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Das BK, Nayak KK, Kumar V. Alteration of haematological and biochemical biomarkers after sub-lethal chronic malathion (Elathion®) intoxication in freshwater fish, Labeo rohita (Hamilton, 1822). Comp Biochem Physiol C Toxicol Pharmacol 2024; 277:109844. [PMID: 38244824 DOI: 10.1016/j.cbpc.2024.109844] [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: 10/20/2023] [Revised: 12/13/2023] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
The present investigation aimed to evaluate the long-term effects of malathion (Elathion®) at two sub-lethal concentrations (0.36 and 1.84 mgL-1) for 45 days after the determination of 96 h-LC50 value (18.35 mgL-1) in a commercially important aquaculture species, Labeo rohita by assaying multiple biomarker approaches. Total erythrocyte count (TEC), and haemoglobulin count (Hb) were found to be decreased while total leucocyte counts (TLC) were increased (p < 0.05) in malathion-intoxicated fish. Malathion exposure significantly reduced (p < 0.05) serum protein levels while significantly increased (p < 0.05) blood glucose levels. RNA activity in muscle was reduced (p < 0.05) while DNA activity increased (p < 0.05) in malathion-intoxicated fish. Acid phosphatase (ACP) activities in the brain; lacate dehydrogenase (LDH) activities in brain and liver were increased (p < 0.05), while alkaline phosphatase (ALP) activities in the brain; succinate dehydrogenase (SDH) activities in the brain, liver and kidney; acetylcholine esterase (AChE) activity in the brain; and ATPase activities in the brain, liver and kidney were reduced (p < 0.05) in comparison to control. Thus, the alteration in studied biomarkers was in a concentation-time dependent manner; however, it was more pronounced at the higher concentration at 45 days of exposure. The alteration in biomarker activity is probably a defensive mechanism/ adaptive response of fish to overcome the stress induced by malathion, which is a novel insight and possible impact on L.rohita. Our findings suggest malathion-induced stress, therefore, the use of malathion needs to be regulated to safeguard aquatic animals including fish and human health.
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Affiliation(s)
- Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, West Bengal, India.
| | | | - Vikas Kumar
- ICAR-Central Inland Fisheries Research Institute, Regional Centre, Prayagraj, 211002, Uttar Pradesh, India.
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2
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Teixeira JRDS, de Souza AM, de Macedo-Sampaio JV, Menezes FP, Pereira BF, de Medeiros SRB, Luchiari AC. Embryotoxic Effects of Pesticides in Zebrafish ( Danio rerio): Diflubenzuron, Pyriproxyfen, and Its Mixtures. TOXICS 2024; 12:160. [PMID: 38393255 PMCID: PMC10892354 DOI: 10.3390/toxics12020160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/09/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
Diflubenzuron (DFB) and pyriproxyfen (PPF) are larvicides used in crops to control insect plagues. However, these pesticides are known to impact non-target organisms like fish and mammals. Here, we aimed at assessing the embryotoxicity of purified DFB, PPF, and their mixtures in a non-target organism-zebrafish. Zebrafish embryos were exposed to different concentrations for 120 h: 0.025, 0.125, 0.25, 1.25, 2.5, and 10 mg/L of purified PPF and purified DFB, while we used 0.025 mg/L PPF + 10 mg/L DFB (Mix A), 0.125 mg/L PPF + 10 mg/L DFB (Mix B), and 0.25 mg/L PPF + 10 mg/L DFB (Mix C) for the mixtures of PPF + DFB. We observed mortality, teratogenicity, and cardiotoxicity. For the neurotoxicity tests and evaluation of reactive oxygen species (ROS) levels in the brain, embryos were exposed for 120 h to 0.379 and 0.754 mg/L of PPF and 0.025 and 0.125 mg/L of DFB. We established the LC50 for PPF as 3.79 mg/L, while the LC50 for DFB was not determinable. Survival and hatching were affected by PPF concentrations above 0.125 mg/L, DFB concentrations above 1.25 mg/L, and the lower pesticide mixtures. PPF exposure and mixtures induced different types of malformations, while a higher number of malformations were observed for the mixtures, suggesting a potentiating effect. Pesticides diminished avoidance responses and increased the levels of ROS across all concentrations, indicating neurotoxicity. Our findings underscore the detrimental impact of PPF and DFB exposure, spanning from biochemistry to morphology. There is a critical need to reconsider the global use of these pesticides and transition to more ecologically friendly forms of pest control, raising an alarm regarding repercussions on human and animal health and well-being.
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Affiliation(s)
- Júlia Robert de Sousa Teixeira
- Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil; (J.R.d.S.T.); (J.V.d.M.-S.)
- Graduate Program in Psychobiology, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil
| | - Augusto Monteiro de Souza
- Department of Cell Biology and Genetics, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil; (A.M.d.S.); (S.R.B.d.M.)
| | - João Vitor de Macedo-Sampaio
- Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil; (J.R.d.S.T.); (J.V.d.M.-S.)
| | - Fabiano Peres Menezes
- Brazilian Institute of Environment and Renewable Natural Resources (IBAMA), Rio Grande 96200-180, RS, Brazil;
| | - Bruno Fiorelini Pereira
- Department of Biology, Federal University of São Paulo (UNIFESP), Diadema 09913-030, SP, Brazil;
| | - Silvia Regina Batistuzzo de Medeiros
- Department of Cell Biology and Genetics, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil; (A.M.d.S.); (S.R.B.d.M.)
| | - Ana Carolina Luchiari
- Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil; (J.R.d.S.T.); (J.V.d.M.-S.)
- Graduate Program in Psychobiology, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil
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3
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Ramesh M, Bindu CF, Mohanthi S, Hema T, Poopal RK, Ren Z, Bin L. Efficiency of hematological, enzymological and oxidative stress biomarkers of Cyprinus carpio to an emerging organic compound (alphamethrin) toxicity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104186. [PMID: 37331673 DOI: 10.1016/j.etap.2023.104186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/18/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023]
Abstract
Alphamethrin is one of the extensively used pyrethroids. Its non-specific mode-of-action might affect the non-target-organisms. Its toxicity data on aquatic organisms are lacking. We determined the toxicity (35 days) of alphamethrin (0.6µg/L and 1.2µg/L) on non-target-organisms by evaluating the efficiency of hematological, enzymological and antioxidants biomarkers of Cyprinus carpio. Compared with the control group, the efficiency of the biomarkers studied was significantly (p<0.05) impaired in the alphamethrin groups. Alphamethrin-toxicity altered hematology, transaminases and the potency of LDH of fish. ACP and ALP activity and biomarkers of oxidative stress in the gills, liver and muscle tissues were affected. IBRv2 index reveals that the biomarkers were inhibited. The observed impairments were the toxicity effects of alphamethrin with respect to concentration and time. The effectiveness of biomarkers for alphamethrin toxicity was like the toxicity data available on other banned insecticides. Alphamethrin could cause multiorgan toxicity on aquatic organisms at µg/L level.
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Affiliation(s)
- Mathan Ramesh
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China; Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore - 641 046, TamilNadu, India
| | - Clara F Bindu
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore - 641 046, TamilNadu, India
| | - Sundaram Mohanthi
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore - 641 046, TamilNadu, India
| | - Tamilselvan Hema
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore - 641 046, TamilNadu, India
| | - Rama-Krishnan Poopal
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China; Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore - 641 046, TamilNadu, India.
| | - Zongming Ren
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China
| | - Li Bin
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China.
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4
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Liu M, Liu Y, Liu X, Chu C, Yao D, Mao S. Modification strategies on 2D Ni-Fe MOF-based catalysts in peroxydisulfate activation for efficient organic pollutant removal. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Impact of P-Chloroaniline on Oxidative Stress and Biomacromolecules Damage in the Clam Ruditapes philippinarums: A Simulate Toxicity Test of Spill Incident. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095092. [PMID: 35564486 PMCID: PMC9105863 DOI: 10.3390/ijerph19095092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 01/25/2023]
Abstract
As a hazardous chemical, p-chloroaniline (PCA) shows intensive adsorption and accumulation after entering the aquatic ecosystem, which can be enriched in organisms and cause damage. With the objective of achieving an integrated and mechanistic view of the toxic effects of PCA in the marine sentinel organism Ruditapes philippinarum, Manila clams were exposed to different concentration of PCA (0.5, 2 and 5 mg/L) for 15 days. Focusing on the gills, first targeting the toxic and digestive gland, the metabolic detoxification organ, we detected dose- and time-related changes inantioxidase activities and biomacromolecular damages in treated clams. Glutathione S-transferase (GST) activity and glutathione (GSH) contents were significantly induced, and superoxide dismutase (SOD) activity increased at the beginning of exposure and then decreased. The malondialdehyde (MDA) and protein methylation (PC) contents which represent lipid peroxidation and carbonylation of proteins, increased first with exposure time and then decreased in the digestive gland. DNA strand break levels were consistently higher than those in the control group. The digestive gland showed more sensitivity to the stress of PCA than the gills. GST and MDA in the gill and GST, GSH, SOD, DNA strand break level in the digestive gland showed significant correlation with PCA exposure, which indicated that these parameters can be used as sensitive biomarkers to indicate toxic effects from chloraniline leakage.
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Immunomolecular response of CD4+, CD8+, TNF-α and IFN-γ in Myxobolus-infected koi (Cyprinus carpio) treated with probiotics. AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2022.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Distribution visualization of the chlorinated disinfection byproduct of diazepam in zebrafish with desorption electrospray ionization mass spectrometry imaging. Talanta 2022; 237:122919. [PMID: 34736655 DOI: 10.1016/j.talanta.2021.122919] [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: 08/05/2021] [Revised: 09/25/2021] [Accepted: 09/29/2021] [Indexed: 12/30/2022]
Abstract
Diazepam (DZP) was routinely prescribed to a large population troubled with anxiety disorders. However, due to the overuse and misuse, DZP and its chlorination disinfection byproduct 2-methylamino-5-chlorobenzophenone (MACB) caused environmental pollution and can be detected ubiquitously in drinking water in Beijing, China. However, little information is known about the metabolic dynamics of MACB. Here, we established desorption electrospray ionization mass spectrometry (DESI-MS) imaging method to visually and quantitatively assess the distribution and metabolism of MACB in zebrafish. The results showed that MACB specifically accumulated in spinal cord particularly in female zebrafish. Meanwhile, the accumulation of MACB could pass through the blood-brain barrier (BBB) and induced microglial phagocytosis of neurons. Therefore, the intervention strategies should be explored to restrict the release of such substances, eliminating the potential risks for both human beings and the eco-environment.
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GÜL N, YİĞİT N, SAYGILI YİĞİT F, YAZICI ÖZÇELİK E, ESKİZENGİN H. The Effects of Diflubenzuron on Acetylcholinesterase (EC 3.1.1.7) Activity and Liver Ultrastructure in Wistar Rats. GAZI UNIVERSITY JOURNAL OF SCIENCE 2022. [DOI: 10.35378/gujs.868668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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Silva ALN, Rodrigues RA, Siqueira MS, Farias KNN, Kuibida KV, Franco-Belussi L, Fernandes CE. Transaminase profile and hepatic histopathological traits in Piaractus mesopotamicus exposed to insecticide Diflubenzuron. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22002-22010. [PMID: 33410075 DOI: 10.1007/s11356-020-12013-2] [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: 08/17/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
Diflubenzuron (DFB) is a widely used insecticide to control ectoparasites in fish farming. Although therapeutic concentrations (i.e., 50 to 100 mg/L) are safe as they fail to induce mortality, they can promote tissue changes. In Brazil, Pacu (Piaractus mesopotamicus) is a native species used for commercial production, and it remains crucial to determine underlying mechanisms to mitigate the potential effects of pathogens on productivity. The aim of this study was to analyze the transaminase profile and histopathological changes in the liver of P. mesopotamicus exposed to a DFB bath. Hence, the fish were exposed to an immersion bath containing a 70 mg/L nominal concentration of Difluchem 240 SC® (24% (m/m) DFB) for 30 (n = 10), 60 (n = 10), and 120 min (n = 10), every 24 h for 3 days. Following exposure, plasma transaminases and liver histology were analyzed. In DFB-exposed fish, levels of aspartate transaminase (AST) and alanine transaminase (ALT) were elevated when compared with the control at 30 and 60 min. Furthermore, liver morphology was altered based on exposure times. Compared with controls, the degree of reversible damage (degree of tissue change (DTC)) demonstrated high scores for all exposure times, with no difference between individual groups. Irreversible changes were increased in the 60 and 120-min baths. These findings highlight the impact of the therapeutic DFB concentration (i.e., 70 mg/L), revealing that 60-min and 120-min bathing induces irreversible and progressive hepatic changes.
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Affiliation(s)
- André Luiz N Silva
- Programa de Pós Graduação em Ciência Animal, Faculdade de Medicina Veterinária, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Robson Andrade Rodrigues
- Departamento de Aquicultura do Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Mayara Schueroff Siqueira
- Laboratório de Patologia Experimental (LAPEx), Instituto de Biociências Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Karine Nathiele Nogueira Farias
- Programa de Pós Graduação em Ciência Animal, Faculdade de Medicina Veterinária, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Karin Virgínia Kuibida
- Laboratório de Patologia Experimental (LAPEx), Instituto de Biociências Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Lilian Franco-Belussi
- Laboratório de Patologia Experimental (LAPEx), Instituto de Biociências Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Carlos E Fernandes
- Laboratório de Patologia Experimental (LAPEx), Instituto de Biociências Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil.
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Queiroz LG, do Prado CCA, de Almeida ÉC, Dörr FA, Pinto E, da Silva FT, de Paiva TCB. Responses of Aquatic Nontarget Organisms in Experiments Simulating a Scenario of Contamination by Imidacloprid in a Freshwater Environment. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 80:437-449. [PMID: 33275184 DOI: 10.1007/s00244-020-00782-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Several studies have indicated the presence of the neonicotinoid insecticide imidacloprid (IMI) in aquatic ecosystems in concentrations up to 320.0 µg L-1. In the present study, we evaluated the effects of the highest IMI concentration detected in surface water (320.0 µg L-1) on the survival of Chironomus sancticaroli, Daphnia similis, and Danio rerio in three different scenarios of water contamination. The enzymatic activities of glutathione S-transferase (GST), catalase (CAT), and ascorbate peroxidase (APX) in D. rerio also were determined. For this evaluation, we have simulated a lotic environment using an indoor system of artificial channels developed for the present study. In this system, three scenarios of contamination by IMI (320.0 µg L-1) were reproduced: one using reconstituted water (RW) and the other two using water samples collected in unpolluted (UW) and polluted (DW) areas of a river. The results indicated that the tested concentration was not able to cause mortality in D. similis and D. rerio in any proposed treatment (RW, UW, and DW). However, C. sancticaroli showed 100% of mortality in the presence of IMI in the three proposed treatments, demonstrating its potential to impact the community of aquatic nontarget insects negatively. Low IMI concentrations did not offer risks to D. rerio survival. However, we observed alterations in GST, CAT, and APX activities in treatments that used IMI and water with no evidence of pollution (i.e., RW and UW). These last results demonstrated that fish are more susceptible to the effects of IMI in unpolluted environments.
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Affiliation(s)
- Lucas Gonçalves Queiroz
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, SP, Brazil.
| | | | - Éryka Costa de Almeida
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Felipe Augusto Dörr
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Ernani Pinto
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Flávio Teixeira da Silva
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, SP, Brazil
| | - Teresa Cristina Brazil de Paiva
- Department of Basic and Environmental Sciences, School of Engineering of Lorena, University of São Paulo, Lorena, SP, Brazil
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Qiu N, Xu C, Wang X, Hou M, Xia Z, Wang J. Chemicals Weaken Shoal Preference in the Rare Minnow Gobiocypris rarus. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:2018-2027. [PMID: 32681662 DOI: 10.1002/etc.4825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/15/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Fish behavioral responses are sensitive to chemicals in the water. We tested rare minnow tested for their shoal preference, and the shoal (school) factors including nutritional status, body size, and shoal (school) size that can make their preference most stable were measured. Then shoal preference was measured again while fish and shoal were subjected to a concentration gradient of chemicals (cadmium ion [Cd2+ ], tricaine methanesulfonate [MS222], and p-chloroaniline). The results showed that single rare minnow preferred shoals over blank control tanks. In addition, this preference was most stable when the shoal was well fed and contained 20 individuals 2 cm long. Although there was no significant response after exposure to p-chloroaniline, the time spent from entering the tank to start moving decreased greatly at concentrations of Cd2+ >3 mg/L and MS222 >11 mg/L. The time the test fish spent close to the shoal significantly decreased at Cd2+ >3 mg/L, MS222 >11 mg/L, and p-chloroaniline >10 mg/L, and the frequency of boundary line crossing increased at the same concentrations. The behavioral parameters changed by 20, 5, and 8 min once the lowest-observed-effect concentrations of Cd2+ , MS222, and p-chloroaniline, respectively, were added. Our study provides useful information on rare minnow shoal preference that may be used for a biological early warning system. Environ Toxicol Chem 2020;39:2018-2027. © 2020 SETAC.
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Affiliation(s)
- Ning Qiu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chunsen Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xuzhen Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Miaomiao Hou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
- Dalian Ocean University, Dalian, Liaoning, China
| | - Zhijun Xia
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jianwei Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
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Ma B, Zhao C, Li S, Gao M, She Z, Yu N, Guo L, Zhao Y, Jin C. Effects of transient 3-chloroaniline shock loading on the performance, microbial community and enzymatic activity of sequencing batch reactor. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 258:110017. [PMID: 31929059 DOI: 10.1016/j.jenvman.2019.110017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/28/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Chloroanilines from industrial wastewater can produce adverse effects on biological wastewater treatment systems due to their potential biotoxicity. The performance, nitrogen removal rate, microbial community and enzymatic activity of a sequencing batch reactor (SBR) were evaluated under transient 3-chloroaniline shock loading. After 40 mg/L 3-chloroaniline shock loading of 24 h on day 9, the chemical oxygen demand (COD) removal efficiency decreased from 90.71% on day 8 to 80.57% on day 11, and the NH4+-N removal efficiency reduced from 98.96% on day 8 to 35.51% on day 12. Subsequently, the COD and NH4+-N removal efficiencies gradually recovered to normal value. Compared with the absence of 3-chloroaniline shock loading, the ammonia-oxidizing rate (SAOR), nitrite-oxidizing rate (SNOR), nitrite-reducing rate (SNIRR) and nitrate-reducing rate (SNRR) decreased by 66.19%, 14.49%, 16.20% and 49.38% on day 11, respectively, and then they gradually recovered to normal value. The SAOR, SNOR, SNIRR and SNRR displayed the similar varying trends to the activities of ammonia monooxygenase, nitrite oxidoreductase, nitrite reductase and nitrate reductase, respectively. The appearance of 3-chloroaniline promoted the microbial reactive oxygen species production and lactate dehydrogenase release. The transient 3-chloroaniline shock loading distinctly impacted the microbial richness and diversity. The present research results can provide theoretical basis and technical support for evaluating the effects of transient 3-chloroaniline shock on biological wastewater treatment systems, which is beneficial to take reasonable preventable measures to decrease the adverse effects on the bioreactor performance.
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Affiliation(s)
- Bingrui Ma
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Qingdao, 266100, China
| | - Changkun Zhao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Qingdao, 266100, China
| | - Shanshan Li
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Mengchun Gao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
| | - Zonglian She
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Naling Yu
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Liang Guo
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Yangguo Zhao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Chunji Jin
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Qingdao, 266100, China
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13
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Wang H, Xie Y, Jiao M, Hu X, Li J, Xu P, Zhang Y, Chang J. Metabolism of Diflubenzuron in Lizard ( Eremias argus) and Comparative Toxicity of Diflubenzuron and Its Metabolite. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11640-11646. [PMID: 30346759 DOI: 10.1021/acs.jafc.8b03713] [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: 06/08/2023]
Abstract
The metabolic process of diflubenzuron in rat or fish has been well studied, but little is known about its elimination pathway in lizard. The current study predicted the metabolic route of diflubenzuron in lizard feces and compared the toxicity of diflubenzuron and 4-chloroaniline on lizard thyroid system. The amido bond cleavage was the major route for diflubenzuron elimination in lizard feces. 4-Chloroaniline as the most toxic diflubenzuron metabolite was also abundant in feces. According to liver slices, 4-chloroaniline exposure induced significant changes of nuclear shape, while diflubenzuron exposure caused significant hepatocytes clustering. On the basis of thyroid hormone and thyroid-related gene levels, triiodothyronine (T3) level in lizard liver was regulated by thyroid hormone receptors, while thyroxine (T4) concentration was modulated by dio2 and udp genes after diflubenzuron or 4-chloroaniline exposure. These results showed that both diflubenzuron and 4-chloroaniline could disrupt lizard thyroid system, which could provide evidence for lizard population decline.
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Affiliation(s)
- Huili Wang
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
| | - Yun Xie
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
- University of Chinese Academy of Sciences , Yuquan RD 19 a , Beijing 100049 , China
| | - Meng Jiao
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
- University of Chinese Academy of Sciences , Yuquan RD 19 a , Beijing 100049 , China
| | - Xiao Hu
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
- University of Chinese Academy of Sciences , Yuquan RD 19 a , Beijing 100049 , China
| | - Jitong Li
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
| | - Peng Xu
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
| | - Yanfeng Zhang
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
| | - Jing Chang
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing RD 18 , Beijing 100085 , China
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