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Lu ZJ, Shi WJ, Ma DD, Zhang JG, Long XB, Li SY, Gao FZ, Zhang QQ, Ying GG. The azole biocide climbazole induces oxidative stress, inflammation, and apoptosis in fish gut. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171475. [PMID: 38453063 DOI: 10.1016/j.scitotenv.2024.171475] [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: 01/30/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/09/2024]
Abstract
Climbazole is an azole biocide that has been widely used in formulations of personal care products. Climbazole can cause developmental toxicity and endocrine disruption as well as gut disturbance in aquatic organisms. However, the mechanisms behind gut toxicity induced by climbazole still remain largely unclear in fish. Here, we evaluate the gut effects by exposing grass carp (Ctenopharyngodon idella) to climbazole at levels ranging from 0.2 to 20 μg/L for 42 days by evaluating gene transcription and expression, biochemical analyses, correlation network analysis, and molecular docking. Results showed that climbazole exposure increased cyp1a mRNA expression and ROS level in the three treatment groups. Climbazole also inhibited Nrf2 and Keap1 transcripts as well as proteins, and suppressed the transcript levels of their subordinate antioxidant molecules (cat, sod, and ho-1), increasing oxidative stress. Additionally, climbazole enhanced NF-κB and iκBα transcripts and proteins, and the transcripts of NF-κB downstream pro-inflammatory factors (tnfα, and il-1β/6/8), leading to inflammation. Climbazole increased pro-apoptosis-related genes (fadd, bad1, and caspase3), and decreased anti-apoptosis-associated genes (bcl2, and bcl-xl), suggesting a direct reaction to apoptosis. The molecular docking data showed that climbazole could form stable hydrogen bonds with CYP1A. Mechanistically, our findings suggested that climbazole can induce inflammation and oxidative stress through CYP450s/ROS/Nrf2/NF-κB pathways, resulting in cell apoptosis in the gut of grass carp.
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Affiliation(s)
- Zhi-Jie Lu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Wen-Jun Shi
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Dong-Dong Ma
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Jin-Ge Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Xiao-Bing Long
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Si-Ying Li
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Fang-Zhou Gao
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Qian-Qian Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
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Sharma J, Kumar N, Mittal P, Chakrabarti R. Evaluation of UV-B protective properties of leaves and seeds of Achyranthes aspera in Asian catfish Clarias batrachus (Linn.). Photochem Photobiol Sci 2022; 21:1341-1356. [PMID: 35403962 DOI: 10.1007/s43630-022-00222-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/28/2022] [Indexed: 01/16/2023]
Abstract
The ultraviolet-B (UV-B) radiation is harmful to the aquatic organisms. The UV-B protective properties of leaves and seeds of herb Achyranthes aspera were evaluated in Clarias batrachus. Fish were fed with four diets-EFL1, EFL2 containing 0.25 and 0.5% leaves, EFS containing 0.5% seeds and control, CF. After 83 days of feeding, fish were exposed to UV-B (157 µW/cm2) for 7 days at the rate of 15 min/day. One batch of fish in each treatment was kept unexposed. Significantly higher final weight was found in EFS followed by EFL2 and EFL1 treatments. It was higher in unexposed fish compared to the exposed ones. Among exposed fish, significantly higher lysozyme was found in EFS and myeloperoxidase in EFS and EFL2 compared to others. Nitric oxide synthase and superoxide dismutase levels were significantly higher in liver and head kidney of EFS diet fed fish compared to others. Thiobarbituric acid reactive substances (TBARS) and carbonyl protein levels were minimum in EFS followed by EFL2. The independent sample t-test showed that nitric oxide synthase was significantly higher and myeloperoxidase and TBARS levels were significantly lower in unexposed group compared to the exposed fish in respective treatment. There were up-regulations of TNF-α, iNOS, NF-kB, BAX, Cytochrome c, SOD-c, Caspase 3, Caspase 9, BCL2 in liver and head kidney of leaves and seeds incorporated diets fed fish compared to control. Supplementation of A. aspera seeds and leaves at 0.5% level in diets gave UV-B protection to the fish.
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Affiliation(s)
- JaiGopal Sharma
- Department of Biotechnology, Delhi Technological University, Bawana Road, Delhi, 110042, India
| | - Neelesh Kumar
- Department of Biotechnology, Delhi Technological University, Bawana Road, Delhi, 110042, India
| | - Prabhat Mittal
- Satyawati College (Evening), University of Delhi, Ashok Vihar, Phase-III, Delhi, 110052, India
| | - Rina Chakrabarti
- Aqua Research Lab, Department of Zoology, University of Delhi, Delhi, 110007, India.
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Mosiichuk N, Husak V, Storey KB, Lushchak V. Acute Exposure to the Penconazole-Containing Fungicide Topas Induces Metabolic Stress in Goldfish. Chem Res Toxicol 2021; 34:2441-2449. [PMID: 34793142 DOI: 10.1021/acs.chemrestox.1c00174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Triazole fungicides are widely used in agriculture that leads to pollution of freshwater ecosystems. The mechanisms of toxicity to fish by the triazole fungicide Topas that contains penconazole (1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole) have not been studied. The present study aimed to evaluate the effect of goldfish exposure for 96 h to the fungicide Topas at concentrations of 1.5, 15, or 25 mg/L on the plasma and liver biochemical parameters and blood hematological profile. Goldfish exposure to Topas decreased alanine and aspartate transaminase activity and increased lactate dehydrogenase activity in the liver. Plasma lactate dehydrogenase and alanine transaminase activities were elevated in fungicide-treated fish. Topas exposure also enhanced plasma glucose and triacylglycerol concentrations. In the liver, fungicide treatment decreased levels of glucose but elevated triacylglycerols, glycogen, and protein. The results indicate that acute exposure of goldfish to Topas induced strong metabolic perturbations and disruptions of metabolic parameters, suggesting that these could be used to assess sublethal or acute toxic effects of pesticides on aquatic species.
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Affiliation(s)
- Nadiia Mosiichuk
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine
| | - Viktor Husak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine
| | - Kenneth B Storey
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada
| | - Volodymyr Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine
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Zhao X, Yang Z, Cheng Y. Effects of cadmium alone and in combination with pH on bioaccumulation, tissue structure, and enzyme activity of the Chinese mitten crab, Eriocheir sinensis. Comp Biochem Physiol C Toxicol Pharmacol 2021; 245:109025. [PMID: 33737221 DOI: 10.1016/j.cbpc.2021.109025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 11/25/2022]
Abstract
In this study, Chinese mitten crabs (Eriocheir sinensis) were exposed to various combinations of reduced pH (7.8, 7.3, and 6.5) and cadmium (Cd; 0 and 1 mg·L-1) for 7, 14, and 21 days. The reduced pH and 1 mg·L-1 Cd treatment significantly decreased the Cd concentration in crab tissues in the order of pH 7.8 > pH 7.3 > pH 6.5. The exposure to Cd resulted in edema, tubular vacuolization in epithelial cells, and hepatic duct degeneration in the hepatopancreas and indistinct cellular structure and disconnected epithelial layer in the gills. However, low pH alleviated the toxic effects of Cd on the tissues. In gill and hepatopancreas tissues, low pH and Cd exposure caused a significant increase in superoxide dismutase and catalase activities and oxidized glutathione content, but metallothionein activity was not affected. In contrast, the activity of glutathione-S-transferase decreased. Thus, indirect effects of pH on metal accumulation and antagonistic toxicities were observed in E. sinensis, and reduced pH and Cd exposure modulated the oxidative balance via different mechanisms.
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Affiliation(s)
- Xuejian Zhao
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
| | - Zhigang Yang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Yongxu Cheng
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China.
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Othmène YB, Salem IB, Hamdi H, Annabi E, Abid-Essefi S. Tebuconazole induced cytotoxic and genotoxic effects in HCT116 cells through ROS generation. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 174:104797. [PMID: 33838701 DOI: 10.1016/j.pestbp.2021.104797] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/24/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Tebuconazole (TEB) is a common triazole fungicide that has been widely used for the control of plant pathogenic fungi, suggesting that mammal exposure occurs regularly. Several studies demonstrated that TEB exposure has been linked to a variety of toxic effects, including neurotoxicity, immunotoxicity, reprotoxicity and carcinogenicity. However, there is a few available data regarding the molecular mechanism involved in TEB-induced toxicity. The current study was undertaken to investigate the toxic effects of TEB in HCT116 cells. Our results showed that TEB caused cytotoxicity by inhibiting cell viability as assessed by the MTT assay. Furthermore, we have demonstrated that TEB induced a significant increase in the reactive oxygen species (ROS) production leading to the induction of lipid peroxidation and DNA fragmentation and increased superoxide dismutase (SOD) and catalase (CAT) activities. Moreover, TEB exposure induced mitochondrial membrane potential loss and caspase-9/-3 activation. Treatment with general caspases inhibitor (Z-VAD-fmk) significantly prevented the TEB-induced cell death, indicating that TEB induced caspases-dependent cell death. These findings suggest the involvement of oxidative stress and apoptosis in TEB-induced toxicity in HCT116.
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Affiliation(s)
- Yosra Ben Othmène
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Intidhar Ben Salem
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia; University of Sousse, Faculty of Medicine of Sousse, 4000, Tunisia
| | - Hiba Hamdi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Emna Annabi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Salwa Abid-Essefi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia.
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Park CB, Kim GE, Kim DW, Kim S, Yeom DH. Biomonitoring the effects of urban-stream waters on the health status of pale chub (Zacco platypus): A comparative analysis of biological indexes and biomarker levels. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111452. [PMID: 33099143 DOI: 10.1016/j.ecoenv.2020.111452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to biomonitor the effects of potential environmental pollutants in urban-stream waters, on fish health. Pale chub (Zacco platypus), a dominant species in the Korea urban stream waters, was chosen and biomonitoring indicators for the different spatial characteristics were tailored in an urban watershed. Biological responses including biotic-somatic index as well as gonadal development phase and plasma steroids levels, and the biochemical responses, ethoxyresorufin-o-deethylase (EROD) and acetylcholinesterase (AChE) activities, were measured. No significant difference was observed in the length-weight relationship between the up-stream waters and the down-stream waters. However, changes in the gonad-somatic index (GSI) levels, plasma 17β-estradiol (E2) levels, and mature oocyte frequencies in the female fish collected during the spawning season were observed in the down-stream waters at each monitoring site. Moreover, intersex condition (testis-ova) in the male fish in down-stream waters was recorded, even if it was just one fish. Although no significant difference was observed in the EROD and AChE activities between the up-stream waters and the down-stream waters, changes in the reproductive biomarker levels, including the GSI levels, plasma E2 levels, and gonadal maturation, lead to variable biomonitoring endpoints between the spatial different sites. These results imply that exposure to the down-stream waters can cause reproductive impairment in wild Z. platypus, individual variability in the biological responses further indicate the reproductive health was affected more by the down-stream waters than the up-stream waters. The finding from this study can provide the biomonitoring endpoint on the wild fish health in urban watershed that is crucial to the early risk assessment of its biological impacts. More multi-biomarkers studies reflecting the variation in the biological organization of wild fish and, therefore, the effects of urban-stream waters in the fish health are warranted.
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Affiliation(s)
- Chang-Beom Park
- Gyengnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do 52834, Republic of Korea
| | - Go-Eun Kim
- Gyengnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do 52834, Republic of Korea
| | - Dae-Wook Kim
- Gyengnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do 52834, Republic of Korea
| | - Sooyeon Kim
- Gyengnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do 52834, Republic of Korea
| | - Dong-Hyuk Yeom
- Gyengnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do 52834, Republic of Korea.
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Li P, Li ZH. Neurotoxicity and physiological stress in brain of zebrafish chronically exposed to tributyltin. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:20-30. [PMID: 33016251 DOI: 10.1080/15287394.2020.1828209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tributyltin (TBT), an organotin compound, is hazardous in aquatic ecosystems. However, the mechanisms underlying TBT-induced central nervous system (CNS) toxicity remain to be determined especially in freshwater aquatic vertebrates. The aim of present study was to investigate the effects of chronic exposure to TBT on brain functions in a freshwater teleost the adult wild-type zebrafish (Danio rerio). Fish were exposed to sublethal concentrations of TBT (10, 100 or 300 ng/L) for 6 weeks. The influence of long-term TBT exposure was assessed in the brain of zebrafish with antioxidant related indices including malondialdehyde (MDA) levels and total antioxidant capacity, neurological parameters such as activities of acetylcholinesterase, and monoamine oxidase as well as levels of nitric oxide, dopamine, 5-hydroxytryptamine. In addition indices related to sensitivity of toxic insult such as cytochrome P450 1 regulation and heat shock protein 70 were determined. The regulation of related genes involved in endoplasmic reticulum stress (ERS), apoptosis and Nrf2 pathway were measured. Adverse physiological and biochemical responses were significantly enhanced in a concentration-dependent manner reflecting neurotoxicity attributed to TBT exposure. Our findings provide further insight into TBT-induced toxicity in wild-type zebrafish. and enhance our understanding of the molecular mechanisms underlying TBT-initiated CNS effects.
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Affiliation(s)
- Ping Li
- Marine College, Shandong University , Weihai, Shandong, China
| | - Zhi-Hua Li
- Marine College, Shandong University , Weihai, Shandong, China
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences , Wuhan, China
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Bhagat J, Singh N, Nishimura N, Shimada Y. A comprehensive review on environmental toxicity of azole compounds to fish. CHEMOSPHERE 2021; 262:128335. [PMID: 33182121 DOI: 10.1016/j.chemosphere.2020.128335] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Azoles are considered as one of the most efficient fungicides for the treatment of humans, animals, and plant fungal pathogens. They are of significant clinical importance as antifungal drugs and are widely used in personal care products, ultraviolet stabilizers, and in aircraft for its anti-corrosive properties. The prevalence of azole compounds in the natural environment and its accumulation in fish raises questions about its impact on aquatic organisms. OBJECTIVES The objective of this paper is to review the scientific studies on the effects of azole compounds in fish and to discuss future opportunities for the risk evaluation. METHODS A systematic literature search was conducted on Web of Science, PubMed, and ScienceDirect to locate peer-reviewed scientific articles on occurrence, environmental fate, and toxicological impact of azole fungicides on fish. RESULTS Studies included in this review provide ample evidence that azole compounds are not only commonly detected in the natural environment but also cause several detrimental effects on fish. Future studies with environmentally relevant concentrations of azole alone or in combination with other commonly occurring contaminants in a multigenerational study could provide a better understanding. CONCLUSION Based on current knowledge and studies reporting adverse biological effects of azole on fish, considerable attention is required for better management and effective ecological risk assessment of these emerging contaminants.
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Affiliation(s)
- Jacky Bhagat
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, 514-8507, Japan; Mie University Zebrafish Drug Screening Center, Tsu, Mie, 514-8507, Japan.
| | - Nisha Singh
- Environment Nanoscience Laboratory, Department of Earth Science, Indian Institute of Science Education and Research, Kolkata, 741246, India.
| | - Norihiro Nishimura
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, 514-8507, Japan; Mie University Zebrafish Drug Screening Center, Tsu, Mie, 514-8507, Japan.
| | - Yasuhito Shimada
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, 514-8507, Japan; Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie, 514-8507, Japan; Department of Bioinformatics, Mie University Advanced Science Research Promotion Center, Tsu, Mie, 514-8507, Japan.
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Othmène YB, Hamdi H, Amara I, Abid-Essefi S. Tebuconazole induced oxidative stress and histopathological alterations in adult rat heart. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 170:104671. [PMID: 32980069 DOI: 10.1016/j.pestbp.2020.104671] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
TEB belongs to the family of triazole fungicides and it is used to protect agricultural crop plants from fungal pathogens. The information regarding its cardiotoxic effects through different pathways particularly by perturbing the oxidative balance and causing damage to the myocardium is still limited. In the present study, oxidative and histopathologic damages caused by TEB in the cardiac tissue of male adult rats, were evaluated. Rats were exposed orally to TEB at 0.9, 9, 27 and 45 mg/kg b.w. for 28 days. Results showed that following TEB treatment malondialdehyde (MDA), protein carbonyl (PC), advanced oxidation protein product (AOPP), antioxidant enzyme activities (GPx and GR) and GSSG levels increased, while GSH levels and thus the GSH/GSSG ratio decreased. Superoxide dismutase (SOD) and catalase (CAT) initially increased at the doses of 0.9, 9 and 27 mg/kg b.w. and then decreased at the dose of 45 mg/kg b.w. Moreover, western blot analysis showed that TEB increased SOD1, CAT and HSP70 protein levels after 24 h. Furthermore, TEB induced various histological changes in the myocardium, including leucocytic infiltration, hemorrhage congestion of cardiac blood vessels and cytoplasmic vacuolization. Therefore, our investigation revealed, that TEB exhibits cardiotoxic effects by changing oxidative balance and damaging the cardiac tissue.
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Affiliation(s)
- Yosra Ben Othmène
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Hiba Hamdi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Ines Amara
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Salwa Abid-Essefi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia..
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Velisek J, Stara A, Zuskova E, Chabera J, Kubec J, Buric M, Kouba A. Effects of chloridazon on early life stages of marbled crayfish. CHEMOSPHERE 2020; 257:127189. [PMID: 32470540 DOI: 10.1016/j.chemosphere.2020.127189] [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: 04/23/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
The effects of chloridazon exposure at concentrations of 2.7 μg/L (maximal real environmental concentration in the Czech Republic), 27 μg/L, 135 μg/L and 270 μg/L on early life stages of marbled crayfish (Procambarus virginalis) were evaluated. Significantly higher glutathione S-transferase activity and reduced glutathione level was observed at all tested concentrations of chloridazon compared with the control. Chloridazon in concentrations 27, 135 and 270 μg/L caused delay ontogenetic development and slower growth. Histopathological changes in hepathopancreas were found in two highest tested concentrations (135 μg/L and 270 μg/L). Crayfish behaviour was not altered in control vs. exposed animals, while the activity parameters tend to decline with increasing chloridazon concentrations.
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Affiliation(s)
- Josef Velisek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic.
| | - Alzbeta Stara
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
| | - Eliska Zuskova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
| | - Jan Chabera
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
| | - Jan Kubec
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
| | - Milos Buric
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
| | - Antonin Kouba
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25, Vodnany, Czech Republic
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Zhao F, Cao F, Li H, Teng M, Liang Y, Qiu L. The effects of a short-term exposure to propiconazole in zebrafish (Danio rerio) embryos. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:38212-38220. [PMID: 32623674 DOI: 10.1007/s11356-020-09968-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Propiconazole (PCZ) is a widely used fungicide around the world and was frequently detected in surface waters, which would pose risk to aquatic organisms. Previous studies indicated that PCZ has high toxicity to different kinds of fish. However, most of the studies focus on the toxicity and mechanisms of PCZ to adult fish, the potential toxicity mechanism of PCZ to fish embryos is still poorly understood. The present study investigated the effects of PCZ on content of reactive oxygen species (ROS) and malondialdehyde (MDA); activities of superoxide dismutase (SOD), catalase (CAT), and Na+-K+-ATPase; and expression level of genes related to oxidative stress, cell apoptosis, and innate immune system in zebrafish embryos after 96-h exposure. The results showed that 5.0 mg/L PCZ induced oxidative damage in zebrafish embryos, as indicated by increased ROS and MDA content and alteration of antioxidative enzyme activity. The activity of Na+-K+-ATPase in zebrafish embryos was significantly inhibited after exposure to 0.5 mg/L PCZ. The expression levels of bax, p53, casp-3, casp-9, and apaf-1 were significantly increased, indicating that cell apoptosis was caused in embryos by 5.0 mg/L PCZ. The expression level of interleukin-1b (IL-1b) and IL-8 increased after exposure to 0.5 mg/L PCZ, but that of IL-1b, IL-8, and cxcl-c1c (chemokine (C-X-C motif) ligand 18b) decreased in 5.0-mg/L PCZ treatment group, indicating an immunotoxicity effect. Our results suggest that oxidative damage, cell apoptosis, and immunotoxicity would be induced in zebrafish embryos after short-term exposure to PCZ.
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Affiliation(s)
- Feng Zhao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Fangjie Cao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Hui Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Miaomiao Teng
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Yong Liang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Lihong Qiu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China.
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12
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Alkan Uçkun A, Barım Öz Ö. Acute exposure to the fungicide penconazole affects some biochemical parameters in the crayfish (Astacus leptodactylus Eschscholtz, 1823). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:35626-35637. [PMID: 32601870 DOI: 10.1007/s11356-020-09595-2] [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: 02/06/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Penconazole is one of the most widely used fungicides all over the world, and since it spreads to large environments, its toxic effects on non-target organisms are of great concern. The toxic effects of penconazole on crayfish (Astacus leptodactylus), which is a bioindicator in freshwater ecosystems and consumed economically, are not known. Therefore, in this study, the purpose was to contribute to the literature on the potential harmful effects of penconazole on a non-target species, Astacus leptodactylus. For this aim, the acute toxicity (96 h) of penconazole was examined. The 96-h LC50 value of penconazole was detected as 18.7 mg L-1. Four concentrations of penconazole (18.7 mg L-1, 9.35 mg L-1, 4.68 mg L-1, 2.34 mg L-1) were applied to crayfish for 96 h. The results showed that penconazole had destructive effects on esterase mechanisms by inhibiting acetylcholinesterase (AChE) and carboxylesterase (CaE) activities. Significant increases were observed in all antioxidant parameters (superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione S-transferase (GST), reduced glutathione (GSH), malondialdehyde (MDA)) in all doses except the lowest concentration (2.34 mg L-1). All adenosine triphosphatase (ATPase) activities (Na+/K+-ATPase, Mg2+-ATPase, Ca2+-ATPase, total ATPase) had significant dose-related inhibition in both gill and muscle tissues. In summary, our findings show that acute penconazole administration to crayfish causes significant toxic effects on esterase, antioxidative parameters, and metabolic enzymes.
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Affiliation(s)
- Aysel Alkan Uçkun
- Department of Environmental Engineering, Faculty of Engineering, Adıyaman University, Altınşehir neighborhood, Ataturk Boulevard, No. 1, Central Campus, 02040, Adıyaman, Turkey.
| | - Özden Barım Öz
- Department of Physiology, Faculty of Aquaculture, Fırat University, Elazığ, Turkey
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13
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Bojarski B, Witeska M. Blood biomarkers of herbicide, insecticide, and fungicide toxicity to fish-a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:19236-19250. [PMID: 32248419 DOI: 10.1007/s11356-020-08248-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/26/2020] [Indexed: 06/11/2023]
Abstract
Pesticides are widely used in the world agriculture, and they may adversely affect non-target organisms, including fish. The present 2000-2019 literature review summarizes hematological and blood biochemical effects of various herbicides, insecticides, and fungicides in fish. The observed changes usually indicate anemia and inflammation, as well as hyperglycemia, hypoproteinemia, increase in cortisol concentration and activities of hepatic aminotransferases that are typical for intoxication and stress. Other changes that are also sometimes observed such as increase in red blood parameters indicate compensatory response. The often-noted symptoms of immunosuppression show an adverse effect of pesticides on immune system and possible immunosuppression. Pathophysiological changes in fish induced by pesticides depend on many factors, such as active compound and its concentration, exposure duration, fish species, environmental conditions, etc. Hematological and blood biochemical parameters appear to be useful biomarkers for evaluation of physiological state of fish exposed to pesticides; however, they are not specific markers of intoxication.
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Affiliation(s)
- Bartosz Bojarski
- Department of Zoology and Animal Welfare, Faculty of Animal Science, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland.
| | - Małgorzata Witeska
- Siedlce University of Natural Sciences and Humanities, Faculty of Exact and Natural Sciences, Institute of Biological Sciences, Prusa 14, 08-110, Siedlce, Poland
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14
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The Connection of Azole Fungicides with Xeno-Sensing Nuclear Receptors, Drug Metabolism and Hepatotoxicity. Cells 2020; 9:cells9051192. [PMID: 32403288 PMCID: PMC7290820 DOI: 10.3390/cells9051192] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 12/21/2022] Open
Abstract
Azole fungicides, especially triazole compounds, are widely used in agriculture and as pharmaceuticals. For a considerable number of agricultural azole fungicides, the liver has been identified as the main target organ of toxicity. A number of previous studies points towards an important role of nuclear receptors such as the constitutive androstane receptor (CAR), the pregnane-X-receptor (PXR), or the aryl hydrocarbon receptor (AHR), within the molecular pathways leading to hepatotoxicity of these compounds. Nuclear receptor-mediated hepatic effects may comprise rather adaptive changes such as the induction of drug-metabolizing enzymes, to hepatocellular hypertrophy, histopathologically detectable fatty acid changes, proliferation of hepatocytes, and the promotion of liver tumors. Here, we present a comprehensive review of the current knowledge of the interaction of major agricultural azole-class fungicides with the three nuclear receptors CAR, PXR, and AHR in vivo and in vitro. Nuclear receptor activation profiles of the azoles are presented and related to histopathological findings from classic toxicity studies. Important issues such as species differences and multi-receptor agonism and the consequences for data interpretation and risk assessment are discussed.
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15
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Teng M, Chen X, Wang C, Song M, Zhang J, Bi S, Wang C. Life cycle exposure to propiconazole reduces fecundity by disrupting the steroidogenic pathway and altering DNA methylation in zebrafish (Danio rerio). ENVIRONMENT INTERNATIONAL 2020; 135:105384. [PMID: 31862640 DOI: 10.1016/j.envint.2019.105384] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/02/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
Propiconazole is fungicide widely used in agriculture, which may enter aquatic ecosystems and affect organisms. In this study, zebrafish (Danio rerio) were exposed to environmentally relevant levels of propiconazole throughout the life cycle, from embryo to sexually mature adults, and the effects on growth, reproduction, and offspring viability were investigated. To investigate the mechanisms of propiconazole action, the sex steroid hormones and the expression of genes related to the hypothalamus-pituitary-gonad-liver (HPGL) axis and DNA methylation were examined. Growth decreased in the parental zebrafish (F0) after exposure to propiconazole for 120 days. In males, increases in the levels of 17β-estradiol and vitellogenin were observed. The alterations in sex steroid hormones were regulated by the expression of genes involved with the HPGL axis. The decreases in fecundity and fertilization of the F0 was induced by the global DNA methylation, and then may result in the abnormal development of the F1. Therefore, propiconazole disrupted the steroidogenic pathway and caused changes in global DNA methylation that induced reproductive toxicity.
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Affiliation(s)
- Miaomiao Teng
- College of Sciences, China Agricultural University, Beijing 100193, People's Republic of China
| | - Xiangguang Chen
- College of Sciences, China Agricultural University, Beijing 100193, People's Republic of China
| | - Chen Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Min Song
- Tai'an Academy of Agricultural Sciences, Taian, 271000 Shandong Province, China
| | - Jie Zhang
- College of Sciences, China Agricultural University, Beijing 100193, People's Republic of China
| | - Sheng Bi
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, 21205 MD, USA
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing 100193, People's Republic of China.
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16
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Wang H, Ki JS. Molecular characterization and expression analysis of copper-zinc superoxide dismutases from the freshwater alga Closterium ehrenbergii under metal stress. ENVIRONMENTAL TOXICOLOGY 2020; 35:5-14. [PMID: 31452338 DOI: 10.1002/tox.22837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Superoxide dismutase (SOD) acts as the first line of defense against reactive oxygen species (ROS) within cells. In the present study, we determined two novel CuZnSOD genes (designated as CeCSD1 and CeCSD2) from the toxicity-testing freshwater algae Closterium ehrenbergii and examined their structural features, phylogenetic relationships, and gene expression under exposure to different metals. Putative CeCSD1 (204 aa, 20.6 kDa) and CeCSD2 (155 aa, 15.3 kDa) proteins had conserved CuZnSOD family motifs and metal (Cu, Zn) binding sites, but different N-terminus structures, that is, CeCSD1 has a signal peptide to chloroplasts. Phylogenetic analysis of each protein revealed that C. ehrenbergii was well clustered with other green algae and plants. Real-time PCR results showed that the gene expression obviously increased with heavy metal exposure. In addition, excess copper considerably increased the SOD activity and ROS generation but decreased the photosynthetic efficiency in treated cells. These results suggest that CeCSDs are involved in the antioxidant defense system and can be regarded as potential biomarkers for monitoring metal contaminants in aquatic environments.
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Affiliation(s)
- Hui Wang
- Department of Biotechnology, Sangmyung University, Seoul, 03016, South Korea
| | - Jang-Seu Ki
- Department of Biotechnology, Sangmyung University, Seoul, 03016, South Korea
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17
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Tian S, Teng M, Meng Z, Yan S, Jia M, Li R, Liu L, Yan J, Zhou Z, Zhu W. Toxicity effects in zebrafish embryos (Danio rerio) induced by prothioconazole. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113269. [PMID: 31574395 DOI: 10.1016/j.envpol.2019.113269] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/10/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Triazole fungicides are widely used in agriculture production and have adverse impacts on aquatic organisms. As one of the triazole fungicides, prothioconazole has been reported to cause many toxicological effects, but its risks to aquatic organisms are unknown. In this study, we systematically explored the toxicity effects of prothioconazole exposure on zebrafish embryos (Danio rerio) involving in developmental toxicity, oxidative damage and metabolism disorders. The results showed that prothioconazole exposure to zebrafish embryos produced a series of toxic symptoms, including hatching inhibition, shortening of body length, pericardial cyst and yolk cyst. In addition, prothioconazole exposure caused significant lipid peroxidation and oxidative damage. Particularly, we also found that metabolites and genes involved in lipid metabolism also showed significant changes. This study may provide theoretical basis for systematically assessing the potential risks of zebrafish embryos with prothioconazole exposure.
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Affiliation(s)
- Sinuo Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Miaomiao Teng
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Zhiyuan Meng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Sen Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Ming Jia
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Ruisheng Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Li Liu
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Jin Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Wentao Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
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18
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Valadas J, Mocelin R, Sachett A, Marcon M, Zanette RA, Dallegrave E, Herrmann AP, Piato A. Propiconazole induces abnormal behavior and oxidative stress in zebrafish. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27808-27815. [PMID: 31342352 DOI: 10.1007/s11356-019-05977-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/12/2019] [Indexed: 05/07/2023]
Abstract
The use of pesticides has been growing along with the demand for agricultural products. These compounds, however, are not restricted to the field, spreading easily through the soil, contaminating groundwater and reaching urban centers. Propiconazole is a triazole fungicide that has been increasingly used in agriculture. However, there are few data about its effects on non-target organisms. This study aimed to evaluate the effects of propiconazole in zebrafish. The animals were exposed for 96 h to different concentrations of propiconazole (425, 850, 1700, 8500 ng/L), then submitted to the novel tank test for behavioral analyses. The brains were collected for evaluation of oxidative stress parameters. Exposure to propiconazole (1700 and 8500 ng/L) decreased the number of crossings, entries, and time spent in the top, and increased the time spent in the bottom area of the tank. We also observed an increase in the activities of superoxide dismutase and catalase in zebrafish brain exposed to propiconazole at 425, 850, and 1700 ng/L. We conclude that propiconazole alters normal fish behavior and disrupts oxidative status. More studies are necessary to elucidate the exact mechanism underlying the effects of propiconazole on non-target-organisms.
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Affiliation(s)
- Jéssica Valadas
- Programa de Pós-graduação em Neurociências, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS, 90050-170, Brazil
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, 90050-170, Brazil
| | - Ricieri Mocelin
- Programa de Pós-graduação em Neurociências, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS, 90050-170, Brazil
| | - Adrieli Sachett
- Programa de Pós-graduação em Neurociências, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS, 90050-170, Brazil
| | - Matheus Marcon
- Programa de Pós-graduação em Neurociências, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS, 90050-170, Brazil
| | - Régis A Zanette
- Programa de Pós-graduação em Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, 90050-170, Brazil
| | - Ana P Herrmann
- Programa de Pós-graduação em Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil
| | - Angelo Piato
- Programa de Pós-graduação em Neurociências, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS, 90050-170, Brazil.
- Programa de Pós-graduação em Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil.
- Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA.
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19
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Teng M, Zhao F, Zhou Y, Yan S, Tian S, Yan J, Meng Z, Bi S, Wang C. Effect of Propiconazole on the Lipid Metabolism of Zebrafish Embryos ( Danio rerio). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4623-4631. [PMID: 30950260 DOI: 10.1021/acs.jafc.9b00449] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Propiconazole is a triazole fungicide that has been widely used in agriculture and has been detected in the aquatic environment. This study aimed to investigate the effects of propiconazole exposure on lipid metabolism in the early life stages of zebrafish for 120 h postfertilization (hpf). Using the early life stages of zebrafish to address scientific questions is lower in cost, more efficient, and suitable to meeting current legislation than those in other traditional fish species. Exposure to propiconazole significantly inhibited the development of zebrafish embryos and larvae. This exposure also caused reduced locomotor activities in zebrafish. Furthermore, total cholesterol levels, lipoprotein lipase, and fatty acid synthase activities were significantly decreased. The expression levels of genes involved in lipid metabolism were significantly up-regulated in response to propiconazole exposure. GC-MS/MS analysis revealed that fatty acids were significantly decreased. Together, the findings indicate the potential environmental risks of propiconazole exposure in the aquatic ecosystem.
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Affiliation(s)
- Miaomiao Teng
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Feng Zhao
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Yimeng Zhou
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Sen Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Science , China Agricultural University , Beijing 100193 , China
| | - Sinuo Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Science , China Agricultural University , Beijing 100193 , China
| | - Jin Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Science , China Agricultural University , Beijing 100193 , China
| | - Zhiyuan Meng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Science , China Agricultural University , Beijing 100193 , China
| | - Sheng Bi
- Department of Psychiatry and Behavioral Sciences , Johns Hopkins University School of Medicine, Baltimore , Maryland 21205 , United States
| | - Chengju Wang
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
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20
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Xu J, Long X, Ge S, Li M, Chen L, Hu D, Zhang Y. Deposition amount and dissipation kinetics of difenoconazole and propiconazole applied on banana with two commercial spray adjuvants. RSC Adv 2019; 9:19780-19790. [PMID: 35519386 PMCID: PMC9065373 DOI: 10.1039/c9ra02874a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/07/2019] [Indexed: 11/21/2022] Open
Abstract
A rapid and sensitive method for the simultaneous determination of difenoconazole and propiconazole residues in banana matrices was established using GC-MS/MS. The average recovery rates of difenoconazole and propiconazole from various matrices ranged from 76.7% to 94.9%. The relative standard deviation was between 0.9% and 7.4%. The effect of adding organosilicon and mineral oil adjuvants after being applied to the residues of difenoconazole and propiconazole in banana leaves was examined. The initial deposition amount 2 hours after the adjuvant treatment with organosilicon and mineral oil was 1.22–2.13 times higher than that after water treatment. After adding the two spray adjuvants, the residues of the two pesticides at 2 hours on three samples followed the order leaves > soil > fruit. The degradation half-lives of the two pesticides were in the range of 1.91–7.30 days for all the three treatments in two typical banana-growing areas in China. The degradation half-lives of the two pesticides in the water treatment group and the mineral oil treatment group were similar. However, organosilicon could apparently increase the half-life of difenoconazole on banana leaves. The final levels of difenoconazole and propiconazole residues on whole banana fruits were ≤0.1 mg kg−1 (MRL) 14 days after application. The results of this work may aid the safe use of difenoconazole and propiconazole in banana production, especially when used with organosilicon and mineral oil adjuvants. The effect of adding organosilicon and mineral oil adjuvants after being applied to the residues of difenoconazole and propiconazole in banana leaves was studied. The partition of the pesticides between soil, leaves and fruits was evaluated.![]()
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Affiliation(s)
- Jin Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Xiaofang Long
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Shijia Ge
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Mengli Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Lingzhu Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Yuping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
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21
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Burkina V, Zamaratskaia G, Sakalli S, Giang PT, Kodes V, Grabic R, Velisek J, Turek J, Kolarova J, Zlabek V, Randak T. Complex effects of pollution on fish in major rivers in the Czech Republic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:92-99. [PMID: 30098510 DOI: 10.1016/j.ecoenv.2018.07.109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Monitoring the contamination level in aquatic environments and assessing the impact on aquatic life occurs throughout the world. In the present study, an approach based on a combination of biomarkers and the distribution of various industrial and municipal pollutants was used to investigate the effect of aquatic environmental contamination on fish. Monitoring was performed in ten rivers in the Czech Republic (Berounka, Dyje, Elbe, Lužnice, Odra, Ohře, Otava, Sázava, Svratka, and Vltava rivers, with one or two locations in each river) at the same sites that were regularly monitored within the Czech National Monitoring Program in 2007-2011. Health status, hepatic ethoxyresorufin-O-deethylase (EROD) activity, total cytochrome P450 content, and the plasma vitellogenin concentration were assessed in wild chub (Squalius cephalus) males caught at the monitored sites. The contamination level was the highest in the Svratka River downstream of Brno. Among all measured persistent organic pollutants (POPs), polychlorinated biphenyls and dichlorodiphenyltrichloroethane and its metabolites were the major contributors of POPs in fish muscle. Elbe, Odra, and Svratka rivers were identified as the most polluted. Fish from these locations showed reduced gonad size, increased vitellogenin concentration in male plasma, EROD, and total cytochrome P450 content. These biomarkers can be used for future environmental monitoring assessments. Overall, this study improves our understanding of the relationship between human activities and pollutant loads and further contributes to the decision to support local watershed managers to protect water quality in this region.
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Affiliation(s)
- Viktoriia Burkina
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Galia Zamaratskaia
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic; Swedish University of Agricultural Sciences, Uppsala BioCenter, Department of Molecular Science, P.O. Box 7015, SE-750 07 Uppsala, Sweden.
| | - Sidika Sakalli
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Pham Thai Giang
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Vit Kodes
- Czech Hydrometeorological Institute, Section of Water Quality, Na Sabatce 17, CZ-14306 Prague 4, Czech Republic.
| | - Roman Grabic
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Josef Velisek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Jan Turek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Jitka Kolarova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Vladimir Zlabek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Tomas Randak
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
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Propiconazole is an activator of AHR and causes concentration additive effects with an established AHR ligand. Arch Toxicol 2018; 92:3471-3486. [DOI: 10.1007/s00204-018-2321-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/26/2018] [Indexed: 02/08/2023]
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Huo J, Dong A, Niu X, Dong A, Lee S, Ma C, Wang L. Effects of cadmium on oxidative stress activities in plasma of freshwater turtle Chinemys reevesii. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:8027-8034. [PMID: 29305804 DOI: 10.1007/s11356-017-1139-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 12/26/2017] [Indexed: 05/24/2023]
Abstract
Cadmium (Cd) has been recently found in high concentrations in the aquatic environment. This study was designed to examine the effects of Cd on the oxidative stress activities in plasma of freshwater turtle Chinemys reevesii. Experimental turtles were exposed to Cd at the concentration of 15 mg/kg by intraperitoneal injection, and redox status was investigated. Compared to the controls, superoxide dismutase (SOD) and catalase activities in plasma of the treated animals significantly decreased in week 1, week 2, and week 4. However, SOD activities gradually increased from week 4 to week 8. The treated animals had higher content of MDA and lower content of GSH in plasma over the observation period. In conclusion, our results showed that Cd decreased the antioxidant capacity and increased the level of oxidative damage product in plasma, which suggest that Cd causes oxidative stress and damage in the animal under the experimental conditions.
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Affiliation(s)
- Junfeng Huo
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, China
| | - Aiguo Dong
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, China.
| | - Xiaojun Niu
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, China
| | - Ailing Dong
- QianAn agriculture Animal Husbandry and Fishery Bureau, Tangshan, Hebei Province, China
| | - Shaochin Lee
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China.
| | - Cungen Ma
- Institute of Brain Science, Shanxi Datong University, Datong, Shanxi Province, China.
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China.
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Derakhshesh N, Movahedinia A, Salamat N, Hashemitabar M, Bayati V. Using a liver cell culture from Epinephelus coioides as a model to evaluate the nonylphenol-induced oxidative stress. MARINE POLLUTION BULLETIN 2017; 122:243-252. [PMID: 28676171 DOI: 10.1016/j.marpolbul.2017.06.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 06/16/2017] [Accepted: 06/17/2017] [Indexed: 06/07/2023]
Abstract
The present study aimed to use primary liver cell culture derived from the orange-spotted grouper, Epinephelus coioides, to assess the toxic effects of nonylphenol (NP) on the hepatocyte viability and the liver antioxidant system. E. coioides was selected due to its commercial importance. NP was used in this study because of its high potential of producing oxidative stress due to increased reactive oxygen species (ROS). A liver of E. coioides was digested with PBS containing 0.1% collagenase IV. The digested cells were moved to Leibovitz L-15 culture medium with 20% fetal bovine serum (FBS), 100IUmL-1 penicillin, 100μgmL-1 streptomycin. Aliquots of cell suspension were seeded as a monolayer into sterile 25cm2 tissue culture flasks and incubated at 30°C for 14days. The medium, containing non-attached cells, was removed after 24 to 48h and a new medium was added. The IC50 of 10-4molL-1 was determined for nonylphenol using MTT assay. Cells were then incubated with L-15 medium containing 10-5, 2×10-5, 3×10-5molL-1 of NP and samples were taken after 6, 12 and 24h of incubation for analysis of LPO, SOD, CAT, GPx, LDH, AST, ALT, and ALP. Based on the results, the lowest concentration of NP was not markedly cytotoxic to primary hepatocytes and the cell sensitivity to NP increased dose-dependently. The activities of SOD, CAT and GPx decreased significantly, while activities of LPO, LDH, AST, ALT and ALP, increased significantly in a dose-related pattern in NP-treated cells. In conclusion, this study revealed that NP could induce the oxidative stress in cultivated hepatocytes of E. coioides during a short-term exposure. NP toxicity is mainly due to the induction of the reactive oxygen species (ROS), which lead to cell membrane disruption, damage of cellular metabolism, and interference with cellular macromolecules.
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Affiliation(s)
- Negin Derakhshesh
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, Iran
| | - AbdolAli Movahedinia
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, Iran.
| | - Negin Salamat
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, Iran.
| | - Mahmoud Hashemitabar
- Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vahid Bayati
- Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Habila S, Leghouchi E, Valdehita A, Bermejo-Nogales A, Khelili S, Navas JM. Induction of EROD and BFCOD activities in tissues of barbel (Barbus callensis) from a water reservoir in Algeria. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:129-138. [PMID: 28395205 DOI: 10.1016/j.ecoenv.2017.03.055] [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: 12/30/2016] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
EROD and BFCOD activities were measured in liver and gills of barbel (Barbus callensis, a native North African species) captured at Beni Haroun lake, the most important water reservoir in Algeria. This lake receives wastewater from different origins. Thus, we assessed the level of pollution through the induction of detoxification activities in tissues of barbel, evaluating simultaneously the suitability of this species to be used as a sentinel. Fish were collected between March 2015 and January 2016 at three locations taking into account the pollution sources and accessibility. In liver, EROD and BFCOD showed the highest induction in October specially in the location of the dam that received pollutants. In gills, only EROD, but not BFCOD, activity was detected. Maximal EROD induction was noted in samples from January. Fish cell lines (RTG-2 and PLHC-1) were exposed to sediments extracts collected at Beni Haroun lake and enzyme activities (EROD and BFCOD, respectively) were measured. Sediment extracts did not induce BFCOD activity. The EROD induction observed in RTG-2 cells was in line with the results observed in fish tissues. Our results suggest that the lake is at risk from pollution and that Barbus callensis is a good sentinel species.
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Affiliation(s)
- Safia Habila
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Crta. de la Coruña, km. 7, 5, 28040 Madrid, Spain; Département d'Ecologie et Génie de l'Environnement., Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l'Univers, Université 08, Mai 1945 Guelma, BP 401, 24000 Guelma, Algeria; Laboratoire de Biotechnologie, Environnement et Santé, Université Mohammed Seddik Benyahya, Jijel, BP 98, Ouled Aissa, Jijel 18000, Algeria
| | - Essaid Leghouchi
- Laboratoire de Biotechnologie, Environnement et Santé, Université Mohammed Seddik Benyahya, Jijel, BP 98, Ouled Aissa, Jijel 18000, Algeria
| | - Ana Valdehita
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Crta. de la Coruña, km. 7, 5, 28040 Madrid, Spain
| | - Azucena Bermejo-Nogales
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Crta. de la Coruña, km. 7, 5, 28040 Madrid, Spain
| | - Smail Khelili
- Laboratoire de Pharmacologie et Phytochimie, Université Mohammed Seddik Benyahya, Jijel, BP 98, Ouled Aissa, Jijel 18000, Algeria
| | - José M Navas
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Crta. de la Coruña, km. 7, 5, 28040 Madrid, Spain.
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Mihaich EM, Schäfers C, Dreier DA, Hecker M, Ortego L, Kawashima Y, Dang ZC, Solomon K. Challenges in assigning endocrine-specific modes of action: Recommendations for researchers and regulators. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2017; 13:280-292. [PMID: 27976826 DOI: 10.1002/ieam.1883] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/22/2016] [Accepted: 12/01/2016] [Indexed: 06/06/2023]
Abstract
As regulatory programs evaluate substances for their endocrine-disrupting properties, careful study design and data interpretation are needed to distinguish between responses that are truly endocrine specific and those that are not. This is particularly important in regulatory environments where criteria are under development to identify endocrine-disrupting properties to enable hazard-based regulation. Irrespective of these processes, most jurisdictions use the World Health Organization/International Programme on Chemical Safety definition of an endocrine disruptor, requiring that a substance is demonstrated to cause a change in endocrine function that consequently leads to an adverse effect in an intact organism. Such a definition is broad, and at its most cautious might capture many general mechanisms that would not specifically denote an endocrine disruptor. In addition, endocrine responses may be adaptive in nature, designed to maintain homeostasis rather than induce an irreversible adverse effect. The likelihood of indirect effects is increased in (eco)toxicological studies that require the use of maximum tolerated concentrations or doses, which must produce some adverse effect. The misidentification of indirect effects as truly endocrine mediated has serious consequences for prompting animal- and resource-intensive testing and regulatory consequences. To minimize the risk for misidentification, an objective and transparent weight-of-evidence procedure based on biological plausibility, essentiality, and empirical evidence of key events in an adverse outcome pathway is recommended to describe the modes of action that may be involved in toxic responses in nontarget organisms. Confounding factors such as systemic toxicity, general stress, and infection can add complexity to such an evaluation and should be considered in the weight of evidence. A recommended set of questions is proffered to help guide researchers and regulators in discerning endocrine and nonendocrine responses. Although many examples provided in this study are based on ecotoxicology, the majority of the concepts and processes are applicable to both environmental and human health assessments. Integr Environ Assess Manag 2017;13:280-292. © 2016 SETAC.
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Affiliation(s)
- Ellen M Mihaich
- Environmental and Regulatory Resources, Durham, North Carolina, USA
| | | | - David A Dreier
- Center for Environmental & Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
| | - Markus Hecker
- School of the Environment & Sustainability and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Lisa Ortego
- Bayer CropScience, Research Triangle Park, North Carolina, USA
| | | | | | - Keith Solomon
- Centre for Toxicology, School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada
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28
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Husak VV, Mosiichuk NM, Storey JM, Storey KB, Lushchak VI. Acute exposure to the penconazole-containing fungicide Topas partially augments antioxidant potential in goldfish tissues. Comp Biochem Physiol C Toxicol Pharmacol 2017; 193:1-8. [PMID: 27979696 DOI: 10.1016/j.cbpc.2016.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/29/2016] [Accepted: 12/02/2016] [Indexed: 11/18/2022]
Abstract
Penconazole is a systemic fungicide commonly used in agriculture as the commercial preparation Topas. Although triazole fungicides are widely found in the aquatic environment, little is known about their acute toxicity on fish. In this study we assessed the effects of short-term exposure to Topas on some parameters of homeostasis of reactive oxygen species (ROS), such as the levels of markers of oxidative stress and parameters of the antioxidant defense system of goldfish (Carassius auratus L.). Gills appeared to be the main target organ of Topas toxicity, showing the greatest number of parameters affected. Gills of Topas-treated fish showed a higher content of low (L-SH) and high (H-SH) molecular mass thiols and higher activities of superoxide dismutase (SOD), catalase, glutathione reductase (GR), glutathione-S-transferase (GST), and glucose-6-phosphate dehydrogenase (G6PDH) as well as reduced carbonyl protein content (CP), as compared with those in the control group. In the liver, goldfish exposure to 15-25mgL-1 Topas resulted in a higher L-SH and H-SH content, but lower CP levels and activity of GST. In kidney, Topas exposure resulted in higher activities of glutathione peroxidase (GPx) and G6PDH, but lower L-SH content and activity of GST. The results of this study indicate that acute goldfish exposure to the triazole fungicide Topas increased efficiency of the antioxidant system in fish gills, liver, and kidney. This could indicate the development of low intensity oxidative stress which up-regulates defense mechanisms responsible for protection of goldfish against deleterious ROS effects.
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Affiliation(s)
- Viktor V Husak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine
| | - Nadia M Mosiichuk
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine
| | - Janet M Storey
- Institute of Biochemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada
| | - Kenneth B Storey
- Institute of Biochemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada
| | - Volodymyr I Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk 76018, Ukraine.
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Li ZH, Li P, Shi ZC. Chronic effects of tributyltin on multiple biomarkers responses in juvenile common carp, Cyprinus carpio. ENVIRONMENTAL TOXICOLOGY 2016; 31:937-944. [PMID: 25573135 DOI: 10.1002/tox.22103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 12/10/2014] [Accepted: 12/16/2014] [Indexed: 06/04/2023]
Abstract
In this study, the chronic toxic effects of tributyltin (TBT), an antifouling paints commonly present in surface and ground water, on morphological indices, reactive oxygen species (ROS) generation, and ATPase activity and heat shock protein (Hsp) 70 protein in tissues (liver, gill, and white muscle) of common carp were investigated. Fish were exposed at sublethal concentrations of TBT (75 ng/L, 0.75 μg/L, and 7.5 μg/L) for 60 days. When compared with the control, there was significant lower condition factor in fish exposed at the higher concentration of TBT. ROS levels in three tissues increased significantly at higher TBT concentrations (0.75 and 7.5 μg/L). The hepatic antioxidant enzymes (total antioxidative capacity and superoxide dismutase) activities were induced at higher concentrations (0.75 μg/L) of TBT. When compared with the hepatic antioxidant enzymes activities in fish exposed to 0.75 μg/L of TBT, there was a decreasing trend in those exposed to TBT with a concentration of 7.5 μg/L. However, all the antioxidant enzymes activities were significantly inhibited in gill and muscle of fish exposed to higher TBT concentrations (0.75 and 7.5 μg/L). Moreover, there was significant lower Na-K-ATPase in three tissues after long-term exposure to higher concentration of TBT, but a significant higher Hsp70 protein levels was observed. In short, environmental concentrations of TBT could not induce obvious impacts on fish, but long-term exposure to higher concentrations of TBT could affect seriously the health status of fish. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 937-944, 2016.
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Affiliation(s)
- Zhi-Hua Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Ping Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Ze-Chao Shi
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
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30
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Satapute P, Kaliwal B. Biodegradation of the fungicide propiconazole by Pseudomonas aeruginosa PS-4 strain isolated from a paddy soil. ANN MICROBIOL 2016. [DOI: 10.1007/s13213-016-1222-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Lushchak VI. Contaminant-induced oxidative stress in fish: a mechanistic approach. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:711-747. [PMID: 26607273 DOI: 10.1007/s10695-015-0171-5] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 11/19/2015] [Indexed: 06/05/2023]
Abstract
The presence of reactive oxygen species (ROS) in living organisms was described more than 60 years ago and virtually immediately it was suggested that ROS were involved in various pathological processes and aging. The state when ROS generation exceeds elimination leading to an increased steady-state ROS level has been called "oxidative stress." Although ROS association with many pathological states in animals is well established, the question of ROS responsibility for the development of these states is still open. Fish represent the largest group of vertebrates and they inhabit a broad range of ecosystems where they are subjected to many different aquatic contaminants. In many cases, the deleterious effects of contaminants have been connected to induction of oxidative stress. Therefore, deciphering of molecular mechanisms leading to such contaminant effects and organisms' response may let prevent or minimize deleterious impacts of oxidative stress. This review describes general aspects of ROS homeostasis, in particular highlighting its basic aspects, modification of cellular constituents, operation of defense systems and ROS-based signaling with an emphasis on fish systems. A brief introduction to oxidative stress theory is accompanied by the description of a recently developed classification system for oxidative stress based on its intensity and time course. Specific information on contaminant-induced oxidative stress in fish is covered in sections devoted to such pollutants as metal ions (particularly iron, copper, chromium, mercury, arsenic, nickel, etc.), pesticides (insecticides, herbicides, and fungicides) and oil with accompanying pollutants. In the last section, certain problems and perspectives in studies of oxidative stress in fish are described.
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Affiliation(s)
- Volodymyr I Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine.
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Li ZH, Li P, Shi ZC. Physiological and molecular responses in brain of juvenile common carp (Cyprinus carpio) following exposure to tributyltin. ENVIRONMENTAL TOXICOLOGY 2016; 31:278-284. [PMID: 25761124 DOI: 10.1002/tox.22042] [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: 06/02/2014] [Revised: 08/20/2014] [Accepted: 08/23/2014] [Indexed: 06/04/2023]
Abstract
Tributyltin (TBT), as antifouling paints, is widely present in aquatic environment, but little is known regarding the toxicity of TBT on fish brain. In this study, the effects of exposure to TBT on the antioxidant defense system, Na(+) -K(+) -ATPase activity, neurological enzymes activity and Hsp 70 protein level in brain of juvenile common carp (Cyprinus carpio) were studied. Fish were exposed to sublethal concentrations of TBT (5, 10 and 20 μg/L) for 7 days. Based on the results, with increasing concentrations of TBT, oxidative stress was apparent as reflected by the significant higher levels of oxidative indices, as well as the significant inhibition of all antioxidant enzymes activities. Besides, the activities of Acetylcholinesterase (AChE), Monoamine oxidases (MAO) and Na(+) -K(+) -ATPase were significantly inhibited after exposure to TBT with higher concentrations. In addition, the levels of Hsp 70 protein were evaluated under TBT stress with dose-depended manner. These results suggest that selected physiological responses in fish brain could be used as potential biomarkers for monitoring residual organotin compounds present in aquatic environment.
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Affiliation(s)
- Zhi-Hua Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Ping Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Ze-Chao Shi
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
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Li ZH, Zhong LQ, Wu YH, Mu WN. Alteration of cytochrome P450 1 regulation and HSP 70 level in brain of juvenile common carp (Cyprinus carpio) after chronic exposure to tributyltin. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:287-294. [PMID: 26400268 DOI: 10.1007/s10695-015-0136-8] [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: 07/19/2015] [Accepted: 09/20/2015] [Indexed: 06/05/2023]
Abstract
Tributyltin (TBT), a toxic contaminant in aquatic environments, has bio-accumulated in aquatic food webs throughout the world and can be found at toxic levels in some biota. However, the molecular mechanisms and effects of TBT are not fully understood. The aim of the present study was to investigate the effect of long-term exposure of TBT on cytochrome P450 (CYP450) 1 regulation and heat-shock proteins (HSPs) profiling in brain of freshwater teleost. The effects of long-term exposure to TBT on mRNA expression of cytochrome P450 (CYP450) 1 family genes and ethoxyresorufin O-deethylase (EROD) activity in the brain of common carp were evaluated, as well as HSP 70 level. Fish were exposed to sublethal concentrations of TBT (75 ng/L, 0.75 μg/L and 7.5 μg/L) for 15, 30, and 60 days. Based on the results, long-term exposure (more than 15 days) to TBT could lead to obvious physiological-biochemical responses (based on EROD activity, HSP 70 level and CYP450 1 family genes expression). The mRNA expression of CYP450 1 family genes (CYP1A, CYP1B, CYP1C1 and CYP1C2) suggested that CYP1A was to accommodate most EROD activity in fish, but other CYP450 forms also involved in this proceeding. Thus, the measured physiological responses in fish brain could provide useful information to better understand the mechanisms of TBT-induced bio-toxicity and could be used as potential biomarkers for monitoring the TBT pollution in the field.
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Affiliation(s)
- Zhi-Hua Li
- Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (MOA), Key Laboratory of Freshwater Biodiversity Conservation (MOA), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
| | - Li-Qiao Zhong
- Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (MOA), Key Laboratory of Freshwater Biodiversity Conservation (MOA), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Yan-Hua Wu
- Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (MOA), Key Laboratory of Freshwater Biodiversity Conservation (MOA), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- Key Laboratory of Aquatic Science of Chongqing, School of Life Science, Southwest University, Chongqing, 400715, China
| | - Wei-Na Mu
- Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (MOA), Key Laboratory of Freshwater Biodiversity Conservation (MOA), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
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Li P, Li ZH. Physiological Responses in Chinese Rare Minnow Larvae Following Exposure to Low-Dose Tributyltin. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 95:588-592. [PMID: 26385694 DOI: 10.1007/s00128-015-1655-9] [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: 12/22/2014] [Accepted: 09/12/2015] [Indexed: 06/05/2023]
Abstract
In the present study, the antioxidant response and acetylcholinesterase (AChE) activity were measured in Chinese rare minnow larvae (Gobiocypris rarus) after exposure to tributyltin (TBT) (0, 100, 400 and 800 ngL(-1)) for 7 days, as well as the expression of a series of genes, including cr, aptase and prl genes involved in the ion-regulatory process and igfbp3 and gh related to growth rate. Results shows that oxidative stress was generated in fish exposed to TBT, as evidenced by elevated malondialdehyde levels and the inhibition of antioxidant parameters. The activity of acetylcholinesterase (AChE) was also inhibited in fish under higher TBT stress. Moreover, genes involved in ion regulation and growth were affected, based on the regulated transcription of the cr, atpase, gh, prl and igfbp3 genes in the treated groups. The observed effects of TBT upon antioxidant responses and altered expression of genes provides insight into the use of these molecular biomarkers in evaluating mechanisms of TBT toxicity in fish.
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Affiliation(s)
- Ping Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Zhi-Hua Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Observation Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
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Ayanda O, Oniye S, Auta J, Ajibola V. Acute toxicity of glyphosate and paraquat to the African catfish (Clarias gariepinus, Teugels 1986) using some biochemical indicators. TROPICAL ZOOLOGY 2015. [DOI: 10.1080/03946975.2015.1076661] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Li ZH, Zhong LQ, Mu WN, Wu YH. Effects of chronic exposure to tributyltin on tissue-specific cytochrome P450 1 regulation in juvenile common carp. Xenobiotica 2015; 46:511-5. [DOI: 10.3109/00498254.2015.1092618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Mu X, Chai T, Wang K, Zhang J, Zhu L, Li X, Wang C. Occurrence and origin of sensitivity toward difenoconazole in zebrafish (Danio reio) during different life stages. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 160:57-68. [PMID: 25621397 DOI: 10.1016/j.aquatox.2015.01.001] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 01/02/2015] [Accepted: 01/03/2015] [Indexed: 06/04/2023]
Abstract
We report here an investigation of the mechanisms contributing to the divergent sensitivity toward the triazole fungicide difenoconazole of zebrafish (Danio reio) during different life stages. Adult and embryonic zebrafish were exposed to three different concentrations of difenoconazole (0.01, 0.5 and 1.0mg/L). The death rate, bioaccumulation of difenoconazole, oxidative stress parameters and transcription of related genes were tested at 4 and 8 days post-exposure (dpe). The death rate for adult zebrafish was much higher than that of the embryos at an exposure concentration of 1.0mg/L at both 4 and 8 dpe. The concentrations of difenoconazole in both the embryos and adult fish were similar, except for the group exposed to 0.01mg/L difenoconazole. A decrease in antioxidant enzyme activities was observed in both the embryos and the livers of adult fish after exposure to difenoconazole. Significant lipid peroxidation was found in the livers of adult fish in all exposure groups at 8 dpe, but was not observed in the treated embryos. The gene transcription response of the embryos toward difenoconazole was different from that in the livers of adult fish at 4 dpe. At 8 dpe, the modification in the transcription of the tested genes in the embryos and adult fish was similar, except for the genes related to the synthesis of sterols.
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Affiliation(s)
- Xiyan Mu
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Tingting Chai
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Kai Wang
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Jie Zhang
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Lizhen Zhu
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Xuefeng Li
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing 100913, People's Republic of China.
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Kim JH, Yeom DH, An KG. A new approach of Integrated Health Responses (IHR(s)) modeling for ecological risk/health assessments of an urban stream. CHEMOSPHERE 2014; 108:376-382. [PMID: 24630446 DOI: 10.1016/j.chemosphere.2014.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 02/07/2014] [Accepted: 02/13/2014] [Indexed: 06/03/2023]
Abstract
The objective of this study was to evaluate the ecological health of an urban stream using Integrated Health Responses (IHRs). Water chemistry analysis, habitat health, and ecotoxicity tests were conducted in the stream along with analyses of molecular/biochemical, physiological biomarkers, and population-level responses in indicator species. Chemical stresses, measured as nutrient levels, ionic content and organic matter concentrations were significantly greater (p<0.01) at the downstream than the reference site (RF). The habitat health was largely impacted in the downstream reaches and had a negative relation with the land-use pattern of % urban area. Comet assay, 7-ethoxyresorufin-O-deethylase (EROD), acetylcholinesterase (AChE), and vitellogenin (VTG) were evaluated for low-level biomarker responses on DNA/physiological conditions of target species. The multi-metric fish model (Mm-F) was used to test the community-level response in relation to chemical and physical habitat stresses. The impaired responses of separate biomarker and bioindicator at the downstream sites occurred at all organizations from molecular/biochemical level to community level. Using all biomarkers/bioindicators, the star-plot model of IHRs was developed and then the integrative health/risk assessments were conducted in the urban stream. The reduced values of IHRs occurred in the downstream sites and the impacts were attributed to effluents from wastewater treatment plants (WTPs) and industrial complex. Ecological health impairments, thus, were evident in the urban reach, and reflected the long-term community responses as well as short-term responses of molecular biomarkers. The degradation of the urban stream was mainly due to a combined effect of chemical pollution and physical habitat modifications.
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Affiliation(s)
- Ja-Hyun Kim
- Department of Biological Science, College of Biological Sciences and Biotechnology, Chungnam National University, Daejeon 305-764, Republic of Korea; Global Environmental Regulation and Compliance Center, Korea Institute of Toxicology, JinJu 660-844, Republic of Korea
| | - Dong-Hyuk Yeom
- Global Environmental Regulation and Compliance Center, Korea Institute of Toxicology, JinJu 660-844, Republic of Korea
| | - Kwang-Guk An
- Department of Biological Science, College of Biological Sciences and Biotechnology, Chungnam National University, Daejeon 305-764, Republic of Korea.
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Li ZH, Chen L, Wu YH, Li P, Li YF, Ni ZH. Effects of mercury on oxidative stress and gene expression of potential biomarkers in larvae of the Chinese rare minnow Gobiocypris rarus. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 67:245-251. [PMID: 24846661 DOI: 10.1007/s00244-014-0034-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/01/2014] [Indexed: 06/03/2023]
Abstract
Mercury levels have increased in aquatic food webs throughout the world and can be found at toxic levels in some biota. However, the molecular mechanisms and effects of mercuric chloride (Hg(2+)) remain poorly understood. In the present study, antioxidant parameters (superoxide dismutase, catalase, glutathione peroxidase, and malondialdehyde)-as well as a series of gene expressions, including cortisol receptor (cr), Na(+)/K(+)-ATPase (aptase), and prolactin (prl) genes involved in ion-regulatory process, insulin-like growth factor I (igf1) and growth hormone (gh) related to growth rate, as well as heat shock protein70 (hsp70) and metallothionein (mt) used as physiological stress identification-were measured in whole body of Chinese rare minnow larvae (Gobiocypris rarus) after exposure to Hg(2+) (0, 0.1, and 0.3 mg/L) for 4 days. Results show that oxidative stress was generated in fish exposed to Hg(2+) and that the transcription levels of cr, atpase, gh, hsp70, and mt genes increased in a dose-dependent manner, but expression levels of prl and igf1 genes were showed to be decreased in the treated groups. Based on principal component analysis, the correlation between gh and igf1 genes and cr and prl genes was negative. In conclusion, exposure to Hg(2+) could alter multiple physiological and molecular indices in fish; however, before those parameters are used as special biomarkers for monitoring Hg(2+) in aquatic environment, more detailed experiments in laboratory must be performed in the future.
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Affiliation(s)
- Zhi-Hua Li
- Key Laboratory of Freshwater Biodiversity Conservation (Ministry of Agriculture), Key Field Station for Fishery Resource and Environment in Upper-Middle Reaches of Yangtze River (Ministry of Agriculture), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China,
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Lin CH, Chou PH, Chen PJ. Two azole fungicides (carcinogenic triadimefon and non-carcinogenic myclobutanil) exhibit different hepatic cytochrome P450 activities in medaka fish. JOURNAL OF HAZARDOUS MATERIALS 2014; 277:150-158. [PMID: 24962053 DOI: 10.1016/j.jhazmat.2014.05.083] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 06/03/2023]
Abstract
Conazoles are a class of imidazole- or triazole-containing drugs commonly used as fungicides in agriculture and medicine. The broad application of azole drugs has led to the contamination of surface aquifers receiving the effluent of municipal or hospital wastewater or agricultural runoff. Several triazoles are rodent carcinogens; azole pollution is a concern to environmental safety and human health. However, the carcinogenic mechanisms associated with cytochrome P450 enzymes (CYPs) of conazoles remain unclear. We exposed adult medaka fish (Oryzias latipes) to continuous aqueous solutions of carcinogenic triadimefon and non-carcinogenic myclobutanil for 7 to 20 days at sub-lethal or environmentally relevant concentrations and assessed hepatic CYP activity and gene expression associated with CYP-mediated toxicity. Both triadimefon and myclobutanil induced hepatic CYP3A activity, but only triadimefon enhanced CYP1A activity. The gene expression of cyp3a38, cyp3a40, pregnane x receptor (pxr), cyp26b, retinoid acid receptor γ1 (rarγ1) and p53 was higher with triadimefon than myclobutanil. As well, yeast-based reporter gene assay revealed that 4 tested conazoles were weak agonists of aryl hydrocarbon receptor (AhR). We reveal differential CYP gene expression with carcinogenic and non-carcinogenic conazoles in a lower vertebrate, medaka fish. Liver CYP-enzyme induction may be a key event in conazole-induced tumorigenesis. This information is essential to evaluate the potential threat of conazoles to human health and fish populations in the aquatic environment.
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Affiliation(s)
- Chun-Hung Lin
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Pei-Hsin Chou
- Department of Environmental Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - Pei-Jen Chen
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan.
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Zhang Z, Jiang W, Jian Q, Song W, Zheng Z, Wang D, Liu X. Residues and dissipation kinetics of triazole fungicides difenoconazole and propiconazole in wheat and soil in Chinese fields. Food Chem 2014; 168:396-403. [PMID: 25172726 DOI: 10.1016/j.foodchem.2014.07.087] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/14/2014] [Accepted: 07/15/2014] [Indexed: 11/28/2022]
Abstract
An analytical method for simultaneously determining the residues of difenoconazole and propiconazole in wheat straw, wheat grain and soil was developed. Mean recoveries and relative standard deviations in all samples ranged 86.2-101.3% and 3.1-12.1% for propiconazole and difenoconazole. The half-lives of difenoconazole and propiconazole were 3.6-5.5days and 5.1-6.9days in wheat straws, and 4.9-5.8days and 6.1-8.4days in soil, respectively. The residues in wheat grain were found to be <0.01mg/kg, based on the application rate (135g a.i./ha) and the pre-harvest interval (PHI=28days) recommended by the manufacturer. The results suggest that the use of difenoconazole and propiconazole on wheat is considered to be safe under the Good Agricultural Practices (GAP) in the Chinese fields, and the main factors for pesticide residue in crops are application times, rates and pre-harvest intervals.
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Affiliation(s)
- Zhiyong Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu Province - State Key Laboratory Breeding Base/Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, P.R. China, Nanjing 210014, China.
| | - Wayne Jiang
- Department of Entomology, Michigan State University, East Lansing, MI 48824, USA
| | - Qiu Jian
- Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China, Beijing 100125, China
| | - Wencheng Song
- Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China, Beijing 100125, China
| | - Zuntao Zheng
- Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China, Beijing 100125, China
| | - Donglan Wang
- Key Laboratory of Food Quality and Safety of Jiangsu Province - State Key Laboratory Breeding Base/Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, P.R. China, Nanjing 210014, China
| | - Xianjin Liu
- Key Laboratory of Food Quality and Safety of Jiangsu Province - State Key Laboratory Breeding Base/Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, P.R. China, Nanjing 210014, China
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Quesada-García A, Valdehita A, Torrent F, Villarroel M, Hernando MD, Navas JM. Use of fish farms to assess river contamination: combining biomarker responses, active biomonitoring, and chemical analysis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 140-141:439-448. [PMID: 23928255 DOI: 10.1016/j.aquatox.2013.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 07/04/2013] [Accepted: 07/12/2013] [Indexed: 06/02/2023]
Abstract
Here we addressed the possible effects of trace levels of contaminants on fish by means of a combination of biomarker responses, active biomonitoring (ABM), and chemical analysis. In environmental studies, cytochromes P4501A (Cyp1A) and Cyp3A and related enzyme activities (7-ethoxyresorufin-O-deethylase, EROD, and benzyloxy-4-[trifluoromethyl]-coumarin-O-debenzyloxylase, BFCOD, respectively) are commonly used as biomarkers for evidencing exposure to a variety of contaminants. In a rainbow trout (Oncorhynchus mykiss) fish farm that is routinely sampled to obtain references regarding normal levels of such enzyme activities in freshwater fish, we observed a strong and punctual increase in these activities at the end of 2011. In order to shed light on the causes of this induction, we transferred some fish to a fish farm with controlled conditions and examined them using an active biomonitoring (ABM) approach. EROD activity showed a decrease of 80% from the original values after 7 days in the control farm, while BFCOD activity was also reduced after 15 days. Although not significant, a decrease in cyp1A and cyp3A mRNA levels was also observed. To determine the presence of pollutants, water and sediment samples from the river feeding the fish farm were analyzed by two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-TOF-MS). The screening study reflected a weak inflow of pollutants in the monitored area, which is located far from any industrial activity or densely populated cities. Trace levels of polyaromatic hydrocarbons (PAHs) and personal care products (the polycyclic musk fragrance HHCB, and triclosan) were detected in sediments, at concentrations ranging from 0.01 to 38 ng/g dry weight, and in water from 4 to 441 ng/L. The approach followed in this study proved useful as a biomonitoring technique for the early detection of trace contaminants.
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Affiliation(s)
- Alba Quesada-García
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, E-28040 Madrid, Spain.
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Yang J, Dong S, Zhu H, Jiang Q, Yang J. Molecular and expression analysis of manganese superoxide dismutase (Mn–SOD) gene under temperature and starvation stress in rotifer Brachionus calyciflorus. Mol Biol Rep 2012. [DOI: 10.1007/s11033-012-2308-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hartwig T, Corvalan C, Best NB, Budka JS, Zhu JY, Choe S, Schulz B. Propiconazole is a specific and accessible brassinosteroid (BR) biosynthesis inhibitor for Arabidopsis and maize. PLoS One 2012; 7:e36625. [PMID: 22590578 PMCID: PMC3348881 DOI: 10.1371/journal.pone.0036625] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 04/10/2012] [Indexed: 11/26/2022] Open
Abstract
Brassinosteroids (BRs) are steroidal hormones that play pivotal roles during plant development. In addition to the characterization of BR deficient mutants, specific BR biosynthesis inhibitors played an essential role in the elucidation of BR function in plants. However, high costs and limited availability of common BR biosynthetic inhibitors constrain their key advantage as a species-independent tool to investigate BR function. We studied propiconazole (Pcz) as an alternative to the BR inhibitor brassinazole (Brz). Arabidopsis seedlings treated with Pcz phenocopied BR biosynthetic mutants. The steady state mRNA levels of BR, but not gibberellic acid (GA), regulated genes increased proportional to the concentrations of Pcz. Moreover, root inhibition and Pcz-induced expression of BR biosynthetic genes were rescued by 24epi-brassinolide, but not by GA(3) co-applications. Maize seedlings treated with Pcz showed impaired mesocotyl, coleoptile, and true leaf elongation. Interestingly, the genetic background strongly impacted the tissue specific sensitivity towards Pcz. Based on these findings we conclude that Pcz is a potent and specific inhibitor of BR biosynthesis and an alternative to Brz. The reduced cost and increased availability of Pcz, compared to Brz, opens new possibilities to study BR function in larger crop species.
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Affiliation(s)
- Thomas Hartwig
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
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