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Lee JW, Shim I, Park K. Proposing Effective Ecotoxicity Test Species for Chemical Safety Assessment in East Asia: A Review. TOXICS 2023; 12:30. [PMID: 38250986 PMCID: PMC10819827 DOI: 10.3390/toxics12010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024]
Abstract
East Asia leads the global chemical industry, but environmental chemical risk in these countries is an emerging concern. Despite this, only a few native species that are representative of East Asian environments are listed as test species in international guidelines compared with those native to Europe and America. This review suggests that Zacco platypus, Misgurnus anguillicaudatus, Hydrilla verticillata, Neocaridina denticulata spp., and Scenedesmus obliquus, all resident to East Asia, are promising test species for ecotoxicity tests. The utility of these five species in environmental risk assessment (ERA) varies depending on their individual traits and the state of ecotoxicity research, indicating a need for different applications of each species according to ERA objectives. Furthermore, the traits of these five species can complement each other when assessing chemical effects under diverse exposure scenarios, suggesting they can form a versatile battery for ERA. This review also analyzes recent trends in ecotoxicity studies and proposes emerging research issues, such as the application of alternative test methods, comparative studies using model species, the identification of specific markers for test species, and performance of toxicity tests under environmentally relevant conditions. The information provided on the utility of the five species and alternative issues in toxicity tests could assist in selecting test species suited to study objectives for more effective ERA.
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Affiliation(s)
- Jin Wuk Lee
- Research of Environmental Health, National Institute of Environmental Research, Incheon 404-708, Republic of Korea; (I.S.); (K.P.)
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Tang CH, Chen WY, Wu CC, Lu E, Shih WY, Chen JW, Tsai JW. Ecosystem metabolism regulates seasonal bioaccumulation of metals in atyid shrimp (Neocaridina denticulata) in a tropical brackish wetland. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 225:105522. [PMID: 32544806 DOI: 10.1016/j.aquatox.2020.105522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 05/14/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
Natural dissolved organic matter (DOM) forms the base of aquatic food webs and is a key environmental factor that affects the bioavailability of metals for aquatic organisms. Aquatic communities are naturally exposed simultaneously to environments containing a mixture of metals and varying DOM levels and compositions. However, the exact effect of DOM on metal bioaccumulation is difficult to predict due to temporal and spatial variations in sources, production, and consumption of DOM, and to interactions between DOM and metals. Ecosystem metabolism describes the process of organic carbon production and consumption and, therefore, the trophic status of ecosystems. However, whether and how ecosystem metabolism determines the seasonality of metal bioaccumulation remains unclear. The present study used in-situ water quality sondes and discrete field samplings to establish the relationship between the seasonality of ecosystem metabolism; related environmental and limnological regulators; the metal speciation and concentration in bulk water and sediments; and their metal bioaccumulation. The target population consisted of atyid shrimp (Neocaridina denticulata) in a brackish constructed wetland in tropical Taiwan was sampled between August 2014 and November 2015. Metal bioaccumulation displayed distinct seasonal patterns that peaked in summer (Cu, Cd, Cr, Zn, Mn, and Se) or winter (Pb and Ni). The in situ production (gross primary production) and heterotrophic consumption (ecosystem respiration) of organic matter significantly decreased with increasing waterborne DOM levels in this heterotrophic wetland. Both dissolved free metals bioavailable for respiratory surfaces (As, Zn, Cu, and Cr) and insoluble metals available for dietary intake (Mn and Ni) decreased with increasing DOM, as well as with decreasing gross primary production and ecosystem respiration. Seasonal variations of metal bioaccumulation also paralleled the transition in wetland trophic status, which reflected the effect of potential qualitative changes in the wetland DOM pool. Bioaccumulation of most metals displayed strong correlations with gross primary production, ecosystem respiration, and wetland trophic status. Our findings demonstrated that ecosystem metabolism can play a key mediating role in the seasonality of metal bioaccumulation in atyid shrimp, as it links the variation and interaction between DOM level/source, the speciation/bioavailability, and the uptake efficiency for metals by aquatic organisms. This study contributes to the temporal-specific risk assessment of aquatic metal exposure in regional environmental settings. It also reveals ecosystem-specific spectra in the context of changes in climate and environment.
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Affiliation(s)
- Cheng-Hao Tang
- Department of Oceanography, National Sun Yat-Sen University, 70 Lienhai Road, Kaohsiung 804, Taiwan
| | - Wei-Yu Chen
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd., Kaohsiung 807, Taiwan
| | - Chin-Ching Wu
- Department of Public Health, China Medical University, No.91, Hsueh-Shih Road, Taichung 40402, Taiwan
| | - Ezekiel Lu
- Department of Biological Science and Technology, China Medical University, No.91, Hsueh-Shih Road, Taichung 40402, Taiwan
| | - Wan-Yu Shih
- Department of Science Education and Application, National Taichung University of Education, No. 140, Minsheng Rd., Taichung 403, Taiwan
| | - Jein-Wen Chen
- Department of Food and Beverage Management, Cheng-Shiu University, No. 840, Chengcing Road, Kaohsiung 83347, Taiwan; Center for Environmental Toxin and Emerging-Contaminant Research, Cheng-Shiu University, No. 840, Chengcing Road, Kaohsiung 83347, Taiwan; Super Micro Mass Research and Technology Center, Cheng-Shiu University, No. 840, Chengcing Road, Kaohsiung 83347, Taiwan
| | - Jeng-Wei Tsai
- Department of Biological Science and Technology, China Medical University, No.91, Hsueh-Shih Road, Taichung 40402, Taiwan.
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Bereketoglu C, Arga KY, Eraslan S, Mertoglu B. Genome reprogramming in Saccharomyces cerevisiae upon nonylphenol exposure. Physiol Genomics 2017; 49:549-566. [PMID: 28887370 DOI: 10.1152/physiolgenomics.00034.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/17/2017] [Accepted: 08/28/2017] [Indexed: 02/07/2023] Open
Abstract
Bioaccumulative environmental estrogen, nonylphenol (NP; 4-nonylphenol), is widely used as a nonionic surfactant and can affect human health. Since genomes of Saccharomyces cerevisiae and higher eukaryotes share many structural and functional similarities, we investigated subcellular effects of NP on S. cerevisiae BY4742 cells by analyzing genome-wide transcriptional profiles. We examined effects of low (1 mg/l; <15% cell number reduction) and high (5 mg/l; >65% cell number reduction) inhibitory concentration exposures for 120 or 180 min. After 120 and 180 min of 1 mg/l NP exposure, 187 (63 downregulated, 124 upregulated) and 103 genes (56 downregulated, 47 upregulated), respectively, were differentially expressed. Similarly, 678 (168 repressed, 510 induced) and 688 genes (215 repressed, 473 induced) were differentially expressed in cells exposed to 5 mg/l NP for 120 and 180 min, respectively. Only 15 downregulated and 63 upregulated genes were common between low and high NP inhibitory concentration exposure for 120 min, whereas 16 downregulated and 31 upregulated genes were common after the 180-min exposure. Several processes/pathways were prominently affected by either low or high inhibitory concentration exposure, while certain processes were affected by both inhibitory concentrations, including ion transport, response to chemicals, transmembrane transport, cellular amino acids, and carbohydrate metabolism. While minimal expression changes were observed with low inhibitory concentration exposure, 5 mg/l NP treatment induced substantial expression changes in genes involved in oxidative phosphorylation, cell wall biogenesis, ribosomal biogenesis, and RNA processing, and encoding heat shock proteins and ubiquitin-conjugating enzymes. Collectively, these results provide considerable information on effects of NP at the molecular level.
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Affiliation(s)
- Ceyhun Bereketoglu
- Department of Bioengineering, Faculty of Engineering, Marmara University; Goztepe, Kadikoy, Istanbul, Turkey; .,Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Gümüşhane University; Baglarbasi, Gumushane, Turkey; and
| | - Kazim Yalcin Arga
- Department of Bioengineering, Faculty of Engineering, Marmara University; Goztepe, Kadikoy, Istanbul, Turkey
| | - Serpil Eraslan
- Department of Chemical Engineering, Boğaziçi University, Bebek, Istanbul, Turkey
| | - Bulent Mertoglu
- Department of Bioengineering, Faculty of Engineering, Marmara University; Goztepe, Kadikoy, Istanbul, Turkey
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Nan P, Yan S, Wang Y, Du Q, Chang Z. Gene expression profile changes induced by acute toxicity of [C 16 mim]Cl in loach (Paramisgurnus dabryanus). ENVIRONMENTAL TOXICOLOGY 2017; 32:404-416. [PMID: 26892570 DOI: 10.1002/tox.22244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/12/2016] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Ionic liquids (ILs) are widely used as reaction media in various commercial applications. Many reports have indicated that most ILs are poorly decomposed by microorganisms and are toxic to aquatic organisms. In this study, differential gene expression profiling was conducted using a suppression subtraction hybridization cDNA library from hepatic tissue of the loach (Paramisgurnus dabryanus) after exposure to 1-hexadecyl-3-methylimidazolium chloride ([C16 mim]Cl), a representative IL. Two hundred and fifty-nine differentially expressed candidate genes, whose expression was altered by >2.0-fold by the [C16 mim]Cl treatment, were identified, including 127 upregulated genes and 132 downregulated genes. A gene ontology analysis of the known genes isolated in this study showed that [C16 mim]Cl-responsive genes were involved in cell cycle, stimulus response, defense response, DNA damage response, oxidative stress responses, and other biological responses. To identify candidate genes that may be involved in [C16 mim]Cl-induced toxicity, 259 clones were examined by Southern blot macroarray hybridization, and 20 genes were further characterized using quantitative real-time polymerase chain reaction. Finally, six candidate genes were selected, including three DNA damage response genes, two toxic substance metabolic genes, and one stress protein gene. Our results indicate that these changes in gene expression are associated with [C16 mim]Cl-induced toxicity, and that these six candidate genes can be promising biomarkers for detecting [C16 mim]Cl-induced toxicity. Therefore, this study demonstrates the use of a powerful assay to identify genes potentially involved in [C16 mim]Cl toxicity, and it provides a foundation for the further study of related genes and the molecular mechanism of [C16 mim]Cl toxicity. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 404-416, 2017.
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Affiliation(s)
- Ping Nan
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, No.46, East Jianshe Road, Xinxiang, Henan, 453007, China
| | - Shuaiguo Yan
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, No.46, East Jianshe Road, Xinxiang, Henan, 453007, China
| | - Yaxing Wang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, No.46, East Jianshe Road, Xinxiang, Henan, 453007, China
| | - Qiyan Du
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, No.46, East Jianshe Road, Xinxiang, Henan, 453007, China
| | - Zhongjie Chang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, No.46, East Jianshe Road, Xinxiang, Henan, 453007, China
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Mykles DL, Hui JHL. Neocaridina denticulata: A Decapod Crustacean Model for Functional Genomics. Integr Comp Biol 2015; 55:891-7. [DOI: 10.1093/icb/icv050] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Wu YH, Wu TM, Hong CY, Wang YS, Yen JH. Screening differentially expressed genes in an amphipod (Hyalella azteca) exposed to fungicide vinclozolin by suppression subtractive hybridization. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2014; 49:856-863. [PMID: 25190560 DOI: 10.1080/03601234.2014.938556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Vinclozolin, a dicarboximide fungicide, is an endocrine disrupting chemical that competes with an androgenic endocrine disruptor compound. Most research has focused on the epigenetic effect of vinclozolin in humans. In terms of ecotoxicology, understanding the effect of vinclozolin on non-target organisms is important. The expression profile of a comprehensive set of genes in the amphipod Hyalella azteca exposed to vinclozolin was examined. The expressed sequence tags in low-dose vinclozolin-treated and -untreated amphipods were isolated and identified by suppression subtractive hybridization. DNA dot blotting was used to confirm the results and establish a subtracted cDNA library for comparing all differentially expressed sequences with and without vinclozolin treatment. In total, 494 differentially expressed genes, including hemocyanin, heatshock protein, cytochrome, cytochrome oxidase and NADH dehydrogenase were detected. Hemocyanin was the most abundant gene. DNA dot blotting revealed 55 genes with significant differential expression. These genes included larval serum protein 1 alpha, E3 ubiquitin-protein ligase, mitochondrial cytochrome c oxidase, mitochondrial protein, proteasome inhibitor, hemocyanin, zinc-finger-containing protein, mitochondrial NADH-ubiquinone oxidoreductase and epididymal sperm-binding protein. Vinclozolin appears to upregulate stress-related genes and hemocyanin, related to immunity. Moreover, vinclozolin downregulated NADH dehydrogenase, related to respiration. Thus, even a non-lethal concentration of vinclozolin still has an effect at the genetic level in H. azteca and presents a potential risk, especially as it would affect non-target organism hormone metabolism.
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Affiliation(s)
- Yun H Wu
- a Department of Agricultural Chemistry , National Taiwan University , Taipei , Taiwan
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蔡 伊. Development of Ecotoxicogenomic Biomarkers on the Freshwater Shrimp (Neocaridina denticulate) Following Short-Term Exposure to Dipropyl Phthalate. INTERNATIONAL JOURNAL OF ECOLOGY 2013. [DOI: 10.12677/ije.2013.24007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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