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Marciano LPA, Kleinstreuer N, Chang X, Costa LF, Silvério ACP, Martins I. A novel approach to triazole fungicides risk characterization: Bridging human biomonitoring and computational toxicology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 953:176003. [PMID: 39236816 DOI: 10.1016/j.scitotenv.2024.176003] [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: 06/14/2024] [Revised: 08/20/2024] [Accepted: 09/01/2024] [Indexed: 09/07/2024]
Abstract
Brazil stands as the world's leading coffee producer, where the extensive use of pesticides is economically critical yet poses health and environmental risks due to their non-selective mechanisms of action. Specifically, triazole fungicides are widely used in agriculture to manage fungal diseases and are known to disrupt mammalian CYP450 and liver microsomal enzymes. This research establishes a framework for risk characterization of human exposure to triazole fungicides by internal-dose biomonitoring, biochemical marker measurements, and integration of high-throughput screening (HTS) data via computational toxicology workflows from the Integrated Chemical Environment (ICE). Volunteers from the southern region of Minas Gerais, Brazil, were divided into two groups: farmworkers and spouses occupationally and environmentally exposed to pesticides from rural areas (n = 140) and individuals from the urban area to serve as a comparison group (n = 50). Three triazole fungicides, cyproconazole, epoxiconazole, and triadimenol, were detected in the urine samples of both men and women in the rural group. Androstenedione and testosterone hormones were significantly reduced in the farmworker group (Mann-Whitney test, p < 0.0001). The data show a significant inverse association of testosterone with cholesterol, LDL, VLDL, triglycerides, and glucose and a direct association with HDL (Spearman's correlation, p < 0.05). In the ICE workflow, active in vitro HTS assays were identified for the three measured triazoles and three other active ingredients from the pesticide formulations. The curated HTS data confirm bioactivities predominantly related to steroid hormone metabolism, cellular stress processes, and CYP450 enzymes impacted by fungicide exposure at occupationally and environmentally relevant concentrations based on the in vitro to in vivo extrapolation models. These results characterize the potentially significant human health risk, particularly from the high frequency and intensity of exposure to epoxiconazole. This study showcases the critical role of biomonitoring and utility of computational tools in evaluating pesticide exposure and minimizing the risk.
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Affiliation(s)
- Luiz P A Marciano
- Laboratory of Toxicant and Drug Analyses, Department of clinical and toxicological analysis, Federal University of Alfenas - Unifal-MG, Alfenas, Minas Gerais, Brazil
| | - Nicole Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - Luiz F Costa
- Laboratory of Toxicant and Drug Analyses, Department of clinical and toxicological analysis, Federal University of Alfenas - Unifal-MG, Alfenas, Minas Gerais, Brazil
| | | | - Isarita Martins
- Laboratory of Toxicant and Drug Analyses, Department of clinical and toxicological analysis, Federal University of Alfenas - Unifal-MG, Alfenas, Minas Gerais, Brazil.
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Li B, Yang P, Feng Y, Du C, Qi G, Zhao X. Rhizospheric microbiota of suppressive soil protect plants against Fusarium solani infection. PEST MANAGEMENT SCIENCE 2024; 80:4186-4198. [PMID: 38578633 DOI: 10.1002/ps.8122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Fusarium infection has caused huge economic losses in many crops. The study aimed to compare the microbial community of suppressive and conducive soils and relate to the reduction of Fusarium wilt. RESULTS High-throughput sequencing and microbial network analysis were used to investigate the differences in the rhizosphere microbiota of the suppressive and conducive soils and to identify the beneficial keystone taxa. Plant pathogens were enriched in the conducive soil. Potential plant-beneficial microorganisms and antagonistic microorganisms were enriched in the suppressive soil. More positive interactions and keystone taxa existed in the suppressive soil network. Thirty-nine and 16 keystone taxa were identified in the suppressive and conducive soil networks, respectively. Sixteen fungal strains and 168 bacterial strains were isolated from suppressive soil, some of which exhibited plant growth-promotion traits. Thirty-nine bacterial strains and 10 fungal strains showed antagonistic activity against F. solani. Keystone taxa Bacillus and Trichoderma exhibited high antifungal activity. Lipopeptides produced by Bacillus sp. RB150 and chitinase from Trichoderma spp. inhibited the growth of F. solani. Microbial consortium I (Bacillus sp. RB150, Pseudomonas sp. RB70 and Trichoderma asperellum RF10) and II (Bacillus sp. RB196, Bacillus sp. RB150 and T. asperellum RF10) effectively controlled root rot disease, the spore number of F. solani was reduced by 94.2% and 83.3%. CONCLUSION Rhizospheric microbiota of suppressive soil protects plants against F. solani infection. Antagonistic microorganisms in suppressive soil inhibit pathogen growth and infection. Microbial consortia consisted of keystone taxa well control root rot disease. These findings help control Fusarium wilt. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Baolong Li
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ping Yang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yali Feng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Chenyang Du
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Gaofu Qi
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiuyun Zhao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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Villaorduña C, Barrios-Arpi L, Lira-Mejía B, Ramos-Gonzalez M, Ramos-Coaguila O, Inostroza-Ruiz L, Romero A, Rodríguez JL. The Fungicide Ipconazole Can Activate Mediators of Cellular Damage in Rat Brain Regions. TOXICS 2024; 12:638. [PMID: 39330566 PMCID: PMC11435560 DOI: 10.3390/toxics12090638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 08/29/2024] [Accepted: 08/29/2024] [Indexed: 09/28/2024]
Abstract
This study aimed to investigate the toxicity of the fungicide ipconazole on oxidative status, cell death and inflammasome complex activation in the hypothalamus, cerebral cortex, striatum and hippocampus of rats. Female albino rats were randomly divided into a control group and four groups treated with ipconazole at doses of 1, 5, 10 and 20 mg/kg b.w., administered for six days. Ipconazole significantly increased MDA and ROS levels in all brain regions studied, while reducing catalase enzyme activity. The molecular expression of cell death-related genes (AKT1, APAF1, BNIP3, CASP3 and BAX) and the inflammasome complex (CASP1, IL1β, IL6, NLRP3, NFĸB and TNFα) was also assessed, showing increased expression in at least one brain region. The findings demonstrate that ipconazole induces central nervous system toxicity in mammals, highlighting its potential role as a risk factor in the development of neurodegenerative disorders in individuals exposed to this contaminant.
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Affiliation(s)
- Carlos Villaorduña
- Animal Physiology Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
| | - Luis Barrios-Arpi
- Animal Physiology Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
| | - Boris Lira-Mejía
- Animal Physiology Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
| | - Mariella Ramos-Gonzalez
- Zootecnia an Animal Production Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
| | - Olger Ramos-Coaguila
- Zootecnia an Animal Production Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
| | - Luis Inostroza-Ruiz
- Toxicology Laboratory, Faculty of Pharmacy and Biochemistry, Major National University of San Marcos, Lima 15021, Peru
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - José-Luis Rodríguez
- Animal Physiology Laboratory, Faculty of Veterinary Medicine, Major National University of San Marcos, Lima 15021, Peru
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
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Zhang Y, Gu X, Li X, Zhao Q, Hu X, Huang R, Xu J, Yin Z, Zhou Q, Li A, Shi P. Occurrence and risk assessment of azole fungicides during the urban water cycle: A year-long study along the Yangtze River, China. J Environ Sci (China) 2024; 141:16-25. [PMID: 38408817 DOI: 10.1016/j.jes.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/12/2023] [Accepted: 11/12/2023] [Indexed: 02/28/2024]
Abstract
Azole fungicides (AFs) play an important role in the prevention and treatment of fungal diseases in agricultural crops. However, limited studies are addressing the fate and ecological risk of AFs in the urban water cycle at a large watershed scale. To address this gap, we investigated the spatiotemporal distribution and ecological risk of twenty AFs in the lower reaches of the Yangtze River across four seasons. Carbendazim (CBA), tebuconazole (TBA), tricyclazole (TCA), and propiconazole (PPA) were found to be the dominant compounds. Their highest concentrations were measured in January (188.3 ng/L), and November (2197.1 ng/L), July (162.0 ng/L), and November (1801.9 ng/L), respectively. The comparison between wastewater treatment plants (WWTPs) effluents and surface water suggested that industrial WWTPs are major sources of AFs in the Yangtze River. In particular, TBA and PPA were found to be the most recalcitrant AFs in industrial WWTPs, while difenoconazole (DFA) was found to be the most potent pollutant in municipal WWTPs, with an average removal rate of less than 60%. The average risk quotient (RQ) for the entire AFs was 6.45 in the fall, which was higher than in January (0.98), April (0.61), and July (0.40). This indicates that AFs in surface water posed higher environmental risks during the dry season. Additionally, the exposure risk of AFs via drinking water for sensitive populations deserves more attention. This study provides benchmark data on the occurrence of AFs in the lower reaches of the Yangtze River, and offers suggestions for better reduction of AFs.
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Affiliation(s)
- Yangyang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xinjie Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xiuwen Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
| | - Qiuyun Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xiaodong Hu
- Jiangsu Province Hydraulic Research Institute, Nanjing 210023, China
| | - Rui Huang
- Jiangsu Province Hydraulic Research Institute, Nanjing 210023, China
| | - Jixiong Xu
- Jiangsu Province Hydraulic Research Institute, Nanjing 210023, China
| | - Zilong Yin
- Jiangsu Province Hydraulic Research Institute, Nanjing 210023, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Peng Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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Liu C, Hu J, Cao R, Li Y, Zhao S, Li Q, Zhang W. Design of inductive electrostatic boom spray system based on embedded closed electrode structure and droplet distribution test in soybean field. FRONTIERS IN PLANT SCIENCE 2024; 15:1367781. [PMID: 38952844 PMCID: PMC11215122 DOI: 10.3389/fpls.2024.1367781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/27/2024] [Indexed: 07/03/2024]
Abstract
The large water demand, insufficient deposition on the back of the leaf and the uneven distribution of droplets are the problems of traditional agricultural ground plant protection machinery, which leads to low agricultural control efficiency. Combined with the advantages of electrostatic spray technology and the characteristics of high working efficiency and low probability of droplets drift of ground sprayer, an inductive electrostatic boom spray system based on embedded electrode structure is designed and mounted on a large self-propelled boom sprayer for field testing. Based on the working characteristics of the fan nozzle and the analysis of the theory of charge, the inductive electrostatic spray device is designed. The performance of the device is tested and the rationality of the system design is verified by COMSOL numerical simulations, charge-to-mass ratio, and particle size distribution measurements. The spray deposition scanning software and the Box-Behnken experimental design method are used to analyze the spray droplet deposition rate and coverage density of the sprayer on the front and back of the target leaves. The results show that the embedded closed electrode structure designed in this paper can avoid the problem of electrode wetting, and the electric field generated by it is mainly concentrated in the spray liquid film area, and the intensity reaches 6~7 V/m. At the conventional application height (500 mm), the maximum charge-to-mass ratio is 2.91 mC/kg, and the average particle size is 168.22 μm, which is 12.87% lower than that of ordinary spray, when the spray pressure is 0.3 MPa and the electrostatic voltage is 12 kV. The results of field experiments show that the optimum combination of the working parameters with the spray speed is 8.40 m/s, the spray pressure is 0.35 MPa, the charging voltage is 11.50 kV, the amount of droplet deposition in the lower dorsal area of the blade is 1.44 µL·cm-2. This study can provide a certain basis for the application of electrostatic spray technology in ground sprayers.
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Affiliation(s)
- Changxi Liu
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Jun Hu
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Rui Cao
- Beidahuang Group Heilongjiang Nenjiang Farm Co., Ltd., Heihe, China
| | - Yufei Li
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Shengxue Zhao
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Qingda Li
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Wei Zhang
- College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, China
- Heilongjiang Province Conservation Tillage Engineering Technology Research Center, Daqing, China
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Daqing, China
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Weng Y, Gu W, Jin Y. Epoxiconazole altered hepatic metabolism in adult zebrafish based on transcriptomic analysis. Comp Biochem Physiol C Toxicol Pharmacol 2024; 280:109901. [PMID: 38508352 DOI: 10.1016/j.cbpc.2024.109901] [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: 11/28/2023] [Revised: 03/07/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Epoxiconazole (EPX) is a triazole fungicide, which has been widely used in pest control of cereal crops. However, its extensive use has led to concerning levels of residue in water bodies, posing substantial risks to aquatic life. In this study, we characterized the toxicological effects of EPX on 6-month-old male and female zebrafish at 70 and 700 μg/L, respectively. The results revealed that EPX exposure markedly increased both body length and weight in zebrafish of both sexes, consequently elevating their condition factor. Besides, EPX exposure resulted in notable alterations in hepatic histopathology. These changes included loosened hepatocyte structure, ballooning degeneration, nucleolysis, and disappearance of cell line, with male zebrafish exhibiting more severe damage. High concentration of EPX also significantly increased hepatic lipid accumulation in male zebrafish, as well as increased hepatic triglyceride (TG) levels. Correspondingly, there was a notable alteration in the transcription of genes including cyp51, hmgcr, and PPAR-γ, which associated with cholesterol and lipid metabolism. Interestingly, with the hepatic transcriptomic analysis, high concentration of EPX produced 195 upregulated and 107 downregulated differential expression genes. Both KEGG and GO analyses identified significant enrichment of these genes in lipid and amino acid metabolism pathways. Notably, some key genes involved in the steroid synthesis pathway were marked upregulated. In addition, molecular docking study confirmed that EPX could bind CYP51 protein well (△G = -7.7 kcal/mol). Taken together, these findings demonstrated the multiple toxic effects of EPX on adult zebrafish.
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Affiliation(s)
- You Weng
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Weijie Gu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yuanxiang Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China.
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Serra L, Estienne A, Bongrani A, Ramé C, Caria G, Froger C, Jolivet C, Henriot A, Amalric L, Corbin E, Guérif F, Froment P, Dupont J. The epoxiconazole and tebuconazole fungicides impair granulosa cells functions partly through the aryl hydrocarbon receptor (AHR) signalling with contrasted effects in obese, normo-weight and polycystic ovarian syndrome (PCOS) patients. Toxicol Rep 2024; 12:65-81. [PMID: 38259722 PMCID: PMC10801249 DOI: 10.1016/j.toxrep.2023.12.009] [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: 11/07/2023] [Revised: 12/24/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Polycystic ovarian syndrome (PCOS), frequently associated to obesity, is the main reproductive disorder in women in age to procreate. Some evidence suggests that pesticides can result in alterations of the female reproductive system, including polycystic ovary syndrome (PCOS). Here, we detected two fungicides, Tebuconazole (Tb) and Epoxiconazole (Epox) in the soils and waters of French area. Our hypothesis is that these two triazoles could be associated to the etiology of PCOS. We used the human KGN cell line and primary human granulosa cells (hGCs) from different group of patients: normal weight non PCOS (NW), normal weight PCOS (PCOS NW), obese (obese) and obese PCOS (PCOS obese). We exposed in vitro these cells to Tb and Epox from 0 up to 10 mM for 24 and 48 h and analysed cell viability and steroidogenesis. In hGCs NW, cell viability was reduced from 12.5 µM for Tb and 75 µM for Epox. In hGCs NW, Epox decreased progesterone (Pg) and estradiol (E2) secretions and inhibited STAR, HSD3B and CYP19A1 mRNA expressions from 25 µM and increased AHR mRNA expression from 75 µM. Tb exposure also reduced steroid secretion and STAR and CYP19A1 mRNA expressions and increased AHR mRNA expression but at cytotoxic concentrations. Silencing of AHR in KGN cells reduced inhibitory effects of Tb and Epox on steroid secretion. Tb and Epox exposure decreased more steroid secretion in hGCs from obese, PCOS NW and PCOS obese groups than in NW group. Moreover, we found a higher gene expression of AHR within these three groups. Taken together, both Epox and Tb reduced steroidogenesis in hGCs through partly AHR and Tb was more cytotoxic than Epox. These triazoles alter more strongly PCOS and/or obese hGCs suggesting that human with reproductive disorders are more sensitive to triazoles exposure.
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Affiliation(s)
- Loise Serra
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Anthony Estienne
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Alice Bongrani
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Christelle Ramé
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Giovanni Caria
- INRAE, Laboratoire d'Analyses des Sols, 273, rue de Cambrai, 62000 Arras, France
| | - Claire Froger
- INRAE Orléans - US 1106, Unité INFOSOL, Orléans, France
| | | | - Abel Henriot
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Laurence Amalric
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Emilie Corbin
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Fabrice Guérif
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, F-37044 Tours, France
| | - Pascal Froment
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Joëlle Dupont
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
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Yahavi C, Pandey A, Bhateria M, Warkad BV, Trivedi RK, Singh SP. Identification of potential chemical biomarkers of hexaconazole using in vitro metabolite profiling in rat and human liver microsomes and in vivo confirmation through urinary excretion study in rats. CHEMOSPHERE 2024; 358:142123. [PMID: 38677618 DOI: 10.1016/j.chemosphere.2024.142123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/19/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
Hexaconazole (HEX) is an azole fungicide widely used in agricultural practices across various countries and numerous studies have reported the toxic effects of HEX, such as endocrine disruption, immunotoxicity, neurotoxicity and carcinogenicity. Despite its widespread agricultural use and toxic effects, the metabolism of HEX is not completely understood, and information on urinary elimination of HEX or its metabolites is limited. Therefore, in the present study, we aimed to identify HEX metabolites in rat and human liver microsomes followed by their in vivo confirmation using a urinary excretion study in rats to identify potential candidate for exposure biomarkers for human biomonitoring studies. From the in vitro assay, a total of 12 metabolites were observed, where the single oxidation metabolites (M5 and M6) were the most abundant metabolites in both rat and human liver microsomes. The triple oxidation followed by dehydration metabolite, M8 (which could also be hexaconazole acid or hydroxy keto-hexaconazole), and the double oxidation metabolite (M9) were the major metabolites found in rat urine and were detectable in rat urine longer than the parent. These metabolites increased with decreasing concentrations of HEX in the rat urine samples. Therefore, metabolites M8, M9 and M5 could be pursued further as potential biomarkers for assessing and monitoring human exposure to HEX.
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Affiliation(s)
- C Yahavi
- Toxicokinetics Laboratory/ASSIST and REACT Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Anushka Pandey
- Toxicokinetics Laboratory/ASSIST and REACT Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Manisha Bhateria
- Toxicokinetics Laboratory/ASSIST and REACT Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | | | - Ravi Kumar Trivedi
- Zydus Research Center, Zydus Life Sciences Limited, Changodar, Ahmedabad, India
| | - Sheelendra Pratap Singh
- Toxicokinetics Laboratory/ASSIST and REACT Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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9
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Zhou H, Ou M, Dong X, Zhou W, Dai S, Jia W. Spraying performance and deposition characteristics of an improved air-assisted nozzle with induction charging. FRONTIERS IN PLANT SCIENCE 2024; 15:1309088. [PMID: 38617438 PMCID: PMC11010639 DOI: 10.3389/fpls.2024.1309088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 03/11/2024] [Indexed: 04/16/2024]
Abstract
Electrostatic spraying technology can improve the efficiency of pesticide deposition on the surface of leaves and reduce the environmental pollution caused by pesticide drift, which has an important prospect in agricultural pesticide application. To improve the deposition and penetration of droplets in the crop canopy, we designed and optimized an air-assisted electrostatic nozzle and conducted the spraying performance experiment. Parameters, such as charge-to-mass ratio (CMR) and particle size, were tested and analyzed to obtain the suitable operating parameters of nozzle. The results proved that the improved air-assisted electrostatic nozzle has good atomization and chargeability. There is a good charging effect with a charging voltage of 3,000-5,000 V, the CMR increased 127.8% from 0.86 to 1.97 mC/kg as the charge voltage increases from 1,000 to 4,000 V, at an air pressure of 1.0 bar and liquid flow rate of 200 ml/min. Furthermore, we designed a multi-factor orthogonal experiment, which was conducted using a four-factor, three-level design to investigate the effects of operational parameters and canopy characteristics on droplet deposition and penetration. Analysis of variance (ANOVA) and F-test were performed on the experiment results. The results showed that the factor effect on droplet penetration, in descending order, was as follows: spray distance, leaf area index, air pressure, and air pressure × spray distance. The factor effect on abaxial leaf deposition, in descending order, was as follows: air pressure, spray distance, air pressure × charge voltage, spray distance × charge voltage, and charge voltage. For optimal droplet penetration and abaxial leaf deposition, option A 3 B 1 D 2 (air pressure 1.5 bar, spray distance 0.2 m, charge voltage 2,500 V) is recommend. The spray nozzle atomization performance and deposition regulation were studied by experimental methods to determine the optimal values of operating parameters to provide a reference for electrostatic spray system development.
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Affiliation(s)
- Huitao Zhou
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- Key Laboratory of Plant Protection Engineering of Ministry of Agriculture and Rural Affairs, Jiangsu University, Zhenjiang, China
| | - Mingxiong Ou
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- Key Laboratory of Plant Protection Engineering of Ministry of Agriculture and Rural Affairs, Jiangsu University, Zhenjiang, China
| | - Xiang Dong
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- Key Laboratory of Plant Protection Engineering of Ministry of Agriculture and Rural Affairs, Jiangsu University, Zhenjiang, China
| | - Wang Zhou
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
| | - Shiqun Dai
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- Key Laboratory of Plant Protection Engineering of Ministry of Agriculture and Rural Affairs, Jiangsu University, Zhenjiang, China
| | - Weidong Jia
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- Key Laboratory of Plant Protection Engineering of Ministry of Agriculture and Rural Affairs, Jiangsu University, Zhenjiang, China
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Ali S, Ahmad N, Dar MA, Manan S, Rani A, Alghanem SMS, Khan KA, Sethupathy S, Elboughdiri N, Mostafa YS, Alamri SA, Hashem M, Shahid M, Zhu D. Nano-Agrochemicals as Substitutes for Pesticides: Prospects and Risks. PLANTS (BASEL, SWITZERLAND) 2023; 13:109. [PMID: 38202417 PMCID: PMC10780915 DOI: 10.3390/plants13010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/23/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
This review delves into the mesmerizing technology of nano-agrochemicals, specifically pesticides and herbicides, and their potential to aid in the achievement of UN SDG 17, which aims to reduce hunger and poverty globally. The global market for conventional pesticides and herbicides is expected to reach USD 82.9 billion by 2027, growing 2.7% annually, with North America, Europe, and the Asia-Pacific region being the biggest markets. However, the extensive use of chemical pesticides has proven adverse effects on human health as well as the ecosystem. Therefore, the efficacy, mechanisms, and environmental impacts of conventional pesticides require sustainable alternatives for effective pest management. Undoubtedly, nano-agrochemicals have the potential to completely transform agriculture by increasing crop yields with reduced environmental contamination. The present review discusses the effectiveness and environmental impact of nanopesticides as promising strategies for sustainable agriculture. It provides a concise overview of green nano-agrochemical synthesis and agricultural applications, and the efficacy of nano-agrochemicals against pests including insects and weeds. Nano-agrochemical pesticides are investigated due to their unique size and exceptional performance advantages over conventional ones. Here, we have focused on the environmental risks and current state of nano-agrochemicals, emphasizing the need for further investigations. The review also draws the attention of agriculturists and stakeholders to the current trends of nanomaterial use in agriculture especially for reducing plant diseases and pests. A discussion of the pros and cons of nano-agrochemicals is paramount for their application in sustainable agriculture.
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Affiliation(s)
- Shehbaz Ali
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (S.A.); (M.A.D.); (S.M.); (S.S.)
| | - Naveed Ahmad
- Joint Center for Single Cell Biology, Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China;
| | - Mudasir A. Dar
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (S.A.); (M.A.D.); (S.M.); (S.S.)
| | - Sehrish Manan
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (S.A.); (M.A.D.); (S.M.); (S.S.)
| | - Abida Rani
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan;
| | | | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Sivasamy Sethupathy
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (S.A.); (M.A.D.); (S.M.); (S.S.)
| | - Noureddine Elboughdiri
- Chemical Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81441, Saudi Arabia;
- Chemical Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
| | - Yasser S. Mostafa
- Department of Biology, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (Y.S.M.); (S.A.A.)
| | - Saad A. Alamri
- Department of Biology, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (Y.S.M.); (S.A.A.)
| | - Mohamed Hashem
- Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut 71515, Egypt;
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan
| | - Daochen Zhu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (S.A.); (M.A.D.); (S.M.); (S.S.)
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Serra L, Estienne A, Caria G, Ramé C, Jolivet C, Froger C, Henriot A, Amalric L, Guérif F, Froment P, Dupont J. In vitro exposure to triazoles used as fungicides impairs human granulosa cells steroidogenesis. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 104:104295. [PMID: 37852555 DOI: 10.1016/j.etap.2023.104295] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/22/2023] [Indexed: 10/20/2023]
Abstract
Triazoles are the main components of fungicides used in conventional agriculture. Some data suggests that they may be endocrine disruptors. Here, we found five triazoles, prothioconazole, metconazole, difenoconazole, tetraconazole, and cyproconazole, in soil or water from the Centre-Val de Loire region of France. We then studied their effects from 0.001 µM to 1000 µM for 48 h on the steroidogenesis and cytotoxicity of ovarian cells from patients in this region and the human granulosa line KGN. In addition, the expression of the aryl hydrocarbon receptor (AHR) nuclear receptor in KGN cells was studied. Overall, all triazoles reduced the secretion of progesterone, estradiol, or both at doses that were non-cytotoxic but higher than those found in the environment. This was mainly associated, depending on the triazole, with a decrease in the expression of CYP51, STAR, CYP11A1, CYP19A1, or HSD3B proteins, or a combination thereof, in hGCs and KGN cells and an increase in AHR in KGN cells.
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Affiliation(s)
- Loïse Serra
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Anthony Estienne
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Giovanni Caria
- INRAE, Laboratoire d'Analyses des Sols, 273, rue de Cambrai, 62000 Arras, France
| | - Christelle Ramé
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | | | - Claire Froger
- INRAE Orléans - US 1106, Unité INFOSOL, Orléans, France
| | - Abel Henriot
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Laurence Amalric
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Fabrice Guérif
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, F-37044 Tours, France
| | - Pascal Froment
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Joëlle Dupont
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France.
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12
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Ren J, Jin T, Li R, Zhong YY, Xuan YX, Wang YL, Yao W, Yu SL, Yuan JT. Priority list of potential endocrine-disrupting chemicals in food chemical contaminants: a docking study and in vitro/epidemiological evidence integration. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2023; 34:847-866. [PMID: 37920972 DOI: 10.1080/1062936x.2023.2269855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/05/2023] [Indexed: 11/04/2023]
Abstract
Diet is an important exposure route of endocrine-disrupting chemicals (EDCs), but many unfiltered potential EDCs remain in food. The in silico prediction of EDCs is a popular method for preliminary screening. Potential EDCs in food were screened using Endocrine Disruptome, an open-source platform for inverse docking, to predict the binding probabilities of 587 food chemical contaminants with 18 human nuclear hormone receptor (NHR) conformations. In total, 25 contaminants were bound to multiple NHRs such as oestrogen receptor α/β and androgen receptor. These 25 compounds mainly include pesticides and per- and polyfluoroalkyl substances (PFASs). The prediction results were validated with the in vitro data. The structural features and the crucial amino acid residues of the four NHRs were also validated based on previous literature. The findings indicate that the screening has good prediction efficiency. In addition, the epidemic evidence about endocrine interference of PFASs in food on children was further validated through this screening. This study provides preliminary screening results for EDCs in food and a priority list for in vitro and in vivo research.
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Affiliation(s)
- J Ren
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - T Jin
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - R Li
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - Y Y Zhong
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - Y X Xuan
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - Y L Wang
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - W Yao
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - S L Yu
- Key Laboratory of Natural Medicine and Immune-Engineering of Henan Province, Henan University, Kaifeng, Henan, P. R. China
| | - J T Yuan
- College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
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Alias C, Feretti D, Viola GVC, Zerbini I, Bisceglie F, Pelosi G, Zani C. Allium cepa tests: A plant-based tool for the early evaluation of toxicity and genotoxicity of newly synthetized antifungal molecules. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 889:503654. [PMID: 37491113 DOI: 10.1016/j.mrgentox.2023.503654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/19/2023] [Accepted: 06/27/2023] [Indexed: 07/27/2023]
Abstract
Many fungal genera such as Aspergillus, Penicillium, Fusarium and Alternaria are able to produce, among many other metabolites, the aflatoxins, a group of toxic and carcinogenic compounds. To reduce their formation, synthetic fungicides are used as an effective way of intervention. However, the extensive use of such molecules generates long-term residues into the food and the environment. The need of new antifungal molecules, with high specificity and low off-target toxicity is worth. The aim of this study was to evaluate: i) the toxicity and genotoxicity of newly synthesized molecules with a good anti-mycotoxic activity, and ii) the suitability of the Allium cepa multi-endpoint assay as an early screening method for chemicals. Eight compounds were tested for toxicity by using the A. cepa bulb root elongation test and for genotoxicity using the A. cepa bulb mitotic index, micronuclei and chromosome aberrations tests. Three molecules showed no toxicity, while two induced mild toxic effects in roots exposed to the highest dose (100 µM). A more pronounced toxic effect was caused by the other three compounds for which the EC50 was approximately 50 μM. Furthermore, all molecules showed a clear genotoxic activity, both in terms of chromosomal aberrations and micronuclei. Albeit the known good antifungal activity, the different molecules caused strong toxic and genotoxic effects. The results indicate the suitability of experiments with A. cepa as a research model for the evaluation of the toxic and genotoxic activities of new molecules in plants before they are released into the environment.
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Affiliation(s)
- Carlotta Alias
- Department of Medical and Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Donatella Feretti
- Department of Medical and Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Gaia V C Viola
- Department of Medical and Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Ilaria Zerbini
- Department of Medical and Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Franco Bisceglie
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Claudia Zani
- Department of Medical and Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Italy.
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14
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Bokade P, Gaur VK, Tripathi V, Bobate S, Manickam N, Bajaj A. Bacterial remediation of pesticide polluted soils: Exploring the feasibility of site restoration. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129906. [PMID: 36088882 DOI: 10.1016/j.jhazmat.2022.129906] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
For decades, reclamation of pesticide contaminated sites has been a challenging avenue. Due to increasing agricultural demand, the application of synthetic pesticides could not be controlled in its usage, and it has now adversely impacted the soil, water, and associated ecosystems posing adverse effects on human health. Agricultural soil and pesticide manufacturing sites, in particular, are one of the most contaminated due to direct exposure. Among various strategies for soil reclamation, ecofriendly microbial bioremediation suffers inherent challenges for large scale field application as interaction of microbes with the polluted soil varies greatly under climatic conditions. Methodically, starting from functional or genomic screening, enrichment isolation; functional pathway mapping, production of tensioactive metabolites for increasing the bioavailability and bio-accessibility, employing genetic engineering strategies for modifications in existing catabolic genes to enhance the degradation activity; each step-in degradation study has challenges and prospects which can be addressed for successful application. The present review critically examines the methodical challenges addressing the feasibility for restoring and reclaiming pesticide contaminated sites along with the ecotoxicological risk assessments. Overall, it highlights the need to fine-tune the available processes and employ interdisciplinary approaches to make microbe assisted bioremediation as the method of choice for reclamation of pesticide contaminated sites.
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Affiliation(s)
- Priyanka Bokade
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Vivek Kumar Gaur
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; School of Energy and Chemical Engineering, UNIST, Ulsan 44919, South Korea
| | - Varsha Tripathi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Shishir Bobate
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Natesan Manickam
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Abhay Bajaj
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India.
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15
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Zhu Y, Lin X, Wen L, He D. Synthesis and Biological Evaluation of Dipeptide-Based Stilbene Derivatives Bearing a Biheterocyclic Moiety as Potential Fungicides. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248755. [PMID: 36557888 PMCID: PMC9784524 DOI: 10.3390/molecules27248755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
The escalating demand for crop production, environmental protection, and food safety warrants the development of new fungicides with greater efficiency, environmental friendliness, and innocuous metabolites to fight against destructive phytopathogens. Herein, we report on the synthesis and antifungal activity of dipeptide-based stilbene derivatives bearing a thiophene-substituted 1,3,4-oxadiazole fragment for the first time. In vitro bioassay indicated that the target compounds had remarkable antifungal potency superior to previously reported counterparts without a dipeptidyl group, of which compound 3c exhibited the highest activity against Botrytis cinerea with EC50 values of 106.1 μg/mL. Moreover, the in vivo protective effect of compound 3c (59.1%) against tomato gray mold was more potent than that of carboxin (42.0%). Preliminary investigations on the mode of action showed that compound 3c induced marked hyphal malformations and increased the membrane permeability of B. cinerea as well as inhibiting mycelial respiration. These promising results suggest that this novel type of molecular framework has great potential to be further developed as alternative fungicides.
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Affiliation(s)
- Yongchuang Zhu
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangzhou 510300, China
| | - Xingdong Lin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lan Wen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Daohang He
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
- Correspondence: ; Tel.: +86-20-8711-0234
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16
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Zhang Y, Zhou Y, Duan T, Kaium A, Li X. Dissipation and dietary risk assessment of carbendazim and epoxiconazole in citrus fruits in China. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1415-1421. [PMID: 34375005 DOI: 10.1002/jsfa.11474] [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: 03/03/2021] [Revised: 07/09/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Carbendazim and epoxiconazole are widely applied to control anthracnose and sand bark fungal diseases in citrus. The residues of these two fungicides in citrus and their potential risk to consumers have generated much public concern. We therefore sought to investigate the dissipation, residue, and dietary risk assessment of carbendazim and epoxiconazole in citrus. RESULTS The dissipation kinetics and residue levels of carbendazim and epoxiconazole in citrus under field conditions were measured using dispersive solid-phase extraction and ultra-high-performance liquid chromatography-tandem mass spectrometry. The citrus samples were extracted with acetonitrile and purified by primary secondary amine sorbent. The mean recoveries of carbendazim and epoxiconazole ranged from 86.2 to 105.6% and relative standard deviations were ≤9.8%. The half-lives of carbendazim and epoxiconazole in whole citrus ranged from 2.0 to 18.0 days. Hazard quotient (HQ) and risk quotient (RQ) models were applied to whole citrus for dietary exposure risk assessment based on the terminal residue test. Hazard quotients ranged from 0.066 to 0.134% and RQs from 18.48 to 82.12%. CONCLUSION Carbendazim and epoxiconazole in citrus degraded rapidly following first-order kinetics models. The dietary risk of exposure to both carbendazim and epoxiconazole through citrus, based on HQ and RQ, was acceptable for human consumption. This study indicates scientifically validated maximum residue limits in citrus, which are currently lacking for epoxiconazole in China. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ying Zhang
- College of Plant Protection, Hunan Agricultural University, Southern Regional Collaborative Innovation Center for Grain and Oil Crops, Changsha, China
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Yong Zhou
- College of Plant Protection, Hunan Agricultural University, Southern Regional Collaborative Innovation Center for Grain and Oil Crops, Changsha, China
- Institute of Biotechnology, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Tingting Duan
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Abdul Kaium
- Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Xiaogang Li
- College of Plant Protection, Hunan Agricultural University, Southern Regional Collaborative Innovation Center for Grain and Oil Crops, Changsha, China
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17
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Wheeler JR, Weltje L, Lagadic L, Coady K. Response to "A comprehensive review on environmental toxicity of azole compounds to fish". CHEMOSPHERE 2022; 291:133023. [PMID: 34838602 DOI: 10.1016/j.chemosphere.2021.133023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Affiliation(s)
- James R Wheeler
- Corteva Agriscience, Zuid-Oostsingel 24 D, NL-4611 BB, Bergen op Zoom, the Netherlands.
| | - Lennart Weltje
- BASF SE, Crop Protection - Ecotoxicology, Speyerer Strasse 2, D-67117, Limburgerhof, Germany
| | - Laurent Lagadic
- Bayer AG R&D Crop Science, Alfred-Nobel Strasse 50, D-40789, Monheim am Rhein, Germany
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18
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Hamdi H, Ben Othmene Y, Khlifi A, Hallara E, Houas Z, Najjar MF, Abid-Essefi S. Subchronic exposure to Epoxiconazole induced-heart damage in male Wistar rats. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 182:105034. [PMID: 35249655 DOI: 10.1016/j.pestbp.2022.105034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/24/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Epoxiconazole is a worldwide fungicide used to control fungal diseases. Although to its hazardous effects in non-target species, little information is available in the literature to show the cardiotoxic effects of EPX in male rats. Thus, our investigation aimed to assess the outcomes of EPX exposure on some biochemical parameters, the generation of oxidative stress, DNA fragmentation and histopathological alterations in the heart tissue. EPX was administered orally at doses of 8, 24, 40 and 56 mg/kg body weight, representing, respectively NOEL (No observed effect level), NOEL× 3, NOEL× 5 and NOEL× 7 for 28 consecutive days in male Wistar rats. Our results show that EPX induced a significant decrease of cardiac acetylcholinesterase, an increase of biochemical markers, such as creatinine phosphokinase (CPK) and a perturbation of the lipid profile. Furthermore, EPX caused diverse histological modifications in the myocardium, including congestion of cardiac blood vessels, cytoplasmic vacuolization, leucocytic infiltration and hemorrhage. Indeed, we have shown that EPX induces increase of lipid peroxidation, protein oxidation levels and DNA damage. On the other hand, we have found an increase of the antioxidant enzymes activity such as catalase (CAT) and superoxide dismutase (SOD) activities. The glutathione peroxidase and glutathione S tranferase initially enhanced at the doses of 8, 24, and 40 mg/kg b.w. and then decreased at the dose of 56 mg/kg b.w. In conclusion, our work has shown that EPX causes cardiotoxic effects by altering redox status and damaging heart tissue.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia
| | - Yosra Ben Othmene
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia
| | - Aida Khlifi
- Research Laboratory "Bioressources: Integrative Biology & Valorisation, University of Monastir, Tunisia
| | - Elhem Hallara
- Laboratory of Biochemistry and Toxicology, Fattouma Bourguiba University, Hospital of Monastir, Monastir, Tunisia
| | - Zohra Houas
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, Monastir 5019, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Fattouma Bourguiba University, Hospital of Monastir, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia.
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19
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Goessens T, De Baere S, Deknock A, De Troyer N, Van Leeuwenberg R, Martel A, Pasmans F, Goethals P, Lens L, Spanoghe P, Vanhaecke L, Croubels S. Agricultural contaminants in amphibian breeding ponds: Occurrence, risk and correlation with agricultural land use. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150661. [PMID: 34597541 DOI: 10.1016/j.scitotenv.2021.150661] [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: 05/28/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Anthropogenic pressure such as agricultural pollution globally affects amphibian populations. In this study, a total of 178 different compounds from five agrochemical groups (i.e. antimicrobial drugs residues (ADRs), coccidiostats and anthelmintics, heavy metals, mycotoxins and pesticides) were determined monthly, from March until June 2019 in 26 amphibian breeding ponds in Flanders, Belgium. Furthermore, a possible correlation between the number and concentration of selected contaminants that were found and the percentage of arable land within a 200 m radius was studied. Within each group, the highest detected concentrations were obtained for 4-epioxytetracycline (0.422 μg L-1), levamisole (0.550 μg L-1), zinc (333.1 μg L-1), 3-acetyldeoxynivalenol (0.013 μg L-1), and terbuthylazine (38.7 μg L-1), respectively, with detection frequencies ranging from 1 (i.e. 3-acetyldeoxynivalenol) to 26 (i.e. zinc) out of 26 ponds. Based on reported acute and chronic ecotoxicological endpoints, detected concentrations of bifenthrin, cadmium, copper, cypermethrin, hexachlorobenzene, mercury, terbuthylazine, and zinc pose a substantial ecological risk to aquatic invertebrates such as Daphnia magna and Ceriodaphnia dubia, which both play a role in the food web and potentially in amphibian disease dynamics. Additionally, the detected concentrations of copper were high enough to exert chronic toxicity in the gray treefrog (Hyla versicolor). The number of detected compounds per pond ranged between 0 and 5 (ADRs), 0 - 2 (coccidiostats and anthelmintics), 1 - 7 (heavy metals), 0 - 4 (mycotoxins), and 0 - 12 (pesticides) across the four months. Furthermore, no significant correlation was demonstrated between the number of detected compounds per pond, as well as the detected concentrations of 4-epioxytetracycline, levamisole, copper, zinc, enniatin B and terbuthylazine, and the percentage of arable land within a 200 m radius. For heavy metals and pesticides, the number of compounds per pond varied significantly between months. Conclusively, amphibian breeding ponds in Flanders were frequently contaminated with agrochemicals, yielding concentrations up to the high μg per liter level, regardless of the percentage surrounding arable land, however showing temporal variation for heavy metals and pesticides. This research also identifies potential hazardous substances which may be added to the European watch list (CD 2018/408/EC) in the future.
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Affiliation(s)
- T Goessens
- Ghent University, Department of Pharmacology, Toxicology and Biochemistry, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Merelbeke, Belgium.
| | - S De Baere
- Ghent University, Department of Pharmacology, Toxicology and Biochemistry, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Merelbeke, Belgium
| | - A Deknock
- Ghent University, Department of Biology, Animal Sciences and Aquatic Ecology, Aquatic Ecology Unit, Faculty of Bioscience Engineering, Ghent, Belgium
| | - N De Troyer
- Ghent University, Department of Biology, Animal Sciences and Aquatic Ecology, Aquatic Ecology Unit, Faculty of Bioscience Engineering, Ghent, Belgium
| | - R Van Leeuwenberg
- Ghent University, Department of Pathology, Bacteriology and Avian Diseases, Laboratory of Bacteriology and Mycology, Wildlife Health Ghent, Faculty of Veterinary Medicine, Merelbeke, Belgium
| | - A Martel
- Ghent University, Department of Pathology, Bacteriology and Avian Diseases, Laboratory of Bacteriology and Mycology, Wildlife Health Ghent, Faculty of Veterinary Medicine, Merelbeke, Belgium
| | - F Pasmans
- Ghent University, Department of Pathology, Bacteriology and Avian Diseases, Laboratory of Bacteriology and Mycology, Wildlife Health Ghent, Faculty of Veterinary Medicine, Merelbeke, Belgium
| | - P Goethals
- Ghent University, Department of Biology, Animal Sciences and Aquatic Ecology, Aquatic Ecology Unit, Faculty of Bioscience Engineering, Ghent, Belgium
| | - L Lens
- Ghent University, Department of Biology, Terrestrial Ecology Unit, Faculty of Sciences, Ghent, Belgium
| | - P Spanoghe
- Ghent University, Department of Plants and Crops, Laboratory of Crop Protection Chemistry, Faculty of Bioscience Engineering, Ghent, Belgium
| | - L Vanhaecke
- Ghent University, Department of Veterinary Public Health and Food Safety, Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Merelbeke, Belgium; Queen's University, School of Biological Sciences, Institute for Global Food Security, Belfast, Ireland
| | - S Croubels
- Ghent University, Department of Pharmacology, Toxicology and Biochemistry, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Merelbeke, Belgium
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20
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Hamdi H, Graiet I, Abid-Essefi S, Eyer J. Epoxiconazole profoundly alters rat brain and properties of neural stem cells. CHEMOSPHERE 2022; 288:132640. [PMID: 34695486 DOI: 10.1016/j.chemosphere.2021.132640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/09/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Epoxiconazole (EPX), a widely used fungicide for domestic, medical, and industrial applications, could cause neurodegenerative diseases. However, the underling mechanism of neurotoxicity is not well understood. This study aimed to investigate the possible toxic outcomes of Epoxiconzole, a triazole fungicide, on the brain of adult rats in vivo, and in vitro on neural stem cells derived from the subventricular zone of newborn Wistar rats. Our results revealed that oral exposure to EPX at these concentrations (8, 24, 40, 56 mg/kg bw representing respectively NOEL (no observed effect level), NOEL × 3, NOEL × 5, and NOEL × 7) for 28 days caused a considerable generation of oxidative stress in adult rat brain tissue. Furthermore, a significant augmentation in lipid peroxidation and protein oxidation has been found. Moreover, it induced an elevation of DNA fragmentation as assessed by the Comet assay. Indeed, EPX administration impaired activities of antioxidant enzymes and inhibited AChE activity. Concomitantly, this pesticide produced histological alterations in the brain of adult rats. Regarding the embryonic neural stem cells, we demonstrated that the treatment by EPX reduced the viability of cells with an IC50 of 10 μM. It also provoked the reduction of cell proliferation, and EPX triggered arrest in G1/S phase. The neurosphere formation and self-renewal capacity was reduced and associated with decreased differentiation. Moreover, EPX induced cytoskeleton disruption as evidenced by immunocytochemical analysis. Our findings also showed that EPX induced apoptosis as evidenced by a loss of mitochondrial transmembrane potential (ΔΨm) and an activation of caspase-3. In addition, EPX promoted ROS production in neural stem cells. Interestingly, the pretreatment of neural stem cells with the N-acetylcysteine (ROS scavenger) attenuated EPX-induced cell death, disruption of neural stem cells properties, ROS generation and apoptosis. Thus, the use of this hazardous material should be restricted and carefully regulated.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Tunisia
| | - Imen Graiet
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Joel Eyer
- Laboratoire Micro et Nanomédecines Translationnelles (MINT), Inserm 1066, CNRS 6021, Institut de Biologie de La Santé, Centre Hospitalier Universitaire, 49033, Angers, France.
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21
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Epoxiconazole caused oxidative stress related DNA damage and apoptosis in PC12 rat Pheochromocytoma. Neurotoxicology 2022; 89:184-190. [DOI: 10.1016/j.neuro.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/31/2022] [Accepted: 02/10/2022] [Indexed: 11/22/2022]
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22
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Lauschke K, Dalgaard MD, Emnéus J, Vinggaard AM. Transcriptomic changes upon epoxiconazole exposure in a human stem cell-based model of developmental toxicity. CHEMOSPHERE 2021; 284:131225. [PMID: 34182286 DOI: 10.1016/j.chemosphere.2021.131225] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/07/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
Conazole fungicides such as epoxiconazole are mostly used on cereals of crops to inhibit fungal growth through direct inhibition of sterol 14α-demethylase (CYP51A1). However, this enzyme is highly conserved and in humans it is part of the steroid hormone biosynthesis pathway. Endocrine disrupting effects of epoxiconazole have been shown in rodents and have been substantiated by in vitro data, however, the underlying molecular mechanisms are not clear. We took advantage of a human stem cell based in vitro model for developmental toxicity to study the molecular effects of epoxiconazole. This model is based on 3D cultures of embryoid bodies and differentiation into cardiomyocytes, which mimics the early stages of embryonic development. We have previously shown that epoxiconazole impairs differentiation of these embryoid bodies and therefore has the potential to affect human embryonic development. We employed global transcriptome analysis using RNA sequencing and found that the steroid biosynthesis pathway including CYP51A1, the human sterol 14α-demethylase, was highly deregulated by epoxiconazole in our model. We confirmed that most genes of the steroid biosynthesis pathway were upregulated, including CYP51A1, suggesting a compensatory mechanism at the gene expression level. Our data suggest that epoxiconazole acts mainly by decreasing cholesterol biosynthesis in the cells. We conclude that epoxiconazole bears the potential to harm human embryonic development through inhibition of the steroid biosynthesis pathway. As this may be a common feature of compounds that target sterol 14α-demethylase, we add evidence to the assumption that conazole fungicides may be human developmental toxicants.
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Affiliation(s)
- Karin Lauschke
- National Food Institute, Technical University of Denmark, Denmark; Department for Biotechnology and Biomedicine, Technical University of Denmark, Denmark
| | | | - Jenny Emnéus
- Department for Biotechnology and Biomedicine, Technical University of Denmark, Denmark
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23
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Lu ZH, Lv DZ, Zhou DD, Yang ZH, Wang MY, Abdelhai Senosy I, Liu X, Chen M, Zhuang LY. Enhanced removal efficiency towards azole fungicides from environmental water using a metal organic framework functionalized magnetic lignosulfonate. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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24
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Li L, Zhu T, Song Y, Feng L, Kear PJ, Riseh RS, Sitohy M, Datla R, Ren M. Salicylic acid fights against Fusarium wilt by inhibiting target of rapamycin signaling pathway in Fusarium oxysporum. J Adv Res 2021; 39:1-13. [PMID: 35777900 PMCID: PMC9263656 DOI: 10.1016/j.jare.2021.10.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/11/2021] [Accepted: 10/28/2021] [Indexed: 01/04/2023] Open
Abstract
Isolating and sequencing the genome of F. oxysporum from potato tubers with dry rot symptoms. SA efficiently arrests hyphal growth, sporular production and pathogenicity of F. oxysporum. SA inhibits the activity of FoTORC1 via activating FoSNF1 in F. oxysporum. Transgenic potato plants with interference of FoTOR1 and FoSAH1 genes prevent the occurrence of Fusarium wilt. Providing insights SA into controlling various fungal diseases by targeting the SNF1-TORC1 pathway of pathogens.
Introduction Objectives Methods Results Conclusion
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Affiliation(s)
- Linxuan Li
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu 610000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China; Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
| | - Tingting Zhu
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu 610000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China; Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
| | - Yun Song
- School of Life Sciences, Liaocheng University, Liaocheng 252000, China
| | - Li Feng
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu 610000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China; Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
| | - Philip James Kear
- International Potato Center (CIP) China Center Asia Pacific, Beijing 100000, China
| | - Rooallah Saberi Riseh
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Mahmoud Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Raju Datla
- Global Institute for Food Security in Saskatoon, University of Saskatchewan, Saskatoon S7N0W9, Canada
| | - Maozhi Ren
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu 610000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China; Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China.
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25
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Li E, Krsmanovic A, Ballhausen MB, Rillig MC. Fungal response to abruptly or gradually delivered antifungal agent amphotericin B is growth stage dependent. Environ Microbiol 2021; 23:7701-7709. [PMID: 34633124 DOI: 10.1111/1462-2920.15797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 12/01/2022]
Abstract
Anthropogenic disturbances pose a multitude of novel challenges to ecosystems. While many experiments have tested effects using abrupt treatment applications, most environmental changes in fact are gradual. Since ecosystem responses might be highly dependent on the temporal nature of stressors, it is crucial to differentiate the effects of abrupt vs gradual treatment application. Antifungal agents, which are widely used in disease control both for humans and in agriculture, are becoming a new class of environmental contaminants. In this study, we examined the effect of a sub-lethal application of one antifungal agent, amphotericin B. We applied different rates of delivery, e.g. gradual and abrupt, and monitored biomass and sporulation of the model fungus Neurospora crassa in a batch culture. Our results demonstrate that: (i) the effect size difference between abrupt and gradual treatments is fungal growth stage dependent and (ii) the gradual treatment clearly had a higher sporulation level compared with all types of abrupt treatments. Our findings highlight the importance of considering the rate of change in environmental change research and point to a new research direction for future global change studies. Furthermore, our results also have important implications for avoiding treatment-induced spore production in agriculture and medical practise.
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Affiliation(s)
- Erqin Li
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Aleksandra Krsmanovic
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Max-Bernhard Ballhausen
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Matthias C Rillig
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
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26
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Lin L, Xu K, Shen D, Chou SH, Gomelsky M, Qian G. Antifungal weapons of Lysobacter, a mighty biocontrol agent. Environ Microbiol 2021; 23:5704-5715. [PMID: 34288318 DOI: 10.1111/1462-2920.15674] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 11/27/2022]
Abstract
Bacteria interact with fungi in a variety of ways to inhibit fungal growth, while the underlying mechanisms remain only partially characterized. The plant-beneficial Bacillus and Pseudomonas species are well-known antifungal biocontrol agents, whereas Lysobacter are far less studied. Members of Lysobacter are easy to grow in fermenters and are safe to humans, animals and plants. These environmentally ubiquitous bacteria use a diverse arsenal of weapons to prey on other microorganisms, including fungi and oomycetes. The small molecular toxins secreted by Lysobacter represent long-range weapons effective against filamentous fungi. The secreted hydrolytic enzymes act as intermediate-range weapons against non-filamentous fungi. The contact-dependent killing devices are proposed to work as short-range weapons. We describe here the structure, biosynthetic pathway, action mode and applications of one of the best-characterized long-range weapons, the heat-stable antifungal factor (HSAF) produced by Lysobacter enzymogenes. We discuss how the flagellar type III secretion system has evolved into an enzyme secretion machine for the intermediate-range antifungal weapons. We highlight an intricate mechanism coordinating the production of the long-range weapon, HSAF and the proposed contact-dependent killing device, type VI secretion system. We also overview the regulatory mechanisms of HSAF production involving specific transcription factors and the bacterial second messenger c-di-GMP.
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Affiliation(s)
- Long Lin
- College of Plant Protection, Laboratory of Plant Immunity, Key Laboratory of Integrated Management of Crop Diseases and Pests, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu, 210095, China
| | - Kangwen Xu
- College of Plant Protection, Laboratory of Plant Immunity, Key Laboratory of Integrated Management of Crop Diseases and Pests, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu, 210095, China
| | - Danyu Shen
- College of Plant Protection, Laboratory of Plant Immunity, Key Laboratory of Integrated Management of Crop Diseases and Pests, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu, 210095, China
| | - Shan-Ho Chou
- Institute of Biochemistry, and NCHU Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Mark Gomelsky
- Department of Molecular Biology, University of Wyoming, Laramie, WY, 82071, USA
| | - Guoliang Qian
- College of Plant Protection, Laboratory of Plant Immunity, Key Laboratory of Integrated Management of Crop Diseases and Pests, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu, 210095, China
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27
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Wu S, Ji X, Wang J, Wu H, Han J, Zhang H, Xu J, Qian M. Fungicide bromuconazole has the potential to induce hepatotoxicity at the physiological, metabolomic and transcriptomic levels in rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 280:116940. [PMID: 33789219 DOI: 10.1016/j.envpol.2021.116940] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Bromuconazole (BROMU), a representative triazole fungicide, has been widely used in agriculture for its low cost and highly efficiency against various fungi. BROMU residue was often detected in the environment and food chain, even though there is indication of health risk to animals, and in humans. However, the data related to the toxicity of BROMU in animals remains unclear, and the mechanism is still not fully elucidated. Here, male adult rats were exposed to 0, 13.8, 32.8 and 65.6 mg/kg/d of BROMU for 10 days by oral gavage. It was observed that short time BROMU exposure not only caused liver histological damage, including vacuolar degeneration of hepatocytes with pyknotic nuclei, but also changed the levels of some hepatic physiological parameters, including aspartate transaminase (AST), triglyceride (TG), pyruvate and total cholesterol (TC), indicating that BROMU causes hepatotoxicity in rats. In addition, according to the transcriptomics and metabolomics analysis, a total of 58 metabolites and 259 genes significantly changed in the high-dose BROMU treated group. Although several different pathways are involved, lipid metabolism- and bile acids metabolism-related pathways were highlighted in both metabolomics and transcriptomics analysis. More importantly, further validation had proven that BROMU could not only interact with peroxisome proliferator-activated receptor γ (PPAR-γ), but also significantly decrease its protein and gene expression in the liver, supporting that BROMU decreased the TG synthesis via inhibiting the PPAR-γ pathway. These results clearly showed that BROMU exposure could result in hepatotoxicity at metabolomic and transcriptomic level in rats. These observations could provide some important steps toward understanding the mechanism underlying BROMU-induced mammalian toxicity.
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Affiliation(s)
- Shuchun Wu
- Hangzhou Medical College, Hangzhou, China; College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Xiaofeng Ji
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China
| | - Jianmei Wang
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China
| | - Huizhen Wu
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China
| | - Jianzhong Han
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Hu Zhang
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China
| | - Jie Xu
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China
| | - Mingrong Qian
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, China.
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28
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Hamdi H, Abid-Essefi S, Eyer J. Neuroprotective effects of Myricetin on Epoxiconazole-induced toxicity in F98 cells. Free Radic Biol Med 2021; 164:154-163. [PMID: 33429020 DOI: 10.1016/j.freeradbiomed.2020.12.451] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/26/2020] [Accepted: 12/29/2020] [Indexed: 01/08/2023]
Abstract
Epoxiconazole is one of the most commonly used fungicides in the world. The exposition of humans to pesticides is mainly attributed to its residue in food or occupational exposure in agricultural production. Because of its lipophilic character, Epoxiconazole can accumulate in the brain Heusinkveld et al. (2013) [1]. Consequently, it is urgent to explore efficient strategies to prevent or treat Epoxiconazole-related brain damages. The use of natural molecules commonly found in our diet represents a promising avenue. Flavonoids belong to a major sub-group compounds possessing powerful antioxidant activities based on their different structural and sterical properties [2]. We choose to evaluate Myricetin, a flavonoid with a wide spectrum of pharmacological effects, for its possible protective functions against Epoxiconazole-induced toxicities. The cytotoxicity induced by this fungicide was evaluated by the cell viability, cell cycle arrest, ROS generation, antioxidant enzyme activities, and Malondialdehyde production, as previously described in Hamdi et al., 2019 [3]. The apoptosis was assessed through the evaluation of the mitochondrial transmembrane potential (ΔΨm), caspases activation, DNA fragmentation, cytoskeleton disruption, nuclear condensation, appearance of sub-G0/G1 peak (fragmentation of the nucleus) and externalization of Phosphatidylserine. This study indicates that pre-treatment of F98 cells with Myricetin during 2 h before Epoxiconazole exposure significantly increased the survival of cells, restored DNA synthesis of the S phase, abrogated the ROS generation, regulated the activities of Catalase (CAT) and Superoxide Dismutase (SOD), and reduced the MDA level. The loss of mitochondrial membrane potential, DNA fragmentation, cytoskeleton disruption, chromatin condensation, Phosphatidylserine externalization, and Caspases activation were also reduced by Myricetin. Together, these findings indicate that Myricetin is a powerful natural product able to protect cells from Epoxiconazole-induced cytotoxicity and apoptosis.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Joel Eyer
- Laboratoire Micro et NanomédecinesTranslationnelles (MINT), Inserm 1066, CNRS 6021, Institut de Biologie de La Santé, Centre Hospitalier Universitaire, 49033, Angers, France.
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29
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Heneberg P, Svoboda J, Pech P. Claustral colony founding does not prevent sensitivity to the detrimental effects of azole fungicides on the fecundity of ants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 280:111740. [PMID: 33272659 DOI: 10.1016/j.jenvman.2020.111740] [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: 08/30/2020] [Revised: 11/08/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Azole fungicides (benzimidazoles, triazoles and imidazoles) are among the most widely used agrochemicals in the world. Unfortunately, azole fungicides are increasingly recognized for playing the role of endocrine disruptors in non-target organisms. Previously, the fecundity of ants with semi-claustral colony founding was found to be severely decreased in response to field-realistic concentrations of azole fungicides. However, during claustral colony founding, the ant queens do not feed and could therefore be protected against effects of agrochemicals applied during the colony founding. In the present study, we hypothesized that claustral colony founding is associated with a lower risk of oral exposure of ant queens to azole fungicides. We exposed queens of a common farmland ant species with claustral colony founding, Lasius niger, to four azole fungicides (epoxiconazole, flusilazole, prochloraz and thiophanate-methyl) that are commonly used in foliar applications and analyzed the differences in fecundity between fungicide-treated groups and the control water-treated group. We found that oral exposure to all four tested formulations of azole fungicides decreased the fecundity of L. niger queens. The decreases in fecundity ranged from 30.5% (epoxiconazole) to 40.3% (prochloraz), although the concentrations of fungicides used were several times lower than the minimum effective concentrations used to eliminate the target fungi by foliar applications of examined fungicides on various crops. Ants with both claustral and semi-claustral colony founding are highly vulnerable to field-realistic concentrations of azole fungicides that are sprayed in foliar applications. Azole fungicides substantially decrease the fitness of ant queens and may explain part of the recently observed decreases in farmland insect abundance and diversity.
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Affiliation(s)
- Petr Heneberg
- Charles University, Third Faculty of Medicine, Prague, Czech Republic.
| | - Jakub Svoboda
- University of Hradec Králové, Faculty of Science, Hradec Králové, Czech Republic
| | - Pavel Pech
- University of Hradec Králové, Faculty of Science, Hradec Králové, Czech Republic
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30
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De Simone N, Capozzi V, Amodio ML, Colelli G, Spano G, Russo P. Microbial-based Biocontrol Solutions for Fruits and Vegetables: Recent Insight, Patents, and Innovative Trends. Recent Pat Food Nutr Agric 2021; 12:3-18. [PMID: 33550980 DOI: 10.2174/2212798412666210125141117] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/25/2020] [Accepted: 12/29/2020] [Indexed: 05/01/2023]
Abstract
BACKGROUND Fruits and vegetables are susceptible to colonisation by undesired microflora, which, in pre- and post-harvest conditions, negatively impact the quality of these products, leading to a reduction of yield, shelf-life, and marketability. In the few last years, the use of microbial Biological Control Agents (BCAs) has assumed international relevance in order to control harmful microorganisms, as a promising alternative to chemical interventions. OBJECTIVE The purpose of this review is to discuss the microbial-based solutions applicable for the biocontrol of the main microbial spoilers, phytopathogens, and human food-borne pathogens affecting fruits and vegetables during their production and storage. RESULTS A comprehensive overview of the scientific literature investigating the effectiveness of BCA-based products available on the market is provided, as well as of the most recent patents protecting biotechnological applications in this field. Innovative trends are discussed, with a particular focus on the integration of BCAs to minimise spoilage phenomena and microbiological risks adopting combined approaches. CONCLUSION This study underlines the growing interest about biocontrol strategies to counteract the growth of spoilage and/or pathogenic microorganisms indicating that in the next years a considerable increase of commercial products and patents will be developed worldwide to exploit innovative biotechnological solutions in the sector.
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Affiliation(s)
- Nicola De Simone
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Vittorio Capozzi
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), C/O CS-DAT, Via Michele Protano, Foggia 71121, Italy
| | - Maria Luisa Amodio
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Giancarlo Colelli
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Giuseppe Spano
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Pasquale Russo
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
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31
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Behl M, Willson CJ, Cunny H, Foster PMD, McIntyre B, Shackelford C, Shockley KR, McBride S, Turner K, Waidyanatha S, Blystone CR. Multigenerational reproductive assessment of 4-methylimidazole administered in the diet to Hsd:Sprague Dawley SD rats. Reprod Toxicol 2020; 98:13-28. [PMID: 32229253 PMCID: PMC11423902 DOI: 10.1016/j.reprotox.2020.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 02/11/2020] [Accepted: 03/11/2020] [Indexed: 02/07/2023]
Abstract
The general population, including children and adolescents, is exposed to 4-methylimidazole (4-MI) in the diet. 4-MI is a by-product of caramel color manufacturing. It has been previously classified as a possible human carcinogen and displays potential reproductive toxicity. A follow up assessment of reproductive toxicity was conducted in rats utilizing the reproductive assessment by continuous breeding paradigm, in which multiple generations were exposed to 4-MI in diet at 750, 2500, and 5000 ppm. 4-MI exposure was associated with delays in preputial separation and vaginal opening, impairment in reproductive performance, and concomitant histopathological findings in the prostate, testis, and epididymis at 2500 and 5000 ppm. The Lowest Observed Adverse Effect Level for reproductive (based on prostate atrophy) and developmental toxicity (based on delays in preputial separation and vaginal opening) was 750 ppm, equivalent to approximately 50-60 mg/kg bw/day.
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Affiliation(s)
- Mamta Behl
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States.
| | - Cynthia J Willson
- Integrated Laboratory Systems, Inc., Research Triangle Park, NC 27709, United States
| | - Helen Cunny
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States
| | - Paul M D Foster
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States
| | - Barry McIntyre
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States
| | | | - Keith R Shockley
- Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27703, United States
| | - Sandra McBride
- Social and Scientific Systems, Durham, NC, 27709, United States
| | - Katie Turner
- RTI International, Research Triangle Park, NC 27709, United States
| | - Suramya Waidyanatha
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States
| | - Chad R Blystone
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, United States
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Alexandrino DAM, Mucha AP, Almeida CMR, Carvalho MF. Microbial degradation of two highly persistent fluorinated fungicides - epoxiconazole and fludioxonil. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122545. [PMID: 32213384 DOI: 10.1016/j.jhazmat.2020.122545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/10/2020] [Accepted: 03/14/2020] [Indexed: 06/10/2023]
Abstract
Biodegradation of two highly persistent fluorinated fungicides, epoxiconazole (EPO) and fludioxonil (FLU), by microbial consortia enriched from estuarine sediment and agricultural soil is reported. After an enrichment period of 6 months, four microbial consortia were able to completely remove and defluorinate the fungicides in co-metabolic conditions. Defluorination was biologically mediated and results suggest it is not a primary catabolic step, as fungicide removal was always faster than its defluorination. Three of the four enriched consortia had similar biodegradation performances in the absence of a co-substrate. Biodegradation kinetics revealed that microbial degradation followed a first-order kinetics, with cultures being capable of biodegrading concentrations up to 10 mg L-1 of EPO or FLU, in a maximum of 21 days. Estimated half-life values for these compounds were significantly lower than those reported in literature, highlighting the unique metabolic performance of the obtained consortia. Analysis of their microbial composition revealed that they integrate several bacterial species belonging to the Proteobacteria phylum, with the most common genera being Pseudomonas, Ochrobactrum and Comamonas. This is the first study providing clear evidence on the biodegradation of EPO and FLU, opening doors for the design of bioremediation technologies for the recovery of ecosystems polluted with such recalcitrant compounds.
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Affiliation(s)
- Diogo A M Alexandrino
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal.
| | - Ana P Mucha
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre 790, 4150-171, Porto, Portugal
| | - C Marisa R Almeida
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Maria F Carvalho
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
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Micronucleus Assay in Environmental Biomonitoring. FOLIA VETERINARIA 2020. [DOI: 10.2478/fv-2020-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Nowadays many chemicals are widely used in agriculture to ensure high crop yields or in veterinary/human medicine to cure diseases. After their improper usage they may contaminate the environment, persist in it and adversely affect both the target and/or the non-target organisms. One of the ways to detect the occurrence of chemicals in the environment is to assess their impact on aquatic and farm animals; both are directly or indirectly exposed via their feed and water. The micronucleus assay is a standardly used cytogenetic test for the simultaneous detection of clastogenic and aneugenic agents. Additionally, cytotoxic effects are also assessed by analysing the proliferation changes using the cytokinesis-blocked proliferation index. The occurrence of micronuclei is analysed in many types of cells like the peripheral blood cells, bone marrow or cell lines according to standards for micronuclei detection. The analysis of published results has shown that the micronucleus assay is, together with the chromosomal aberration test, one of the most often used test in genotoxicity assessment. Its results have contributed to reassessing the use of multiple chemicals available on the market. Moreover, it is a compulsory test before approving the chemical/ pesticide for the market.
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Biocontrol of Alternaria alternata and Fusarium oxysporum by Trichoderma asperelloides and Bacillus paralicheniformis in tomato plants. Antonie van Leeuwenhoek 2020; 113:1247-1261. [PMID: 32564276 DOI: 10.1007/s10482-020-01433-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/02/2020] [Indexed: 01/08/2023]
Abstract
The objective of this work was to evaluate the effectiveness of the putative biocontrol agents (PBA) Bacillus paralicheniformis and Trichoderma asperelloides in vitro and in vivo to control two of the most important tomato plant diseases: vascular wilt (Fusarium oxysporum) and early blight (Alternaria alternata). The assessment of the in vitro interactions between the PBA and the phytopathogenic fungi was performed by dual confrontation assays. The biocontrol effectiveness of the individual and combined PBA treatments towards individual phytopathogen inoculations was evaluated in tomato plants. T. asperelloides was able to exert an outstanding mycoparasitic effect on both phytopathogenic fungi in the in vitro tests by hyphal strangulation and penetration. In addition, the individual PBA treatments were effective in the biocontrol of A. alternata and F. oxysporum in tomato plants reducing the plant disease severity in more than 53.8 and 66.7% for each of the pathogens, respectively. On the other hand, the combined use of the tested strains showed similar effectiveness in the biocontrol of A. alternata, but no synergism was observed. In addition, it was concluded that B. paralicheniformis protected the plants from the attack of A. alternata through the induction of the systemic resistance of the plant. This study demonstrated the effectiveness of the individual and combined use of the strains tested for the biocontrol of A. alternata and F. oxysporum in tomato plants.
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Creusot N, Casado-Martinez C, Chiaia-Hernandez A, Kiefer K, Ferrari BJD, Fu Q, Munz N, Stamm C, Tlili A, Hollender J. Retrospective screening of high-resolution mass spectrometry archived digital samples can improve environmental risk assessment of emerging contaminants: A case study on antifungal azoles. ENVIRONMENT INTERNATIONAL 2020; 139:105708. [PMID: 32294573 DOI: 10.1016/j.envint.2020.105708] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 05/26/2023]
Abstract
Environmental risk assessment associated with aquatic and terrestrial contamination is mostly based on predicted or measured environmental concentrations of a limited list of chemicals in a restricted number of environmental compartments. High resolution mass spectrometry (HRMS) can provide a more comprehensive picture of exposure to harmful chemicals, particularly through the retrospective analysis of digitally stored HRMS data. Using this methodology, our study characterized the contamination of various environmental compartments including 154 surface water, 46 urban effluent, 67 sediment, 15 soil, 34 groundwater, 24 biofilm, 41 gammarid and 49 fish samples at 95 sites widely distributed over the Swiss Plateau. As a proof-of-concept, we focused our investigation on antifungal azoles, a class of chemicals of emerging concern due to their endocrine disrupting effects on aquatic organisms and humans. Our results demonstrated the occurrence of antifungal azoles and some of their (bio)transformation products in all the analyzed compartments (0.1-100 ng/L or ng/g d.w.). Comparison of actual and predicted concentrations showed the partial suitability of level 1 fugacity modelling in predicting the exposure to azoles. Risk quotient calculations additionally revealed risk of exposure especially if some of the investigated rivers and streams are used for drinking water production. The case study clearly shows that the retrospective analysis of HRMS/MS data can improve the current knowledge on exposure and the related risks to chemicals of emerging concern and can be effectively employed in the future for such purposes.
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Affiliation(s)
- Nicolas Creusot
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland; INRAE, UR EABX, 50 avenue de Verdun, Gazinet, F-33612 Cestas, France.
| | | | - Aurea Chiaia-Hernandez
- Institute of Geography and Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland
| | - Karin Kiefer
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
| | | | - Qiuguo Fu
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
| | - Nicole Munz
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
| | - Christian Stamm
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
| | - Ahmed Tlili
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
| | - Juliane Hollender
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland.
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Akram M, Patt M, Kaserer T, Temml V, Waratchareeyakul W, Kratschmar DV, Haupenthal J, Hartmann RW, Odermatt A, Schuster D. Identification of the fungicide epoxiconazole by virtual screening and biological assessment as inhibitor of human 11β-hydroxylase and aldosterone synthase. J Steroid Biochem Mol Biol 2019; 192:105358. [PMID: 30965118 DOI: 10.1016/j.jsbmb.2019.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 04/05/2019] [Accepted: 04/06/2019] [Indexed: 12/22/2022]
Abstract
Humans are constantly exposed to a multitude of environmental chemicals that may disturb endocrine functions. It is crucial to identify such chemicals and uncover their mode-of-action to avoid adverse health effects. 11β-hydroxylase (CYP11B1) and aldosterone synthase (CYP11B2) catalyze the formation of cortisol and aldosterone, respectively, in the adrenal cortex. Disruption of their synthesis by exogenous chemicals can contribute to cardio-metabolic diseases, chronic kidney disease, osteoporosis, and immune-related disorders. This study applied in silico screening and in vitro evaluation for the discovery of xenobiotics inhibiting CYP11B1 and CYP11B2. Several databases comprising environmentally relevant pollutants, chemicals in body care products, food additives and drugs were virtually screened using CYP11B1 and CYP11B2 pharmacophore models. A first round of biological testing used hamster cells overexpressing human CYP11B1 or CYP11B2 to analyze 25 selected virtual hits. Three compounds inhibited CYP11B1 and CYP11B2 with IC50 values below 3 μM. The most potent inhibitor was epoxiconazole (IC50 value of 623 nM for CYP11B1 and 113 nM for CYP11B2, respectively); flurprimidol and ancymidol were moderate inhibitors. In a second round, these three compounds were tested in human adrenal H295R cells endogenously expressing CYP11B1 and CYP11B2, confirming the potent inhibition by epoxiconazole and the more moderate effects by flurprimidol and ancymidol. Thus, the in silico screening, prioritization of chemicals for initial biological tests and use of H295R cells to provide initial mechanistic information is a promising strategy to identify potential endocrine disruptors inhibiting corticosteroid synthesis. A critical assessment of human exposure levels and in vivo evaluation of potential corticosteroid disrupting effects by epoxiconazole is required.
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Affiliation(s)
- Muhammad Akram
- Institute of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; Department of Medicinal and Pharmaceutical Chemistry, Institute of Pharmacy, Paracelsus Medical University, Strubergasse 22, 5020, Salzburg, Austria.
| | - Melanie Patt
- Swiss Centre for Applied Human Toxicology and Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland.
| | - Teresa Kaserer
- Institute of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria.
| | - Veronika Temml
- Institute of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria.
| | - Watcharee Waratchareeyakul
- Department of Chemistry, Faculty of Science and Technology, Rambhai Barni Rajabhat University, 22000, Chanthaburi, Thailand.
| | - Denise V Kratschmar
- Swiss Centre for Applied Human Toxicology and Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland.
| | - Joerg Haupenthal
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Universitätscampus E8 1, 66123, Saarbrücken, Germany.
| | - Rolf W Hartmann
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Universitätscampus E8 1, 66123, Saarbrücken, Germany; Department of Pharmaceutical and Medicinal Chemistry, Saarland University, Campus C2.3, 66123, Saarbrücken, Germany.
| | - Alex Odermatt
- Swiss Centre for Applied Human Toxicology and Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland.
| | - Daniela Schuster
- Institute of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; Department of Medicinal and Pharmaceutical Chemistry, Institute of Pharmacy, Paracelsus Medical University, Strubergasse 22, 5020, Salzburg, Austria.
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Tesh SA, Tesh JM, Fegert I, Buesen R, Schneider S, Mentzel T, van Ravenzwaay B, Stinchcombe S. Innovative selection approach for a new antifungal agent mefentrifluconazole (Revysol®) and the impact upon its toxicity profile. Regul Toxicol Pharmacol 2019; 106:152-168. [DOI: 10.1016/j.yrtph.2019.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 04/11/2019] [Accepted: 04/14/2019] [Indexed: 12/11/2022]
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Durenne B, Blondel A, Druart P, Fauconnier ML. Epoxiconazole exposure affects terpenoid profiles of oilseed rape plantlets based on a targeted metabolomic approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17362-17372. [PMID: 31012076 DOI: 10.1007/s11356-019-05110-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Epoxiconazole is a broad-spectrum fungicide described as highly persistent in soil and as such can be considered as an abiotic agent like other problematic agrochemicals. Furthermore, the plant phenotyping tool involving non-invasive monitoring of plant-emitted volatile organic compounds (VOCs) may be useful in the identification of metabolic markers for abiotic stress. We therefore decided to profile the VOCs from secondary metabolism of oilseed rape through a dose-response experiment under several epoxiconazole concentrations (0, 0.01, 0.1 and 1 mg L-1). VOC collections of 35-day-old whole plantlets were performed through a dynamic headspace sampling technique under defined and controlled conditions. The plantlets grew freely within a home-made, laboratory and high-throughput glass chamber without any disturbance. Putative metabolic markers were analysed using a targeted metabolomic approach based on TD-GC-MS method coupled with data acquisition in SIM mode in order to focus on terpenes and sulphur-containing volatiles. Chromatograms of emitted terpenes were achieved accurately for the 35-day-old oilseed rape plantlets. We also analysed the presence of sulphur-containing volatiles in samples of shoot and root tissues using an innovative DHS-TD-GC-MS method, but no difference was found between qualitative profiles. Nevertheless, we demonstrated through this experiment that sesquiterpenes such as β-elemene and (E,E)-α-farnesene are involved in epoxiconazole dose-response. In particular, (E,E)-α-farnesene could serve as a metabolic marker of fungicide exposure for oilseed rape plantlets.
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Affiliation(s)
- Bastien Durenne
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium.
| | - Alodie Blondel
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium
| | - Philippe Druart
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium
| | - Marie-Laure Fauconnier
- General and Organic Chemistry, Gembloux Agro-Bio Tech, University of Liège (ULiège), 5030, Gembloux, Belgium
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Hamdi H, Othmène YB, Ammar O, Klifi A, Hallara E, Ghali FB, Houas Z, Najjar MF, Abid-Essefi S. Oxidative stress, genotoxicity, biochemical and histopathological modifications induced by epoxiconazole in liver and kidney of Wistar rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17535-17547. [PMID: 31025280 DOI: 10.1007/s11356-019-05022-3] [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: 01/10/2019] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Epoxiconazole (EPX) is a triazole fungicide commonly used in agriculture and for domestic purposes around the world. The excessive application of this pesticide may result in a variety of adverse effects on non-target organisms, including humans. Since, the liver and kidneys are the target organs of this fungicide, potential hepatotoxic and nephrotoxic effects are of high relevance. Thus, our study aimed to investigate the toxic effects of EPX on the liver and kidney of Wistar rats. The exposure of rats to EPX at these concentrations (8, 24, 40, 56 mg/kg bw representing, respectively, NOEL (no observed effect level), NOEL × 3, NOEL × 5, and NOEL × 7) for 28 days significantly enhances hepatic and renal lipid peroxidation which is accompanied by an increase in the level of protein oxidation. Furthermore, the results of the present study clearly indicated that EPX administration induces an increase in the levels of DNA damage in a dose-dependent manner. In addition, the activities of liver and kidney antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione S-transferase (GST) are increased significantly in EPX-treated rats at concentrations of 8, 24, and 40 mg/kg bw. However, with the dose NOEL × 7 (56 mg/kg bw of EPX), the activities of CAT, GPx, and GST are decreased. Indeed, EPX-intoxicated rats revealed a significant reduction in acetylcholinesterase (AChE) activity in both liver and kidney compared with the control group. Also, our results demonstrated that the EPX administration leads to a disruption of the hepatic (aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH)) and renal (uric acid and creatinine) functions. The biochemical perturbations obtained in the present study are corroborated with the histopathological modifications. Since EPX treatment caused severe damage in the overall histo-architecture of liver and kidney tissues, these results suggest that administration of EPX induced a marked deregulation of liver and kidney functions. Graphical abstract.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Yosra Ben Othmène
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Oumaima Ammar
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Aida Klifi
- Research Laboratory "Bioressources: Integrative Biology & Valorisation", University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Elhem Hallara
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Faten Ben Ghali
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Zohra Houas
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Mohamec Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
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A sensitive and accurate vortex-assisted liquid-liquid microextraction-gas chromatography-mass spectrometry method for urinary triazoles. J Chromatogr A 2019; 1586:9-17. [DOI: 10.1016/j.chroma.2018.11.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/24/2018] [Accepted: 11/29/2018] [Indexed: 12/22/2022]
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Vašíčková J, Hvězdová M, Kosubová P, Hofman J. Ecological risk assessment of pesticide residues in arable soils of the Czech Republic. CHEMOSPHERE 2019; 216:479-487. [PMID: 30384317 DOI: 10.1016/j.chemosphere.2018.10.158] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/18/2018] [Accepted: 10/21/2018] [Indexed: 06/08/2023]
Abstract
Currently used pesticides (CUPs) represent one of the largest intentional inputs of potentially hazardous compounds into agricultural soils. Subsequently, pesticide residues (PRs) and their transformation products (TPs) persist in agricultural soils, occurring in diverse mixtures of compounds in various concentrations. In this study, measured environmental concentrations (MECs) of CUP residues and TPs, originated from previous growing seasons in agricultural soils of the Czech Republic, were used to characterize the environmental risk for agroecosystems. Toxicity exposure ratios (TERs) were calculated using predicted no-effect concentrations (PNECs) and MECs in order to identify single pesticide residues risk to in-soil invertebrates and microorganisms. Ecological risk assessment (ERA) for the mixtures of pesticide residues at each monitored site was assessed using a risk quotient (RQ) method and considering concentration addition among components in the mixtures. The compilation of ecotoxicity data to derived PNECs for in-soil organisms clearly showed data gaps mainly for triazine and chloroacetanilide TPs. In addition, chronic toxicity data for in-soil invertebrates at different trophic levels are not available for 30% of monitored CUPs. The ERA revealed that pesticide residues in soil pose a risk at 35% of the sites (RQ ≥ 1). Among measured pesticides, epoxiconazole, atrazine-2-hydroxy, carbendazim, dimoxystrobin, terbuthylazine and difenoconazole were the main contributors to the overall pesticide mixture toxicity. The measured levels of epoxiconazole together with the frequent presence in soils represent a risk for the agroecosystems. Further assessment of higher tiers of ERA should be considered and prioritized in the pesticides risk management.
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Affiliation(s)
- Jana Vašíčková
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno, 625 00, Czech Republic
| | - Martina Hvězdová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno, 625 00, Czech Republic
| | - Petra Kosubová
- Central Institute for Supervising and Testing in Agriculture, Hroznová 2, Brno, 656 06, Czech Republic.
| | - Jakub Hofman
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno, 625 00, Czech Republic.
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Nilsen E, Smalling KL, Ahrens L, Gros M, Miglioranza KSB, Picó Y, Schoenfuss HL. Critical review: Grand challenges in assessing the adverse effects of contaminants of emerging concern on aquatic food webs. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:46-60. [PMID: 30294805 DOI: 10.1002/etc.4290] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/24/2018] [Accepted: 10/03/2018] [Indexed: 05/24/2023]
Abstract
Much progress has been made in the past few decades in understanding the sources, transport, fate, and biological effects of contaminants of emerging concern (CECs) in aquatic ecosystems. Despite these advancements, significant obstacles still prevent comprehensive assessments of the environmental risks associated with the presence of CECs. Many of these obstacles center around the extrapolation of effects of single chemicals observed in the laboratory or effects found in individual organisms or species in the field to impacts of multiple stressors on aquatic food webs. In the present review, we identify 5 challenges that must be addressed to promote studies of CECs from singular exposure events to multispecies aquatic food web interactions. There needs to be: 1) more detailed information on the complexity of mixtures of CECs in the aquatic environment, 2) a greater understanding of the sublethal effects of CECs on a wide range of aquatic organisms, 3) an ascertaining of the biological consequences of variable duration CEC exposures within and across generations in aquatic species, 4) a linkage of multiple stressors with CEC exposure in aquatic systems, and 5) a documenting of the trophic consequences of CEC exposure across aquatic food webs. We examine the current literature to show how these challenges can be addressed to fill knowledge gaps. Environ Toxicol Chem 2019;38:46-60. © 2018 SETAC.
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Affiliation(s)
- Elena Nilsen
- US Geological Survey, Oregon Water Science Center, Portland, Oregon, USA
| | - Kelly L Smalling
- US Geological Survey, New Jersey Water Science Center, Lawrenceville, New Jersey, USA
| | - Lutz Ahrens
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Meritxell Gros
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Catalan Institute for Water Research, Girona, Spain
| | - Karina S B Miglioranza
- Laboratory of Ecotoxicology and Environmental Pollution, Mar del Plata University, Mar del Plata, Argentina
| | - Yolanda Picó
- Environmental and Food Safety Research Group, Center of Research on Desertification (CIDe), Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - Heiko L Schoenfuss
- Aquatic Toxicology Laboratory, St. Cloud State University, St. Cloud, Minnesota, USA
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Lopez-Antia A, Ortiz-Santaliestra ME, Mougeot F, Camarero PR, Mateo R. Brood size is reduced by half in birds feeding on flutriafol-treated seeds below the recommended application rate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:418-426. [PMID: 30216876 DOI: 10.1016/j.envpol.2018.08.078] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/03/2018] [Accepted: 08/23/2018] [Indexed: 06/08/2023]
Abstract
Despite the efforts of the European Commission to implement measures that offset the detrimental effects of agricultural intensification, farmland bird populations continue to decline. Pesticide use has been pointed out as a major cause of decline, with growing concern about those agro-chemicals that act as endocrine disruptors. We report here on the effects of flutriafol, a ubiquitous systemic fungicide used for cereal seed treatment, on the physiology and reproduction of a declining gamebird. Captive red-legged partridges (Alectoris rufa; n = 11-13 pairs per treatment) were fed wheat treated with 0%, 20% or 100% of the flutriafol application rate during 25 days in late winter. We studied treatment effects on the reproductive performance, carotenoid-based coloration and cellular immune responsiveness of adult partridges, and their relationship with changes in oxidative stress biomarkers and plasma biochemistry. We also studied the effect of parental exposure on egg antioxidant content and on the survival, growth and cellular immune response of offspring. Exposed partridges experienced physiological effects (reduced levels of cholesterol and triglycerides), phenotypical effects (a reduction in the carotenoid-based pigmentation of their eye rings), and most importantly, severe adverse effects on reproduction: a reduced clutch size and fertile egg ratio, and an overall offspring production reduced by more than 50%. No effects on body condition or cellular immune response of either exposed adult or their surviving offspring were observed. These results, together with previous data on field exposure in wild partridges, demonstrate that seed treatment with flutriafol represents a risk for granivorous birds; they also highlight a need to improve the current regulation system used for foreseeing and preventing negative impacts of Plant Protection Products on wildlife.
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Affiliation(s)
- Ana Lopez-Antia
- Behavioural Ecology and Ecophysiology Group (BECO), Department of Biology, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium; Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071, Ciudad Real, Spain.
| | - Manuel E Ortiz-Santaliestra
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071, Ciudad Real, Spain
| | - François Mougeot
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071, Ciudad Real, Spain
| | - Pablo R Camarero
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071, Ciudad Real, Spain
| | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071, Ciudad Real, Spain
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Šiviková K, Holečková B, Schwarzbacherová V, Galdíková M, Dianovský J. Potential chromosome damage, cell-cycle kinetics/and apoptosis induced by epoxiconazole in bovine peripheral lymphocytes in vitro. CHEMOSPHERE 2018; 193:82-88. [PMID: 29127838 DOI: 10.1016/j.chemosphere.2017.11.008] [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: 09/11/2017] [Revised: 10/23/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Abstract
The epoxiconazole was tested in vitro for its potential on induction of chromosome damage and/or cell cycle kinetics in cultured bovine peripheral lymphocytes. Cytogenetic endpoints such as: Chromosome Aberrations (CA); Sister Chromatid Exchanges (SCE); Micronuclei (MN); Mitotic Index (MI); Proliferation Index (PI); and Cytokinesis Block Proliferation Index (CBPI) were investigated for 24 h and 48 h of incubation. The cultured lymphocytes were exposed to the epoxiconazole at concentrations of 2.5, 5, 10, 25, 50 and 100 μg mL-1. From our results is evident that treatment of bovine peripheral lymphocytes with the epoxiconazole was not related to DNA damage; no genotoxic effect and/or clastogenic/aneugenic effects were recorded. However, epoxiconazole has ability to significantly affect cell cycle kinetics/and induce apoptosis. A decrease of proliferation in the MI, CBPI and identically in the PI were observed; hence, cytostatic/cytotoxic effects of epoxiconazole have been recorded. The prolonged time of exposure at the highest concentration caused an inhibition of the replication. Electrophoretic analysis confirmed the epoxiconazole potential to induce ladder-like patterns of DNA fragments that are a hallmark of apoptosis.
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Affiliation(s)
- Katarína Šiviková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic.
| | - Beáta Holečková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Viera Schwarzbacherová
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Martina Galdíková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Ján Dianovský
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
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Hvězdová M, Kosubová P, Košíková M, Scherr KE, Šimek Z, Brodský L, Šudoma M, Škulcová L, Sáňka M, Svobodová M, Krkošková L, Vašíčková J, Neuwirthová N, Bielská L, Hofman J. Currently and recently used pesticides in Central European arable soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:361-370. [PMID: 28917175 DOI: 10.1016/j.scitotenv.2017.09.049] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/03/2017] [Accepted: 09/06/2017] [Indexed: 05/21/2023]
Abstract
Although large amounts of pesticides are used annually and a majority enters the soil to form short- or long-term residues, extensive soil surveys for currently used pesticides (CUPs) are scarce. To determine the status of CUPs' occurrence in arable land in Central Europe, 51 CUPs and 9 transformation products (TPs) were analysed in 75 arable soils in the Czech Republic (CR) several months after the last pesticide application. Moreover, two banned triazines (simazine and atrazine) and their TPs were analysed because of their frequent detection in CR waters. Multi-residue pesticide analysis on LC-MS/MS after soil QuEChERS extraction was used. The soils contained multiple pesticide residues frequently (e.g. 51% soils with ≥5 pesticides). The levels were also noticeable (e.g. 36% soils with ≥3 pesticides exceeding the threshold of 0.01mg/kg). After triazine herbicides (89% soils), conazole fungicides showed the second most frequent occurrence (73% soils) and also high levels (53% soils with total conazoles above 0.01mg/kg). Frequent occurrence was found also for chloroacetanilide TPs (25% of soils), fenpropidin (20%) and diflufenican (17%). With the exception of triazines' negative correlation to soil pH, no clear relationships were found between pesticide occurrence and soil properties. Association of simazine TPs with terbuthylazine and its target crops proved the frequent residues of this banned compound originate from terbuthylazine impurities. In contrast, frequent atrazine-2-hydroxy residue is probably a legacy of high atrazine usage in the past. The occurrence and levels of compounds were closely associated with their solubility, hydrophobicity and half-life. The results showed links to CR water-monitoring findings. This study represents the first extensive survey of multiple pesticide residues in Central European arable soils, including an insight into their relationships to site and pesticide properties.
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Affiliation(s)
- Martina Hvězdová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Petra Kosubová
- Central Institute for Supervising and Testing in Agriculture, Hroznová 2, Brno 656 06, Czech Republic
| | | | - Kerstin E Scherr
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic; Institute for Environmental Biotechnology, Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Strasse 20, A-3430 Tulln, Austria
| | - Zdeněk Šimek
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Lukáš Brodský
- Department of Applied Geoinformatics and Cartography, Faculty of Science, Charles University in Prague, Albertov 6, Praha 2, 128 43, Czech Republic
| | - Marek Šudoma
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Lucia Škulcová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Milan Sáňka
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Markéta Svobodová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Lucia Krkošková
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Jana Vašíčková
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Natália Neuwirthová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Lucie Bielská
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Jakub Hofman
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic.
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Baker N, Boobis A, Burgoon L, Carney E, Currie R, Fritsche E, Knudsen T, Laffont M, Piersma AH, Poole A, Schneider S, Daston G. Building a developmental toxicity ontology. Birth Defects Res 2018; 110:502-518. [DOI: 10.1002/bdr2.1189] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nancy Baker
- Lockheed Martin, Research Triangle Park; Piedmont North Carolina
| | - Alan Boobis
- Department of Medicine; Imperial College London; London United Kingdom
| | - Lyle Burgoon
- U.S. Army Engineer Research and Development Center; Raleigh-Durham North Carolina
| | | | | | | | - Thomas Knudsen
- U.S. Environmental Protection Agency; Research Triangle Park; Piedmont North Carolina
| | - Madeleine Laffont
- European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC); Brussels Belgium
| | - Aldert H. Piersma
- Center for Health Protection; National Institute for Public Health and the Environment (RIVM), Bilthoven, and Institute for Risk Assessment Sciences (IRAS), Utrecht University; Utrecht The Netherlands
| | - Alan Poole
- European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC); Brussels Belgium
| | | | - George Daston
- Central Product Safety Department; The Procter & Gamble Company; Mason Ohio
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47
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Marolleau B, Gaucher M, Heintz C, Degrave A, Warneys R, Orain G, Lemarquand A, Brisset MN. When a Plant Resistance Inducer Leaves the Lab for the Field: Integrating ASM into Routine Apple Protection Practices. FRONTIERS IN PLANT SCIENCE 2017; 8:1938. [PMID: 29255473 PMCID: PMC5723009 DOI: 10.3389/fpls.2017.01938] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 10/27/2017] [Indexed: 05/09/2023]
Abstract
Plant resistance inducers, also called elicitors, could be useful to reduce the use of pesticides. However, their performance in controlling diseases in the field remains unsatisfactory due to lack of specific knowledge of how they can integrate crop protection practices. In this work, we focused on apple crop and acibenzolar-S-methyl (ASM), a well-known SAR (systemic acquired resistance) inducer of numerous plant species. We provide a protocol for orchard-effective control of apple scab due to the ascomycete fungus Venturia inaequalis, by applying ASM in combination with a light integrated pest management program. Besides we pave the way for future optimization levers by demonstrating in controlled conditions (i) the high influence of apple genotypes, (ii) the ability of ASM to prime defenses in newly formed leaves, (iii) the positive effect of repeated elicitor applications, (iv) the additive effect of a thinning fruit agent.
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Affiliation(s)
- Brice Marolleau
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
| | - Matthieu Gaucher
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
| | - Christelle Heintz
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
| | - Alexandre Degrave
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
| | - Romain Warneys
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
| | - Gilles Orain
- Unité Expérimentale Horticole, INRA, Beaucouzé, France
| | | | - Marie-Noëlle Brisset
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QUASAV, Beaucouzé, France
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48
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Wang Y, Teng M, Wang D, Yan J, Miao J, Zhou Z, Zhu W. Enantioselective bioaccumulation following exposure of adult zebrafish (Danio rerio) to epoxiconazole and its effects on metabolomic profile as well as genes expression. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 229:264-271. [PMID: 28601015 DOI: 10.1016/j.envpol.2017.05.087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/09/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
Although epoxiconazole is the worldwidely used fungicide, limited information is known about its toxic effects and bioaccumulation behavior in freshwater ecosystems. In this study, zebrafish were exposed to epoxiconazole at concentrations of 100 and 1000 μg L-1 for 21 d. 1H NMR-based metabolomics analysis showed that low- and high-dose epoxiconazole exposure resulted in two similar but not identical patterns for the change of endogenous metabolites related to energy, lipid and amino acid metabolism. The expression of genes associated with mitochondrial respiratory chain, ATP synthesis and fatty acid β-oxidation were further measured to explore the reason for the disturbed energy metabolism, finding epoxiconazole had an inhibition effect on the genes expression of the above ways. Significant enantioselectivity was observed with (+)-epoxiconazole enrichment in the bioaccumulation process. These results will be of great importance in understanding the toxic effects induced by epoxiconazole and provide important basis for its comprehensive environmental assessment.
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Affiliation(s)
- Yao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
| | - Miaomiao Teng
- College of Sciences, China Agricultural University, PR China
| | - Dezhen Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
| | - Jin Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
| | - Jiyan Miao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
| | - Wentao Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China.
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Schwarzbacherová V, Wnuk M, Lewinska A, Potocki L, Zebrowski J, Koziorowski M, Holečková B, Šiviková K, Dianovský J. Evaluation of cytotoxic and genotoxic activity of fungicide formulation Tango ® Super in bovine lymphocytes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:255-263. [PMID: 27667677 DOI: 10.1016/j.envpol.2016.09.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 09/13/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
Tango® Super is a two-compound fungicide formulation widely employed in grain protection. However, details of Tango® Super effects on cell cultures have not been fully investigated. In this study, bovine lymphocytes were exposed to a concentration range 0.5; 1.5; 3; 6; and 15 μg mL-1 for 4 h to assess the cytotoxicity and genotoxicity of the fungicide. Our experiments revealed that this fungicide treatment reduced cell viability, decreased cell proliferation and provoked apoptotic cell death. Cell cycle analysis showed predominant accumulation of cells in the G0/G1 phase of the cell cycle. The fungicide was able to induce mitochondrial superoxide production accompanied by elevated levels of carbonylated proteins and changes in the lipid membrane composition. The fungicide did not induce micronuclei production, but stimulated both DNA double-strand breaks and the formation of p53 binding protein, which is accumulated during the DNA repair process at the site of double-strand breaks. Based on the obtained data we suppose that the fungicide-induced DNA damage is the result of oxidative stress, which may contribute to higher occurrence of apoptotic cell death. Because ergosterol biosynthesis-inhibiting fungicides are widely used in agriculture to ensure higher crop yields and may cause health impairment of animals and humans, there is a need for further testing to elucidate their potential genotoxic effects using in vivo and/or in vitro systems.
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Affiliation(s)
- Viera Schwarzbacherová
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic.
| | - Maciej Wnuk
- Department of Genetics, University of Rzeszow, Rejtana 16C, 35-959 Rzeszow, Poland
| | - Anna Lewinska
- Department of Biochemistry and Cell Biology, University of Rzeszow, Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Leszek Potocki
- Department of Genetics, University of Rzeszow, Rejtana 16C, 35-959 Rzeszow, Poland
| | - Jacek Zebrowski
- Department of Plant Physiology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Marek Koziorowski
- Department of Animal Physiology and Reproduction, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Beáta Holečková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
| | - Katarína Šiviková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
| | - Ján Dianovský
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
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50
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Drážovská M, Šiviková K, Holečková B, Dianovský J, Galdíková M, Schwarzbacherová V. Evaluation of potential genotoxic/cytotoxic effects induced by epoxiconazole and fenpropimorph-based fungicide in bovine lymphocytes in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2016; 51:769-776. [PMID: 27428828 DOI: 10.1080/03601234.2016.1198643] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Potential genotoxic/cytotoxic effects of the epoxiconazole/fenpropimorph-based fungicide were investigated using single cell gel electrophoresis and cytogenetic assays: chromosomal aberrations, sister chromatid exchanges, micronuclei and fluorescence in situ hybridization in cultured bovine lymphocytes. No statistically significant elevations of DNA damage and increases in cytogenetic endpoints were seen. However, evident cytotoxic effect presented as a decrease in mitotic and proliferation indices were recorded after exposure of bovine lymphocytes to the fungicide for 24 and 48 h at concentrations ranging from 3 to 15 µg mL(-1) (P < 0.05, P < 0.01, P < 0.001). Similarly, for 24 h an inhibition in the cytokinesis block proliferation index (CBPI) was obtained after exposure to the fungicide at concentrations ranging from 1.5 to 15 µg mL(-1) (P < 0.01, P < 0.001) in each donor.
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Affiliation(s)
- Monika Drážovská
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Katarína Šiviková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Beáta Holečková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Ján Dianovský
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Martina Galdíková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Viera Schwarzbacherová
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
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