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Lu YP, Liu JH, Zhang XX, Xu C, Zheng PH, Li JT, Li JJ, Wang DM, Xian JA, Zhang ZL. Integration of transcriptome, gut microbiota, and physiology reveals toxic responses of the red claw crayfish (Cherax quadricarinatus) to imidacloprid. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134293. [PMID: 38615646 DOI: 10.1016/j.jhazmat.2024.134293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Imidacloprid enters the water environment through rainfall and causes harm to aquatic crustaceans. However, the potential chronic toxicity mechanism of imidacloprid in crayfish has not been comprehensively studied. In this study, red claw crayfish (Cherax quadricarinatus) were exposed to 11.76, 35.27, or 88.17 μg/L imidacloprid for 30 days, and changes in the physiology and biochemistry, gut microbiota, and transcriptome of C. quadricarinatus and the interaction between imidacloprid, gut microbiota, and genes were studied. Imidacloprid induced oxidative stress and decreased growth performance in crayfish. Imidacloprid exposure caused hepatopancreas damage and decreased serum immune enzyme activity. Hepatopancreatic and plasma acetylcholine decreased significantly in the 88.17 μg/L group. Imidacloprid reduced the diversity of the intestinal flora, increased the abundance of harmful flora, and disrupted the microbiota function. Transcriptomic analysis showed that the number of up-and-down-regulated differentially expressed genes (DEGs) increased significantly with increasing concentrations of imidacloprid. DEG enrichment analyses indicated that imidacloprid inhibits neurotransmitter transduction and immune responses and disrupts energy metabolic processes. Crayfish could alleviate imidacloprid stress by regulating antioxidant and detoxification-related genes. A high correlation was revealed between GST, HSPA1s, and HSP90 and the composition of gut microorganisms in crayfish under imidacloprid stress. This study highlights the negative effects and provides detailed sequencing data from transcriptome and gut microbiota to enhance our understanding of the molecular toxicity of imidacloprid in crustaceans.
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Affiliation(s)
- Yao-Peng Lu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jia-Han Liu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Xiu-Xia Zhang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Chi Xu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Pei-Hua Zheng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jun-Tao Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jia-Jun Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Dong-Mei Wang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jian-An Xian
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
| | - Ze-Long Zhang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
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Koch J, Classen S, Gerth D, Dallmann N, Strauss T, Vaugeois M, Galic N. Modeling temperature-dependent life-cycle toxicity of thiamethoxam in Chironomus riparius using a DEB-TKTD model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116355. [PMID: 38669871 DOI: 10.1016/j.ecoenv.2024.116355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/22/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
The neonicotinoid insecticide thiamethoxam (TMX) is widely used to protect crops against insect pests. Despite some desirable properties such as its low toxicity to birds and mammals, concerns have been raised about its toxicity to non-target arthropods, including freshwater insects like chironomids. Whereas multiple studies have investigated chronic effects of neonicotinoids in chironomid larvae at standardized laboratory conditions, a better understanding of their chronic toxicity under variable temperatures and exposure is needed for coherent extrapolation from the laboratory to the field. Here, we developed a quantitative mechanistic effect model for Chironomus riparius, to simulate the species' life history under dynamic temperatures and exposure concentrations of TMX. Laboratory experiments at four different temperatures (12, 15, 20, 23 °C) and TMX concentrations between 4 and 51 µg/L were used to calibrate the model. Observed concentration-dependent effects of TMX in C. riparius included slower growth, later emergence, and higher mortality rates with increasing concentrations. Furthermore, besides a typical accelerating effect on the organisms' growth and development, higher temperatures further increased the effects associated with TMX. With some data-informed modeling decisions, most prominently the inclusion of a size dependence that makes larger animals more sensitive to TMX, the model was parametrized to convincingly reproduce the data. Experiments at both a constant (20 °C) and a dynamically increasing temperature (15-23 °C) with pulsed exposure were used to validate the model. Finally, the model was used to simulate realistic exposure conditions using two reference exposure scenarios measured in Missouri and Nebraska, utilizing a moving time window (MTW) and either a constant temperature (20 °C) or the measured temperature profiles belonging to each respective scenario. Minimum exposure multiplication factors leading to a 10% effect (EP10) in the survival at pupation, i.e., the most sensitive endpoint found in this study, were 25.67 and 21.87 for the Missouri scenario and 38.58 and 44.64 for the Nebraska scenario, when using the respective temperature assumptions. While the results illustrate that the use of real temperature scenarios does not systematically modify the EPx in the same direction (making it either more or less conservative when used as a risk indicator), the advantage of this approach is that it increases the realism and thus reduces the uncertainty associated with the model predictions.
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Affiliation(s)
- Josef Koch
- gaiac Research Institute, Aachen, Germany.
| | | | | | | | | | | | - Nika Galic
- Syngenta Crop Protection AG, Basel, Switzerland
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Li X, Li M, Xue X, Wang X. Proteomic analysis reveals oxidative stress-induced activation of Hippo signaling in thiamethoxam-exposed Drosophila. CHEMOSPHERE 2023; 338:139448. [PMID: 37437626 DOI: 10.1016/j.chemosphere.2023.139448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/12/2023] [Accepted: 07/07/2023] [Indexed: 07/14/2023]
Abstract
Thiamethoxam (THIA) is a widely used neonicotinoid insecticide. However, the toxicity and defense mechanisms activated in THIA-exposed insects are unclear. Here, we used isobaric tags for relative and absolute quantitation (iTRAQ) proteomics technology to identify changes in protein expression in THIA-exposed Drosophila. We found that the antioxidant proteins Cyp6a23 and Dys were upregulated, whereas vir-1 was downregulated, which may have been detoxification in response to THIA exposure. Prx5 downregulation promoted the generation of reactive oxygen species. Furthermore, the accumulation of reactive oxygen species led to the induction of antioxidant defenses in THIA-exposed Drosophila, thereby enhancing the levels of oxidative stress markers (e.g., superoxide dismutase, glutathione S-transferase, and glutathione) and reducing catalase expression. Furthermore, the Hippo signaling transcription coactivator Yki was inactivated by THIA. Our results suggesting that Hippo signaling may be necessary to promote insect survival in response to neonicotinoid insecticide toxicity.
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Affiliation(s)
- Xiaoqin Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing, 100193, China
| | - Mingquan Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing, 100193, China
| | - Xianle Xue
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China
| | - Xing Wang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing, 100193, China.
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4
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Barbosa RS, Ribeiro F, Rotili EA, de Sousa Venega R, Dornelas ASP, Soares AMVM, Gravato C, Sarmento RA. Is Actara® a less toxic neonicotinoid formulation? A multigenerational study using the non-target organism Chironomus xanthus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:93779-93785. [PMID: 37516699 DOI: 10.1007/s11356-023-28956-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
Neonicotinoids are highly consumed systemic insecticides that mimic acetylcholine (ACh) with a specific mode of action at the nicotinic acetylcholine receptors (nAChRs). The insecticide Actara® (active ingredient thiamethoxam- TMX) is a commercial formulation widely used for the control of various agricultural pest species. However, negative effects of TMX have been observed in non-target organisms. This work aimed to evaluate the biological effects of the commercial formulation Actara® on the aquatic non-target and non-biting larvae of Chironomus xanthus (Diptera). The lethal (LC50) and sublethal (body length, head capsule width, cumulative emergence, and mean time to emergence-EmT50) effects were determined in two subsequent generations (P and F1). The estimated 48 h LC50 for C. xanthus larvae exposed to Actara® was 73.02 µg TMX/L. By looking at the sublethal effects of Actara on the life cycle parameters of C. xanthus, we determined that none of the concentrations used induced a significantly different response in the organisms, compared to the control treatment (NOEC > 2 µg TMX/L). However, the head capsule width in the parental (P) generation exposed to Actara (≥ 0.9 µg TMX/L) was significantly bigger than the head capsule width of control animals. Overall, our results highlight that, at environmentally relevant concentrations, the commercial formulation Actara® is non-toxic to C. xanthus.
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Affiliation(s)
- Rone S Barbosa
- Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.
- Universidade Federal Do Tocantins, Campus de Gurupi, Gurupi, TO, 77402-970, Brasil.
| | - Fabianne Ribeiro
- Universidade Federal Do Tocantins, Campus de Gurupi, Gurupi, TO, 77402-970, Brasil
- CESAM & Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | | | | | | | - Amadeu M V M Soares
- CESAM & Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Carlos Gravato
- Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal
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He F, Liu R. Mechanistic insights into phenanthrene-triggered oxidative stress-associated neurotoxicity, genotoxicity, and behavioral disturbances toward the brandling worm (Eisenia fetida) brain: The need for an ecotoxicological evaluation. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131072. [PMID: 36857826 DOI: 10.1016/j.jhazmat.2023.131072] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
In this study, earthworm (Eisenia fetida) brain was chosen as targeted receptors to probe the mechanisms of oxidative stress-related neurotoxicity, genotoxicity, and behavioral disturbances triggered by PHE. Results showed that PHE stress can initiate significant amounts of ROS, thus triggering oxidative stress in E. fetida brain. These effects were accompanied by a significant increase of damage to macromolecules DNA and lipids, resulting in severe oxidative effects. PHE exposure can induce AChE inhibition by ROS-induced injury and the accumulation of excess ACh at the nicotinic post-synaptic membrane, thus inducing aggravated neurological dysfunction and neurotoxicity of E. fetida through an oxidative stress pathway. Moreover, the burrowing behavior of earthworms was disturbed by oxidative stress-induced neurotoxicity after exposure to PHE. Furthermore, the abnormal mRNA expression profiles of oxidative stress- and neurotoxicity-related genes in worm brain were induced by PHE stress. The IBR results suggested that E. fetida brain was suffered more serious damage caused by PHE under higher doses and long-term exposure. Taken together, PHE exposure can trigger oxidative stress-mediated neurotoxicity and genotoxicity in worm brain and behavioral disorder through ROS-induced damage. This study is of great significance to evaluate the harmful effects of PHE and its mechanisms on soil ecological health.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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He F, Liu R, Tian G, Qi Y, Wang T. Ecotoxicological evaluation of oxidative stress-mediated neurotoxic effects, genetic toxicity, behavioral disorders, and the corresponding mechanisms induced by fluorene-contaminated soil targeted to earthworm (Eisenia fetida) brain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 871:162014. [PMID: 36740067 DOI: 10.1016/j.scitotenv.2023.162014] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Fluorene is a commonly identified PAH pollutant in soil and exhibits various worrisome hazardous effects to soil organisms. Currently, the toxicity profiles of fluorene on earthworm brain are rare, and the mechanisms and their corresponding pathways involved in fluorene-triggered neurotoxicity, genotoxicity, and behavior changes have not been reported hitherto. Herein, earthworm (Eisenia fetida) brain was chosen as targeted receptor to explore the neurotoxic effects, genetic toxicity, behavioral disorders, and related mechanisms caused by fluorene-induced oxidative stress pathways. The results showed excess fluorene initiated the release of excessive quantities of ROS in earthworm brain, which have caused oxidative stress and accompanied by serious oxidative effects, including LPO (lipid peroxidation) and DNA injury. To minimize the damage effects, the antioxidant defense mechanisms (antioxidant enzymes and non-enzymatic antioxidants) were activated, and entailed a decrease of the antioxidant capacity in E. fetida brain, which, in turn, causes further ROS-induced ROS release. Exposure of fluorene induced the abnormal mRNA expression of genes relevant to oxidative stress (e.g., GST, SOD, CAT, GPx, MT, and Hsp70) and neurotoxicity (e.g., H02, C04, D06, and E08) in E. fetida brain. Specifically, fluorene can bind directly to AChE, destroying the conformation of this protein, and even affecting its physiological functions. This occurrence caused the inhibition of AChE activity and excess ACh accumulation at the nicotinic post-synaptic membrane, finally triggering neurotoxicity by activation of pathways related to oxidative stress. Moreover, the avoidance responses and burrowing behavior were obviously disturbed by oxidative stress-induced neurotoxicity after exposure to fluorene. The results form IBR suggested more severe poisoning effects to E. fetida brain initiated by high-dose and long-term exposure of fluorene. Among, oxidative stress injury and genotoxic potential are more sensitive endpoint than others. Collectively, fluorene stress can provoke potential neurotoxicity, genotoxicity, and behavioral disturbances targeted to E. fetida brain through the ROS-mediated pathways involving oxidative stress. These findings are of great significance to estimate the detrimental effects of fluorene and the corresponding mechanisms on soil eco-safety.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| | - Guang Tian
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Yuntao Qi
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Tingting Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
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Lu Y, Zheng X, He X, Guo J, Fu Q, Xu H, Lu Z. Sublethal effects of chlorantraniliprole on growth, biochemical and molecular parameters in two chironomids, Chironomus kiiensis and Chironomus javanus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114658. [PMID: 36796207 DOI: 10.1016/j.ecoenv.2023.114658] [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: 11/01/2022] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Pesticide residues have serious environmental impacts on rice-based ecosystems. In rice fields, Chironomus kiiensis and Chironomus javanus provide alternative food sources to predatory natural enemies of rice insect pests, especially when pests are low. Chlorantraniliprole is a substitute for older classes of insecticides and has been used extensively to control rice pests. To determine the ecological risks of chlorantraniliprole in rice fields, we evaluated its toxic effects on certain growth, biochemical and molecular parameters in these two chironomids. The toxicity tests were performed by exposing third-instar larvae to a range of concentrations of chlorantraniliprole. LC50 values at 24 h, 48 h, and 10 days showed that chlorantraniliprole was more toxic to C. javanus than to C. kiiensis. Chlorantraniliprole significantly prolonged the larval growth duration, inhibited pupation and emergence, and decreased egg numbers of C. kiiensis and C. javanus at sublethal dosages (LC10 = 1.50 mg/L and LC25 = 3.00 mg/L for C. kiiensis; LC10 = 0.25 mg/L and LC25 = 0.50 mg/L for C. javanus). Sublethal exposure to chlorantraniliprole significantly decreased the activity of the detoxification enzymes carboxylesterase (CarE) and glutathione S-transferases (GSTs) in both C. kiiensis and C. javanus. Sublethal exposure to chlorantraniliprole also markedly inhibited the activity of the antioxidant enzyme peroxidase (POD) in C. kiiensis and POD and catalase (CAT) in C. javanus. Expression levels of 12 genes revealed that detoxification and antioxidant abilities were affected by sublethal exposures to chlorantraniliprole. There were significant changes in the expression levels of seven genes (CarE6, CYP9AU1, CYP6FV2, GSTo1, GSTs1, GSTd2, and POD) in C. kiiensis and ten genes (CarE6, CYP9AU1, CYP6FV2, GSTo1, GSTs1, GSTd2, GSTu1, GSTu2, CAT, and POD) in C. javanus. These results provide a comprehensive overview of the differences in chlorantraniliprole toxicity to chironomids, indicating that C. javanus is more susceptible and suitable as an indicator for ecological risk assessment in rice ecosystems.
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Affiliation(s)
- Yanhui Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Xusong Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Xiaochan He
- Jinhua Academy of Agricultural Sciences, Jinhua 321000, PR China
| | - Jiawen Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Qiming Fu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Hongxing Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
| | - Zhongxian Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
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8
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do Prado CCA, Queiroz LG, da Silva FT, de Paiva TCB. Toxicological effects caused by environmental relevant concentrations of ketoconazole in Chironomus sancticaroli (Diptera, Chironomidae) larvae evaluated by oxidative stress biomarkers. Comp Biochem Physiol C Toxicol Pharmacol 2023; 264:109532. [PMID: 36470399 DOI: 10.1016/j.cbpc.2022.109532] [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: 08/31/2022] [Revised: 11/21/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022]
Abstract
Ketoconazole (KTZ), a broad-spectrum fungicidal drug, has been a significant problem in recent decades due to its toxic action on non-target aquatic organisms. Thus, the present study aimed to evaluate determine the effects that environmental relevant concentration of the commercial formulation of KTZ can exert on benthic macroinvertebrates, more specifically on larvae of the insect Chironomus sancticaroli. Acute toxicity tests with KTZ indicated lethal concentration (LC50) of 9.9 μg/L. Analyses of prolonged exposure to KTZ (chronic toxicity) indicated an increase in the rate of mentum deformity by approximately 3 times at concentrations of 0.6 and 2.4 μg/L. All biomarkers analyzed showed an increase after exposure to KTZ (0.6 and 2.4 μg/L), with average values of 115 % for superoxide dismutase (SOD), 63 % for catalase (CAT), 111 % for glutathione S-transferase (GST) and 59 % for malonaldehyde (MDA) in C. sancticaroli larvae. Thus, the toxic effects on survival, development (length and weight), mentum and redox responses caused by commercial KTZ in low concentrations were observed on C. sancticaroli larvae. In addition, the results suggest that biochemical biomarkers can be used for studies involving environmental disturbances.
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Affiliation(s)
- Caio César Achiles do Prado
- University of Sao Paulo, Engineering School of Lorena, Department of Biotechnology, Lorena 12602-810, Brazil.
| | - Lucas Gonçalves Queiroz
- University of São Paulo, Institute of Biosciences Department of Ecology, São Paulo 05508-090, Brazil
| | - Flávio Teixeira da Silva
- University of Sao Paulo, Engineering School of Lorena, Department of Biotechnology, Lorena 12602-810, Brazil.
| | - Teresa Cristina Brazil de Paiva
- University de Sao Paulo, Engineering School of Lorena, Department of Basic and Environmental Sciences, Lorena 12602-810, Brazil.
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Kolbenschlag S, Gerstle V, Eberhardt J, Bollinger E, Schulz R, Brühl CA, Bundschuh M. A temporal perspective on aquatic subsidy: Bti affects emergence of Chironomidae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 250:114503. [PMID: 36610297 DOI: 10.1016/j.ecoenv.2023.114503] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/05/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Emerging aquatic insects serve as one link between aquatic and adjacent riparian food webs via the flux of energy and nutrients. These insects provide high-quality subsidy to terrestrial predators. Thus, any disturbance of emergence processes may cascade to higher trophic levels and lead to effects across ecosystem boundaries. One stressor with potential impact on non-target aquatic insects, especially on non-biting midges (Diptera: Chironomidae), is the widely used mosquito control agent Bacillus thuringiensis var. israelensis (Bti). In a field experiment, we investigated emerging insect communities from Bti-treated (three applications, maximum field rate) and control floodplain pond mesocosms (FPMs) over 3.5 months for changes in their composition, diversity as well as the emergence dynamics and the individual weight of emerged aquatic insects over time. Bti treatments altered community compositions over the entire study duration - an effect mainly attributed to an earlier (∼10 days) and reduced (∼26%) peak in the emergence of Chironomidae, the dominant family (88% of collected individuals). The most reasonable explanation for this significant alteration is less resource competition caused by a decrease in chironomid larval density due to lethal effects of Bti. This is supported by the higher individual weight of Chironomidae emerging from treated FPMs (∼21%) during Bti application (April - May). A temporal shift in the emergence dynamics can cause changes in the availability of prey in linked terrestrial ecosystems. Consequently, terrestrial predators may be affected by a lack of appropriate prey leading to bottom-up and top-down effects in terrestrial food webs. This study indicates the importance of a responsible and elaborated use of Bti and additionally, highlights the need to include a temporal perspective in evaluations of stressors in aquatic-terrestrial meta-ecosystems.
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Affiliation(s)
- Sara Kolbenschlag
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany
| | - Verena Gerstle
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany
| | - Julian Eberhardt
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany
| | - Eric Bollinger
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany
| | - Ralf Schulz
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany; Eußerthal Ecosystem Research Station, University of Kaiserslautern-Landau (RPTU), Birkenthalstr. 13, D-76857 Eußerthal, Germany
| | - Carsten A Brühl
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany
| | - Mirco Bundschuh
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau (RPTU), Fortstr. 7, D-76829 Landau, Germany; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Lennart Hjelms väg 9, SWE-75007 Uppsala, Sweden.
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Bruckmann FS, Schnorr C, Oviedo LR, Knani S, Silva LFO, Silva WL, Dotto GL, Bohn Rhoden CR. Adsorption and Photocatalytic Degradation of Pesticides into Nanocomposites: A Review. Molecules 2022; 27:6261. [PMID: 36234798 PMCID: PMC9572628 DOI: 10.3390/molecules27196261] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/12/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022] Open
Abstract
The extensive use of pesticides in agriculture has significantly impacted the environment and human health, as these pollutants are inadequately disposed of into water bodies. In addition, pesticides can cause adverse effects on humans and aquatic animals due to their incomplete removal from the aqueous medium by conventional wastewater treatments. Therefore, processes such as heterogeneous photocatalysis and adsorption by nanocomposites have received special attention in the scientific community due to their unique properties and ability to degrade and remove several organic pollutants, including pesticides. This report reviews the use of nanocomposites in pesticide adsorption and photocatalytic degradation from aqueous solutions. A bibliographic search was performed using the ScienceDirect, American Chemical Society (ACS), and Royal Society of Chemistry (RSC) indexes, using Boolean logic and the following descriptors: "pesticide degradation" AND "photocatalysis" AND "nanocomposites"; "nanocomposites" AND "pesticides" AND "adsorption". The search was limited to research article documents in the last ten years (from January 2012 to June 2022). The results made it possible to verify that the most dangerous pesticides are not the most commonly degraded/removed from wastewater. At the same time, the potential of the supported nanocatalysts and nanoadsorbents in the decontamination of wastewater-containing pesticides is confirmed once they present reduced bandgap energy, which occurs over a wide range of wavelengths. Moreover, due to the great affinity of the supported nanocatalysts with pesticides, better charge separation, high removal, and degradation values are reported for these organic compounds. Thus, the class of the nanocomposites investigated in this work, magnetic or not, can be characterized as suitable nanomaterials with potential and unique properties useful in heterogeneous photocatalysts and the adsorption of pesticides.
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Affiliation(s)
- Franciele S. Bruckmann
- Laboratório de Materiais Magnéticos Nanoestruturados, LaMMaN, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
- Programa de Pós-Graduação em Nanociências, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
| | - Carlos Schnorr
- Department of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 080002, Atlántico, Colombia
| | - Leandro R. Oviedo
- Programa de Pós-Graduação em Nanociências, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
| | - Salah Knani
- College of Science, Northern Border University, Arar 91431, Saudi Arabia
- Laboratory of Quantum and Statistical Physics, Faculty of Sciences of Monastir, University of Monastir, Monastir 5079, Tunisia
| | - Luis F. O. Silva
- Department of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 080002, Atlántico, Colombia
| | - William L. Silva
- Programa de Pós-Graduação em Nanociências, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
| | - Guilherme L. Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Department of Chemical Enginnering, Federal University of Santa Maria, Santa Maria 97105-900, RS, Brazil
| | - Cristiano R. Bohn Rhoden
- Laboratório de Materiais Magnéticos Nanoestruturados, LaMMaN, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
- Programa de Pós-Graduação em Nanociências, Universidade Franciscana-UFN, Santa Maria 97010-032, RS, Brazil
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11
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Fu Z, Han F, Huang K, Zhang J, Qin JG, Chen L, Li E. Combined toxic effects of thiamethoxam on intestinal flora, transcriptome and physiology of Pacific white shrimp Litopenaeus vannamei. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 830:154799. [PMID: 35341860 DOI: 10.1016/j.scitotenv.2022.154799] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/20/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
The environmental accumulation of thiamethoxam has increasingly become a risk for the health of aquatic animals, especially crustacean species in the same phylum as the target pests. The lack of knowledge on the toxicity of thiamethoxam to crustaceans motivates our research to study the acute and chronic toxicity of decapod crustaceans Litopenaeus vannamei, exposed to thiamethoxam. A 28-day chronic toxicity test followed a 96 h acute toxicity test. Thiamethoxam induced oxidative stress and decreased growth performance in shrimp. In addition, thiamethoxam has led to a substantial imbalance of the micro-ecosystem in the intestine. The composition of the intestinal flora changed significantly, and the balance of the interaction network in genera was broken. The competitive interaction of many bacteria becomes an unstable cooperative interaction. Transcriptomic analysis showed that the numbers of up- and down-regulated differentially expressed genes (DEGs) increased in a dose-dependent manner. These DEGs were significantly enriched in pathways related to detoxification, and the expression of most detoxification genes was upregulated. DEGs related to detoxification were positively correlated with Shimia and negatively correlated with Pseudoalteromonas. This study provides evidence for the first time on the toxic effects of thiamethoxam on the growth, biochemistry, intestinal flora, and transcriptome in crustaceans.
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Affiliation(s)
- Zhenqiang Fu
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, College of Marine Sciences, Hainan University, Haikou, Hainan 570228, China
| | - Fenglu Han
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, College of Marine Sciences, Hainan University, Haikou, Hainan 570228, China
| | - Kaiqi Huang
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, College of Marine Sciences, Hainan University, Haikou, Hainan 570228, China
| | - Jiliang Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Jian G Qin
- School of Biological Sciences, Flinders University, Adelaide, SA 5001, Australia
| | - Liqiao Chen
- School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Erchao Li
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, College of Marine Sciences, Hainan University, Haikou, Hainan 570228, China.
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12
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Hasan M, Sumon KA, Siddiquee MM, Bhandari RK, Prodhan MDH, Rashid H. Thiamethoxam affects the developmental stages of banded gourami (Trichogaster fasciata). Toxicol Rep 2022; 9:1233-1239. [DOI: 10.1016/j.toxrep.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 05/16/2022] [Accepted: 05/21/2022] [Indexed: 10/18/2022] Open
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13
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Peng S, Wang A, Lian Y, Zhang X, Zeng B, Chen Q, Yang H, Li J, Li L, Dan J, Liao J, Zhou S. Smartphone-based molecularly imprinted sensors for rapid detection of thiamethoxam residues and applications. PLoS One 2021; 16:e0258508. [PMID: 34748559 PMCID: PMC8575258 DOI: 10.1371/journal.pone.0258508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/28/2021] [Indexed: 11/19/2022] Open
Abstract
In order to achieve rapid detection of thiamethoxam residues in mango, cowpea and water, this study modified the screen printed carbon electrode (SPCE) to make a specific molecular imprinting sensor (Thiamethoxam-MIP/Au/rGO/SPCE) for thiamethoxam. An integrated smartphone platform was also built for thiamethoxam residue analysis. The performance of the complete system was analyzed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The system was then applied for the rapid determination of thiamethoxam residues in water, mango and cowpea samples. The results showed that the molecular sensor showed good linearity in the range 0.5–3.0 μmol/L of thiamethoxam. The detection limit of thiamethoxam was 0.5 μmol/L. Moreover, the sensor had good reproducibility and anti-interference performance. The average recovery rates of the pesticide residues in water, mango and cowpea samples were in the range of 90–110% with relative standard deviations < 5%. The rapid detection system for thiamethoxam residue constructed in this study was simple, reliable, reproducible and had strong anti-interference. It has broad application prospects in the field detection of thiamethoxam residue, and serves as a valuable reference for the further development of rapid detection technology of pesticide residues in the field of environment and food safety.
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Affiliation(s)
- Sihua Peng
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
- College of Plant Protection, Hainan University, Hainan, China
| | - Aqiang Wang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Yuyang Lian
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Xi Zhang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Bei Zeng
- College of Plant Protection, Hainan University, Hainan, China
| | - Qiulin Chen
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Heming Yang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Jinlei Li
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Limin Li
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Jianguo Dan
- College of Plant Protection, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
| | - Jianjun Liao
- College of Ecology and Environment, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
| | - Shihao Zhou
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
- Key Laboratory of Germplasm Resources Biology of Tropical Special Ornamental Plants, College of Forestry, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
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14
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Chen A, Li W, Zhang X, Shang C, Luo S, Cao R, Jin D. Biodegradation and detoxification of neonicotinoid insecticide thiamethoxam by white-rot fungus Phanerochaete chrysosporium. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126017. [PMID: 34004582 DOI: 10.1016/j.jhazmat.2021.126017] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/02/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
The extensive use of neonicotinoid pesticides in the past two decades caused serious impacts on many kinds of living beings. Therefore, it has been strongly suggested to detoxify and eliminate neonicotinoids' residual levels in environment. Here, the degradation and detoxification of thiamethoxam (THX) by white-rot fungus Phanerochaete chrysosporium was conducted. Results shown that P. chrysosporium can tolerate THX and degraded 49% of THX after incubation for 15 days, and then 98% for 25 days at the initial concentration of 10 mg/L, which indicates the excellent degradation ability of this fungus to THX. Based on the by-products identified, THX underwent dechlorination, nitrate reduction, and C-N cleavage between the 2-chlorothiazole ring and oxadiazine. (Z)-N-(3-methyl-1,3,5-oxadiazinan-4-ylidene)nitramide and 3-methyl-1,3,5-oxadiazinan-4-imine were identified as the main metabolites. The impacts of THX and its corresponding degradation intermediates on the growth of E. coil and Microcystis aeruginosa as well as the germination of rape and cabbage demonstrated that P. chrysosporium effectively degrades THX into metabolites and reduces its biotoxicity. The present work demonstrates that P. chrysosporium can be effectively used for degradation and detoxification of THX.
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Affiliation(s)
- Anwei Chen
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China.
| | - Wenjie Li
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Xiaoxiao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Cui Shang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Si Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Ruoyu Cao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Doudou Jin
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
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15
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Dorn A, Hammel K, Dalkmann P, Faber D, Hellpointner E, Lamshoeft M, Telscher M, Bruns E, Seidel E, Hollert H. What is the actual exposure of organic compounds on Chironomus riparius? - A novel methodology enabling the depth-related analysis in sediment microcosms. CHEMOSPHERE 2021; 279:130424. [PMID: 33887594 DOI: 10.1016/j.chemosphere.2021.130424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/22/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
A novel active sampling method enabled determination of sediment depth profiles revealing the spatial distribution of model compounds N,N-dimethylsulfamide, fluopyram and bixafen (low, medium, high adsorption affinity) in sediment microcosms according to OECD Test 218/219 (Sediment-Water Chironomid Toxicity Test Using Spiked Sediment/Spiked Water). After the overlying water was removed, plastic tubes were inserted into the sediment and the microcosms were frozen. For depth-related analysis, each "sediment core" was mounted in a cutting device and sawed into three 5-mm-slices, respectively (top, middle, bottom). Each slice was centrifuged for sediment and pore water separation. By various sampling dates within 28 days, we could follow the behavior of model compounds depending on sorption affinities and display specific distribution patterns within the sediment. N,N-dimethylsulfamide showing no sediment adsorption, migrated unhindered in (OECD 219) and out (OECD 218) of the sediment via pore water, resulting in homogenous distributions in both test designs. Fluopyram with moderate adsorption affinity revealed a concentration gradient with declining amounts from top to bottom layer (OECD 219) and higher amounts in the middle and bottom layer as compared to the top layer (OECD 218). Bixafen providing a strong adsorption affinity accumulated in the top layer in OECD 219, while no concentration gradients became visible in OECD 218. For establishing a Toxic Substances in Surface Waters (TOXSWA) model, we compared our measurements with simulated results revealing good agreements. The presented methodology is a useful tool to determine more realistic sediment and pore water concentrations, which the Chironomid larvae are exposed to.
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Affiliation(s)
- Alexander Dorn
- Institute of Environmental Research, RWTH Aachen University, 52074, Aachen, Germany; Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany.
| | - Klaus Hammel
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Philipp Dalkmann
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Daniel Faber
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Eduard Hellpointner
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Marc Lamshoeft
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Markus Telscher
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Eric Bruns
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Erika Seidel
- Environmental Safety, Crop Science Division, Bayer, AG, 40789, Monheim, Germany
| | - Henner Hollert
- Institute of Environmental Research, RWTH Aachen University, 52074, Aachen, Germany; Institute of Ecology, Evolution & Diversity, Goethe Universität, 60438, Frankfurt Am Main, Germany
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16
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Pinto TJDS, Rocha GS, Moreira RA, Silva LCMD, Yoshii MPC, Goulart BV, Montagner CC, Daam MA, Espindola ELG. Multi-generational exposure to fipronil, 2,4-D, and their mixtures in Chironomus sancticaroli: Biochemical, individual, and population endpoints. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117384. [PMID: 34030066 DOI: 10.1016/j.envpol.2021.117384] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
Conventional farming delivers a range of pesticides to aquatic ecosystems leading to implications for the indigenous species. Due to the multiple applications and persistence of molecules, organisms may be exposed for a prolonged period over multiple generations. The present study outlines a full life-cycle design over three generations of Chironomus sancticaroli exposed to the insecticide fipronil, the herbicide 2,4-D, and their mixtures. The experiment started with newly hatched larvae from the parental generation and lasted with the emerged adults from the second generation. Five nominal concentrations of fipronil and 2,4-D were tested, as well as six combinations of both pesticides. As additional responses, the total carbohydrates and the lipid classes were evaluated in the parental generation. The first and second generations were more susceptible to the tested compounds compared with the parental ones. Survival of larvae and pupae was decreased by both pesticides and their mixtures along with the generations. Only fipronil impaired the survival of emerged adults. Both pesticides (isolated and in the mixture) altered the emergence and the fraction of males and females. Moreover, the number of eggs produced, and their hatchability decreased. Only one combination of the pesticides increased the content of carbohydrates. Fipronil, 2,4-D, and its mixture altered the profile of the lipid classes. All mixture treatments and the three highest concentrations of fipronil extinguished the population of C. sancticaroli at the end of the first generation. In the remaining treatments with the insecticide, the population did not survive the second generation. Only three concentrations of 2,4-D and the control persisted until the end of the experiment. The results indicate that a prolonged exposition to these pesticides may disrupt the natural populations of exposed organisms with consequences to ecosystems' functioning, considering the importance of chironomids to aquatic and terrestrial environments.
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Affiliation(s)
- Thandy Junio da Silva Pinto
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil.
| | - Giseli Swerts Rocha
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
| | - Raquel Aparecida Moreira
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
| | - Laís Conceição Menezes da Silva
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
| | - Maria Paula Cardoso Yoshii
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
| | - Bianca Veloso Goulart
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Cassiana Carolina Montagner
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Michiel Adriaan Daam
- CENSE, Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516, Caparica, Portugal
| | - Evaldo Luiz Gaeta Espindola
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
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17
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Butcherine P, Kelaher BP, Taylor MD, Lawson C, Benkendorff K. Acute toxicity, accumulation and sublethal effects of four neonicotinoids on juvenile Black Tiger Shrimp (Penaeus monodon). CHEMOSPHERE 2021; 275:129918. [PMID: 33639551 DOI: 10.1016/j.chemosphere.2021.129918] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/25/2021] [Accepted: 02/07/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid pesticides have been detected in aquatic habitats, and exposure may impact the health of aquatic organisms such as commercially-important crustaceans. Black Tiger Shrimp (Penaeus monodon) is a broadly distributed and high-value shrimp species that rely on estuaries for early life stages. Differences in the acute toxicity and accumulation of different neonicotinoids in tissues of commercial crustaceans have not been widely investigated. This study compared acute toxicity, uptake, and depuration of four neonicotinoids; thiamethoxam, clothianidin, acetamiprid, and imidacloprid, on juvenile P. monodon and their effects on enzyme biomarkers. Acute toxicity (48-h LC50) was determined as 190 μg L-1 (clothianidin), 390 μg L-1 (thiamethoxam), 408 μg L-1 (imidacloprid), and >500 μg L-1(acetamiprid). To assess uptake and elimination, shrimp were exposed to a fixed 5 μg L-1 water concentration for eight days (uptake) or four days of exposure followed by four days of depuration (elimination). Neonicotinoid water and tissue concentrations were measured by liquid chromatography-mass spectrometry following solid-phase extraction and QuEChER extraction respectively. The lower toxicity associated with acetamiprid could be associated with lower accumulation in the tissue, with concentrations remaining below 0.01 μg g-1. The activity of acetylcholinesterase, catalase and glutathione S-transferase in abdominal tissues was determined by spectrophotometric assay, with significant sublethal effects detected for all four neonicotinoids. Depuration reduced the tissue concentration of the active ingredient and reduced the activity of oxidative stress enzymes. Given acetamiprid showed no acute toxicity and reduced impact on the enzymatic activity of P. monodon, it may be an appropriate alternative to other neonicotinoids in shrimp producing areas.
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Affiliation(s)
- Peter Butcherine
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, 2450, Australia
| | - Brendan P Kelaher
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, 2450, Australia
| | - Matthew D Taylor
- NSW Department of Primary Industries, Port Stephens Fisheries Institute, Locked Bag 1, Nelson Bay, NSW, 2315, Australia
| | - Corinne Lawson
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, 2450, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, 2450, Australia.
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18
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Liu P, Wu F, Li H, You J. The neonicotinoid alternative sulfoxaflor causes chronic toxicity and impairs mitochondrial energy production in Chironomus kiinensis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 235:105822. [PMID: 33823484 DOI: 10.1016/j.aquatox.2021.105822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
Unintentional environmental consequences caused by neonicotinoids reinforce the development of safer alternatives. Sulfoxaflor is considered such an alternative. However, ecological risk of sulfoxaflor remains largely unknown. Here, we investigated the acute and chronic toxicity of sulfoxaflor to a benthic invertebrate, Chironomus kiinensis. Sulfoxaflor showed lower lethality than imidacloprid to midges, with LC50 values of 84.1 (81.5-87.3), 66.3 (34.8-259), and 47.5 (29.5-306) μg/L for 96-h, 10-d, and 23-d exposures, respectively. Conversely, sulfoxaflor significantly inhibited C. kiinensis growth and emergence in chronic exposures when concentrations were above 20 μg/L. Effects on energy production were assessed through in vitro tests using mitochondria isolated from C. kiinensis. Sulfoxaflor disrupted mitochondrial state-3 respiration, meanwhile, adenosine triphosphatase (ATPase) activity and adenosine triphosphate (ATP) production were both inhibited in a dose-dependent manner. The observed mitochondrial dysfunction may be related to the decreased organismal growth and emergence, which could further influence biodiversity. Interestingly, sulfoxaflor uptake in C. kiinensis was detected even after emergence, implying its potential to be transported along food webs and among environmental compartments. This study provides thorough investigations on the toxicity of an emerging neonicotinoid alternative to Chironomidae. Data derived from the current study are useful to inform future ecological risk assessment and benefit problem-solving to the overall agriculture-environment nexus.
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Affiliation(s)
- Peipei Liu
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China
| | - Fan Wu
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China.
| | - Huizhen Li
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China
| | - Jing You
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China
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19
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Muñiz-González AB, Novo M, Martínez-Guitarte JL. Persistent pesticides: effects of endosulfan at the molecular level on the aquatic invertebrate Chironomus riparius. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31431-31446. [PMID: 33608783 DOI: 10.1007/s11356-021-12669-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Although banned in multiple areas, due to its persistence in the environment, endosulfan constitutes a significant environmental concern. In this work, fourth instar Chironomus riparius larvae were exposed at environmentally relevant endosulfan concentrations of 0.1, 1, and 10 μg/L for 24 h to analyze the possible effects of this acaricide on gene expression and enzymatic activity. Transcriptional changes were studied through the implementation of a real-time polymerase chain reaction array with 42 genes related to several metabolic pathways (endocrine system, detoxification response, stress response, DNA reparation, and immune system). Moreover, glutathione-S-transferase (GST), phenoloxidase (PO), and acetylcholinesterase (AChE) activities were assessed. The five pathways were differentially altered by endosulfan exposure with significant changes in the E93, Dis, MAPR, Met, InR, GSTd3, GSTt3, MRP1, hsp70, hsp40, hsp24, ATM, PARP, Proph, and Def genes. Besides, all of the measured enzymatic activities were modified, with increased activity of GST, followed by PO and AChE. In summary, the results reflected the effects provoked in C. riparius at molecular level despite the absence of lethality. These data raise concerns about the strong alteration on different metabolic routes despite the low concentrations used. Therefore, new risk assessment strategies should consider include the effects at the sub-organismal level as endpoints in addition to the classical ecologically relevant parameters (such as survival). This endeavor will facilitate a comprehensive evaluation of toxicants in the environment.
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Affiliation(s)
- Ana-Belén Muñiz-González
- Environmental Biology and Toxicology Group, Department of Mathematical and Fluid Physics, National University of Distance Education, UNED, Senda del Rey 9, 28040, Madrid, Spain.
| | - Marta Novo
- Biodiversity, Ecology and Evolution Department, Faculty of Biology, Complutense University of Madrid, Madrid, Spain
| | - José-Luis Martínez-Guitarte
- Environmental Biology and Toxicology Group, Department of Mathematical and Fluid Physics, National University of Distance Education, UNED, Senda del Rey 9, 28040, Madrid, Spain
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20
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Macaulay SJ, Hageman KJ, Piggott JJ, Matthaei CD. Time-cumulative effects of neonicotinoid exposure, heatwaves and food limitation on stream mayfly nymphs: A multiple-stressor experiment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:141941. [PMID: 33254881 DOI: 10.1016/j.scitotenv.2020.141941] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/19/2020] [Accepted: 08/22/2020] [Indexed: 05/12/2023]
Abstract
The global intensification of agriculture has resulted in pesticides playing an increasingly important role as anthropogenic stressors and drivers of environmental change. There is also a growing need to determine if other environmental stressors, especially those predicted to worsen with climate change, interact with pesticides to alter their effects on non-target biota. Two such stressors are increased extreme temperature events and periods of food limitation. This study is the first to investigate the combined effects of the world's most widely used insecticide, imidacloprid, with heatwaves and food limitation on a freshwater animal. A 6-week, full-factorial laboratory experiment with Deleatidium spp. mayfly nymphs was performed to investigate the potential for direct and delayed interactive effects of simulated heatwaves and starvation with chronic exposure to a field-realistic concentration of imidacloprid (0.4 μg/L). The experiment included two 6-day simulated heatwaves, one during a starvation period prior to imidacloprid addition, and one during the first 6 days of imidacloprid exposure. The simulated heatwaves alone caused such drastic negative effects on Deleatidium survival and mobility that mainly antagonistic interactions were observed with the other stressors, though delayed synergisms between imidacloprid and the second heatwave also affected mayfly mobility. Time-cumulative toxicity of imidacloprid was evident, with imidacloprid first affecting mayfly mobility after 12 days but eventually causing the strongest effects of all manipulated stressors. However, lethal effects of imidacloprid could only be detected in the absence of heatwaves and starvation, possibly as a result of selection for stronger individuals due to prior exposure to these stressors. Our findings demonstrate that heatwaves of increasing severity will critically affect sensitive freshwater organisms such as mayflies, and that the impacts of widespread pesticide use on freshwater ecosystems under global climate change cannot be ignored.
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Affiliation(s)
- Samuel J Macaulay
- Department of Zoology, University of Otago, 340 Great King Street, Dunedin 9016, New Zealand.
| | - Kimberly J Hageman
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322-0305, USA
| | - Jeremy J Piggott
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Christoph D Matthaei
- Department of Zoology, University of Otago, 340 Great King Street, Dunedin 9016, New Zealand
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21
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Ewere EE, Reichelt-Brushett A, Benkendorff K. The neonicotinoid insecticide imidacloprid, but not salinity, impacts the immune system of Sydney rock oyster, Saccostrea glomerata. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140538. [PMID: 32634691 DOI: 10.1016/j.scitotenv.2020.140538] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/12/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
The broad utilisation of neonicotinoids, particularly imidacloprid (IMI), in agriculture has led to unplanned contamination of aquatic systems around the world. The sublethal effects of individual pesticides on the immune system of oysters, as well as their combined effects with other environmental stressors that fluctuate in estuarine environments, such as salinity, are yet to be investigated in ecotoxicology. We investigated the acute (4 d) toxicity of IMI in two salinity regimes on the immune parameters of Sydney rock oysters (SRO), including total hemocyte counts (THC), differential hemocyte counts (DHC), phagocytosis and hemocyte aggregation (HA), hemolymph protein expression and enzyme (catalase (CAT), glutathione S-transferase (GST) and acetylcholinesterase (AChE)) activities. Environmentally relevant concentrations of IMI were found to cause an increase in THC, induce GST activity, reduce HA, and inhibit AChE activity. However, DHC, CAT activity and phagocytosis were not significantly impacted at any test concentration at either salinity. IMI concentrations ≥0.01 mg/L significantly altered the expression of 28 proteins in the hemolymph of SRO, including an increase in the relative expression of extracellular superoxide dismutase, severin, ATP synthase subunit beta, as well as stress response proteins (heat shock proteins, serine/threonine-protein kinase DCLK3 and peroxiredoxin-1), and a decrease/absence of collagen alpha-4 (VI) and alpha-6 (VI) chain, metalloendopeptidase, L-ascorbate oxidase, transporter, CEP209_CC5 domain-containing protein and actin. This study indicates that the immune system of SRO can be impacted at environmentally relevant concentrations of IMI, but reduced salinity does not appear to influence the toxicity of this insecticide.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Amanda Reichelt-Brushett
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia.
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22
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Moreira RA, de Araujo GS, Silva ARRG, Daam MA, Rocha O, Soares AMVM, Loureiro S. Effects of abamectin-based and difenoconazole-based formulations and their mixtures in Daphnia magna: a multiple endpoint approach. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:1486-1499. [PMID: 32388636 DOI: 10.1007/s10646-020-02218-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
This study evaluated the toxicity of pesticide formulations Kraft® 36 EC (active ingredient-a.i. abamectin) and Score® 250 EC (a.i. difenoconazole), and their mixtures in Daphnia magna at different biological levels of organization. Survival, reproduction and biochemical markers (cholinesterase (ChE), catalase (CAT) and lipid peroxidation (LPO)) were some of the endpoints evaluated. Total proteins and lipids were also studied together with energy consumption (Ec). D. magna neonates were exposed for 96 h to Kraft (2, 4, and 6 ng a.i./L) and Score (12.5, 25, and 50 µg a.i./L) for the biochemical experiments, and for 15 days to abamectin (1-5 ng a.i./L) and to difenoconazole (3.12-50 µg a.i./L) to assess possible changes in reproduction. Exposures of organisms to both single compounds did not cause effects to antioxidant and detoxifying enzymes, except for LPO occurring at the highest concentration of difenoconazole tested. For ChE and CAT there was enzymatic induction in mixture treatments organisms, occurring at minor pesticides concentrations for CAT and at the two highest concentrations for ChE. There were no significant differences for total protein in D. magna but lipids showed an increase at the highest concentrations of pesticide mixture combinations. There was a significant increase of Ec in individuals of all treatments tested. In the chronic test, increased fecundity occurred for D. magna under difenoconazole exposures and mixtures. This study demonstrated that mixtures of these pesticides caused greater toxicity to D. magna than when tested individually, except for Ec. Therefore, effects of mixtures are very hard to predict only based on information from single compounds, which most possibly is the result of biological complexity and redundancy in response pathways, which need further experimentation to become better known.
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Affiliation(s)
- Raquel Aparecida Moreira
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13.560-970, Brazil.
| | | | | | - Michiel Adriaan Daam
- CENSE, Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516, Caparica, Portugal
| | - Odete Rocha
- Department of Ecology and Evolutionary Biology, Federal University of São Carlos, Rodovia Washington Luis, km 235, São Carlos, SP, 13565-905, Brazil
| | - Amadeu M V M Soares
- Department of Biology & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Susana Loureiro
- Department of Biology & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
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23
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Saraiva AS, Sarmento RA, Gravato C, Rodrigues ACM, Campos D, Simão FCP, Soares AMVM. Strategies of cellular energy allocation to cope with paraquat-induced oxidative stress: Chironomids vs Planarians and the importance of using different species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 741:140443. [PMID: 32887009 DOI: 10.1016/j.scitotenv.2020.140443] [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: 04/28/2020] [Revised: 06/20/2020] [Accepted: 06/21/2020] [Indexed: 05/22/2023]
Abstract
Paraquat (PQ) is still used in several countries worldwide as an herbicide for weed control in agricultural production, ponds, reservoirs and irrigation canals. Thus, PQ is frequently found in surface water systems and is potentially toxic to aquatic organisms, since it can cause mitochondrial dysfunction altering in the redox state of cells. This study aimed to investigate the chronic effects of PQ to Chironomus riparius and Girardia tigrina, and compare their physiological strategies to cope with environmental stress. The mean emergence time was the most sensitive endpoint for Chironomids, with the lowest observed effect concentrations (LOEC) being 0.02 for males and 0.1 mg PQ L-1 for females. Moreover, PQ reduced the body weight of male and female imagoes, with LOECs of 0.5 and 2.5 mg PQ L-1, respectively. Paraquat also decreased the respiration rate (LOEC = 2.5 mg PQ L-1) and total glutathione (tGSH) content (LOEC = 0.5 mg PQ L-1). Thus, the aerobic production of energy was not affected and allowed chironomids to cope with oxidative stress induced by PQ, but with consequent physiological costs in terms of development rates and weight of adults. In planarians, PQ decreased the locomotion and feeding activity, and delayed photoreceptor regeneration (LOECs = 2.5 mg PQ L-1 for all endpoints). Despite increased aerobic energy production (LOEC = 0.5 mg PQ L-1), planarians were not able to cope with oxidative stress induced by the highest PQ concentrations, since lipid peroxidation levels were significantly increased (LOEC = 2.5 mg PQ L-1) concomitantly with a significant decrease of tGSH (LOEC = 2.5 mg PQ L-1). These results showed that planarians were unable to cope with oxidative stress induced by PQ with consequent impairments of behavior and regeneration despite an increased aerobic energy production.
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Affiliation(s)
- Althiéris S Saraiva
- Departamento de Agropecuária (Conservação de Agroecossistemas e Ecotoxicologia), Instituto Federal de Educação, Ciência e Tecnologia, Goiano - Campus Campos Belos, 73840-000 Campos Belos, Goiás, Brazil
| | - Renato A Sarmento
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Tocantins, Campus Universitário de Gurupi, 77402-970 Gurupi, Tocantins, Brazil
| | - Carlos Gravato
- Faculdade de Ciências & CESAM, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Andreia C M Rodrigues
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Diana Campos
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Fátima C P Simão
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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24
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Silvestre Pereira Dornelas A, A Sarmento R, C Rezende Silva L, de Souza Saraiva A, J de Souza D, D Bordalo M, Mvm Soares A, Lt Pestana J. Toxicity of microbial insecticides toward the non-target freshwater insect Chironomus xanthus. PEST MANAGEMENT SCIENCE 2020; 76:1164-1172. [PMID: 31595634 DOI: 10.1002/ps.5629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 09/13/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Commercial formulations based on Bacillus thuringiensis subs. kurstaki (Btk) and Beauveria bassiana (Bb) are commonly used microbial insecticides in Brazil and other tropical regions. However, and despite being considered environmentally friendly, their use generates concerns regarding possible adverse ecological effects in freshwater ecosystems. Here, we evaluate the effects of these bioinsecticides on the tropical aquatic dipteran Chironomus xanthus under laboratory conditions. RESULTS After laboratory exposures to these compounds 48-h median lethal concentration (LC50 ) values of 1534 μg a.i./L for Btk and of 6.35 μg a.i./L for Bb were estimated. Chronic assays revealed different sublethal effects: Btk-based bioinsecticide exposure reduced C. xanthus growth [lowest observed effect concentration (LOEC) was 126 μg a.i./L for head width], decreased emergence rate (LOEC = 8 μg a.i./L) and increased immunological response (LOEC = 50 μg a.i./L) measured as total hemocyte count in larvae hemolymph. Exposure to low concentrations of Bb-based insecticide also reduced C. xanthus growth (LOEC = 0.07 μg a.i./L for larvae body length measurements), and emergence rate (LOEC = 0.28 μg a.i./L), despite no clear effects on the total hemocyte counts. CONCLUSION Our results suggest that low concentrations of Btk and Bb bioinsecticides are toxic to C. xanthus. Given their widespread use and occurrence in tropical freshwater systems, research is needed to evaluate the potential effects of these compounds concerning natural freshwater insect communities and ecosystem functioning. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | - Renato A Sarmento
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Tocantins, Gurupi, Brazil
| | | | - Althiéris de Souza Saraiva
- Departamento de Agropecuária (Conservação de Agroecossistemas e Ecotoxicologia), Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Campos Belos, Campos Belos, Brazil
| | - Danival J de Souza
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Tocantins, Gurupi, Brazil
| | - Maria D Bordalo
- Departamento de Biologia & CESAM, Universidade de Aveiro, Aveiro, Portugal
| | - Amadeu Mvm Soares
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Tocantins, Gurupi, Brazil
- Departamento de Biologia & CESAM, Universidade de Aveiro, Aveiro, Portugal
| | - João Lt Pestana
- Departamento de Biologia & CESAM, Universidade de Aveiro, Aveiro, Portugal
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25
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Muñiz-González AB, Martínez-Guitarte JL. Combined effects of benzophenone-3 and temperature on gene expression and enzymatic activity in the aquatic larvae Chironomus riparius. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134292. [PMID: 31514035 DOI: 10.1016/j.scitotenv.2019.134292] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 06/14/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Climate change and pollution are two of the main environmental problems living organisms currently face. Temperature can modify a toxicant's effects and the organism's response to it. Global warming is expected to increase the temperature of freshwater ecosystems. In this work, we analyzed the effect of a mild temperature increase on the acute response of the aquatic larvae Chironomus riparius to the ultraviolet filter benzophenone-3 (BP3). This substance is commonly used in sunscreens and other commercial products and can reach the environment in different ways. We exposed larvae to BP3 at 18.5 or 23 °C for 8 or 24 h and analyzed the acute response at the molecular level. By quantitative real-time polymerase chain reaction (q-PCR), we studied altered messenger RNA (mRNA) levels of genes related to the endocrine system (EcR, InR and Met), detoxification mechanisms (Cyp4d2, Cyp6b7, GST d6, GST o1 and MRP-1) and stress response (Hsp22, Hsp27, Hsp70, HYOU and Gp93). Moreover, enzyme activity was evaluated, with a focus on glutathione-S-transferase (GST), phenoloxidase (PO) and acetylcholinesterase (AChE). Results showed that temperature affected the acute response of this organism by modifying the expression of EcR, Cyp6b7, GST d6, GST o1, MRP-1, Hsp22, Hsp27 and Hsp70 genes. These results suggest that even mild temperature change can affect the response of this organism to BP3 influencing short-term progress of the population. Although longer exposures are required to determine the ability of C. riparius to manage the pollutants in this novel environmental conditions, in order to know the possible mechanisms of detoxification or adaptation that may develop. This research represents a first step in the analysis of multi-stress response in this animal, and opens new possibilities in the toxicity evaluation of this organism in line with the real scenario that organisms face today.
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Affiliation(s)
- Ana-Belén Muñiz-González
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040 Madrid, Spain.
| | - José-Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040 Madrid, Spain
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26
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Macaulay SJ, Hageman KJ, Alumbaugh RE, Lyons SM, Piggott JJ, Matthaei CD. Chronic Toxicities of Neonicotinoids to Nymphs of the Common New Zealand Mayfly Deleatidium spp. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2459-2471. [PMID: 31373707 DOI: 10.1002/etc.4556] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/19/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Neonicotinoid insecticides have been shown to have high chronic toxicity relative to acute toxicity, and therefore short-term toxicity tests ≤96 h in duration may underestimate their environmental risks. Among nontarget aquatic invertebrates, insects of the orders Diptera and Ephemeroptera have been found to be the most sensitive to neonicotinoids. To undertake a more accurate assessment of the risks posed by neonicotinoids to freshwater ecosystems, more data are needed from long-term tests employing the most sensitive taxa. Using nymphs of the common New Zealand mayfly genus Deleatidium spp., we performed 28-d static-renewal exposures with the widely used neonicotinoids imidacloprid, clothianidin, and thiamethoxam. We monitored survival, immobility, impairment, and mayfly moulting propensity at varying time points throughout the experiment. Imidacloprid and clothianidin exerted strong chronic toxicity effects on Deleatidium nymphs, with 28-d median lethal concentrations (LC50s) of 0.28 and 1.36 µg/L, respectively, whereas thiamethoxam was the least toxic, with a 28-d LC50 > 4 µg/L (highest concentration tested). Mayfly moulting propensity was also negatively affected by clothianidin (during 3 of 4 wk), imidacloprid (2 of 4 wk), and thiamethoxam (1 of 4 wk). Comparisons with published neonicotinoid chronic toxicity data for other mayfly taxa and larvae of the midge genus Chironomus showed similar sensitivities for mayflies and midges, suggesting that experiments using these taxa provide reliable assessments of the threats of neonicotinoids to the most vulnerable freshwater species. Environ Toxicol Chem 2019;38:2459-2471. © 2019 SETAC.
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Affiliation(s)
- Samuel J Macaulay
- Department of Zoology, University of Otago, Dunedin, Otago, New Zealand
| | - Kimberly J Hageman
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah, USA
| | - Robert E Alumbaugh
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah, USA
| | - Sean M Lyons
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah, USA
| | - Jeremy J Piggott
- Department of Zoology, Trinity College Dublin, The University of Dublin, Dublin, Ireland
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27
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Ewere EE, Reichelt-Brushett A, Benkendorff K. Imidacloprid and formulated product impacts the fatty acids and enzymatic activities in tissues of Sydney rock oysters, Saccostrea glomerata. MARINE ENVIRONMENTAL RESEARCH 2019; 151:104765. [PMID: 31353171 DOI: 10.1016/j.marenvres.2019.104765] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/19/2019] [Accepted: 07/21/2019] [Indexed: 06/10/2023]
Abstract
The use of imidacloprid (IMI) and its formulated products in agriculture is a risk to aquatic organisms due to deposition into waterways from runoff and aerial spraying. However, there is limited information on the potential effects of this pesticide on commercially important shellfish, such as oysters. We investigated the impacts of IMI and Spectrum 200SC (IMI formulation) on the activity of the enzymes Glutathione-S-transferase (GST), Catalase (CAT) and Acetylcholinesterase (AChE), in different oyster tissues including the gill, adductor muscle and digestive gland. We also investigated the condition index and fatty acid composition of the flesh of oysters after 2 weeks exposure. The concentrations of IMI in the different tissues was assessed using Liquid Chromatography-Mass Spectrometry (LC-MS) after QuEChERS extraction. Higher concentrations of IMI residues were detected in the adductor muscle of the oysters, followed by the gills and with the lowest amounts recovered from the digestive gland across all the concentrations tested. IMI and Spectrum 200SC significantly affected the gill AChE activity at 2 mg/L, but digestive gland CAT, and gill and digestive gland GST were impacted at environmentally relevant concentrations (0.01 and 0.05 mg/L). In the whole oyster, 2 weeks exposure to IMI (≥0.01 mg/L) resulted in a proportional increase in saturated fatty acids (SFA), altered the polyunsaturated fatty acid (PUFA) to SFA ratio and altered the omega 3 fatty acids (n-3) to omega 6 fatty acids (n-6) ratio, but there were no effects on the condition index of the oyster. Although the oysters responded differently to the formulated product, there was no consistent difference in the sublethal effects of analytical IMI and Spectrum 200SC. This study showed that exposure to IMI and Spectrum 200SC can significantly affect the biochemical processes and metabolites in oysters, with implications for food quality and safety.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia; Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Amanda Reichelt-Brushett
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia.
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28
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Ewere EE, Powell D, Rudd D, Reichelt-Brushett A, Mouatt P, Voelcker NH, Benkendorff K. Uptake, depuration and sublethal effects of the neonicotinoid, imidacloprid, exposure in Sydney rock oysters. CHEMOSPHERE 2019; 230:1-13. [PMID: 31100675 DOI: 10.1016/j.chemosphere.2019.05.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/26/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
The broad utilisation of imidacloprid (IMI) in agriculture poses an increasing risk to aquatic organisms. However, the potential impacts on commercially important shellfish and chemical residues after exposure, are yet to be assessed. We investigated the levels of IMI in Sydney rock oyster (SRO) tissue during a three-day uptake and four-day depuration cycle using liquid chromatography-mass spectrometry. IMI was absorbed from the water, with significantly higher concentrations in the adductor muscles than the gills and digestive glands. Depuration was also fast with a significant drop in tissue concentrations after one day in clean water and complete elimination from all tissues except the digestive gland after four days. The distribution of IMI in SRO after direct exposure using mass spectrometry imaging demonstrated uptake and spatially resolved metabolism to hydroxyl-IMI in the digestive gland and IMI-olefin in the gills. We assessed the effects of IMI on filtration rate (FR), acetylcholinesterase (AChE) activity in the gills, and gene expression profiles in the digestive gland using transcriptomics. Exposure to 2 mg/L IMI reduced the FR of oysters on the first day, while exposure to 0.5 and 1 mg/L reduced FR on day four. IMI reduced the gill AChE activity and altered the digestive gland gene expression profile. This study indicates that commercially farmed SRO can uptake IMI from the water, but negative impacts were only detected at concentrations higher than currently detected in estuarine environments and the chemical residues can be effectively eliminated using simple depuration in clean water.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Daniel Powell
- Centre for Genetics, Ecology and Physiology, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia; Department of Biology, Lund University, Sölvegatan 37, 223 62, Lund, Sweden
| | - David Rudd
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia; Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, 3168, Australia
| | - Amanda Reichelt-Brushett
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Peter Mouatt
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW, 2480 Australia
| | - Nicolas H Voelcker
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia; Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, 3168, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia.
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29
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Feki A, Ben Saad H, Bkhairia I, Ktari N, Naifar M, Boudawara O, Droguet M, Magné C, Nasri M, Ben Amara I. Cardiotoxicity and myocardial infarction-associated DNA damage induced by thiamethoxam in vitro and in vivo: Protective role of Trigonella foenum-graecum seed-derived polysaccharide. ENVIRONMENTAL TOXICOLOGY 2019; 34:271-282. [PMID: 30520268 DOI: 10.1002/tox.22682] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/24/2018] [Accepted: 11/03/2018] [Indexed: 06/09/2023]
Abstract
The risk of pesticides on the human health and environment has drawn increasing attention. Today, new tools are developed to reduce pesticide adverse effects. This study aimed to evaluate the toxicity induced by, thiamethoxam (TMX), and the cytoprotective effect of a novel polysaccharide, named fenugreek seed water polysaccharide (FWEP) in vitro using H9c2 cardiomyoblastes and in vivo using Wistar rat model. Animals were assigned into four groups per eight rats each: group 1 served as a control group, group 2 received TMX, group 3, and group 4 received both FWEP and TMX tested at two doses (100 and 200 mg/kg, respectively). Regarding the in vitro study, our results demonstrated that TMX induced a decrease in H9c2 cell viability up to 70% with the highest concentration. In vivo, TMX injection induced marked heart damage noted by a significant increase in plasma lactate dehydrogenase, creatine phosphokinase, troponin-T, aspartate amino transferase activities, cholesterol, and triglyceride levels. Concomitant alterations in cardiac antioxidant defense system revealed depletion in the levels of glutathione and non-protein thiol and an increase in the activity of superoxide dismutase, catalase, and glutathione peroxidase. Similarly, a significant increase in heart lipid, malondialdehyde, advanced oxidation protein product and in protein carbonyls levels was also noted. In addition, heart tissues histo-architecture displayed major presence of apoptosis and necrosis as confirmed by DNA degradation. However, supplementation with FWEP alleviated heart oxidative damage and genotoxicity. In this manner, ABTS radical-scavenging activity, linoleic acid oxidation tests and heart genomic and DNA nicking assay had proved FWEP strong antioxidant potential. In conclusion, FWEP provided significant protection against TMX-induced heart injury, and could be a useful and efficient agent against cardiotoxicity and atherosclerosis.
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Affiliation(s)
- Amal Feki
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Hajer Ben Saad
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Intidhar Bkhairia
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Naourez Ktari
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Manel Naifar
- Hematology laboratory, CHU Habib Bourguiba, University of Sfax, Sfax, Tunisia
| | - Ons Boudawara
- Anatomopathology laboratory, CHU Habib Bourguiba, University of Sfax, Sfax, Tunisia
| | - Mickaël Droguet
- ORPHY, Optimization of Physiological Regulation, EA4324, Brest Institute of Health, Agronomy and Material (IBSAM), Faculty of Medicine and Health Sciences, University of Western Brittany, Brest, France
| | - Christian Magné
- EA 7462 Géoarchitecture_TUBE, UFR Sciences & Techniques, University of Brest, Brest, France
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Ibtissem Ben Amara
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
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Butcherine P, Benkendorff K, Kelaher B, Barkla BJ. The risk of neonicotinoid exposure to shrimp aquaculture. CHEMOSPHERE 2019; 217:329-348. [PMID: 30419387 DOI: 10.1016/j.chemosphere.2018.10.197] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/26/2018] [Accepted: 10/29/2018] [Indexed: 06/09/2023]
Abstract
Widespread agricultural use of systemic neonicotinoid insecticides has resulted in the unintended contamination of aquatic environments. Water quality surveys regularly detect neonicotinoids in rivers and waterways at concentrations that could impact aquaculture stock. The toxicity of neonicotinoids to non-target aquatic insect and crustacean species has been recognised, however, there is a paucity of information on their effect on commercial shrimp aquaculture. Here, we show that commercially produced shrimp are likely to be exposed to dietary, sediment and waterborne sources of neonicotinoids; increasing the risks of disease and accidental human consumption. This review examines indicators of sublethal neonicotinoid exposure in non-target species and analyses their potential usefulness for ecotoxicology assessment in shrimp. The identification of rapid, reliable responses to neonicotinoid exposure in shrimp will result in better decision making in aquaculture management.
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Affiliation(s)
- Peter Butcherine
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.
| | - Brendan Kelaher
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia.
| | - Bronwyn J Barkla
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.
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31
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Non-target toxicity of novel insecticides. Arh Hig Rada Toksikol 2018; 69:86-102. [PMID: 29990301 DOI: 10.2478/aiht-2018-69-3111] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/01/2018] [Indexed: 01/04/2023] Open
Abstract
Humans have used insecticides since ancient times. The spectrum and potency of available insecticidal substances has greatly expanded since the industrial revolution, resulting in widespread use and unforeseen levels of synthetic chemicals in the environment. Concerns about the toxic effects of these new chemicals on non-target species became public soon after their appearance, which eventually led to the restrictions of use. At the same time, new, more environmentally-friendly insecticides have been developed, based on naturally occurring chemicals, such as pyrethroids (derivatives of pyrethrin), neonicotinoids (derivatives of nicotine), and insecticides based on the neem tree vegetable oil (Azadirachta indica), predominantly azadirachtin. Although these new substances are more selective toward pest insects, they can still target other organisms. Neonicotinoids, for example, have been implicated in the decline of the bee population worldwide. This review summarises recent literature published on non-target toxicity of neonicotinoids, pyrethroids, and neem-based insecticidal substances, with a special emphasis on neonicotinoid toxicity in honeybees. We also touch upon the effects of pesticide combinations and documented human exposure to these substances.
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32
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Muñiz-González AB, Martínez-Guitarte JL. Effects of single exposure and binary mixtures of ultraviolet filters octocrylene and 2-ethylhexyl 4-(dimethylamino) benzoate on gene expression in the freshwater insect Chironomus riparius. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:35501-35514. [PMID: 30350147 DOI: 10.1007/s11356-018-3516-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 10/17/2018] [Indexed: 06/08/2023]
Abstract
Ultraviolet filters are used extensively in the production of many personal care and industrial products. These products can inadvertently pollute the environment through recreational activities. They have been associated with endocrine disruption in vertebrates but their effects in invertebrates are poorly understood. Chironomus riparius is a species of the dipteran order, with aquatic larvae that are frequently used in toxicity tests. Previously, we showed that octocrylene (OC) and 2-ethylhexyl 4-(dimethylamino) benzoate (OD-PABA) differentially affected the mRNA levels of the ecdysone receptor and Hsp70 genes. For a better understanding of their mode of action, transcriptional activity by real-time PCR was analyzed in fourth instar larvae exposed to OC, OD-PABA, or a binary mixture of both. We studied 16 genes related to the endocrine system, stress, the immune system, and biotransformation mechanisms to elucidate the putative interactions between these compounds. No response was observed for the genes involved in biotransformation, suggesting that enzymes other than cytochromes P450 and glutathione-S-transferases (GSTs) could get involved in transformation of these compounds. Similarly, no response was observed for endocrine-related genes while the stress gene HYOU1 was inhibited by OD-PABA, suggesting an effect in response to hypoxia. In addition, no significant interactions were observed following exposure to a binary mixture of these compounds. Overall, the results suggest a weak, acute response in different metabolic pathways and a lack of interaction between the compounds. Finally, new genes are identified in this organism, opening the possibility to analyze new cellular pathways as targets of toxicants.
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Affiliation(s)
- Ana-Belén Muñiz-González
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040, Madrid, Spain
| | - José-Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040, Madrid, Spain.
- Facultad de Ciencias, UNED, Paseo de la Senda del Rey 9, 28040, Madrid, Spain.
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Ling SQ, Xu YN, Gu YP, Liu SY, Tang WW. Toxicity and biochemical effects of itol A on the brown planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 152:90-97. [PMID: 30497717 DOI: 10.1016/j.pestbp.2018.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/08/2018] [Accepted: 09/14/2018] [Indexed: 06/09/2023]
Abstract
Itol A, a novel isoryanodane diterpene derived from Itoa orientalis Hemsl., has potent activities against insect pests. This study was conducted to determine the contact toxicity and biochemical effects of itol A on the Nilaparvata lugens. After macropterous females of N. lugens were exposed to itol A from 0.5 to 24 h, the mortality and poisoning symptoms were measured. Effects of itol A on the major enzymes activity and oxidative stress level were assessed in dose-response (with LD10-LD70 at 24 h) and time-course (with LD50 at 0.5-24 h) experiments for the potential toxicity mechanisms. Based on the results, the mortality of N. lugens showed significant dose- and time-dependent effects, with the 24-h LD50 value was 0.58 μg/insect. The symptoms of excitation, convulsion and paralysis were also observed. However, acetylcholinesterases (AChE) activity was not altered after itol A treatment compared to control. Na+/K+-ATPases, Ca2+-ATPases, Ca2+/Mg2+-ATPases, glutathione S-transferases (GSTs), cytochrome P450 monooxygenases (P450s), superoxide dismutases (SOD) and catalases (CAT) activities were significantly reduced in dose-response and time-course experiments. While acid phosphatases (ACP) and glutathione peroxidases (GPX) activities were significantly increased. We further revealed that itol A exposure resulted in the decrease of GSH/GSSG (reduced to oxidized glutathione) ratio and the increase of hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels in both experiments. The results indicated that the inhibition of Na+/K+-ATPases, Ca2+-ATPases, Ca2+/Mg2+-ATPases, GSTs, P450s, SOD and CAT activities and the induction of oxidative stress was one of the potential biochemical mechanisms of itol A against N. lugens.
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Affiliation(s)
- Si-Quan Ling
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Ya-Nan Xu
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Yan-Ping Gu
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Shu-Yu Liu
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Wen-Wei Tang
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning 530004, Guangxi, People's Republic of China.
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34
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Njattuvetty Chandran N, Fojtova D, Blahova L, Rozmankova E, Blaha L. Acute and (sub)chronic toxicity of the neonicotinoid imidacloprid on Chironomus riparius. CHEMOSPHERE 2018; 209:568-577. [PMID: 29957517 DOI: 10.1016/j.chemosphere.2018.06.102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Impacts of neonicotinoids on non-target insects, including aquatic species, may significantly influence ecosystem structure and functioning. The present study investigated the sensitivity of Chironomus riparius to imidacloprid exposures during 24-h, 10- and 28-days by assessing larval survival, growth, emergence and oxidative stress-related parameters. C. riparius exhibited high sensitivity compared to other model aquatic species with acute 24-h LC50 being 31.5 μg/L and 10-days LOEC (growth) 0.625 μg/L. A 28-days partial life cycle test demonstrated imidacloprid effects on the emergence of C. riparius. Exposure to sublethal concentrations during 10-days caused an imbalance in the reduced and oxidized glutathione (GSH and GSSG), and slightly induced lipid peroxidation (increased malondialdehyde, MDA). Our results indicate that oxidative stress may be a relevant mechanism in the neonicotinoid toxicity, reflected in the insect development and life cycle parameters.
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Affiliation(s)
| | - Dana Fojtova
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 625 00, Brno, Czech Republic
| | - Lucie Blahova
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 625 00, Brno, Czech Republic
| | - Eliska Rozmankova
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 625 00, Brno, Czech Republic
| | - Ludek Blaha
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 625 00, Brno, Czech Republic.
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35
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Raby M, Zhao X, Hao C, Poirier DG, Sibley PK. Chronic toxicity of 6 neonicotinoid insecticides to Chironomus dilutus and Neocloeon triangulifer. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:2727-2739. [PMID: 30055027 DOI: 10.1002/etc.4234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/02/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
Neonicotinoid insecticides are frequently detected in surface waters near agricultural areas, leading to a potential for chronic exposure to sensitive aquatic species. The midge Chironomus dilutus and the mayfly Neocloeon triangulifer have been shown to be acutely sensitive to neonicotinoids. Previous studies have established chronic effects of some neonicotinoids on C. dilutus, but reproduction has not been studied. Toxic effects have not been assessed using N. triangulifer. We present the results of chronic, static-renewal tests for 6 neonicotinoids (acetamiprid, clothianidin, dinotefuran, imidacloprid, thiacloprid, and thiamethoxam) with C. dilutus (≤56-d in length) and N. triangulifer (≤32-d in length). Emergence was generally the most sensitive endpoint for both species across all neonicotinoids. Effect concentrations, 10% (EC10s; emergence) were 0.03 to 1.1 μg L-1 for acetamiprid, clothianidin, imidacloprid, and thiacloprid. Dinotefuran and thiamethoxam were less potent, with EC10s (C. dilutus) or median effect concentrations (EC50s; N. triangulifer) of 2.2 to 11.2 μg L-1 . Hazard was assessed through comparison of neonicotinoid environmental concentrations from agricultural surface waters in Ontario (Canada) with either the 5th percentile hazard concentration (for imidacloprid) or species-specific EC10s from the present study (for all remaining neonicotinoids). The resulting hazard quotients (HQs) indicated little to no hazard (HQ <1) in terms of chronic toxicity for acetamiprid, dinotefuran, thiacloprid, or thiamethoxam. A moderate hazard (HQ >1) was found for emergence of N. triangulifer for clothianidin, and a high hazard (HQ = 74) was found for imidacloprid. Environ Toxicol Chem 2018;37:2727-2739. © 2018 SETAC.
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Affiliation(s)
- Melanie Raby
- School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Xiaoming Zhao
- Laboratory Services Branch, Ontario Ministry of the Environment, Conservation and Parks, Toronto, Ontario, Canada
| | - Chunyan Hao
- Laboratory Services Branch, Ontario Ministry of the Environment, Conservation and Parks, Toronto, Ontario, Canada
| | - David G Poirier
- Laboratory Services Branch, Ontario Ministry of the Environment, Conservation and Parks, Toronto, Ontario, Canada
| | - Paul K Sibley
- School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada
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36
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Basley K, Goulson D. Neonicotinoids thiamethoxam and clothianidin adversely affect the colonisation of invertebrate populations in aquatic microcosms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:9593-9599. [PMID: 29359247 PMCID: PMC5891553 DOI: 10.1007/s11356-017-1125-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 12/26/2017] [Indexed: 05/18/2023]
Abstract
Surface waters are sometimes contaminated with neonicotinoids: a widespread, persistent, systemic class of insecticide with leaching potential. Previous ecotoxicological investigations of this chemical class in aquatic ecosystems have largely focused on the impacts of the neonicotinoid imidacloprid; few empirical, manipulative studies have investigated the effect on invertebrate abundances of two other neonicotinoids which are now more widely used: clothianidin and thiamethoxam. In this study, we employ a simple microcosm semi-field design, incorporating a one-off contamination event, to investigate the effect of these pesticides at field-realistic levels (ranging from 0 to 15 ppb) on invertebrate colonisation and survival in small ephemeral ponds. In line with previous research on neonicotinoid impacts on aquatic invertebrates, significant negative effects of both neonicotinoids were found. There were clear differences between the two chemicals, with thiamethoxam generally producing stronger negative effects than clothianidin. Populations of Chironomids (Diptera) and Ostracoda were negatively affected by both chemicals, while Culicidae appeared to be unaffected by clothianidin at the doses used. Our data demonstrate that field-realistic concentrations of neonicotinoids are likely to reduce populations of invertebrates found in ephemeral ponds, which may have knock on effects up the food chain. We highlight the importance of developing pesticide monitoring schemes for European surface waters.
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Affiliation(s)
- Kate Basley
- School of Life Sciences, The University of Sussex, Falmer, East Sussex, BN1 9QG UK
| | - Dave Goulson
- School of Life Sciences, The University of Sussex, Falmer, East Sussex, BN1 9QG UK
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37
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Rani M, Shanker U. Removal of chlorpyrifos, thiamethoxam, and tebuconazole from water using green synthesized metal hexacyanoferrate nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10878-10893. [PMID: 29397507 DOI: 10.1007/s11356-018-1346-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/22/2018] [Indexed: 06/07/2023]
Abstract
The low-cost and highly efficient pesticides are largely used in residential, agricultural, and commercial applications. Their prevalent occurrence, bioaccumulation, and chronic toxicity to living beings have raised environmental concern and call for their whole eradication, especially from water. By virtue of semiconducting nature and high surface area, nanomaterials have become efficient adsorbent and photocatalyst in removal of toxins. To confirm this, the potential of highly crystalline metal hexacyanoferrates (MHCFs) of Zn, Cu, Co, and Ni was evaluated in deprivation of selected hazardous pesticides, viz., chlorpyrifos (CP), thiamethoxam (TH), and tebuconazole (TEB). Sharp nanocubes of ZnHCF (~ 100 nm), distorted nanocubes of CuHCF (~ 100 nm), and nanospheres of CoHCF and NiHCF (< 10 nm) were synthesized via green route using Sapindus mukorossi (raw ritha). At 50 mg L-1 of pesticide, 15 mg of MHCF photocatalyst, neutral pH and sunlight irradiation, selected agrochemicals were degraded to maximum extent (91-98%) by ZnHCF followed by CuHCF (85-91%), NiHCF (73-85%), and CoHCF (70-83%). This might be because of highest zeta potential and BET surface area of ZnHCF. The highest adsorption of CP (83-98%) followed by TH (76-95%) and TEB (70-91%) on acidic surface of catalysts might be related to access of free electrons in their structures. On treatment with MHCF photocatalyst, targets underwent mineralization along with formation of some minor and non-toxic by-products such as (Z) but-2-enal, 3-aminopropanoic acid, and pyridin-3-ol, identified after mass spectrometric analysis of reaction mixture. Based on them, degradation pathways have been proposed to reveal the potential of MHCF for solar photocatalytic removal of organic pollutants in environment.
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Affiliation(s)
- Manviri Rani
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology Jalandhar, Jalandhar, Punjab, 144011, India
| | - Uma Shanker
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology Jalandhar, Jalandhar, Punjab, 144011, India.
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38
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Martínez-Guitarte JL. Transcriptional activity of detoxification genes is altered by ultraviolet filters in Chironomus riparius. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:64-71. [PMID: 29154136 DOI: 10.1016/j.ecoenv.2017.11.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 11/01/2017] [Accepted: 11/09/2017] [Indexed: 06/07/2023]
Abstract
Ultraviolet (UV) filters are compounds used to prevent the damage produced by UV radiation in personal care products, plastics, etc. They have been associated with endocrine disruption, showing anti-estrogen activity in vertebrates and altering the ecdysone pathway in invertebrates. Although they have attracted the attention of multiple research teams there is a lack of data about how animals activate detoxification systems, especially in invertebrates. Here, analysis of the effects of two UV filters, benzophenone-3 (BP3) and 4-methylbenzylidene camphor (4MBC), on the transcriptional activity of nine genes covering the three steps of the detoxification process has been performed. Four cytochrome P450 genes belonging to different members of this family, five GST genes, and the multidrug resistance protein 1 (MRP1) gene were studied by RT-PCR to analyze their transcriptional activity in fourth instar larvae exposed to the UV filters for 8 and 24h. The obtained results show a differential response with downregulation of the different Cyp450s tested by 4MBC while BP3 seems not to modify their expression. On the other hand, some of the GST genes were affected by one or other of the filters, showing a less homogenous response. Finally, MRP1 was activated by both filters but at different times. These results demonstrate for first time that UV filters alter the expression of genes involved in the different steps of the detoxification process and that they can be processed by phase I enzymes other than Cyp450s. They also suggest that UV filters affect biotransformation processes, compromising the ability of the individual to respond to chemical stress, so further research is needed to know the extent of the damage that they can produce in the resistance of the cell to chemicals.
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Affiliation(s)
- José-Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040 Madrid, Spain
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39
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Qi S, Wang D, Zhu L, Teng M, Wang C, Xue X, Wu L. Neonicotinoid insecticides imidacloprid, guadipyr, and cycloxaprid induce acute oxidative stress in Daphnia magna. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:352-358. [PMID: 29096261 DOI: 10.1016/j.ecoenv.2017.10.042] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 09/26/2017] [Accepted: 10/19/2017] [Indexed: 06/07/2023]
Abstract
Cycloxaprid (CYC) and guadipyr (GUA) are two new and promising neonicotinoid insecticides whose effects on Daphnia magna are as yet unknown. In this study, the acute toxicities of CYC and GUA to D. magna, including immobilization and embryo-hatching inhibition, and their effects on antioxidant enzymes and related gene expression were determined after a 48-h exposure. Imidacloprid (IMI) was evaluated at the same time as a reference agent. The 48-h EC50 values of IMI, GUA, and CYC for neonate immobilization were 13.0-16.5mg/L and for embryo hatching were 11.3-16.2mg/L. The specific activity of the enzymes superoxide dismutase (SOD) and catalase (CAT) were interfered by IMI, but not by GUA and CYC, while the activity of acetylcholinesterase (AChE) was significantly increased by IMI, but inhibited by GUA and CYC. The relative expressions of the Sod-Cu/Zn, Sod-Mn, Cat, and Ache genes were usually inhibited by IMI, GUA, and CYC, except for Cat by CYC, Ache by GUA, and Sods by IMI. For vitellogenin genes with a SOD-like domain (Vtg1/2-sod), relative expression was increased by IMI and inhibited by GUA and CYC, indicating that IMI, GUA, and CYC have potential toxicity toward reproduction. CYC and GUA are highly active against IMI-resistant pests, and considering the similar toxicity of IMI to D. magna, CYC and GUA are suitable for use in future integrated pest management systems.
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Affiliation(s)
- Suzhen Qi
- Risk Assessment Laboratory for Bee Products Quality and Safety of Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China; College of Sciences, China Agricultural University, Beijing 100093, PR China
| | - Donghui Wang
- College of Life Sciences, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
| | - Lizhen Zhu
- College of Sciences, China Agricultural University, Beijing 100093, PR China
| | - Miaomiao Teng
- College of Sciences, China Agricultural University, Beijing 100093, PR China
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing 100093, PR China
| | - Xiaofeng Xue
- Risk Assessment Laboratory for Bee Products Quality and Safety of Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China
| | - Liming Wu
- Risk Assessment Laboratory for Bee Products Quality and Safety of Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China.
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40
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Basley K, Davenport B, Vogiatzis K, Goulson D. Effects of chronic exposure to thiamethoxam on larvae of the hoverfly Eristalis tenax (Diptera, Syrphidae). PeerJ 2018; 6:e4258. [PMID: 29372118 PMCID: PMC5775755 DOI: 10.7717/peerj.4258] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/21/2017] [Indexed: 01/20/2023] Open
Abstract
There is widespread concern over the use of neonicotinoid pesticides in the agro-ecosystem, due in part to their high water solubility which can lead to widespread contamination of non-target areas including standing surface water. Most studies investigating the negative fitness consequences of neonicotinoids have focused on bees, with little research on the impact on other non-target insects. Here we examined the effect of exposure on the aquatic larval stages of the hoverfly Eristalis tenax L. (Diptera: Syrphidae) to a range of concentrations (control, 5, 15, 50, 100 and 500 ppb) of the neonicotinoid thiamethoxam; no published studies have thus far examined the effects of neonicotinoids on hoverflies. Survival was significantly lower when exposed to 500 ppb thiamethoxam, but this concentration exceeds that likely to be found in the field. We observed no effect on survival, development or any latent effects on adult activity budgets resulting from exposure to lower concentrations (up to 100 ppb). Our results suggest that E. tenax exposed as larvae to thiamethoxam are unlikely to be negatively impacted by this neonicotinoid under field conditions.
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Affiliation(s)
- Kate Basley
- School of Life Sciences, University of Sussex, Brighton, East Sussex, UK
| | - Balin Davenport
- School of Life Sciences, University of Sussex, Brighton, East Sussex, UK
| | - Kate Vogiatzis
- Department of Life Sciences, Imperial College London, London, UK
| | - Dave Goulson
- School of Life Sciences, University of Sussex, Brighton, East Sussex, UK
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