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Sanches ALM, da Silva Pinto TJ, Daam MA, Teresa FB, Vieira BH, Reghini MV, de Almeida EA, Espíndola ELG. Isolated and mixed effects of pure and formulated abamectin and difenoconazole on biochemical biomarkers of the gills of Danio rerio. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:106978. [PMID: 38870676 DOI: 10.1016/j.aquatox.2024.106978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024]
Abstract
Pesticides are released into the environment daily, and their effects on nontarget species in aquatic ecosystems have been widely reported. To evaluate the adverse effects caused in adults of Danio rerio species exposed to the pesticides abamectin, difenoconazole, and their commercial formulations (Kraft 36EC® and Score 250EC®), both isolated and in mixtures, biochemical biomarkers were analyzed in the gills of organisms exposed to sublethal concentrations. To this end, the activities of the enzymes 7-ethoxyresorufin-O-deethylase (EROD), glucuronosyltransferase (UDPGT), glutathione-S-transferase (GST), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), lipid hydroperoxide (LH), and malondialdehyde (MDA), which are indicative of oxidative stress, were measured after 48 h of exposure to the different pesticide treatments. The results showed a significant increase in EROD activity and MDA levels in the gills of fish exposed to the commercial formulation of abamectin. When the fish were exposed to difenoconazole and its commercial formulation, an increase in GST, GPx, and MDA levels and a decrease in GR activity were observed in the gills. Furthermore, the responses of the biomarkers were more pronounced in organisms exposed to mixtures of both active ingredients and commercial formulations. It is concluded that the commercial formulations Kraft 36EC® and Score 250EC® and their mixtures cause significant alterations in the detoxification metabolism of exposed organisms and induce oxidative stress in fish.
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Affiliation(s)
- Ana Letícia Madeira Sanches
- Department of Aquaculture and Fisheries Resources, São Paulo State University (UNESP), Registro, São Paulo, Brazil; NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil.
| | - Thandy Junio da Silva Pinto
- University of Campinas (UNICAMP), Institute of Chemistry, Campinas, Rua Josué de Castro, s/n - Cidade Universitária, 13083-970, São Paulo, Brazil
| | - Michiel Adriaan Daam
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil; CENSE - Center for Environmental and Sustainability Research & CHANGE - Global Change and Sustainability Institute, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Fabrício Barreto Teresa
- UEG State University of Goiás, Unit of Exact and Technological Sciences (UnUCET), Anápolis, Goiás, Brazil
| | - Bruna Horvath Vieira
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Marina Vanderlei Reghini
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Science, Fundação Universidade Regional de Blumenau, Blumenau, Santa Catarina, Brazil
| | - Evaldo Luiz Gaeta Espíndola
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
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Horak I, Horn S, Pieters R. The benefit of using in vitro bioassays to screen agricultural samples for oxidative stress: South Africa's case. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 58:689-710. [PMID: 37814453 DOI: 10.1080/03601234.2023.2264739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Applied pesticides end up in non-target environments as complex mixtures. When bioavailable, these chemicals pose a threat to living organisms and can induce oxidative stress (OS). In this article, attention is paid to OS and the physiological role of the antioxidant defense system. South African and international literature was reviewed to provide extensive evidence of pesticide-induced OS in non-target organisms, in vivo and in vitro. Although in vitro approaches are used internationally, South African studies have only used in vivo methods. Considering ethical implications, the authors support the use of in vitro bioassays to screen environmental matrices for their OS potential. Since OS responses are initiated and measurable at lower cellular concentrations compared to other toxicity endpoints, in vitro OS bioassays could be used as an early warning sign for the presence of chemical mixtures in non-target environments. Areas of concern in the country could be identified and prioritized without using animal models. The authors conclude that it will be worthwhile for South Africa to include in vitro OS bioassays as part of a battery of tests to screen environmental matrices for biological effects. This will facilitate the development and implementation of biomonitoring programs to safeguard the South African environment.
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Affiliation(s)
- Ilzé Horak
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Occupational Hygiene and Health Research Initiative, North-West University, Potchefstroom, South Africa
| | - Suranie Horn
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Occupational Hygiene and Health Research Initiative, North-West University, Potchefstroom, South Africa
| | - Rialet Pieters
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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Gonçalves BR, Della-Flora A, Sirtori C, Sousa RMF, V M Starling MC, Sánchez Pérez JA, Saggioro EM, Sales Junior SF, Trovó AG. Influence of water matrix components and peroxide sources on the transformation products and toxicity of tebuthiuron under UVC-based advanced oxidation processes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160120. [PMID: 36370797 DOI: 10.1016/j.scitotenv.2022.160120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/28/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Coupling of UV-C irradiation to different peroxides (H2O2, S2O82- and HSO5-) has great potential to degrade persistent organic compounds due to the formation of HO• or SO4•- species. However, an in-depth comparison between the performance of different UV-C/peroxide processes as a function of (i) target compound degradation, (ii) generated transformation products and (iii) lethal/sub lethal toxicity effects has not yet been performed. To this end a comparison study was carried out to evaluate the effectiveness of different UV-C/peroxide processes using the herbicide tebuthiuron (100 or 500 μg L-1) as a model pollutant. TBH degradation experiments were performed at lab-scale in real municipal wastewater treatment plant effluent and distilled water. Faster degradation occurred by increasing peroxide concentration from 735 to 2206 μmol L-1 in the municipal wastewater treatment plant effluent, mainly for S2O82-. Experiments performed in the presence of peroxide trapping agents - HO• and SO4•- (methoxibenzene) or HO• (2-propanol) - revealed that oxidation in the UV-C/S2O82- system occurs mainly through SO4•-. Lower toxicity for the MWWTP effluent was obtained after oxidative treatments using hydrogen peroxide or monopersulfate as oxidants which react mainly through HO• radicals. Two mechanistic pathways were proposed for tebuthiuron degradation: (i) hydrogen abstraction by HO• (H2O2 and HSO5-) and (ii) electron transfer by SO4•- (S2O82-). In addition, one unprecedented transformation product was identified. In conclusion, results emphasize the relevance of comparing the degradation of toxic compounds in the presence of different peroxide sources and matrices and simultaneouly evaluating responses chemical and biological endpoints.
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Affiliation(s)
- Bárbara R Gonçalves
- Universidade Federal de Uberlândia, Instituto de Química, 38400-902 Uberlândia, MG, Brazil
| | - Alexandre Della-Flora
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, RS, Brazil
| | - Carla Sirtori
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, RS, Brazil
| | - Raquel M F Sousa
- Universidade Federal de Uberlândia, Instituto de Química, 38400-902 Uberlândia, MG, Brazil
| | - Maria Clara V M Starling
- Universidade Federal de Minas Gerais, Departamento de Engenharia Sanitária e Ambiental, 31270-010 Belo Horizonte, MG, Brazil
| | - José Antonio Sánchez Pérez
- Solar Energy Research Centre (CIESOL), University of Almería, Ctra. de Sacramento s/n, Almería ES04120, Spain
| | - Enrico M Saggioro
- Environmental Health Evaluation and Promotion Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Brasil Ave., 21045-900 Rio de Janeiro, RJ, Brazil
| | - Sidney F Sales Junior
- Post-graduation Program in Public Health and Environment, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, 1480 Leopoldo Bulhões Ave., 21041-210 Rio de Janeiro, RJ, Brazil
| | - Alam G Trovó
- Universidade Federal de Uberlândia, Instituto de Química, 38400-902 Uberlândia, MG, Brazil; Solar Energy Research Centre (CIESOL), University of Almería, Ctra. de Sacramento s/n, Almería ES04120, Spain.
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Nam SE, Haque MN, Do SD, Rhee JS. Chronic effects of environmental concentrations of antifoulant diuron on two marine fish: Assessment of hormone levels, immunity, and antioxidant defense system. Comp Biochem Physiol C Toxicol Pharmacol 2023; 263:109510. [PMID: 36368506 DOI: 10.1016/j.cbpc.2022.109510] [Citation(s) in RCA: 2] [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: 05/31/2022] [Revised: 10/28/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
The presence and toxicity of waterborne diuron in aquatic environments pose a severe threat to non-target organisms. However, the chronic impact of diuron in marine fish has been poorly investigated. In this study, we report the chronic effects (30 and 60 days) of environmentally relevant concentrations of diuron (0.1, 1, and 10 μg L-1) on economically important marine fish, red seabream (Pagrus major), and black rockfish (Sebastes schlegelii) by evaluating several parameters, including hormone levels, immunity, hepatic function, and antioxidant defense. Significant decreases in 17β-estradiol and 11-ketotestosterone levels and gonadosomatic index were observed on day 60 in fish exposed to 10 μg L-1 diuron. Parameters of immunity, such as alternative complement activity, lysozyme activity, and total immunoglobulin levels, were significantly lowered by 60-day exposure to 10 μg L-1 diuron in both fish. Significant decreases in the hepatic enzyme activities of alanine transaminase and aspartate transaminase were observed with an induction of cortisol on day 60 in fish exposed to 10 μg L-1 diuron. Intracellular malondialdehyde and glutathione levels were significantly increased by 10 μg L-1 diuron at day 60 with an increase in the enzymatic activities of catalase and superoxide dismutase. Overall, black rockfish were more sensitive to diuron than red seabream. These results suggest that consistent exposure to environmentally relevant concentrations of diuron is detrimental to the reproduction, immunity, and health of marine fish.
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Affiliation(s)
- Sang-Eun Nam
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Md Niamul Haque
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Seong Duk Do
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Jae-Sung Rhee
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea; Yellow Sea Research Institute, Incheon 22012, Republic of Korea.
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Wang XD, Zhang CY, Yuan Y, Hua YF, Asami T, Qin Y, Xiong XH, Zhu JL, Lu YC. Molecular Responses and Degradation Mechanisms of the Herbicide Diuron in Rice Crops. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14352-14366. [PMID: 36326728 DOI: 10.1021/acs.jafc.2c05142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Diuron [DU; 3-(3,4-dichlorophenyl)-1,1-dimethylurea], a widely used herbicide for weed control, arouses ecological and health risks due to its environment persistence. Our findings revealed that DU at 0.125-2.0 mg L-1 caused oxidative damage to rice. RNA-sequencing profiles disclosed a globally genetic expression landscape of rice under DU treatment. DU mediated downregulated gene encoding photosynthesis and biosynthesis of protein, fatty acid, and carbohydrate. Conversely, it induced the upregulation of numerous genes involved in xenobiotic metabolism, detoxification, and anti-oxidation. Furthermore, 15 DU metabolites produced by metabolic genes were identified, 7 of which include two Phase I-based and 5 Phase II-based derivatives, were reported for the first time. The changes of resistance-related phytohormones, like JA, ABA, and SA, in terms of their contents and molecular-regulated signaling pathways positively responded to DU stress. Our work provides a molecular-scale perspective on the response of rice to DU toxicity and clarifies the biotransformation and degradation fate of DU in rice crops.
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Affiliation(s)
- Xiao Dong Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Chen Yi Zhang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Yi Yuan
- Horticultural Research Institute, Yunnan Academy of Agricultural Sciences, Kunming650205, China
| | - Yi Fei Hua
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Tadao Asami
- Department of Applied Biological Chemistry, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo113-8657, Japan
| | - Yi Qin
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Xiao Hui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Jian Liang Zhu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
| | - Yi Chen Lu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing211816, China
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Shim KY, Sukumaran V, Yeo IC, Shin H, Jeong CB. Effects of atrazine and diuron on life parameters, antioxidant response, and multixenobiotic resistance in non-targeted marine zooplankton. Comp Biochem Physiol C Toxicol Pharmacol 2022; 258:109378. [PMID: 35605931 DOI: 10.1016/j.cbpc.2022.109378] [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: 03/28/2022] [Revised: 05/02/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022]
Abstract
Atrazine and diuron are among the most widely used antifoulant biocides in the world. Due to their persistence in the environment, they can induce adverse effects on non-targeted organisms. In this study, we investigated the chronic in vivo toxicity of atrazine and diuron with further assessments on oxidative stress responses (e.g., oxidative stress, antioxidant) and multixenobiotic resistance (MXR) function in the rotifer Brachionus koreanus, a non-targeted microzooplanktonic grazer at the primary level of the marine food chain. Although similar oxidative response was shown by both biocides, diuron induced stronger retardation on reproduction and population growth rates of B. koreanus while moderate effects were observed by atrazine. This higher toxicity of diuron was shown to be associated with its stronger inhibition of MXR conferred by P-glycoprotein and multidrug resistance proteins which play as a first line of defense by transporting various toxicants out of a cell. Our study provides new insight into non-targeted effects of biocides on marine zooplankton and mechanisms beyond their different degrees of toxicity.
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Affiliation(s)
- Kyu-Young Shim
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea
| | - Vrinda Sukumaran
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea
| | - In-Cheol Yeo
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea
| | - Heesang Shin
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea
| | - Chang-Bum Jeong
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea.
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7
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Composition of bacterial community and isolation of bacteria responsible for diuron degradation in sediment and soil under anaerobic condition. Arch Microbiol 2022; 204:418. [PMID: 35737117 DOI: 10.1007/s00203-022-03040-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/02/2022]
Abstract
The herbicide diuron is extensively used in the agriculture sector and is detected widely in the environment. Although several studies on the degradation of diuron by aerobic microorganisms have been reported, the degradation of diuron by anaerobic microorganisms has not been received much attention. Also, no pure culture that can degrade diuron under anaerobic conditions has yet been reported. The evaluation of diuron degradation in the soil and sediment slurries showed that diuron led to a decrease in the biodiversity of the bacterial communities. Two mixed bacterial cultures, one from the soil and the other from sediment slurries, were isolated from the enrichment media under anaerobic conditions. After 30 days of incubation at 30 °C, the mixed bacterial culture from the soil degraded 84.5 ± 5.5%, and that from the sediment slurry degraded 94.5 ± 3.0% of diuron in liquid mineral medium at an initial concentration of 20 mg/L. 1-(3,4-dichlorophenylurea (DCPU), 3-(3-chlorophenyl)-1,1-dimethylurea (CPDMU), and 3,4-dichloroaniline (3,4-DCA) were the major diuron metabolites produced by both the indigenous microorganisms and the isolated bacteria.
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8
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Zaluski AB, Wiprich MT, de Almeida LF, de Azevedo AP, Bonan CD, Vianna MRM. Atrazine and Diuron Effects on Survival, Embryo Development, and Behavior in Larvae and Adult Zebrafish. Front Pharmacol 2022; 13:841826. [PMID: 35444550 PMCID: PMC9014172 DOI: 10.3389/fphar.2022.841826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/15/2022] [Indexed: 12/03/2022] Open
Abstract
Atrazine and Diuron are widely used herbicides. The use of pesticides contaminates the aquatic environment, threatening biodiversity and non-target organisms such as fish. In this study, we investigated the effects of acute exposure for 96 h hours to atrazine and diuron commercial formulations in zebrafish (Danio rerio, wild-type AB) embryos and larvae and adult stages. We observed a significant concentration-dependent survival decrease and hatching delays in animals exposed to both herbicides and in the frequency of malformations compared to the control groups. Morphological defects included cardiac edema, tail reduction, and head malformation. At 7 days post-fertilization (dpf), atrazine exposure resulted in a reduction in the head length at 2, 2.5, and 5 mg/L and increased the ocular distance at 1, 2, 2.5, and 5 mg/L atrazine when compared to controls. At the same age, diuron increased the ocular distance in animals exposed to diuron (1.0 and 1.5 mg/L) and no effects were observed on the head length. We also evaluated a behavioral repertoire in larvae at 7 dpf, and there were no significant differences in distance traveled, mean speed, time in movement, and thigmotaxis for atrazine and diuron when animals were individually placed in a new environment. The cognitive ability of the larvae was tested at 7 dpf for avoidance and optomotor responses, and neither atrazine nor diuron had significant impacts when treated groups were compared to their corresponding controls. Adults’ behavior was evaluated 7 and 8 days after the end of the acute herbicide exposure. Exploration of a new environment and associated anxiety-like parameters, social interaction, and aggressiveness were not altered. Our results highlight the need for further studies on the sublethal effects of both herbicides and the consideration of the effects of commercial formulas vs. isolated active ingredients. It also emphasizes the need to take sublethal effects into consideration when establishing the environmental limits of residues.
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Affiliation(s)
- Amanda B Zaluski
- Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Melissa T Wiprich
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luiza F de Almeida
- Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Andressa P de Azevedo
- Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carla D Bonan
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Monica R M Vianna
- Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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Iheanacho SC, Adeolu AI, Nwose R, Ekpenyong J, Offu P, Amadi-Eke A, Iheanacho AC, Ogunji J. Genotoxicity, oxidative stress and lysozyme induction in Clarias gariepinus chronically exposed to water-soluble fraction of burnt tire ash. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1983-1996. [PMID: 34529204 DOI: 10.1007/s10646-021-02474-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
The safety of aquatic ecosystems has been compromised by numerous anthropogenic activities, especially leachates from non-point source toxicants, leaching into aquatic systems. This study evaluated the toxicity of the water-soluble fractions (WSFs) of burnt tire ash (BTA) on Clarias gariepinus via a battery of integrated biomarkers. Juvenile C. gariepinus were exposed to sublethal (0.56, 1.12, and 2.24 g/L) concentrations of BTA, derived from 11.2 g/L median lethal concentration (96 LC50), at duration intervals of 1, 14, and 28 days, followed by a recovery trial that lasted for 14 days. Serum biochemical parameters, antioxidant enzyme activities of the gill and liver, lysozymes activity and erythron profile were assessed. The findings of the present study revealed that BTA-WSF induced prominent alterations on biochemical parameters, lysozymes activity and antioxidant enzymes activities in the exposed fish. Furthermore, toxicant exposure promoted oxidative stress, cellular damage and genotoxicity (erythrocytic nuclear and cellular abnormalities) in the exposed fish. In general, a post-exposure trial showed partial recovery from the exposure effects of the toxicant, following the evident modifications of serum enzymes and erythron pathopathology in the experimental model. Biomonitoring of BTA, using sentinel aquatic species such as C. gariepinus, provides insights into the ecotoxicological potency of this toxicant.
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Affiliation(s)
- Stanley C Iheanacho
- Department of Fisheries and Aquaculture, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria.
- Department of Zoology and Environmental Biology, University of Nigeria Nsukka, Enugu, Nigeria.
| | - Adewale I Adeolu
- Department of Agriculture, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria
| | - Roseline Nwose
- Department of Agriculture, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria
| | - Joshua Ekpenyong
- Department of Fisheries and Aquaculture, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria
| | - Peter Offu
- Department of Political Science, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria
| | - Akunna Amadi-Eke
- Department of Fisheries and Aquaculture Technology, Federal University of Technology Owerri, Imo, Nigeria
| | - Angus C Iheanacho
- Department of Pure and Industrial Chemistry, University of Nigeria Nsukka, Enugu, Nigeria
| | - Johnny Ogunji
- Department of Fisheries and Aquaculture, Alex Ekwueme Federal University Ndufu Alike, Ebonyi, Nigeria
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Wu M, Li G, Li P, Jiang N, Wei S, Petropoulos E, Li Z. Assessing the ecological risk of pesticides should not ignore the impact of their transformation byproducts - The case of chlorantraniliprole. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126270. [PMID: 34102368 DOI: 10.1016/j.jhazmat.2021.126270] [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: 01/27/2021] [Revised: 05/10/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
Risk assessments for pesticides typically focus on the compound itself ignoring the impact of its transformation byproducts. Challenges in isolating such byproducts (i.e. after application of pesticide in soil) often lead to underestimation of the real risk from such substances. The toxicological properties of these byproducts may differ from those of the parent pesticides; hence, special attention is required for these new emerging contaminants. In this study, two transformation byproducts of chlorantraniliprole were isolated from soil and identified, using nuclear magnetic resonance and high resolution mass spectrometry, as products of dechlorination (Z1) and bromination (Z2). Kinetic experiments revealed both byproducts degrade faster than chlorantraniliprole in soil (half-lives 38 & 43 d vs. 58 d). The ecological risk evaluation of chlorantraniliprole and its byproducts on soil bacterial community showed that they were all potentially harmful but they imposed different impacts on both alpha and beta diversities and co-occurrence networks of the bacterial community. Z2 had the biggest potential impact on soil bacteria and accounted as a high potential risk. By comparing their impacts on soil bacterial community, we confirm that ecological risk assessment necessitates the understanding of the environmental impacts of a substance as well as of its transformation byproducts.
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Affiliation(s)
- Meng Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Guilong Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Pengfa Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Nan Jiang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Shiping Wei
- Jiangsu Engineering and Technology Center for Modern Horticulture, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, Jiangsu 212400, PR China
| | | | - Zhongpei Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China.
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Li J, Zhang W, Lin Z, Huang Y, Bhatt P, Chen S. Emerging Strategies for the Bioremediation of the Phenylurea Herbicide Diuron. Front Microbiol 2021; 12:686509. [PMID: 34475856 PMCID: PMC8406775 DOI: 10.3389/fmicb.2021.686509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/16/2021] [Indexed: 02/04/2023] Open
Abstract
Diuron (DUR) is a phenylurea herbicide widely used for the effective control of most annual and perennial weeds in farming areas. The extensive use of DUR has led to its widespread presence in soil, sediment, and aquatic environments, which poses a threat to non-target crops, animals, humans, and ecosystems. Therefore, the removal of DUR from contaminated environments has been a hot topic for researchers in recent decades. Bioremediation seldom leaves harmful intermediate metabolites and is emerging as the most effective and eco-friendly strategy for removing DUR from the environment. Microorganisms, such as bacteria, fungi, and actinomycetes, can use DUR as their sole source of carbon. Some of them have been isolated, including organisms from the bacterial genera Arthrobacter, Bacillus, Vagococcus, Burkholderia, Micrococcus, Stenotrophomonas, and Pseudomonas and fungal genera Aspergillus, Pycnoporus, Pluteus, Trametes, Neurospora, Cunninghamella, and Mortierella. A number of studies have investigated the toxicity and fate of DUR, its degradation pathways and metabolites, and DUR-degrading hydrolases and related genes. However, few reviews have focused on the microbial degradation and biochemical mechanisms of DUR. The common microbial degradation pathway for DUR is via transformation to 3,4-dichloroaniline, which is then metabolized through two different metabolic pathways: dehalogenation and hydroxylation, the products of which are further degraded via cooperative metabolism. Microbial degradation hydrolases, including PuhA, PuhB, LibA, HylA, Phh, Mhh, and LahB, provide new knowledge about the underlying pathways governing DUR metabolism. The present review summarizes the state-of-the-art knowledge regarding (1) the environmental occurrence and toxicity of DUR, (2) newly isolated and identified DUR-degrading microbes and their enzymes/genes, and (3) the bioremediation of DUR in soil and water environments. This review further updates the recent knowledge on bioremediation strategies with a focus on the metabolic pathways and molecular mechanisms involved in the bioremediation of DUR.
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Affiliation(s)
- Jiayi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Wenping Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Ziqiu Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Yaohua Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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12
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Zhou Y, Han X, Bao Y, Zhu Z, Huang J, Yang C, He C, Zuo Z. Chronic exposure to environmentally realistic levels of diuron impacts the behaviour of adult marine medaka (Oryzias melastigma). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 238:105917. [PMID: 34333370 DOI: 10.1016/j.aquatox.2021.105917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 05/28/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Diuron, a commonly used herbicide and antifouling biocide, has been frequently detected in seawater. The effects of diuron on fish behaviour are currently poorly understood. Herein, the marine medaka (Oryzias melastigma) was continuously exposed to environmentally realistic levels of diuron from the fertilised egg stage to the adult stage. Behavioural evaluation of adult marine medaka indicated that exposure to diuron increased anxiety in the light-dark test and increased predator avoidance. In addition, diuron exposure significantly reduced aggression, social interaction, shoaling, and learning and memory ability. However, only negligible variations in foraging behaviour and in behaviour in the novel tank test were observed. Marine medaka chronically exposed to diuron also showed decreased levels of dopamine in the brain, and changes were observed in the transcription of genes related to dopamine synthesis, degradation and receptors. Exposure to 5000 ng/L diuron caused significant downregulation of the expression of the genes of tyrosine hydroxylase and monoamine oxidase and significantly upregulated the expression of the genes of the D5 dopaminergic receptor. The relative expression of the D4 dopaminergic receptor was significantly upregulated in the 50, 500 and 5000 ng/L diuron-treated groups. These findings highlight the significant neurotoxic effects of diuron and the extent to which this may involve the dopaminergic system of the brain. More broadly, this study reveals the ecological risk associated with environmentally realistic levels of diuron in marine animals.
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Affiliation(s)
- Yixi Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xue Han
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yuanyuan Bao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Zihan Zhu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jiali Huang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chunyan Yang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chengyong He
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
| | - Zhenghong Zuo
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian 361102, China.
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13
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Marins AT, Severo ES, Cerezer C, Leitemperger JW, Müller TE, Floriano L, Prestes OD, Zanella R, Loro VL. Environmentally relevant pesticides induce biochemical changes in Nile tilapia (Oreochromis niloticus). ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:585-598. [PMID: 33770304 DOI: 10.1007/s10646-021-02368-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
The high demand for food consequently increases the entry of agricultural residues into water resources, and this phenomenon can affect non-target organisms in different ways. Environmentally relevant pesticide effects (per se or in combinations) are scarce in the scientific literature. Therefore, the aim of this study was to investigate: (1) the presence of pesticide residues in an important Brazilian source of water supply and power generation (Jacuí river), during 1 year of monitoring. (2) in a laboratory study verify the effects of the most frequently, herbicide, fungicide, and insecticide found in Jacuí river (individualized or in a mixture) on biochemical parameters in different tissues of Oreochromis niloticus. Twenty pesticide residues were detected in superficial water samples, and two of them are banned in Brazilian territory. Atrazine (0.56 µg L-1), azoxystrobin (0.024 µg L-1), and imidacloprid (0.11 µg L-1) were the most frequently herbicide, fungicide, and insecticide, respectively, found in the river and were used in the laboratory assay. O. niloticus exposed to the pesticide mixture exhibited more biochemical effects than individualized exposure groups. This response can be a result of the combined pesticide effects, culminating in an additive or synergistic effect, depending on the biomarker. In individual exposure groups, atrazine presented the most pronounced alterations, followed by azoxystrobin and imidacloprid. Overall, pesticide exposure increased levels of oxidative stress parameters, reduced antioxidant enzyme activities, and induced acetylcholinesterase activity. These findings highlight the threat to aquatic organisms which may be exposed to a miscellaneous of toxic compounds in the environment.
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Affiliation(s)
- Aline Teixeira Marins
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
- Laboratório de Toxicologia Aquática, Labtaq, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Eduardo Stringini Severo
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
- Laboratório de Toxicologia Aquática, Labtaq, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Cristina Cerezer
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
- Laboratório de Toxicologia Aquática, Labtaq, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Jossiele Wesz Leitemperger
- Laboratório de Toxicologia Aquática, Labtaq, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Talise Ellwanger Müller
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Luana Floriano
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Osmar Damian Prestes
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Renato Zanella
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - Vania Lucia Loro
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
- Laboratório de Toxicologia Aquática, Labtaq, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
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14
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Evaluation of Multivariate Biomarker Indexes Application in Ecotoxicity Tests with Marine Diatoms Exposed to Emerging Contaminants. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11093878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Worldwide anthropogenic activities result in the production and release of potentially damaging toxic pollutants into ecosystems, thereby jeopardizing their health and continuity. Research studies and biomonitoring programs attend to this emerging problematic by applying and developing statistically relevant indexes that integrate complex biomarker response data to provide a holistic approach, reflecting toxically induced alterations at the organism or population level. Ultimately, indexes allow simple result communications, enhancing policy makers understanding, and contributing to better resource and environmental managing policies. In this study three indexes, the integrated biomarker response index (IBR), the bioeffects assessment index (BAI) and principal components analysis (PCA), were evaluated for their sensitivity in revealing toxically induced stress patterns in cells of the diatom Phaeodactylum tricornutum under contaminant exposure. The set of biomarkers selected for index construction comprised the anti-oxidant enzymes APX, CAT and SOD, and the lipid peroxidation marker TBARS. Several significant correlations with the applied concentration gradients were noticed for all indexes, although IBR excelled for its reliability in delivering statistically significant dose-response patterns for four out of the five tested compounds.
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15
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Marins AT, Cerezer C, Leitemperger JW, Severo ES, Costa MD, Fontoura DO, Nunes MEM, Ribeiro LC, Zanella R, Loro VL. A mixture of pesticides at environmental concentrations induces oxidative stress and cholinergic effects in the neotropical fish Rhamdia quelen. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:164-174. [PMID: 33196985 DOI: 10.1007/s10646-020-02300-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/22/2020] [Indexed: 05/21/2023]
Abstract
The insecticides imidacloprid (IMI), a neonicotinoid, and propoxur (PRO), an N-methylcarbamate compound, are pesticides widely used throughout the world. Although they are not used together to combat pests, both are often found in freshwater near agricultural areas. Thereby, the goal of this study was to evaluate the additive effects of IMI and PRO mixtures at environmental concentrations in relation to isolated compounds on Rhamdia quelen, a neotropical fish. The fish was exposed to IMI (0.11 µg/L), PRO (0.039 µg/L), or Mix (0.11 µg/L IMI plus 0.039 µg/L PRO) during 96 h. Glutathione S-transferase (GST), superoxide dismutase (SOD), catalase (CAT), acetylcholinesterase (AChE) activities were determined. To verify oxidative damage thiobarbituric acid reactive substances (TBARS), protein carbonyl (PC), reactive oxygen species contents (ROS), antioxidant capacity against peroxides (ACAP) were determined in gills, liver, brain and muscle. The results shows that a mixture of these pesticides at environmental concentrations inhibited acetylcholinesterase activity in the brain and induced oxidative damage in all analyzed tissues. These results reinforce the hypothesis that mixture of contaminants present in environment could induce additive or synergistic effects on fish species.
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Affiliation(s)
- Aline Teixeira Marins
- Programa de Pós-Graduação em Biodiversidade Animal, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Cristina Cerezer
- Programa de Pós-Graduação em Biodiversidade Animal, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Jossiele Wesz Leitemperger
- Programa de Pós-Graduação em Ciências Biológicas-Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, LABTAQ, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Eduardo Stringini Severo
- Programa de Pós-Graduação em Biodiversidade Animal, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Maiara Dorneles Costa
- Programa de Pós-Graduação em Ciências Biológicas-Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, LABTAQ, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Danielle Ortiz Fontoura
- Programa de Pós-Graduação em Ciências Biológicas-Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, LABTAQ, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Mauro Eugenio Medina Nunes
- Programa de Pós-Graduação em Ciências Biológicas-Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, LABTAQ, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Lucila Cendon Ribeiro
- Laboratório de Análise de Resíduos de Pesticidas, LARP, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Renato Zanella
- Laboratório de Análise de Resíduos de Pesticidas, LARP, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Vania Lucia Loro
- Programa de Pós-Graduação em Biodiversidade Animal, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil.
- Programa de Pós-Graduação em Ciências Biológicas-Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, LABTAQ, Universidade Federal de Santa Maria, Santa Maria, Brazil.
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16
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Freitas JS, Pereira TSB, Boscolo CNP, Garcia MN, de Oliveira Ribeiro CA, de Almeida EA. Oxidative stress, biotransformation enzymes and histopathological alterations in Nile tilapia (Oreochromis niloticus) exposed to new and used automotive lubricant oil. Comp Biochem Physiol C Toxicol Pharmacol 2020; 234:108770. [PMID: 32335231 DOI: 10.1016/j.cbpc.2020.108770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/02/2020] [Accepted: 04/18/2020] [Indexed: 10/24/2022]
Abstract
Lubricant oils are among oil-based products that are not fully consumed during its use, thereby producing non-biodegradable residues which can cause contamination of natural systems. This study evaluated the toxicity of new and used lubricating oil (0.01 and 0.1 mL L-1) in adult Nile tilapia (Oreochromis niloticus), by assessing the effects on oxidative stress, biotransformation enzymes (liver and gills), and histopathological alterations on hepatic and pancreatic tissues after 3 and 7 days of exposure. Results showed that 3-days exposure to 0.1 mL L-1 of used and new lubricating oil increased the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) levels in liver of O. niloticus, respectively. In gills, catalase (CAT) was decreased in fish exposed to 0.1 mL L-1 of non-used oil after 3 days, but pronounced increases in CAT was detected after 7 days-exposure to both new and used oil. Shorter exposure to both concentrations of new and used oil also raised glutathione-S-transferase activity (GST) in gills. Ethoxyresorufin-O-deethylase (EROD) was induced in liver of fish exposed to 0.1 mL L-1of used oil after 3 and 7 days, however a reduced response of this enzyme was detected in gills of animals from both oil treatments. In vitro analysis showed that hepatic EROD was inhibited by lubricating oil exposures, with more pronounced responses in treatments containing used oil. Hepatic lesions, such as cytoplasmic vacuolization, nuclei abnormally, changes in hepatocytes shape, steatosis, cholestasis, eosinophilic inclusions and necrosis were mainly increased by 7 days exposure to used lubricating oil at higher concentration.
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Affiliation(s)
- Juliane Silberschmidt Freitas
- Department of Biology, Minas Gerais State University (UEMG), R. Ver. Geraldo Moisés da Silva, s/n - Universitário, 38302-192 Ituiutaba, MG, Brazil
| | - Thiago Scremin Boscolo Pereira
- UNIRP - University Center of Rio Preto, São José do Rio Preto, SP, Brazil; FACERES - Morfofunctional Laboratory, FACERES Medical School, São José do Rio Preto, SP, Brazil
| | | | - Mariana Navarro Garcia
- Department of Chemistry and Environmental Science, Universidade Estadual Paulista (IBILCE/UNESP), R. Critóvão Colombo, 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | | | - Eduardo Alves de Almeida
- Department of Natural Sciences, Fundação Universidade Regional de Blumenau, Av. Antonio da Veiga 140, Itoupava Seca, 89030-903 Blumenau, Santa Catarina, Brazil.
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17
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Garcia D, Lima D, da Silva DGH, de Almeida EA. Decreased malondialdehyde levels in fish (Astyanax altiparanae) exposed to diesel: Evidence of metabolism by aldehyde dehydrogenase in the liver and excretion in water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110107. [PMID: 31901814 DOI: 10.1016/j.ecoenv.2019.110107] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 12/07/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Increased malondialdehyde (MDA) levels are commonly considered an indicator of lipid peroxidation derived from oxidative stress insults promoted by exposure of fish to pollutants. However, a decrease in MDA levels after xenobiotic exposure has been also reported, an effect that is mostly attributed to enhanced antioxidant defenses. In this study, we assessed whether pollutant-mediated MDA decrease would be associated with antioxidant enhancement or with its metabolism by aldehyde dehydrogenase (ALDH) in the liver and gills of lambari (Astyanax altiparanae) exposed to diesel oil (0.001, 0.01, and 0.1 mL/L). MDA levels were decreased in the liver of lambari exposed to diesel. The activities of the antioxidant enzymes, catalase (CAT) and glutathione peroxidase (GPx), were unchanged in the liver, while that of glucose-6-phosphate dehydrogenase (G6PDH) was decreased. In contrast, levels of total glutathione (tGSH) and the activity of glutathione S-transferase (GST) were increased in the liver, which partly support antioxidant protection against lipid peroxidation. More importantly, ALDH activity increased in a concentration-dependent manner, being negatively correlated with MDA levels, indicating MDA metabolism by ALDH. In the gills, diesel exposure increased MDA and lipid hydroperoxide levels, and promoted increases in antioxidant defenses, indicating oxidative stress. Curiously, ALDH activity was undetectable in the gills, supporting the possibility of direct MDA excretion in the water by the gills. Analyses of MDA in the water revealed increased levels of MDA in the aquaria in which the fish were exposed to diesel, compared to control aquaria. A second experiment was carried out in which the fish were intraperitoneally injected with MDA (10 mg/kg) and analyzed after 1, 6, and 12 h. MDA injection caused a time-dependent decrease in hepatic MDA levels, did not alter ALDH, CAT, GPx, and GST activities, and decreased G6PDH activity and tGSH levels. In the gills, MDA injection caused a slight increase in MDA levels after 1 h, but did not alter GPx, G6PDH, and GST activities. MDA injection also enhanced CAT activity and tGSH levels in the gills. MDA concentration in water increased progressively after 1, 6, and 12 h, supporting the hypothesis of direct MDA excretion as an alternative route for MDA elimination in fish. Our results suggest that the decreased MDA levels after exposure of lambari to diesel oil pollutant probably reflects an association between enhanced antioxidant protection, MDA metabolism, and MDA excretion in water.
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Affiliation(s)
- Danielly Garcia
- UNESP - Sao Paulo State University, Department of Chemistry and Environmental Sciences, São Paulo, Brazil
| | - Daína Lima
- UFSC - Federal University of Santa Catarina, Department of Biochemistry, Florianópolis, SP, Brazil
| | | | - Eduardo Alves de Almeida
- FURB - Fundação Universidade Regional de Blumenau, Department of Natural Sciences, Blumenau, SC, Brazil.
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18
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Romero IA, van Dillewijn P, Nesme J, Sørensen SJ, Romero E. Improvement of pesticide removal in contaminated media using aqueous extracts from contaminated biopurification systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:749-759. [PMID: 31325872 DOI: 10.1016/j.scitotenv.2019.07.087] [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: 04/30/2019] [Revised: 07/02/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
Despite certain limitations, bioaugmentation enhances the efficiency of bioremediation systems. In this study, three aqueous extracts (APE, ACE and APE) from aged residual biomixtures in three biopurification systems (BPSs) exposed to pesticides at a pilot scale were found to improve pesticide removal. The addition of ACEs and AVEs to solutions containing the model compound diuron increased removal rates 6- and 17-fold, respectively, as compared to APEs. These extracts also increased the removal of the metabolite 3,4-dichloroaniline, while AVEs, in particular, were found to remove all pesticides within 9 days. Three metabolites less hazardous than 3,4-dichloroaniline were identified by SPME/GC/MS. AVEs, which also enhance linuron removal in liquid media, were found to increase diuron removal 6-fold in BPSs. We observed an increase in the relative abundance of taxa, such as Chloroflexi, Acidobacteria, Gemmatimonadetes, Firmicutes, Deinococcus-Thermus and especially Proteobacteria (10%), in AV biomixtures, as well as an enrichment of γ-proteobacteria and the actinobacterial genus Dokdonella in AVEs with respect to initial noncontaminated IV biomixture. We demonstrate that extracts containing a pollutant-acclimatized microbiome could be used as part of a bioaugmentation strategy to improve the functioning of on-farm BPSs and contaminated systems.
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Affiliation(s)
- Inés Aguilar Romero
- Department of Environmental Protection, Estación Experimental del Zaidín. Consejo Superior de Investigaciones Científicas (EEZ-CSIC), C/ Profesor Albareda 1, 18008 Granada, Spain.
| | - Pieter van Dillewijn
- Department of Environmental Protection, Estación Experimental del Zaidín. Consejo Superior de Investigaciones Científicas (EEZ-CSIC), C/ Profesor Albareda 1, 18008 Granada, Spain.
| | - Joseph Nesme
- Section of Microbiology, Department of Biology, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Søren J Sørensen
- Section of Microbiology, Department of Biology, University of Copenhagen, 2100 Copenhagen, Denmark.
| | - Esperanza Romero
- Department of Environmental Protection, Estación Experimental del Zaidín. Consejo Superior de Investigaciones Científicas (EEZ-CSIC), C/ Profesor Albareda 1, 18008 Granada, Spain.
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Calado SLDM, Vicentini M, Santos GS, Pelanda A, Santos H, Coral LA, Magalhães VDF, Mela M, Cestari MM, Silva de Assis HC. Sublethal effects of microcystin-LR in the exposure and depuration time in a neotropical fish: Multibiomarker approach. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109527. [PMID: 31400723 DOI: 10.1016/j.ecoenv.2019.109527] [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: 04/05/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
Eutrophication is an ecological process that results in cyanobacterial blooms. Microcystin-LR is the most toxic variant of microcystins and may cause toxic effects in the organisms, mainly in hepatic tissues. The aims of this study were to use multiple biomarkers in order to evaluate the sublethal effects of a low concentration of MC-LR (1 μg/L) in fish Geophagus brasiliensis by waterborne exposure; and evaluate the depuration of this toxin during 15 days. A group of 30 fish was exposed to 1 μg/L of MC-LR solution for 96 h in a static bioassay. After this time, blood, brain, muscle, liver, gonad and gills were collected from half of the exposed fish group in order to evaluate chemical, biochemical, histological and genotoxic biomarkers. The rest of the fish group was submitted to the depuration experiment with free MC-LR water for 15 days. After this time the same tissues were collected and evaluated using biomarkers analysis. Toxic effects were found mostly in the fish liver from depuration time as alterations on the antioxidant system and histopathologies. The results showed that even low concentrations can cause sublethal effects to aquatic organisms, and cyanotoxins monitoring and regulation tools are required.
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Affiliation(s)
- Sabrina Loise de Morais Calado
- Ecology and Conservation Program Post-Graduation, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Maiara Vicentini
- Ecology and Conservation Program Post-Graduation, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Gustavo Souza Santos
- Department of Genetics, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Ana Pelanda
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Hayanna Santos
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Lucila Andriani Coral
- Department of Chemistry and Biology, Federal Technical University of Paraná, 81280-340, Curitiba-PR, Brazil.
| | | | - Maritana Mela
- Department of Cell Biology, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
| | - Marta Margarete Cestari
- Department of Genetics, Federal University of Paraná, PO Box 19031, 81530-990, Curitiba-PR, Brazil.
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20
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Kao CM, Ou WJ, Lin HD, Eva AW, Wang TL, Chen SC. Toxicity of diuron in HepG2 cells and zebrafish embryos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:432-438. [PMID: 30735975 DOI: 10.1016/j.ecoenv.2019.01.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/02/2019] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
Diuron is an herbicide, which is used to control a wide variety of annual and perennial broadleaf, grassy weeds, and mosses. However, the toxicity of diuron in HepG2 cells and zebrafish embryos was unclear. In this study, HpeG2 cells and zebrafish embryos were exposed to different concentrations of diuron for 24 h and 48 h, respectively. Results reveal the diuron caused cytotoxicity and the generation of reactive oxygen species (ROS) in the treated HepG2 cells. The effects of diuron on the expression of catalase and superoxide dismutase (SOD1 and SOD2), an antioxidant enzyme, were investigated. Results showed that only SOD1 was significantly induced after treated diuron 48 h, but the expression of catalase and SOD2 was unaffected. Additionally, the cytotoxicity of diuron was not attenuated in cells pretreated with of N-acetyl-cysteine (NAC), a well-known antioxidant, indicating that oxidative stress could not contribute to cellular death in the treated HepG2 cells. In zebrafish embryos, results from proteomic analysis show that 332 differentially upregulated proteins and 199 down-regulated proteins were detected in the treated embryos (P < 0.05). In addition to the up-regulated antioxidant proteins (prdx3, cat, prdx4, txnrd1, prdx1, sod1, prdx2, and sod2), some decreased proteins were related to cytoskeleton formation, tight junction, and gap junction, which could be related to the malformation of the treated zebrafish embryos. In summary, diuron caused cytotoxicity in HepG2 cells, and the mechanisms of toxicity in zebrafish were addressed using the proteomic analysis.
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Affiliation(s)
- Chih Ming Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Wei-Jen Ou
- Hematology-Oncology Section, LANDSEED Hospital, Jhongli, Taiwan
| | - Heng-Dao Lin
- Department of Life Sciences, National Central University, Jhongli, Taiwan
| | - Ari Wahyuni Eva
- Department of Life Sciences, National Central University, Jhongli, Taiwan
| | - Tzu-Ling Wang
- Graduate Institute of Mathematics and Science Education, National Tsing Hua University, Taiwan
| | - Ssu Ching Chen
- Department of Life Sciences, National Central University, Jhongli, Taiwan.
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21
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Nasia MM, Radovanović TB, Krizmanić II, Prokić MD, Gavrić JP, Despotović SG, Gavrilović BR, Borković-Mitić SS, Pavlović SZ, Saičić ZS. Prooxidant effects of chronic exposure to deltamethrin in green toad Bufotes viridis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:30597-30608. [PMID: 30173389 DOI: 10.1007/s11356-018-2979-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 08/15/2018] [Indexed: 06/08/2023]
Abstract
Pesticide-induced oxidative stress, as one of mechanism of toxicity, has been a focus of toxicological research. However, there is a lack of data for certain pesticides-oxidative stress effects especially on terrestrial amphibians. This study evaluates the prooxidative effects of orally administered insecticide deltamethrin (DM) in some tissues of the terrestrial toad Bufotes viridis. Toads were randomly divided and assigned to a control group and a test group that was orally exposed to the pesticide (5 mg/kg of body weight/daily) for 21 days. Animals were euthanized from each group on days 7, 14, and 21, and the liver, leg muscle, ventral skin, and gastrointestinal tissue (GIT) were dissected and used for analysis. From battery of investigated antioxidant components, superoxide dismutase (SOD) was the most differentiate parameter in all examined tissues. For the period of prolonged exposure to pesticide, antioxidative strategy of Bufotes viridis was based on SOD utilization in attempt to maintain the oxidative disbalance at acceptable level. The integrated biomarker response (IBR) as the measure of the overall biochemical response to DM exposure revealed that the group exposed for 21 days had the highest response. Our work has offered valuable data ensuring evidence that toads exposed to deltamethrin developed adaptive reactions that were tissue-specific and that DM-generated systemic toxicity was time-dependent. The present work showed that oxidative stress has significant role in pesticide-induced toxicity and contributes to better understanding of ecotoxicological risk in the terrestrial amphibians exposed to DM.
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Affiliation(s)
- Mohammed M Nasia
- Faculty of Biology, Chair of Comparative Physiology and Ecophysiology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
| | - Tijana B Radovanović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia.
| | - Imre I Krizmanić
- Faculty of Biology, Institute of Zoology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
| | - Marko D Prokić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Jelena P Gavrić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Svetlana G Despotović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Branka R Gavrilović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Slavica S Borković-Mitić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Slađan Z Pavlović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Zorica S Saičić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
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