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Pamanji R, Ragothaman P, Koigoora S, Sivan G, Selvin J. Network analysis of toxic endpoints of fungicides in zebrafish. Toxicol Res (Camb) 2024; 13:tfae087. [PMID: 38845614 PMCID: PMC11150978 DOI: 10.1093/toxres/tfae087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/08/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
Zebrafish being the best animal model to study, every attempt has been made to decipher the toxic mechanism of every fungicide of usage and interest. It is important to understand the multiple targets of a toxicant to estimate the toxic potential in its totality. A total of 22 fungicides of different classes like amisulbrom, azoxystrobin, carbendazim, carboxin, chlorothalonil, difenoconazole, etridiazole, flusilazole, fluxapyroxad, hexaconazole, kresoxim methyl, mancozeb, myclobutanil, prochloraz, propiconazole, propineb, pyraclostrobin, tebuconazole, thiophanate-methyl, thiram, trifloxystrobin and ziram were reviewed and analyzed for their multiple explored targets in zebrafish. Toxic end points in zebrafish are highly informative when it comes to network analysis. They provide a window into the molecular and cellular pathways that are affected by a certain toxin. This can then be used to gain insights into the underlying mechanisms of toxicity and to draw conclusions on the potential of a particular compound to induce toxicity. This knowledge can then be used to inform decisions about drug development, environmental regulation, and other areas of research. In addition, the use of zebrafish toxic end points can also be used to better understand the effects of environmental pollutants on ecosystems. By understanding the pathways affected by a given toxin, researchers can determine how pollutants may interact with the environment and how this could lead to health or environmental impacts.
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Affiliation(s)
- Rajesh Pamanji
- Department of Microbiology, Pondicherry University, R.V. Nagar, Kalapet, Puducherry 605014, India
| | - Prathiviraj Ragothaman
- Department of Microbiology, Pondicherry University, R.V. Nagar, Kalapet, Puducherry 605014, India
| | - Srikanth Koigoora
- Department of Biotechnology, Vignan's Foundation for Science, Technology and Research (Deemed to be University), Guntur -Tenali Rd, Vadlamudi 522213, AP, India
| | - Gisha Sivan
- Division of Medical Research, SRM SRM Medical College Hospital and Research Centre, SRM Institute of Science and Technology, Potheri, SRM Nagar, Kattankulathur, Chennai 603203, India
| | - Joseph Selvin
- Department of Microbiology, Pondicherry University, R.V. Nagar, Kalapet, Puducherry 605014, India
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Liu H, Xiong C, Wang S, Yang H, Sun Y. Biodegradation of the strobilurin fungicide pyraclostrobin by Burkholderia sp. Pyr-1: Characteristics, degradation pathway, water remediation, and toxicity assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123833. [PMID: 38522608 DOI: 10.1016/j.envpol.2024.123833] [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: 01/10/2024] [Revised: 02/26/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Pyraclostrobin, a widely used fungicide, poses significant risks to both the environment and human health. However, research on the microbial degradation process of pyraclostrobin was scarce. Here, a pyraclostrobin-degrading strain, identified as Burkholderia sp. Pyr-1, was isolated from activated sludge. Pyraclostrobin was efficiently degraded by strain Pyr-1, and completely eliminated within 6 d in the presence of glucose. Additionally, pyraclostrobin degradation was significantly enhanced by the addition of divalent metal cations (Mn2+ and Cu2+). The degradation pathway involving ether bond and N-O bond cleavage was proposed by metabolite identification. The sodium alginate-immobilized strain Pyr-1 had a higher pyraclostrobin removal rate from contaminated lake water than the free cells. Moreover, the toxicity evaluation demonstrated that the metabolite 1-(4-chlorophenyl)-1H-pyrazol-3-ol significantly more effectively inhibited Chlorella ellipsoidea than pyraclostrobin, while its degradation products by strain Pyr-1 alleviated the growth inhibition of C. ellipsoidea, which confirmed that the low-toxic metabolites were generated from pyraclostrobin by strain Pyr-1. The study provides a potential strain Pyr-1 for the bioremediation in pyraclostrobin-contaminated aquatic environments.
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Affiliation(s)
- Hongming Liu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Metabolic Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, PR China; Anhui Basic Discipline Research Center of Artificial Intelligence Biotechnology and Synthetic Biology, Anhui Normal University, Wuhu, 241000, Anhui, PR China.
| | - Chengcheng Xiong
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Metabolic Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, PR China; Anhui Basic Discipline Research Center of Artificial Intelligence Biotechnology and Synthetic Biology, Anhui Normal University, Wuhu, 241000, Anhui, PR China
| | - Siwen Wang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Metabolic Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, PR China; Anhui Basic Discipline Research Center of Artificial Intelligence Biotechnology and Synthetic Biology, Anhui Normal University, Wuhu, 241000, Anhui, PR China
| | - Hao Yang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Metabolic Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, PR China; Anhui Basic Discipline Research Center of Artificial Intelligence Biotechnology and Synthetic Biology, Anhui Normal University, Wuhu, 241000, Anhui, PR China
| | - Yang Sun
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Metabolic Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, PR China; Anhui Basic Discipline Research Center of Artificial Intelligence Biotechnology and Synthetic Biology, Anhui Normal University, Wuhu, 241000, Anhui, PR China
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Morrison K, Yang Y, Santana M, Lagisz M, Nakagawa S. A systematic evidence map and bibliometric analysis of the behavioural impacts of pesticide exposure on zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123630. [PMID: 38423273 DOI: 10.1016/j.envpol.2024.123630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/22/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
Pesticides are indispensable in agriculture and have become ubiquitous in aquatic environments. Pesticides in natural environments can cause many negative impacts on aquatic species, ranging from mortality to sub-lethal physiological and behavioural changes. The complex sub-lethal impacts of pesticides are routinely tested on model species, with zebrafish (Danio rerio) being regularly used as a behavioural model. Although behavioural ecotoxicology research using zebrafish is increasing rapidly, we lack quantitative evidence to support which pesticides have been tested and how study designs are carried out. This shortcoming not only limits the deliberate planning for future primary studies to fill the knowledge gaps but also hinders evidence synthesis. To provide quantitative evidence of what pesticides are currently studied and what study designs are used, we combined a systematic evidence map approach and bibliometric analysis. This novel method has been coined research weaving and allows us to elicit gaps and clusters in our evidence base, whilst showing connections between authors and institutions. The methodology can be summarised in five primary steps: literature searching, screening, extraction, data analysis and bibliometric analysis. We identified four areas where research on the sub-lethal effects of pesticide exposure on zebrafish is lacking. First, some widely used pesticides, such as neonicotinoids, are understudied. Second, most studies do not report important elements of the study design, namely the sex and the life-stage of the zebrafish. Third, some behaviours, such as impacts of pesticide exposure on zebrafish cognition, are underexplored. And last, we revealed through the bibliometric analysis that most of the research is conducted in developed countries and there is limited cross country co-authorships. Upon identifying these gaps, we offer solutions for each limitation, emphasizing the importance of diverse global research output and cross-country co-authorships. Our systematic evidence map and bibliometric analysis provide valuable insights for helping to guide future research, which can be used to help support evidence-based policy decisions.
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Affiliation(s)
- Kyle Morrison
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia.
| | - Yefeng Yang
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Manuela Santana
- Marine Ecology Laboratory, Centre for Marine Studies, Federal University of Paraná, Paraná, Brazil
| | - Malgorzata Lagisz
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia; Theoretical Sciences Visiting Program, Okinawa Institute of Science and Technology Graduate University, Onna, Japan
| | - Shinichi Nakagawa
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia; Theoretical Sciences Visiting Program, Okinawa Institute of Science and Technology Graduate University, Onna, Japan
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4
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Yu B, Cheng J, Fang Y, Xie Z, Xiong Q, Zhang H, Shang W, Wurm FR, Liang W, Wei F, Zhao J. Multi-Stimuli-Responsive, Topology-Regulated, and Lignin-Based Nano/Microcapsules from Pickering Emulsion Templates for Bidirectional Delivery of Pesticides. ACS NANO 2024; 18:10031-10044. [PMID: 38547360 DOI: 10.1021/acsnano.3c11621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
The increasing demand for improving pesticide utilization efficiency has prompted the development of sustainable, targeted, and stimuli-responsive delivery systems. Herein, a multi-stimuli-responsive nano/microcapsule bidirectional delivery system loaded with pyraclostrobin (Pyr) is prepared through interfacial cross-linking from a lignin-based Pickering emulsion template. During this process, methacrylated alkali lignin nanoparticles (LNPs) are utilized as stabilizers for the tunable oil-water (O/W) Pickering emulsion. Subsequently, a thiol-ene radical reaction occurs with the acid-labile cross-linkers at the oil-water interface, leading to the formation of lignin nano/microcapsules (LNCs) with various topological shapes. Through the investigation of the polymerization process and the structure of LNC, it was found that the amphiphilicity-driven diffusion and distribution of cyclohexanone impact the topology of LNC. The obtained Pyr@LNC exhibits high encapsulation efficiency, tunable size, and excellent UV shielding to Pyr. Additionally, the flexible topology of the Pyr@LNC shell enhances the retention and adhesion of the foliar surface. Furthermore, Pyr@LNC exhibits pH/laccase-responsive targeting against Botrytis disease, enabling the intelligent release of Pyr. The in vivo fungicidal activity shows that efficacy of Pyr@LNC is 53% ± 2% at 14 days postspraying, whereas the effectiveness of Pyr suspension concentrate is only 29% ± 4%, and the acute toxicity of Pyr@LNC to zebrafish is reduced by more than 9-fold compared with that of Pyr technical. Moreover, confocal laser scanning microscopy shows that the LNCs can be bidirectionally translocated in plants. Therefore, the topology-regulated bidirectional delivery system LNC has great practical potential for sustainable agriculture.
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Affiliation(s)
- Bin Yu
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jingli Cheng
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yun Fang
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Zhengang Xie
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Qiuyu Xiong
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Haonan Zhang
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Wenxuan Shang
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
| | - Frederik R Wurm
- Sustainable Polymer Chemistry, Department of Molecules and Materials, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit Twente, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Wenlong Liang
- Sustainable Polymer Chemistry, Department of Molecules and Materials, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit Twente, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Fanglin Wei
- Zhejiang XinNong Chemical Co., Ltd., Hangzhou 310021, P. R. China
| | - Jinhao Zhao
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, P. R. China
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Kim Y, Bereketoglu C, Sercinoglu O, Pradhan A. In Vitro, In Vivo, and In Silico Analysis of Pyraclostrobin and Cyprodinil and Their Mixture Reveal New Targets and Signaling Mechanisms. Chem Res Toxicol 2024; 37:497-512. [PMID: 38419406 DOI: 10.1021/acs.chemrestox.3c00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Pyraclostrobin and cyprodinil are broad-spectrum fungicides that are used in crops to control diseases. However, they are excessively used and, as a result, end up in the environment and threaten human health and ecosystems. Hence, knowledge of their mechanisms of action is critical to revealing their environmental fate and negative effects and regulating their use. In the present study, we conducted a comprehensive study to show the adverse effects of pyraclostrobin, cyprodinil, and their mixture using zebrafish larvae and different cell lines. Several end points were investigated, including mortality, development, gene expression, reporter assays, and molecular docking simulations. We found that both compounds and their mixture caused developmental delays and mortality in zebrafish, with a higher effect displayed by pyraclostrobin. Both compounds altered the expression of genes involved in several signaling pathways, including oxidative stress and mitochondrial function, lipid and drug metabolisms, the cell cycle, DNA damage, apoptosis, and inflammation. A noteworthy result of this study is that cyprodinil and the mixture group acted as NFκB activators, while pyraclostrobin demonstrated antagonist activity. The AHR activity was also upregulated by cyprodinil and the mixture group; however, pyraclostrobin did not show any effect. For the first time, we also demonstrated that pyraclostrobin had androgen receptor antagonist activity.
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Affiliation(s)
- Yeju Kim
- Biology, the Life Science Center, School of Science and Technology, Örebro University, Örebro SE-70182, Sweden
| | - Ceyhun Bereketoglu
- Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul 34722, Turkey
| | - Onur Sercinoglu
- Department of Bioengineering, Faculty of Engineering, Gebze Technical University, Kocaeli 41400, Turkey
| | - Ajay Pradhan
- Biology, the Life Science Center, School of Science and Technology, Örebro University, Örebro SE-70182, Sweden
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6
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Zhang B, Hao B, Han M, Wang X. Impacts of pyraclostrobin on intestinal health and the intestinal microbiota in common carp (Cyprinus carpio L.). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 199:105762. [PMID: 38458673 DOI: 10.1016/j.pestbp.2023.105762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/13/2023] [Accepted: 12/26/2023] [Indexed: 03/10/2024]
Abstract
Pyraclostrobin (PYR) is a strobilurin fungicide that is commonly used in agriculture, and its use in agriculture may lead to an increase in its residue in the aquatic environment and may have a deleterious influence on the intestinal health of aquatic creatures. Here, common carp were chronically exposed to PYR (0, 0.5, or 5.0 μg/L) for 30 d to determine its effect on the physical and immunological barrier and intestinal microbiota in the intestine. PYR exposure caused significant histological changes; altered the mRNA expression levels of occludin, claudin-2, and zonula occludens-1 (ZO-1); induced oxidative stress in the common carp intestine; and increased the serum D-lactate and diamine oxidase (DAO) levels. Moreover, PYR significantly increased the protein expression levels of tumour necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), and IL-6 while decreasing the level of transforming growth factor beta (TGF-β). Further studies revealed that PYR significantly reduced lysozyme (LZM) and acid phosphatase (ACP) activities as well as complement 3 (C3) and immunoglobulin M (IgM) levels. Furthermore, PYR decreased gut microbial diversity while increasing the abundance of pathogenic bacteria such as Aeromonas and Shewanella, causing an intestinal microbial disturbances in common carp. These results imply that PYR has a negative impact on fish intestinal health and may pose serious health risks to fish by disrupting the intestinal microbiota, physical barrier, and immunological barrier in common carp.
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Affiliation(s)
- Bangjun Zhang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Baozhen Hao
- School of Biological Engineering, Xinxiang University, Xinxiang, Henan 453003, China
| | - Maolin Han
- School of Biological Engineering, Xinxiang University, Xinxiang, Henan 453003, China
| | - Xiaojie Wang
- School of Biological Engineering, Xinxiang University, Xinxiang, Henan 453003, China
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Zhang C, Tang C, Wang Q, Su Y, Zhang Q. Synergistic Effects of Oligochitosan and Pyraclostrobin in Controlling Leaf Spot Disease in Pseudostellaria heterophylla. Antibiotics (Basel) 2024; 13:128. [PMID: 38391514 PMCID: PMC10886130 DOI: 10.3390/antibiotics13020128] [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: 01/04/2024] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
Pseudostellaria heterophylla (or Taizishen in Chinese), a medicinal, edible, and ornamental Chinese herb, is seriously affected by leaf spot disease (LSD). Oligochitosan is a natural agricultural antibiotic that is produced via the degradation of chitosan, which is deacetylated from chitin; pyraclostrobin is a broad-spectrum and efficient strobilurin fungicide. In this work, the ability of pyraclostrobin, oligochitosan, and their formula to manage P. heterophylla leaf spot disease and their role in its resistance, leaf photosynthesis, agronomic plant traits, root growth, and root quality were studied. The results show that the joint application of oligochitosan and low-dosage pyraclostrobin could control LSD more efficiently, with control effects of 85.75-87.49% compared to high-dosage pyraclostrobin or oligochitosan alone. Concurrently, the application of this formula could more effectively improve the resistance, leaf photosynthesis, agronomic plant traits, root yield, and medicinal quality of P. heterophylla, as well as reduce the application of pyraclostrobin. This finding suggests that 30% pyraclostrobin suspension concentrate (SC) 1500-time + 5% oligosaccharin aqueous solutions (AS) 500-time diluent can be recommended for use as a feasible formula to manage LSD and reduce the application of chemical pesticides.
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Affiliation(s)
- Cheng Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease of Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Chenglin Tang
- Guizhou Crop Technology Extension Station, Agriculture and Rural Affairs Department of Guizhou Province, Guiyang 550001, China
| | - Qiuping Wang
- Department of Food and Medicine, Guizhou Vocational College of Agriculture, Qingzhen 551400, China
| | - Yue Su
- Department of Food and Medicine, Guizhou Vocational College of Agriculture, Qingzhen 551400, China
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Qinghai Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease of Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
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Huang X, Luo J, Cao H, Wang A, Zhou F, Liu F, Li B, Mu W, Zhang Y. A multidimensional optimization strategy of pyraclostrobin-loaded microcapsules to improve the selectivity between toxicological risk in zebrafish and efficacy in controlling rice blast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166587. [PMID: 37659543 DOI: 10.1016/j.scitotenv.2023.166587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
Developing microcapsules (MCs) delivery systems can effectively mitigate toxicological risk of highly active/toxic pesticides; whereas the controlled release functions also limiting their practical effectiveness. Therefore, designing a precise regulating strategy to balance the toxicity and bioactivity of MCs is urgently needed. Here, we prepared a series of pyraclostrobin-loaded MCs with different wall materials, particle sizes, core density and shell compactness using interfacial polymerization. The results showed that the MCs released more slowly in water with increasing particle sizes and capsule compactness, and they sunk more quickly with the increasing particle sizes and core density. Additionally, MCs with slower release speed was always accompanied with lower acute toxicity levels to zebrafish. When the release dynamics slowed down to the threshold dose on demand for disease control, facilitating settlement of MCs can further reduce toxicity within spatial and temporal dimensions. The poor accumulation of MCs with larger particle sizes or dense shell in gills was closely related to their efficient detoxification. Importantly, seven of the MCs samples possessed superior selectivity between bio-performance in controlling rice blast and toxicological hazard to fish compared to commercial formulations. The results provide a comprehensive guidance for developing an efficient and safe pesticide delivery system.
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Affiliation(s)
- Xueping Huang
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230001, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jian Luo
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Haichao Cao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Aiping Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Fengyan Zhou
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230001, PR China
| | - Feng Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Beixing Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wei Mu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
| | - Yong Zhang
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230001, PR China.
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Kim Y, Jeon HJ, Kim K, Kim C, Moon JK, Hwang KW, Lee SE. Enantioselective effect of trifloxystrobin in early-stage zebrafish (Danio rerio) embryos: Cardiac abnormalities impacted by E,E-trifloxystrobin enantiomer. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121537. [PMID: 37003586 DOI: 10.1016/j.envpol.2023.121537] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/14/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Trifloxystrobin (TFS) is one of the extensively used strobilurin fungicides, which is composed of four enantiomers and its active form is E,E-TFS. In this study, we assess the acute toxicity of four enantiomers, E,E-, E,Z-, Z,E-, and Z,Z-TFS in zebrafish (Danio rerio) embryos. Among the four enantiomers, only E,E-TFS was found to be acutely toxic, with an estimated LC50 value of 0.68 mg/L. Treatment with E,E-TFS resulted in various phenotypic changes in the embryos, including pericardial and yolk-sac edema, spine curvature, and blood pooling. And it shortened the whole body length in the treated embryos by increasing the total intersegmental vessel numbers using a Tg(fli1a:EGFP) zebrafish line. Further study using Tg(cmlc2:EGFP) zebrafish line revealed that E,E-TFS treatment was associated with cardiac malformations, a failure of heart function, and a lowered heartbeat rate at the concentration of 0.25 mg/L. Also, the differential gene expression analysis identified significant down-regulation of vmhc and cacna1c genes encoding ventricular myosin heavy chain and calcium voltage-gated channel subunit alpha 1C, which are crucial for heart development. These results suggest the need for regular monitoring of E,E-TFS enantiomers after field application and further research into their potential chronic effects on environmental organisms.
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Affiliation(s)
- Yurim Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hwang-Ju Jeon
- Red River Research Station, Louisiana State University Agricultural Center, Bossier City, LA, USA
| | - Kyeongnam Kim
- Institute of Quality and Safety Evaluation of Agricultural Products, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Chaeeun Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Joon-Kwan Moon
- Department of Plant Resources and landscape Architecture, Hankyong National University, Anseong 17579, Republic of Korea
| | - Kyu-Won Hwang
- Department of Plant Resources and landscape Architecture, Hankyong National University, Anseong 17579, Republic of Korea
| | - Sung-Eun Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea; Institute of Quality and Safety Evaluation of Agricultural Products, Kyungpook National University, Daegu, 41566, Republic of Korea; Department of Integrative Biology, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Ahmed AIM, Macirella R, Talarico F, Curcio V, Trotta G, Aiello D, Gharbi N, Mezzasalma M, Brunelli E. Short-term effects of the strobilurin fungicide dimoxystrobin on zebrafish gills: A morpho-functional study. CHEMOSPHERE 2023; 333:138914. [PMID: 37187376 DOI: 10.1016/j.chemosphere.2023.138914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Abstract
Strobilurins represent the most widely used class of fungicides nowadays andare considered relatively non-toxic to mammals and birds but highly toxic to aquatic biota. Dimoxystrobin is one of the novel strobilurins, recently included in the 3rd Watch List of the European Commission as available data indicate that it could pose a significant risk to aquatic species. As yet, the number of studies explicitly assessing the impact of this fungicide on terrestrial and aquatic species is extremely low, and the toxic effects of dimoxystrobin on fish have not been reported. Here we investigate for the first time the alterations induced by two environmentally relevant and very low concentrations of dimoxystrobin (6.56 and 13.13 μg/L) in the fish gills. morphological, morphometric, ultrastructural, and functional alterations have been evaluated using zebrafish as a model species. We demonstrated that even short-term exposure (96 h) to dimoxystrobin alters fish gills reducing the surface available for gas exchange and inducing severe alterations encompassing three reaction patterns: circulatory disturbance and both regressive and progressive changes. Furthermore, we revealed that this fungicide impairs the expression of key enzymes involved in osmotic and acid-base regulation (Na+/K+-ATPase and AQP3) and the defensive response against oxidative stress (SOD and CAT). The information presented here highlights the importance of combining data from different analytical methods for evaluating the toxic potential of currently used and new agrochemical compounds. Our results will also contribute to the discussion on the suitability of mandatory ecotoxicological tests on vertebrates before the introduction on the market of new compounds.
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Affiliation(s)
- Abdalmoiz I M Ahmed
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy
| | - Rachele Macirella
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy
| | - Federica Talarico
- Natural History Museum and Botanical Garden, University of Calabria, 87036 Rende, Italy
| | - Vittoria Curcio
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy
| | - Giuseppe Trotta
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy
| | - Donatella Aiello
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Naouel Gharbi
- Fish Biology and Aquaculture Group, Ocean and Environment Department, NORCE Norwegian Research Center, 5006 Bergen, Norway
| | - Marcello Mezzasalma
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy
| | - Elvira Brunelli
- Department of Biology, Ecology and Earth Science (DiBEST) - University of Calabria, Via P. Bucci 4/B, 87036, Rende, Cosenza, Italy.
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11
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Wang A, Sun Y, Sun Z, Liu X, Yu X, Li K, Zhang X, Xu Y, Mu W, Li B. Modification of sedimentation and bioaccumulation behavior as an efficient strategy to modulate the toxicity of pyraclostrobin to zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 322:121164. [PMID: 36720336 DOI: 10.1016/j.envpol.2023.121164] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/19/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The behavior of pesticide particles or droplets might significantly influence their environmental risks. However, studies on the risk of different pesticide formulations in aqueous environments have rarely been reported. In this study, we prepared three types of pyraclostrobin formulations to evaluate their behavior in the aqueous environment and toxicological risks to zebrafish. The results showed that pyraclostrobin emulsifiable concentrate (EC) sank faster in water with increasing hydrophilicity and density of the solvent. The particles also sank faster with increasing particle size and particle density for suspension concentrate (SC) and microcapsules (MCs). Diverse behavior in water results in different temporal and spatial distributions of the active ingredient. EC-EGDA, SC-5 μm, CS-Large and EC-MO sink or float over time, therefore reducing the effective dose suspended in water. Lower toxicological risks of the pesticides were also observed by reducing the enrichment of pyraclostrobin in zebrafish. In addition to the direct toxicity of the active ingredient, the type of pesticide formulations and their specific compositions might also influence the integrated toxicity. The environmental behavior of pesticide formulations should also be considered for their systematic assessment of environmental risks to ensure the scientific application of pesticides in different scenarios.
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Affiliation(s)
- Aiping Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Yue Sun
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Zhengyi Sun
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xiao Liu
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xin Yu
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Ke Li
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xianxia Zhang
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Yue Xu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Wei Mu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Beixing Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
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12
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Ma D, Yu H, Cui G, Zhu J, Zhu B, Mu W, Liu F. Exposure of zebrafish (Danio rerio) to trans-2-hexenal induces oxidative stress and protein degeneration of the gill. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158813. [PMID: 36113795 DOI: 10.1016/j.scitotenv.2022.158813] [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: 06/26/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Trans-2-hexenal (T2H) has great commercial value for development as a biopesticide, but its toxicity risk to nontarget organisms is unknown. Here, the toxicity and underlying mechanism of T2H on zebrafish (Danio rerio) were investigated. The LC50 (48 h) of T2H on zebrafish is 4.316 μg/mL, and the aldehyde group is essential to its toxicity. In 14-day chronic toxicity tests, 0.432 μg/mL T2H resulted in a higher mortality of zebrafish than the control group. Furthermore, the sensitivity of zebrafish to different administration methods was gill administration>oral administration>transdermal administration>intravenous injection. T2H induced significant cell death and ROS generation in zebrafish gill cells in a concentration-dependent manner. After treatment with 4.316 μg/mL T2H, the expression of oxidative stress-related genes (nrf2, gstp1, keap1b, sod1 and sod2) and the content of malondialdehyde (MDA) were up-regulated. Incubation with T2H caused an immediate denaturation of gill protein, which was aggravated with increasing dose of T2H. We also found that T2H at 21.225 mg/mL significantly reduced the in vitro activity of succinate dehydrogenase (SDH). Among the three amino acids tested, T2H was only found to react with methionine and glycine to form adducts, which may be the basis of the protein denaturation. This study confirmed that T2H could induce oxidative stress and protein denaturation in zebrafish gills, providing important information for risk assessment of T2H exposure.
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Affiliation(s)
- Dicheng Ma
- College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Haiyan Yu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Guangrui Cui
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Jiamei Zhu
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Bingyu Zhu
- Rongcheng Agricultural and Rural Affairs Service Center, Weihai 264300, China
| | - Wei Mu
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Feng Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
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13
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Li H, Hu S, Sun F, Sun Q, Wang N, Li B, Zou N, Lin J, Mu W, Pang X. Residual analysis of QoI fungicides in multiple (six) types of aquatic organisms by UPLC-MS/MS under acutely toxic conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12075-12084. [PMID: 36104645 DOI: 10.1007/s11356-022-22972-3] [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: 04/22/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
In view of the significance of food safety and the possible relationship between residual enrichment and acute toxicity for pesticides in different aquatic organisms, it is essential to establish a sensitive and reliable determination method for pesticides in different aquatic organisms to analyze the enrichment levels. Quinone outside inhibitor fungicides (QoIs) are lipophilic fungicides that pose environmental threats to aquatic organisms. Previous research has mainly focused on QoI residues in aquatic organisms under chronic toxicity, whereas less is known about how pesticide residues differ among aquatic organism under acutely toxic conditions. In the present study, the residues of QoIs in aquatic organisms (Danio rerio, Rana pipiens, Cherax quadricarinatus, Misgurnus anguillicaudatus, Corbicula fluminea, and Ampullaria gigas) were analyzed by ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) coupled with a proposed QuEChERS method. The proposed method was validated in terms of linearity (coefficients of determination of 0.9980-0.9999), the limits of quantification (0.01 μg·kg-1), the relative standard deviation (0.6-4.4%), and recovery (70.12-118.15%). The results demonstrated that the proposed method fulfilled the requirements for pesticide analysis in all tested aquatic organisms. The residues of QoIs in the same aquatic organism exposed to QoI concentrations of 5 and 500 μg L-1 decreased in the order pyraoxystrobin > pyraclostrobin > triclopyricarb > picoxystrobin > azoxystrobin > fluoxastrobin. Furthermore, the acute toxicity was strongly correlated with the enrichment level of the QoIs in aquatic organisms. This study provides the first documentation of a correlation between the enrichment level of QoIs and acute toxicity in aquatic organisms, which provides a basis for the management of agrochemicals considering aquatic ecological risks.
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Affiliation(s)
- Hong Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Shuai Hu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Fengshou Sun
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Qi Sun
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Ning Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, People's Republic of China
| | - Beixing Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Nan Zou
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Jin Lin
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Xiuyu Pang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, People's Republic of China.
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14
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Zhao H, Zhang J, Rajeshkumar S, Feng Y, Liu Y, Li X, Zhang B. Hepatopancreas toxicity and immunotoxicity of a fungicide, pyraclostrobin, on common carp. Comp Biochem Physiol C Toxicol Pharmacol 2022; 262:109445. [PMID: 36030005 DOI: 10.1016/j.cbpc.2022.109445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/31/2022] [Accepted: 08/21/2022] [Indexed: 11/23/2022]
Abstract
Pyraclostrobin (PYR), a strobilurin fungicide, has been widely used to control fungal diseases, posing potential risk to aquatic organisms. However, the toxic effects of PYR to fish remained largely unknown. In this study, common carp (Cyprinus carpio L.) was exposed to environmentally relevant levels of PYR (0, 0.5 and 5.0 μg/L) for 30 days to assess its chronic toxicity and potential toxicity mechanism. The results showed that long-term exposure to PYR induced hepatopancreas damage as evident by increased in serum transaminase activities (AST and ALT). Moreover, PYR exposure remarkably enhanced the expressions of hsp70 and hsp90, decreased the levels of antioxidant enzymes and biomarkers and promoted the reactive oxygen species (H2O2 and O2-) and MDA contents in carp hepatopancreas. PYR exposure also upregulated apoptosis-related genes (bax, apaf-1, caspase-3 and caspase-9) and reduced anti-apoptosis gene bcl-2 in fish hepatopancreas. Moreover, PYR exposure altered the expressions of inflammatory cytokines (IL-1β, IL-6, TNF-α and TGF-β) in the serum and hepatopancreas and the level of NF-κB p65 in the hepatopancreas. Further research indicated that PYR exposure markedly changed the levels of immune parameters (LYZ, C3, IgM, ACP and AKP) in the serum and/or hepatopancreas, indicating that chronic PYR exposure also has immunotoxicity on fish. Additionally, we found that PYR exposure upregulated p38 and jnk MAPK transcription levels, suggesting that MAPK may be play important role in PYR-induced apoptosis and inflammatory response in the hepatopancreas of common carp. In summary, PYR exposure induced oxidative stress, triggered apoptosis, inflammatory and immune response in common carp, which can help to elucidate the possible toxicity mechanism of PYR in fish.
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Affiliation(s)
- Haoyang Zhao
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Jiale Zhang
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | | | - Yiyi Feng
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Yang Liu
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Journal of Henan Normal University, Xinxiang 453007, China
| | - Xiaoyu Li
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Bangjun Zhang
- Henan International Joint Laboratory of Aquatic Ecotoxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China.
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15
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Okeke ES, Qian X, Che J, Mao G, Chen Y, Xu H, Ding Y, Zeng Z, Wu X, Feng W. Transcriptomic sequencing reveals the potential molecular mechanism by which Tetrabromobisphenol A bis (2-hydroxyethyl ether) exposure exerts developmental neurotoxicity in developing zebrafish (Danio rerio). Comp Biochem Physiol C Toxicol Pharmacol 2022; 262:109467. [PMID: 36113845 DOI: 10.1016/j.cbpc.2022.109467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022]
Abstract
Tetrabromobisphenol A bis (2-hydroxyethyl ether) (TBBPA-DHEE) is a derivative of Tetrabromobisphenol A (TBBPA) used as an intermediate flame retardant in engineering polymers. The mechanism of neurodevelopmental toxicity of TBBPA-DHEE remains unclear due to limited toxicological data. We performed behavioral and transcriptomic analyses to assess the neurodevelopmental effects of TBBPA-DHEE on developing zebrafish and potential toxicity mechanisms. Our result shows that exposure to TBBPA-DHEE significantly increased mortality, deformity rate, and reduction in hatch rate, hatchability, and body length relative to the DMSO control. The behavior analysis indicates that TBBPA-DHEE significantly reduced the spontaneous movement of larva compared to the control. The TSH and GH levels were significantly reduced in all the exposure groups in a concentration-dependent manner relative to the DMSO control. TBBPA-DHEE exhibited a significant reduction in locomotor activity across all the exposure groups in the light/dark locomotion test. The transcriptomic analysis result shows that 579 genes were differentially expressed. KEGG analysis shows the enrichment of complement cascade, JAK-STAT signaling pathway, cytokine-cytokine interaction, and phototransduction pathway resulting in a change in mRNA expression of their genes. These observed changes in developmental endpoints, hormonal level, and alteration in mRNA expression of component genes involved in neurodevelopmental pathways could be part of the possible mechanism of the observed toxic effects of TBBPA-DHEE exposure on zebrafish. This study could reveal the possible neurodevelopmental toxicity of TBBPA-DHEE to aquatic species, which could help uncover the health implications of emerging environmental contaminants.
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Affiliation(s)
- Emmanuel Sunday Okeke
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China; Department of Biochemistry, FBS & Natural Science Unit, SGS, University of Nigeria, Nsukka, Enugu State 410001, Nigeria. https://twitter.com/@ES_Okeke
| | - Xian Qian
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Junhao Che
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Guanghua Mao
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Yao Chen
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Hai Xu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Yangyang Ding
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Zhengjia Zeng
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China
| | - Xiangyang Wu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China.
| | - Weiwei Feng
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China.
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16
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Li H, Hu S, Wang X, Jian X, Pang X, Li B, Bai Y, Zhu B, Zou N, Lin J, Mu W. Toxicological differences of trifloxystrobin and kresoxim-methyl on zebrafish in various levels of exposure routes, organs, cells and biochemical indicators. CHEMOSPHERE 2022; 306:135495. [PMID: 35772514 DOI: 10.1016/j.chemosphere.2022.135495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Trifloxystrobin (TRI) and kresoxim-methyl (KRE), as quinone outside inhibitor fungicides (QoIs), have broad applications due to their effective activity against fungi. Excessive usages of agrochemicals trigger environmental risks, such as aquatic organisms (fish). Research performed in recent years has focused on the ecotoxicology of TRI and KRE in fish containing histologic morphology, enzyme activity, protein and gene expression under chronic toxicity conditions, whereas less is known about the underlying mechanisms of toxicity and differences between TRI and KRE in fish under acute toxicity conditions. In the present study, in comparison to different exposure routes [whole-body exposure (WBE), head exposure (HE), trunk exposure (TE), and Oral administration (OA)], the external substances TRI and KRE entered the fish body mainly via gill organs and led to fish toxicity. Furthermore, gill organs and gill cells were vulnerable to TRI and KRE exposure, which indicated that the gill is a vital impaired organ. The 96 h-LC50 (sublethal concentration) value of KRE was 289.8 μg L-1 (R2 = 0.9855) with an approximate 10-fold difference in TRI toxicity. The cytotoxicity exposed to TRI was higher than that in KRE at the same concentration. The potential mechanisms of toxic differences could be various toxic effects in terms of MCIII (mitochondrial complex III) activity, ATP (Adenosine triphosphate) content, MA (mitochondrial activity), ROS (reactive oxygen species) levels, and cellular respiration. Furthermore, the disorder in MCIII activity was probably the main potential mechanisms of toxic differences. To some extent, this research provides not only new insight into the underlying toxic mechanism of TRI and KRE in fish but also a basis for the guidance of agrochemicals considering aquatic risks.
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Affiliation(s)
- Hong Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Shuai Hu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xiayao Wang
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xuewen Jian
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xiuyu Pang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, PR China
| | - Beixing Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Yang Bai
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Bingyu Zhu
- Rongcheng Agricultural and Rural Affairs Service Center, Rongcheng, Shandong, 264300, PR China
| | - Nan Zou
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Jin Lin
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
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17
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Huang X, Wang A, Chen Y, Sun Q, Xu L, Liu F, Li B, Pang X, Mu W. Toxicological risks of SDHIs and QoIs to zebrafish (Danio rerio) and the corresponding poisoning mechanism. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 252:106282. [PMID: 36150281 DOI: 10.1016/j.aquatox.2022.106282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/08/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Quinone outside inhibitor fungicides (QoIs) and succinate dehydrogenase inhibitor fungicides (SDHIs) were classified as highly or moderately toxic to nontarget aquatic organisms, which deterred their application in paddy scenario. Currently, the mechanism of toxicity regarding which factors govern their risk ranking in fish species are not fully explored. In this study, adult zebrafish were exposed to four QoIs (pyraclostrobin, trifloxystrobin, kresoxim-methyl, and azoxystrobin) and three SDHIs (isopyrazam, thifluzamide, and boscalid) to assess its acute toxicity and effects on tissue accumulation and gill injury. The results showed that the overall toxicity level was in the order of QoIs > SDHIs, whereas the order of accumulation capacity was SDHIs > QoIs. Seven mitochondrial respiratory inhibitors exposure induced serious histological damage in the gills, including aneurism, curling, telangiectasia and swelling, and caused mitochondrial dysfunction and weaker complex II and III activities. The correlation between their acute toxicities and in vitro gill cytotoxicity was significant (R = 0.868), whereas the bioaccumulation level was not markedly associated with their 96h-LC50 values in zebrafish (R = -0.686), indicating the degree of target organ (gill) injury may be the decisive factor that governs the risk grade of respiratory inhibitors in fish. Additionally, the docking positions and binding energies of fungicides with the target proteins may be responsible for their differential branchial damage. These results offer a point of reference and theoretical support for the design of fungicides and appropriate formulations with improved environmental safety that could broaden their application scenario.
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Affiliation(s)
- Xueping Huang
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Aiping Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yue Chen
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Qi Sun
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Leyuan Xu
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Beixing Li
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiuyu Pang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an, Shandong 271016, PR China.
| | - Wei Mu
- Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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18
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Zhang C, Li Q, Li J, Su Y, Wu X. Chitosan as an Adjuvant to Enhance the Control Efficacy of Low-Dosage Pyraclostrobin against Powdery Mildew of Rosa roxburghii and Improve Its Photosynthesis, Yield, and Quality. Biomolecules 2022; 12:biom12091304. [PMID: 36139143 PMCID: PMC9496052 DOI: 10.3390/biom12091304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 12/25/2022] Open
Abstract
Powdery mildew is the most serious fungal disease of Rosa roxburghii in Guizhou Province, China. In this study, the control role of chitosan-assisted pyraclostrobin against powdery mildew of R. roxburghii and its influences on the resistance, photosynthesis, yield, quality and amino acids of R. roxburghii were evaluated. The results indicate that the foliar application of 30% pyraclostrobin suspension concentrate (SC) 100 mg L−1 + chitosan 500 mg L−1 displayed a superior control potential against powdery mildew, with a control efficacy of 89.30% and 94.58% after 7 d and 14 d of spraying, respectively, which significantly (p < 0.01) exceeded those of 30% pyraclostrobin SC 150 mg L−1, 30% pyraclostrobin SC 100 mg L−1, and chitosan 500 mg L−1. Simultaneously, their co-application could effectively enhance their effect on the resistance and photosynthesis of R. roxburghii leaves compared to their application alone. Meanwhile, their co-application could also more effectively enhance the yield, quality, and amino acids of R. roxburghii fruits compared to their application alone. This work highlights that chitosan can be applied as an effective adjuvant to promote the efficacy of low-dosage pyraclostrobin against powdery mildew in R. roxburghii and improve its resistance, photosynthesis, yield, quality, and amino acids.
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Affiliation(s)
- Cheng Zhang
- Guizhou Food Quality and Safety Technology Service Platform, School of Public Health, Guizhou Medical University, Guiyang 550025, China
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Qinju Li
- Guizhou Food Quality and Safety Technology Service Platform, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Jiaohong Li
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Yue Su
- Department of Food and Medicine, Guizhou Vocational College of Agriculture, Qingzhen 551400, China
- Correspondence: (Y.S.); (X.W.)
| | - Xiaomao Wu
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China
- Correspondence: (Y.S.); (X.W.)
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19
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Wang X, Chi Y, Li F. Exploring China stepping into the dawn of chemical pesticide-free agriculture in 2050. FRONTIERS IN PLANT SCIENCE 2022; 13:942117. [PMID: 36161034 PMCID: PMC9504061 DOI: 10.3389/fpls.2022.942117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
China has implemented a series of policies to reduce the usage of chemical pesticides to maintain food production safety and to reduce water and soil pollution. However, there is still a huge gap in developing biological pesticides to replace chemical agents or managing pests to prevent crop production loss. It is necessary to predict the future use of chemical pesticides and to exploit the potential ways to control pests and crop diseases. Pesticide usage is affected by seasonal changes and analyzed by using a seasonal autoregressive integrated moving average (ARIMA) model (a statistical model that predicts future trends using time-series data). The future development of biopesticides in China was predicted using the compound annual growth rate (CAGR), which is calculated via the equation [(Final value/Starting value)1/years - 1] according to the annual growth rate of target products over time. According to the reducing trend of pesticide and biological pesticide usage annually, China is predicted possibly step into the era of pesticide-free agriculture in 2050 based on the analysis of the ARIMA model. With CAGR calculation, China will produce from 500 thousand to one million tons of biopesticides in 2050, which can meet the need to replace chemical pesticides in agriculture to prevent the present crop production loss. To achieve the goal, China still has the greatest challenges to develop biopesticides and use various strategies to control pest and crop diseases. China may step into the dawn of chemical pesticide-free agriculture in 2050 if biopesticides can be developed smoothly and pests can be controlled well using various strategies.
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Affiliation(s)
- Xuejiang Wang
- Wuzhoufeng Agricultural Science & Technology Co., Ltd., Yantai, China
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20
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Wang Q, Luo N, Lei M, Zhong L, Li C, Hao P. Facial Irritant Contact Dermatitis Caused by Pyraclostrobin. Clin Cosmet Investig Dermatol 2022; 15:1643-1647. [PMID: 35996399 PMCID: PMC9392485 DOI: 10.2147/ccid.s373075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/12/2022] [Indexed: 01/19/2023]
Abstract
Contact dermatitis and facial contact dermatitis caused by pesticides are not uncommon in China. However, clinically, due to the wide variety of pesticides, they mainly appear in the form of case reports. We reported a 70-year-old male patient developed facial irritant contact dermatitis (ICD) due to pyraclostrobin which was sprayed on his face. Initially, he felt facial burning and tingling, and localized erythematous-edematous and scaly rash appeared on his face as well as front hairline scalp. During the outpatient visit, the main symptoms were a facial burning sensation, itching, and tingling. The patient’s facial lesions improved after treatment. To better protect the skin of agricultural workers, preventive measures should be undertaken, such as personal protective equipment, gas masks, protective clothing and goggles, which are indispensable for manual pesticide spraying. Pyraclostrobin diluted according to the instructions is a potential source of ICD. Agricultural workers should undertake preventive measures during manual pesticide spraying. Safety education and publicity are particularly important. We need dermatologists to spread knowledge and agricultural workers to develop the right protective habits.
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Affiliation(s)
- Qiuyue Wang
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China.,Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Nana Luo
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China.,Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Min Lei
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China.,Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Lingyuan Zhong
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China.,Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Chunxiao Li
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Pingsheng Hao
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
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21
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Dissipation Residue Behaviors and Dietary Risk Assessment of Boscalid and Pyraclostrobin in Watermelon by HPLC-MS/MS. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144410. [PMID: 35889283 PMCID: PMC9318032 DOI: 10.3390/molecules27144410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/28/2022] [Accepted: 07/05/2022] [Indexed: 01/17/2023]
Abstract
Fungicides containing active ingredients of boscalid and pyraclostrobin have been widely applied in watermelon disease control. To provide data for avoiding health hazards caused by fungicides, we investigated its terminal residues and evaluated the dietary risk. In this work, watermelon samples were collected from field sites in six provinces and analyzed with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The average recoveries of boscalid and pyraclostrobin in the watermelon matrix were 97–108% and 93–103%, respectively, with the relative standard deviations (RSDs) ≤ 9.1%. The limits of quantifications (LOQs) were 0.01 and 0.005 mg/kg for boscalid and pyraclostrobin. Twenty-one days after applying the test pesticide with 270 g a.i./ha, the terminal residues of boscalid and pyraclostrobin were all below 0.05 mg/kg and below the maximum residue limits (MRLs) recommended by European Food Safety Authority (EFSA). According to the national estimated daily intake (NEDI), the risk quotients (RQs) of boscalid and pyraclostrobin were 48.4% and 62.6%, respectively. That indicated the pesticide evaluated in watermelon exhibited a low dietary risk to consumers. All data provide a reference for the MRL establishment of boscalid in watermelon for China.
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22
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Huang X, Wang A, Luo J, Gao Y, Guan L, Zhang P, Liu F, Mu W, Li B. Lambda-cyhalothrin-loaded nanocapsules pose an unacceptable acute toxicological risk to zebrafish (Danio rerio) at the adult and larval stages but present an acceptable risk to embryos. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126853. [PMID: 34399229 DOI: 10.1016/j.jhazmat.2021.126853] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Recently, size-controlled pesticide microcapsule (MC) delivery systems have played an important role in precision farming development; however, the potential environmental hazards of MCs with different particle sizes have not been fully characterized. In this study, we prepared a series of lambda-cyhalothrin (LC)-MCs with nano and micron-scale capsule sizes (average diameters of 209.4 nm, MC-N; 2.41 µm, MC-S; 4.87 µm, MC-M; and 12.41 µm, MC-L). The assessment results showed that the release and sedimentation behavior of LC-MCs in water and toxicity to zebrafish at three life stages were all particle size-dependent. As the diameter distribution of approximately 100 nm extended to the micron scale (~27 µm), the capsules released more slowly and sunk more quickly in water. In addition, micron-sized LC-MC exposure resulted in significantly less fish mortality and malformations of larvae and embryos compared with nanosized LC-MC exposure. The highest accumulation of MC-N in the gill and the severest toxicity to larvae suggested that the smaller size and stronger permeability of nanocapsules would pose unpredictable consequences for nontargeted organisms. The obvious toxicological differences of LC-MCs toward aquatic organisms implies that regulating MC production in an appropriate size range is an important prerequisite for achieving efficient but safe pesticide applications.
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Affiliation(s)
- Xueping Huang
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Aiping Wang
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jian Luo
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yue Gao
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Lei Guan
- Rural Economy and Agricultural Technology Service Center, Banpu Town, Haizhou District, Lianyungang, Jiangsu 222000, PR China
| | - Peng Zhang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wei Mu
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Beixing Li
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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23
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Luo J, Gao Y, Liu Y, Du J, Zhang DX, Cao H, Jing T, Li BX, Liu F. Using a reactive emulsifier to construct simple and convenient nanocapsules loaded with lambda-cyhalothrin to achieve efficient foliar delivery and insecticidal synergies. NANOSCALE 2021; 13:15647-15658. [PMID: 34532728 DOI: 10.1039/d1nr04381a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanocapsules are a promising controlled release formulation for foliar pest control. However, the complicated process and high cost limit widespread use in agriculture, so a simpler and more convenient preparation system is urgently needed. Meanwhile, under complex field conditions, the advantageous mechanism of the nanosize effect and sustained release have no quantitative and detailed study. In this study, a reactive emulsifier (OP-10) is used to participate in the interfacial polymerization of the nanoemulsion, and polymer nanocapsules loaded with lambda-cyhalothrin (NCS@LC) are quickly and easily prepared to study the efficacy and synergistic mechanism of foliar pest control. As a result, the nanocapsule is about 150 nm with a stable core-shell structure. The nanoscale state increases the distribution and adhesion of the particles on the leaf surface, which increases the contact efficiency of pesticides under the different physiological stages and behavioral activities of the target organism. The shell structure provides sustained release characteristics and increases the UV resistance by about 2.5 times for pesticides. Compared with microcapsules loaded with lambda-cyhalothrin (CS@LC), NCS@LC not only shows rapid and synergistic insecticidal efficacy but also provides sustained insecticidal efficacy. The mortality of NCS is 3.4 times that of the nanosized emulsion in water (NEW) at the lowest concentration (0.5 mg L-1), and the control efficacy remained 77.3% after 7 days. Compared with NEW, NCS@LC provides excellent field efficacy, while LC50 for zebrafish is only 0.68 times without increasing the aquatic toxicity risk.
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Affiliation(s)
- Jian Luo
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Yue Gao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Yukun Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Jiang Du
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Da-Xia Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, P. R. China
| | - Haichao Cao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Tongfang Jing
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Bei-Xing Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
| | - Feng Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China.
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