, Wang D, Weng H, Yang G, Guo D, Yu R, Wang X, Wang Q. Combined toxic effects of fludioxonil and triadimefon on embryonic development of zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114105. [PMID: 32041085 DOI: 10.1016/j.envpol.2020.114105] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/02/2020] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Pesticides scarcely exist as individual compounds in the water ecosystem, but rather as mixtures of multiple chemicals at relatively low concentrations. In this study, we aimed to explore the mixture toxic effects of fludioxonil (FLU) and triadimefon (TRI) on zebrafish (Danio rerio) by employing different toxicological endpoints. Results revealed that the 96-h LC50 values of FLU to D. rerio at multiple developmental stages ranged from 0.055 (0.039-0.086) to 0.61 (0.33-0.83) mg L-1, which were less than those of TRI ranging from 3.08 (1.84-5.96) to 9.75 (5.99-14.78) mg L-1. Mixtures of FLU and TRI exerted synergistic effects on embryonic zebrafish. Activities of total superoxide dismutase (T-SOD) and catalase (CAT) were markedly altered in most of the individual and pesticide mixture treatments compared with the control. The expressions of 16 genes involved in oxidative stress, cellular apoptosis, immune system and endocrine system displayed that embryonic zebrafish were affected by the individual pesticides and their mixtures, and greater variations of four genes (ERɑ, Tnf, IL and bax) were found when exposed to pesticide mixtures compared with their individual compounds. Therefore, more studies on mixture toxicities among different pesticides should be taken as a priority when evaluating their ecological risk.
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Affiliation(s)
- Yanhua Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Chao Xu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Dou Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Hongbiao Weng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Guiling Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Dongmei Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Ruixian Yu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.
| | - Qiang Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
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Liu W, Nie H, Liang D, Bai Y, Liu H. Phospholipid imaging of zebrafish exposed to fipronil using atmospheric pressure matrix-assisted laser desorption ionization mass spectrometry. Talanta 2020; 209:120357. [DOI: 10.1016/j.talanta.2019.120357] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/05/2019] [Accepted: 09/14/2019] [Indexed: 10/26/2022]
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Dallarés S, Dourado P, Sanahuja I, Solovyev M, Gisbert E, Montemurro N, Torreblanca A, Blázquez M, Solé M. Multibiomarker approach to fipronil exposure in the fish Dicentrarchus labrax under two temperature regimes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 219:105378. [PMID: 31841729 DOI: 10.1016/j.aquatox.2019.105378] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/26/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Fipronil is a phenylpyrazole insecticide widely used to control pests in agriculture even though evidence of harmful side effects in non-target species has been reported. A comprehensive study on the effects of dietary administration of Regent®800WG (80 % fipronil) in European sea bass juveniles was carried out under two temperature regimes: a) natural conditions, and b) 3 °C above the natural temperature (an increase predicted for the NW Mediterranean by the end of this century). Fipronil was added to the fish food (10 mg fipronil /Kg feed) and the effects were studied at several time points including right before administration, 7 and 14 days after daily fipronil feed and one-week after the insecticide withdrawal from the diet (depuration period). A wide array of physiological and metabolic biomarkers including feeding rate, general condition indices, plasma and epidermal mucus metabolites, immune response, osmoregulation, detoxification and oxidative-stress markers and digestive enzymes were assessed. General linear models and principal component analyses indicated that regardless of water temperature, fipronil resulted in a significant alteration of several of the above listed biomarkers. Among them, glucose and lactate levels increased in plasma and decreased in epidermal mucus as indicators of a stress response. Similarly, a depletion in catalase activity and higher lipid peroxidation in liver of fipronil-exposed fish were also indicative of an oxidative-stress condition. Fipronil induced a time dependent inhibition of Cytochrome P450-related activities and an increase of phase II glutathione-S-transferase. Moreover, fipronil administration was able to reduce the hypo-osmoregulatory capability as shown by the increase of plasmatic osmolality and altered several digestive enzymes including trypsin, lipase, alpha amylase and maltase. Finally, analyses in bile and muscle confirmed the rapid clearance of fipronil but the persistence of the metabolite fipronil-sulfone in bile even after the 7-day depuration period. Altogether, the results reveal a notable impact of this compound on the physiological condition of the European sea bass. The results should be considered in future environmental risk assessment studies since fipronil could be hazardous to fish species, particularly those inhabiting estuarine ecosystems exposed to the discharge of agriculture runoffs where this pesticide is mainly used.
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Affiliation(s)
- Sara Dallarés
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003, Barcelona, Spain
| | - Priscila Dourado
- Institute of Biosciences, Language and Exact Sciences of São José do Rio Preto, Paulist State University "Júlio de Mesquita Filho", Rua Cristóvão Colombo - de 1897/1898 ao fim, Jardim Nazareth, 15054000, São José do Rio Preto, SP, Brazil
| | - Ignasi Sanahuja
- Department of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona, Avda. Diagonal 643, 08028, Barcelona, Spain
| | - Mikhail Solovyev
- Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences, Frunze st., 11, 630091, Novosibirsk, Russia; Tomsk State University, 36 Lenin Ave, 634050, Tomsk, Russia
| | - Enric Gisbert
- Institute of Research and Technology Food and Agriculture (IRTA), Aquaculture Program, Ctra. Poble Nou, km 5.5, 43540, Sant Carles de la Ràpita, Tarragona, Spain
| | - Nicola Montemurro
- Water and Soil Quality Research Group (IDAEA-CSIC), Department of Environmental Chemistry, C/Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Amparo Torreblanca
- Department of Functional Biology and Physical Anthropology, University of València, C/Dr. Moliner 50, Burjassot, 46100, Valencia, Spain
| | - Mercedes Blázquez
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003, Barcelona, Spain
| | - Montserrat Solé
- Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta 37-49, 08003, Barcelona, Spain.
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Su C, Xia X. Sublethal effects of methylthio-diafenthiuron on the life table parameters and enzymatic properties of the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 162:43-51. [PMID: 31836053 DOI: 10.1016/j.pestbp.2019.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/30/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Abstract
The diamondback moth (DBM), Plutella xylostella (L.), is a major pest affecting cruciferous vegetables, and seriously affects the quality and yield of these vegetables. Diafenthiuron is a traditional thiourea-based insecticide, but it is rarely used to control pests on cruciferous vegetables due to its phytotoxicity on these vegetables under high temperature and light conditions. Thus, there is an ongoing need for more effective pesticides that can be used on cruciferous vegetables, possibly including new formulations of diafenthiuron. A new thiourea insecticide, methylthio-diafenthiuron, is intended to optimize the structure of diafenthiuron not only to preserve its insecticidal bioactivity but also to overcome its phytotoxicity to cruciferous vegetables, aiming to control insect pests on cruciferous vegetables. In this study, we compared the toxicity of methylthio-diafenthiuron to some frequently used insecticides on the third-instar larvae of DBM. The parental pupal duration was significantly longer under the treatment than in the control, but the pupal weight, fecundity, and hatching rate significantly decreased. By studying the changes in three detoxifying enzymes within 72 h after treatment with a sublethal concentration, the activity of CarE and ODM in the treatment group significantly increased at first and then decreased. In addition, methylthio-diafenthiuron clearly inhibited three kinds of ATPases in the DBM and significantly reduced the eclosion rate of the pupae. This research provides valuable information for the assessment and rational application of methylthio-diafenthiuron for the control of pests on cruciferous vegetables.
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Affiliation(s)
- Chenyu Su
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaoming Xia
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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Qiu W, Liu S, Yang F, Dong P, Yang M, Wong M, Zheng C. Metabolism disruption analysis of zebrafish larvae in response to BPA and BPA analogs based on RNA-Seq technique. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:181-188. [PMID: 30826544 DOI: 10.1016/j.ecoenv.2019.01.126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/29/2018] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA) is an environmentally ubiquitous chemical widely used in industry and is known to have adverse effects on organisms. Given the negative effect, BPA-free products have been developed with BPA analogs such as bisphenol F (BPF) and bisphenol S (BPS); however, these analogs are proving to exhibit toxicity similar to that of BPA. In the present study, we aimed to identify and compare the underlying mechanisms of toxicity of BPA, BPF, and BPS at the transcriptional level by conducting global transcriptome sequencing (RNA-Seq) on zebrafish embryos. RNA-seq results showed that the expression levels of 285, 191, and 246 genes were significantly changed in zebrafish larvae after embryos were treated for 120 h with 100 μg/L BPA, BPF, and BPS, respectively. Among the genes exhibiting altered expression, a substantial number were common to two or three exposure groups, suggesting consistent toxicity between the three bisphenols. We further validated the expression levels of 19 differentially expressed genes by qRT-PCR, using sequencing RNA and the RNA samples after treatment by 0.01, 1, and 100 μg/L bisphenols under identical condition, the results were similar to RNA-Seq. Moreover, functional enrichment analysis indicated that metabolism was the main pathway which disrupted in zebrafish larvae by bisphenols treatment. Protein-protein interaction network analysis indicated that six DEGs (ces, cda, dpyd, upp1, upp2, and cmpk2) interact together in the drug metabolism of zebrafish. In summary, our study revealed changes in the transcription of genes upon bisphenols treatment in zebrafish larvae for the first time, indicating that BPF and BPS may cause adverse effects similar to BPA via their involvement in various biological processes, providing a solid foundation for further research on the toxicology of BPA analogs.
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Affiliation(s)
- Wenhui Qiu
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Shuai Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Feng Yang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Peiyao Dong
- Institute of Water Sciences, College of Engineering, Peking University, Peking 100871, China
| | - Ming Yang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Minghung Wong
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chunmiao Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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Xiong T, Qiu XH, Ling SQ, Liu JL, Zeng XN. Interaction of fipronil and the red imported fire ant (Solenopsis invicta): Toxicity differences and detoxification responses. JOURNAL OF INSECT PHYSIOLOGY 2019; 115:20-26. [PMID: 30858095 DOI: 10.1016/j.jinsphys.2019.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Fipronil (FIP), a phenyl-pryazole pesticide, has been widely used for crop protection due to its broad insecticidal spectrum, especially for urban insect management. FIP also serves as the active ingredient of major baits used for the control of the red imported fire ant (RIFA; Solenopsis invicta). Although a vast majority of laboratory-based research has been performed using worker ants as a model, limited information is available regarding the toxicity of FIP in individuals from different castes and developmental stages. In this study, we investigated the interaction between FIP and this important pest, including FIP toxicity and transformation, RIFA enzyme activity and responses to FIP exposure. The topical and feeding toxicity of FIP in five adult castes, worker larvae and worker pupae were determined and compared. Topical toxicity assays showed that there were significant differences in FIP toxicity among adult workers (LD50 = 1.17 μg/g), larvae (LD50 = 1891.00 μg/g) and pupae (LD50 = 23981.00 μg/g). Although, no obvious differences in topical toxicity were observed among the adult castes, the differences in feeding toxicity were significant. For example, the LC50 value for the workers was 3.96-fold lower than that for soldiers at 24 h, and the LC50 value was slightly lower for male alates than for female alates at day 3 and day 4, respectively. The activities of detoxification enzymes in individuals of different castes and developmental stages were investigated with or without FIP treatment. Cytochrome P450 activity was approximately 24-fold higher in larvae than in workers, and adult workers exhibited 4-fold higher FIP-induced cytochrome P450 activity than individuals from other adult castes. In addition, in vitro experiments demonstrated that FIP was transformed into FIP-sulfone, and this process may be primarily mediated by RIFA P450(s).
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Affiliation(s)
- Ting Xiong
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xing-Hui Qiu
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Si-Quan Ling
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jia-Li Liu
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xin-Nian Zeng
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
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Qu H, Ma R, Wang F, Gao J, Wang P, Zhou Z, Liu D. The effect of biochar on the mitigation of the chiral insecticide fipronil and its metabolites burden on loach (Misgurnus.anguillicaudatus). JOURNAL OF HAZARDOUS MATERIALS 2018; 360:214-222. [PMID: 30099364 DOI: 10.1016/j.jhazmat.2018.07.078] [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: 02/27/2018] [Revised: 07/19/2018] [Accepted: 07/21/2018] [Indexed: 06/08/2023]
Abstract
In this work, the enantioselective toxicity, enrichment, and distribution of fipronil and its main metabolites (fipronil sulfone, fipronil sulfide, and fipronil desulfinyl) in loach (Misgurnus anguillicaudatus) were studied. The influence of maize-straw derived biochar on acute toxicity and bioaccumulation of contaminants were also investigated. The three main metabolites were more toxic to loach than parent fipronil. Meanwhile, loach exhibited more sensitive to S-enantiomer. The alleviated toxic response of loach was observed in the presence of biochar during 72-h acute toxicity test. Fipronil was readily metabolized to sulfone and sulfide with enantioselectivity in loach liver, and it was also found R-fipronil could transform into S-fipronil. The metabolites profile indicated that oxidation processes was the most predominant pathway in loach. Bioaccumulation factors showed the metabolites could be enriched in loach and they were relatively persistent. The bioaccessibility of fipronil and its metabolite decreased significantly when biochar was applied to the ecosystem. The present study provided basic data and outlines of enantioselective toxicity, biotransformation and metabolism of chiral pesticide fipronil and its main derivatives along with biochar in loach-water ecosystem, and further provide an alternative approach for field remediation to mitigate environmental adverse effects of fipronil.
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Affiliation(s)
- Han Qu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Ruixue Ma
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, 510655, China
| | - Fang Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Jing Gao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Peng Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Donghui Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
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Wang Y, Dai D, Yu Y, Yang G, Shen W, Wang Q, Weng H, Zhao X. Evaluation of joint effects of cyprodinil and kresoxim-methyl on zebrafish, Danio rerio. JOURNAL OF HAZARDOUS MATERIALS 2018; 352:80-91. [PMID: 29574263 DOI: 10.1016/j.jhazmat.2018.03.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 03/12/2018] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
Aquatic organisms are usually exposed to a mixture of pesticides instead of individual chemicals. However, risk assessment of pesticides is traditionally based on toxicity data of individual compounds. In this study, we aimed to examine the joint toxicity of two fungicides cyprodinil (CYP) and kresoxim-methyl (KRM) to zebrafish (Danio rerio) using a systematic experimental approach. Results from 96-h semi-static test indicated that the LC50 values of KRM to D. rerio at multiple life stages (embryonic, larval, juvenile and adult stages) ranged from 0.034 (0.015-0.073) to 0.61 (0.39-0.83) mg a.i. L-1, which were higher than those of CYP ranging from 1.05 (0.88-1.52) to 4.42 (3.24-6.02) mg a.i. L-1. Pesticide mixtures of CYP and KRM exhibited synergistic effect on embryonic zebrafish. The activities of carboxylesterase (CarE) and cytochrome P450 (Cyp450) were significantly altered in most of the individual and combined exposures compared with the control group. The expressions of seven genes (Mnsod, cyp17, crhr 2, crh, gnrhr 4, gnrhr 1 and hmgrb) were significantly altered upon exposure to combined pesticides compared with their individual pesticides. Collectively, these findings suggested joint effects should be considered in the risk assessment of pesticides and development of water quality criteria for the protection of aquatic environment.
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Affiliation(s)
- Yanhua Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Dejiang Dai
- Institute for the Control of Agrochemicals of Zhejiang Province, Hangzhou, 310020, China
| | - Yijun Yu
- Administration for Farmland Quality and Fertilizer of Zhejiang Province, Hangzhou, 310020, China
| | - Guiling Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Weifeng Shen
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Qiang Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Hongbiao Weng
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China.
| | - Xueping Zhao
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China.
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Qian K, Jiang X, Sun L, Zhou G, Ge H, Fang X, Xiao L, Wu Q. Effect of Montmorillonite on 4-Nonylphenol Enrichment in Zebrafish. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15061217. [PMID: 29890765 PMCID: PMC6025063 DOI: 10.3390/ijerph15061217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/01/2018] [Accepted: 06/06/2018] [Indexed: 01/15/2023]
Abstract
The aim of this study was to investigate the effect of montmorillonite on nonylphenol (4-nonylphenol, 4-NP) enrichment in a zebrafish model. The AB strain zebrafish were used as the animal subjects, and three concentration gradients were set for both nonylphenol and montmorillonite, according to their actual concentrations in aquaculture water in Huzhou City. A group treated with nonylphenol alone was also set, adding up to 12 experimental groups. Concentrations of nonylphenol enriched in the liver, muscle and gills of zebrafish were detected by solid phase microextraction–high performance liquid chromatography at Days 7, 15 and 30, respectively. Additionally, the relative enzymatic activity of superoxide dismutase (SOD) and the glutathione S-transferase (GST) were also detected, and the data were statistically analyzed. The results showed that the concentrations of nonylphenol in zebrafish peaked at Day 7 and gradually decreased afterwards for all the experimental groups. The montmorillonite reduces short-term accumulation of nonylphenol in gills, and the high concentration of nonylphenol facilitates its enrichment in liver and muscle, while the low concentration of nonylphenol does not. Meanwhile, the low concentration of nonylphenol in liver exerts an influence on the inductive effect of SOD and GST, while the high concentration of nonylphenol shows the inhibiting effect of SOD and GST.
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Affiliation(s)
- Kun Qian
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Xiaofeng Jiang
- College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Laiyu Sun
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Guoqing Zhou
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Haixia Ge
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Xinqiang Fang
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Li Xiao
- School of Life Science, Huzhou University, Huzhou 313000, China.
| | - Qiong Wu
- School of Life Science, Huzhou University, Huzhou 313000, China.
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Han W, Wang Y, Gao J, Wang S, Zhao S, Liu J, Zhong Y, Zhao D. Acute toxicity and sublethal effects of myclobutanil on respiration, flight and detoxification enzymes in Apis cerana cerana. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 147:133-138. [PMID: 29933983 DOI: 10.1016/j.pestbp.2017.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 10/18/2017] [Accepted: 11/06/2017] [Indexed: 06/08/2023]
Abstract
Myclobutanil is currently used on the flowering plants. Little is known about how Apis cerana cerana respond to myclobutanil exposure. Hence, the acute toxicity of myclobutanil and its sublethal effects on respiration, flight and detoxification enzymes [7-ethoxycoumarin O-deethylase (ECOD) and glutathione S-transferases (GSTs)] in A. cerana cerana were investigated. The results indicated that formulation grade myclobutanil showed moderate toxicity to A. cerana cerana either contact (LD50=4.697μg/bee) or oral (LD50=2.154μg/bee) exposure. Sublethal dose of myclobutanil significantly reduced the respiration rate of workers at 24h and 48h regardless of the exposure method. However, myclobutanil didn't significantly affect the take-off flight. After nurse bees exposure to the dose (LD5) of formulation-grade myclobutanil, ECOD activity was significantly induced when compared with control, but GST activity didn't change. In the forager bees, no enzyme markers response was obtained in this test. From the present study we can infer that myclobutanil disturb respiration and P450-mediated detoxification of the individual bees of A. cerana cerana. Thus, myclobutanil may has risk for A. cerana cerana, it should be cautiously used.
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Affiliation(s)
- Wensu Han
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Yajun Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Environment and Plant Protection College, Hainan University, Haikou 570228, China
| | - Jinglin Gao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Shijie Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Shan Zhao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Junfeng Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Yihai Zhong
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
| | - Dongxiang Zhao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Bee Industry Technology Research Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China.
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Wu S, Li X, Liu X, Yang G, An X, Wang Q, Wang Y. Joint toxic effects of triazophos and imidacloprid on zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:470-481. [PMID: 29316522 DOI: 10.1016/j.envpol.2017.12.120] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/30/2017] [Accepted: 12/30/2017] [Indexed: 06/07/2023]
Abstract
Pesticide contamination is more often found as a mixture of different pesticides in water bodies rather than individual compounds. However, regulatory risk evaluation is mostly based on the effects of individual pesticides. In the present study, we aimed to investigate the individual and joint toxicities of triazophos (TRI) and imidacloprid (IMI) to the zebrafish (Danio rerio) using acute indices and various sublethal endpoints. Results from 96-h semi-static test indicated that the LC50 values of TRI to D. rerio at multiple life stages (embryonic, larval, juvenile and adult stages) ranged from 0.49 (0.36-0.71) to 4.99 (2.06-6.81) mg a.i. L-1, which were higher than those of IMI ranging from 26.39 (19.04-38.01) to 128.9 (68.47-173.6) mg a.i. L-1. Pesticide mixtures of TRI and IMI displayed synergistic response to zebrafish embryos. Activities of carboxylesterase (CarE) and catalase (CAT) were significantly changed in most of the individual and joint exposures of pesticides compared with the control group. The expressions of 26 genes related to oxidative stress, cellular apoptosis, immune system, hypothalamic-pituitary-thyroid and hypothalamic-pituitary-gonadal axis at the mRNA level revealed that zebrafish embryos were affected by the individual or joint pesticides, and greater changes in the expressions of six genes (Mn-sod, CXCL-CIC, Dio1, Dio2, tsh and vtg1) were observed when exposed to joint pesticides compared with their individual pesticides. Taken together, the synergistic effects indicated that it was highly important to incorporate joint toxicity studies, especially at low concentrations, when assessing the risk of pesticides.
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Affiliation(s)
- Shenggan Wu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xinfang Li
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xinju Liu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Guiling Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Xuehua An
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Qiang Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.
| | - Yanhua Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.
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40
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Abdel-Daim MM, Abdeen A. Protective effects of rosuvastatin and vitamin E against fipronil-mediated oxidative damage and apoptosis in rat liver and kidney. Food Chem Toxicol 2018; 114:69-77. [DOI: 10.1016/j.fct.2018.01.055] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 10/18/2022]
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41
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Jia ZQ, Liu D, Sheng CW, Casida JE, Wang C, Song PP, Chen YM, Han ZJ, Zhao CQ. Acute toxicity, bioconcentration, elimination and antioxidant effects of fluralaner in zebrafish, Danio rerio. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 232:183-190. [PMID: 28923341 DOI: 10.1016/j.envpol.2017.09.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/09/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
Fluralaner is a novel isoxazoline insecticide which shows high insecticidal activity against parasitic, sanitary and agricultural pests, but there is little information about the effect of fluralaner on non-target organisms. This study reports the acute toxicity, bioconcentration, elimination and antioxidant response of fluralaner in zebrafish. All LC50 values of fluralaner to zebrafish were higher than 10 mg L-1 at 24, 48, 72 and 96 h. To study the bioconcentration and elimination, the zebrafish were exposed to sub-lethal concentrations of fluralaner (2.00 and 0.20 mg L-1) for 15 d and then held 6 d in clean water. The results showed medium BCF of fluralaner with values of 12.06 (48 h) and 21.34 (144 h) after exposure to 2.00 and 0.20 mg L-1 fluralaner, respectively. In the elimination process, a concentration of only 0.113 mg kg-1 was found in zebrafish on the 6th day after removal to clean water. After exposure in 2.00 mg L-1 fluralaner, the enzyme activities of SOD, CAT, and GST, GSH-PX, CarE and content of MDA were measured. Only CAT and CarE activities were significantly regulated and the others stayed at a stable level compared to the control group. Meanwhile, transcriptional expression of CYP1C2, CYP1D1, CYP11A were significantly down-regulated at 12 h exposed to 2.00 mg L-1 of fluralaner. Except CYP1D1, others CYPs were up-regulated at different time during exposure periods. Fluralaner and its formulated product (BRAVECTO®) are of low toxicity to zebrafish and are rapidly concentrated in zebrafish and eliminated after exposure in clean water. Antioxidant defense and metabolic systems were involved in the fluralaner-induced toxicity. Among them, the activities of CAT and CarE, and most mRNA expression level of CYPs showed fast response to the sub-lethal concentration of fluralaner, which could be used as a biomarker relevant to the toxicity.
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Affiliation(s)
- Zhong-Qiang Jia
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Di Liu
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Cheng-Wang Sheng
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - John E Casida
- Environmental Chemistry and Toxicology Laboratory, Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, 94720-3112, United States
| | - Chen Wang
- Tea Research Institute, Chinese Academy of Agriculture Sciences, Hangzhou, 310008, China
| | - Ping-Ping Song
- Jiangsu Centre for Research and Development of Medicinal Plants, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210095, China
| | - Yu-Ming Chen
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhao-Jun Han
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chun-Qing Zhao
- 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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Wang Y, Yang G, Dai D, Xu Z, Cai L, Wang Q, Yu Y. Individual and mixture effects of five agricultural pesticides on zebrafish (Danio rerio) larvae. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4528-4536. [PMID: 27943158 DOI: 10.1007/s11356-016-8205-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 12/02/2016] [Indexed: 06/06/2023]
Abstract
In the present study, we evaluated the individual and mixture toxicities of imidacloprid and other four pesticides (atrazine, chlorpyrifos, butachlor, and λ-cyhalothrin) to the zebrafish (Danio rerio) larvae in order to clarify the interactive effects of pesticides on aquatic organisms. Results from the 96-h semi-static toxicity test indicated that chlorpyrifos, λ-cyhalothrin, and butachlor had the highest toxicities to D. rerio with an LC50 value ranging from 0.28 (0.13∼0.38) to 0.45 (0.31∼0.59) mg AI L-1, followed by atrazine with an LC50 value of 15.63 (10.71∼25.76) mg AI L-1, while imidacloprid exhibited the least toxicity to the organisms with an LC50 value of 143.7 (99.98∼221.6) mg AI L-1. Seven pesticide mixtures (two binary mixtures of imidacloprid + atrazine and imidacloprid + λ-cyhalothrin, two ternary mixtures of imidacloprid + atrazine + λ-cyhalothrin and imidacloprid + butachlor + λ-cyhalothrin, two quaternary mixtures of imidacloprid + atrazine + chlorpyrifos + λ-cyhalothrin and imidacloprid + chlorpyrifos + butachlor + λ-cyhalothrin, and one quinquenary mixture of imidacloprid + atrazine + chlorpyrifos + butachlor + λ-cyhalothrin) exhibited synergistic effects with equitoxic ratio and equivalent concentration on the zebrafish. Our results highlighted that the simultaneous presence of several pesticides in the aquatic environment might lead to increased toxicity, causing serious damage to the aquatic ecosystems compared with their individual toxicities. Therefore, the toxic effects of both individual pesticides and their mixtures should be incorporated into the environmental risk evaluation of pesticides.
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Affiliation(s)
- Yanhua Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China
| | - Guiling Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China
| | - Dejiang Dai
- Institute for the Control of Agrochemicals of Zhejiang Province, Hangzhou, 310020, China
| | - Zhenlan Xu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China
| | - Leiming Cai
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China
| | - Qiang Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China.
| | - Yijun Yu
- Quality Supervision Division, Zhejiang Provincial Department of Agriculture, Hangzhou, 310020, China.
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43
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Freitas JS, Kupsco A, Diamante G, Felicio AA, Almeida EA, Schlenk D. Influence of Temperature on the Thyroidogenic Effects of Diuron and Its Metabolite 3,4-DCA in Tadpoles of the American Bullfrog (Lithobates catesbeianus). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:13095-13104. [PMID: 27787998 DOI: 10.1021/acs.est.6b04076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Temperature is a key variable affecting the timing of amphibian metamorphosis from tadpoles to tetrapods, through the production and subsequent function of thyroid hormones (TH). Thyroid function can be impaired by environmental contaminants as well as temperature. Tadpoles can experience large temperature fluctuations in their habitats and many species are distributed in areas that may be impacted by agriculture. Diuron is a widely used herbicide detected in freshwater ecosystems and may impact endocrine function in aquatic organisms. We evaluated the influence of temperature (28 and 34 °C) on the action of diuron and its metabolite 3,4-dichloroaniline (3,4-DCA) on thyroid function and metamorphosis in tadpoles of Lithobates catesbeianus. Exposure to both compounds induced more pronounced changes in gene expression and plasma 3,3',5-triiodothyronine (T3) concentrations in tadpoles treated at higher temperature. T3 concentrations were increased in tadpoles exposed to 200 ng/L of diuron at 34 °C and an acceleration of metamorphosis was observed for the same group. Transcriptomic responses included alteration of thyroid hormone induced bZip protein (thibz), deiodinases (dio2, dio3), thyroid receptors (trα, trβ) and Krüppel-like factor 9 (klf9), suggesting regulation by temperature on TH-gene expression. These results suggest that environmental temperature should be considered in risk assessments of environmental contaminants for amphibian species.
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Affiliation(s)
- Juliane S Freitas
- Graduate Program in Animal Biology, Department of Chemistry and Environmental Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho" , Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | - Allison Kupsco
- Department of Environmental Sciences, University of California , Riverside 900 University Ave, 92521 Riverside, California, United States
| | - Graciel Diamante
- Department of Environmental Sciences, University of California , Riverside 900 University Ave, 92521 Riverside, California, United States
| | - Andreia A Felicio
- Graduate Program in Animal Biology, Department of Chemistry and Environmental Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho" , Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | - Eduardo A Almeida
- Department of Natural Sciences, Fundação Universidade Regional de Blumenau , Av. Antonio da Veiga 140, Itoupava Seca 89030-903, Blumenau, Santa Catarina, Brazil
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California , Riverside 900 University Ave, 92521 Riverside, California, United States
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Michel N, Freese M, Brinkmann M, Pohlmann JD, Hollert H, Kammann U, Haarich M, Theobald N, Gerwinski W, Rotard W, Hanel R. Fipronil and two of its transformation products in water and European eel from the river Elbe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 568:171-179. [PMID: 27289396 DOI: 10.1016/j.scitotenv.2016.05.210] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/29/2016] [Accepted: 05/30/2016] [Indexed: 06/06/2023]
Abstract
Fipronil is an insecticide which, based on its mode of action, is intended to be predominantly toxic towards insects. Fipronil bioaccumulates and some of its transformation products were reported to be similar or even more stable in the environment and to show an enhanced toxicity against non-target organisms compared to the parent compound. The current study investigated the occurrence of Fipronil and two of its transformation products, Fipronil-desulfinyl and Fipronil-sulfone, in water as well as muscle and liver samples of eels from the river Elbe (Germany). In water samples total concentrations of FIP, FIP-d and FIP-s ranged between 0.5-1.6ngL(-1) with FIP being the main component in all water samples followed by FIP-s and FIP-d. In contrast, FIP-s was the main component in muscle and liver tissues of eels with concentrations of 4.05±3.73ngg(-1) ww and 19.91±9.96ngg(-1) ww, respectively. Using a physiologically based toxicokinetic (PBTK) model for moderately hydrophobic organic chemicals, the different distributions of FIP, FIP-d and FIP-s in water and related tissue samples could be attributed to metabolic processes of eels. The measured concentrations in water of all analytes and their fractional distribution did not reflect the assumed seasonal application of FIP and it seems that the water was constantly contaminated with FIP, FIP-d and FIP-s.
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Affiliation(s)
- N Michel
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany; Federal Maritime and Hydrographic Agency-Laboratory, Wüstland 2, 22589 Hamburg, Germany; TU Berlin, Department of Environmental Technology, Institute for Environmental Chemistry, Fasanenstr. 1a, 10623 Berlin, Germany.
| | - M Freese
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
| | - M Brinkmann
- RWTH Aachen University, Department of Ecosystem Analysis, Institute for Environmental Research, Worringerweg 1, 52074 Aachen, Germany
| | - J-D Pohlmann
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
| | - H Hollert
- RWTH Aachen University, Department of Ecosystem Analysis, Institute for Environmental Research, Worringerweg 1, 52074 Aachen, Germany
| | - U Kammann
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
| | - M Haarich
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
| | - N Theobald
- Federal Maritime and Hydrographic Agency-Laboratory, Wüstland 2, 22589 Hamburg, Germany
| | - W Gerwinski
- Federal Maritime and Hydrographic Agency-Laboratory, Wüstland 2, 22589 Hamburg, Germany
| | - W Rotard
- TU Berlin, Department of Environmental Technology, Institute for Environmental Chemistry, Fasanenstr. 1a, 10623 Berlin, Germany
| | - R Hanel
- Thünen-Institute, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
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Wang X, Martínez MA, Wu Q, Ares I, Martínez-Larrañaga MR, Anadón A, Yuan Z. Fipronil insecticide toxicology: oxidative stress and metabolism. Crit Rev Toxicol 2016; 46:876-899. [DOI: 10.1080/10408444.2016.1223014] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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46
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Yu RX, Wang YH, Hu XQ, Wu SG, Cai LM, Zhao XP. Individual and Joint Acute Toxicities of Selected Insecticides Against Bombyx mori (Lepidoptera: Bombycidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2016; 109:327-33. [PMID: 26546487 DOI: 10.1093/jee/tov316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/10/2015] [Indexed: 05/04/2023]
Abstract
As widely used pesticides, organophosphate, pyrethroid, and neonicotinoid insecticides have different modes of action. In the present study, we evaluated individual and joint acute toxicities of two organophosphates, two pyrethroids, and two neonicotinoids against the second-instar silkworm by feeding silkworm with the insecticide-treated mulberry leaves. The 96-h lethal concentration 50 (LC(50)) values of chlorpyrifos, acephate, imidacloprid, thiamethoxam, cypermethrin, and deltamethrin against silkworm were 3.45 (2.95-4.31), 44.45 (39.34-48.56), 1.27 (1.19-1.35), 2.38 (2.19-2.54), 0.36 (0.30-0.43), and 0.037 (0.033-0.041) mg/liter, respectively. Moreover, the 96-h LC(50) values of 50:50 binary mixtures of insecticides against silkworm ranged from 0.048 (0.043-0.054) to 3.52 (2.09-4.51) mg/liter. In addition, the combination coefficient (Q) values of all tested mixtures ranged from 0.36 to 3.37. According to the obtained Q values, the binary mixture of deltamethrin-chlorpyrifos showed antagonistic effects at 96-h interval, while the other binary mixtures had additive effects. Taken together, our results provided valuable guidelines in assessing the ecological risk of these insecticide mixtures against silkworm.
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Affiliation(s)
- R X Yu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
| | - Y H Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
| | - X Q Hu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
| | - S G Wu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
| | - L M Cai
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
| | - X P Zhao
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Rd., Hangzhou 310021, China (; ; ; ; ; )
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Ecotoxicological impacts of isoprothiolane on freshwater fish Cyprinus carpio fingerlings: a multi-biomarker assessment. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13765-015-0066-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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