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Byeon E, Jeong H, Kim MS, Yun SC, Lee JS, Lee MC, Kim JH, Sayed AEDH, Bo J, Kim HS, Yoon C, Hagiwara A, Sakakura Y, Lee JS. Toxicity and speciation of inorganic arsenics and their adverse effects on in vivo endpoints and oxidative stress in the marine medaka Oryzias melastigma. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134641. [PMID: 38788572 DOI: 10.1016/j.jhazmat.2024.134641] [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: 01/28/2024] [Revised: 04/24/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024]
Abstract
Here, we investigate the effects of acute and chronic exposure to arsenate (AsV) and arsenite (AsIII) in the marine medaka Oryzias melastigma. In vivo effects, biotransformation, and oxidative stress were studied in marine medaka exposed to the two inorganic arsenics for 4 or 28 days. An investigation of embryonic development revealed no effect on in vivo parameters, but the hatching rate increased in the group exposed to AsIII. Exposure to AsIII also caused the greatest accumulation of arsenic in medaka. For acute exposure, the ratio of AsV to AsIII was higher than that of chronic exposure, indicating that bioaccumulation of inorganic arsenic can induce oxidative stress. The largest increase in oxidative stress was observed following acute exposure to AsIII, but no significant degree of oxidative stress was induced by chronic exposure. During acute exposure to AsV, the increase in the enzymatic activity of glutathione-S-transferase (GST) was twice as high compared with exposure to AsIII, suggesting that GST plays an important role in the initial detoxification process. In addition, an RNA-seq-based ingenuity pathway analysis revealed that acute exposure to AsIII may be related to cell-cycle progression. A network analysis using differentially expressed genes also revealed a potential link between the generation of inflammatory cytokines and oxidative stress due to arsenic exposure.
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Affiliation(s)
- Eunjin Byeon
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Haksoo Jeong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Min-Sub Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Seong Chan Yun
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Jin-Sol Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Min-Chul Lee
- Department of Food & Nutrition, College of Bio-Nano Technology, Gachon University, Seongnam 13120, South Korea
| | - Jin-Hyoung Kim
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, South Korea
| | | | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Chulho Yoon
- Ochang Center, Korea Basic Science Institute, Cheongju 28119, South Korea
| | - Atsushi Hagiwara
- Institute of Integrated Science and Technology, Graduate School of Fisheries Science and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Yoshitaka Sakakura
- Institute of Integrated Science and Technology, Graduate School of Fisheries Science and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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Nunes SM, Josende ME, Fattorini D, Regoli F, Monserrat JM, Ventura-Lima J. Polystyrene microplastic alters the redox state and arsenic metabolization in the freshwater bivalve Limnoperna fortunei. Toxicol Res (Camb) 2023; 12:824-832. [PMID: 37915497 PMCID: PMC10615819 DOI: 10.1093/toxres/tfad066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/18/2023] [Accepted: 07/31/2023] [Indexed: 11/03/2023] Open
Abstract
Most organisms possess the capacity to metabolize arsenic (As) accumulating compounds to less toxic forms, thus minimizing the adverse effect induced by this metalloid. However, other contaminants may to interfere with As metabolism, contributing to the accumulation of more toxic compounds. Microplastics (MPs) are omnipresent in aquatic environment and may induce toxicological effects (alone or in combination with other contaminants) on living organisms. Therefore, the objective of the present study was to evaluate the effect of the exposure of the freshwater clam Limnoperna fortunei to a combination of MP (4 and 40 μg/L of polystyrene microbeads, 1.05 μm) and As (50 μg/L) for 48 h, evaluating the accumulation and metabolization of As and oxidative stress parameters, such as catalase (CAT), glutathione-S-transferase activities, total antioxidant competence, reduced glutathione (GSH), and lipid damage in the gills and digestive glands. Results revealed that low MP concentration disrupts the redox state of the digestive gland by a decrease in the antioxidant activity (CAT and total antioxidant capacity). GSH levels in the gills of animals exposed to MP (4 μg/L) alone and the combination of MP + As increased, concomitant with an increase in the percentage of toxic compounds, indicating the effect of MP on As metabolism. Although, few studies evaluated the effect of coexposure to MP + As by considering metabolization of metalloid in freshwater bivalve, our results revealed that exposure to MP reduced the metabolization capacity of As, favoring the accumulation of more toxic compounds besides the MP alone, which showed a pro-oxidant effect in L. fortunei.
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Affiliation(s)
- Silvana Manske Nunes
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande-FURG, Avenida Itália, km 8, s/nº, Rio Grande 96203900, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB-FURG, Rio Grande, Brazil
| | - Marcelo Estrella Josende
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande-FURG, Avenida Itália, km 8, s/nº, Rio Grande 96203900, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB-FURG, Rio Grande, Brazil
| | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianchi, Ancona 60100, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianchi, Ancona 60100, Italy
| | - José Maria Monserrat
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande-FURG, Avenida Itália, km 8, s/nº, Rio Grande 96203900, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB-FURG, Rio Grande, Brazil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande-FURG, Avenida Itália, km 8, s/nº, Rio Grande 96203900, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB-FURG, Rio Grande, Brazil
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Müller L, Josende ME, Soares GC, Monserrat JM, Ventura-Lima J. Multigenerational effects of co-exposure to dimethylarsinic acid and polystyrene microplastics on the nematode Caenorhabditis elegans. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:85359-85372. [PMID: 37382819 DOI: 10.1007/s11356-023-28050-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/29/2023] [Indexed: 06/30/2023]
Abstract
In the current study, we assessed the impact of DMA (dimethylarsinic acid) and MPs (microplastics) interactions in C. elegans over the course of five generations. We found that the redox state of the organisms changed over generations as a result of exposure to both pollutants. From the third generation onward, exposure to MPs reduced GST activity, indicating reduced detoxifying abilities of these organisms. Additionally, dimethylarsinic exposure decreased the growth of organisms in the second, fourth, and fifth generations. In comparison to isolated pollutants, the cumulative effects of co-exposure to DMA and MPs seem to have been more harmful to the organisms, as demonstrated by correlation analysis. These findings demonstrate that DMA, despite being considered less hazardous than its inorganic equivalents, can still have toxic effects on species at low concentrations and the presence of MPs, can worsen these effects.
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Affiliation(s)
- Larissa Müller
- Instituto de Ciências Biológicas (ICB), Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS, 96201-900, Brazil
- Programa de Pós-Graduação Em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Marcelo Estrella Josende
- Instituto de Ciências Biológicas (ICB), Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS, 96201-900, Brazil
- Programa de Pós-Graduação Em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Gabriela Corrêa Soares
- Instituto de Ciências Biológicas (ICB), Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS, 96201-900, Brazil
- Programa de Pós-Graduação Em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - José Marìa Monserrat
- Instituto de Ciências Biológicas (ICB), Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS, 96201-900, Brazil
- Programa de Pós-Graduação Em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS, 96201-900, Brazil.
- Programa de Pós-Graduação Em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil.
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Jeong H, Yoon C, Lee JS, Byeon E. Differential susceptibility to arsenic in glutathione S-transferase omega 2 (GST-O2)-targeted freshwater water flea Daphnia magna mutants. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 254:106364. [PMID: 36463774 DOI: 10.1016/j.aquatox.2022.106364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/09/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
To examine the role of glutathione S-transferase omega class (GST-O2) genes in the biotransformation and detoxification in Daphnia magna, various responses such as in vivo endpoints, arsenic speciation, enzymatic activities, and gene expression pathways related to arsenic metabolism were investigated in wild-type (WT) and GST-O2-mutant-type (MT) fleas produced by CRISPR/Cas9. Sensitivity to arsenic in MT fleas was higher than in WT fleas. Also, the reduction rate of arsenate (AsV) to arsenite (AsIII) in the MT group was significantly lower and led to accumulation of higher arsenic concentrations, resulting in decreased protection against arsenic toxicity. Relative mRNA expression of other GST genes in the GST-O2-targeted MT group generally increased but the enzymatic activity of GST decreased compared with the WT group. Oxidative stress on arsenic exposure was more strongly induced in the MT group compared with the WT group, resulting in a decrease in the ability to defend against toxicity in GST-O2-targeted mutant D. magna. Our results suggest that GST-O2 plays an important role in arsenic biotransformation and detoxification functions in D. magna.
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Affiliation(s)
- Haksoo Jeong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Cheolho Yoon
- Ochang Center, Korea Basic Science Institute, Cheongju 28119, South Korea
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
| | - Eunjin Byeon
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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Byeon E, Kim MS, Kim DH, Lee Y, Jeong H, Lee JS, Hong SA, Park JC, Kang HM, Sayed AEDH, Kato Y, Bae S, Watanabe H, Lee YH, Lee JS. The freshwater water flea Daphnia magna NIES strain genome as a resource for CRISPR/Cas9 gene targeting: The glutathione S-transferase omega 2 gene. AQUATIC TOXICOLOGY 2022; 242:106021. [PMID: 34856461 DOI: 10.1016/j.aquatox.2021.106021] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/26/2021] [Accepted: 11/07/2021] [Indexed: 02/07/2023]
Abstract
The water flea Daphnia magna is a small freshwater planktonic animal in the Cladocera. In this study, we assembled the genome of the D. magna NIES strain, which is widely used for gene targeting but has no reported genome. We used the long-read sequenced data of the Oxford nanopore sequencing tool for assembly. Using 3,231 genetic markers, the draft genome of the D. magna NIES strain was built into ten linkage groups (LGs) with 483 unanchored contigs, comprising a genome size of 173.47 Mb. The N50 value of the genome was 12.54 Mb and the benchmarking universal single-copy ortholog value was 98.8%. Repeat elements in the D. magna NIES genome were 40.8%, which was larger than other Daphnia spp. In the D. magna NIES genome, 15,684 genes were functionally annotated. To assess the genome of the D. magna NIES strain for CRISPR/Cas9 gene targeting, we selected glutathione S-transferase omega 2 (GST-O2), which is an important gene for the biotransformation of arsenic in aquatic organisms, and targeted it with an efficient make-up (25.0%) of mutant lines. In addition, we measured reactive oxygen species and antioxidant enzymatic activity between wild type and a mutant of the GST-O2 targeted D. magna NIES strain in response to arsenic. In this study, we present the genome of the D. magna NIES strain using GST-O2 as an example of gene targeting, which will contribute to the construction of deletion mutants by CRISPR/Cas9 technology.
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Affiliation(s)
- Eunjin Byeon
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Min-Sub Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Duck-Hyun Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Yoseop Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Haksoo Jeong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Jin-Sol Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Sung-Ah Hong
- Department of Chemistry, College of Nature Sciences, Hanyang University, Seoul 04763, South Korea
| | - Jun Chul Park
- Département des Sciences, Université Sainte-Anne, Church Point, NS B0W 1M0, Canada
| | - Hye-Min Kang
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan 49111, South Korea
| | - Alaa El-Din H Sayed
- Department of Zoology, Faculty of Sciences, Assiut University, Assiut 71516, Egypt
| | - Yasuhiko Kato
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Sangsu Bae
- Department of Chemistry, College of Nature Sciences, Hanyang University, Seoul 04763, South Korea
| | - Hajime Watanabe
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Young Hwan Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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Nunes SM, Müller L, Simioni C, Ouriques LC, Gelesky MA, Fattorini D, Regoli F, Monserrat JM, Ventura-Lima J. Impact of different crystalline forms of nTiO 2 on metabolism and arsenic toxicity in Limnoperna fortunei. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138318. [PMID: 32403012 DOI: 10.1016/j.scitotenv.2020.138318] [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: 10/08/2019] [Revised: 03/24/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Arsenic (As) is a ubiquitous contaminant in the environment and it is known to induce oxidative stress in aquatic organisms. In an attempt to remove As from water, some studies have suggested the titanium dioxide nanomaterial (nTiO2) as a promising alternative. However, it has been observed that nTiO2 can induce toxicity alone or in combination with metals, and this toxicity is dependent on its crystalline form of nanomaterial (mainly rutile as nTiO2R and anatase as nTiO2A, respectively). Considering that both (nTiO2 and As) can occur together, the objective of this study was to evaluate if co-exposure to rutile and anatase may influence accumulation, metabolisation, and toxicity of arsenite (As+3) in the golden mussel Limnoperna fortunei after 48 h of co-exposure to nTiO2 (1 mg/L) and As (50 μg/L). Accumulation and chemical speciation of As in organisms were determined. Also, biochemical analyses, such as the activity of the enzymes glutathione S-transferase omega (GSTΩ), catalase (CAT) and glutathione S-transferase (GST), as well as lipid peroxidation (LPO) were investigated. Results showed that co-exposure to nTiO2A + As changed accumulation pattern of metalloid in gills and digestive gland. Both crystalline forms of nTiO2 affected the metabolisation capacity favoring the accumulation of more toxic As compounds and nTiO2A alone or in combination with As showed induce oxidative stress in gills of L. fortunei. In this way, it has a high potential risk of the co-exposure of these contaminants to aquatic organisms, and it also needs to consider the nanomaterial (nTiO2) properties and their application in the environmental remediation, carefully and judiciously.
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Affiliation(s)
- Silvana Manske Nunes
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas, ICB - FURG, Rio Grande, RS, Brazil.
| | - Larissa Müller
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas, ICB - FURG, Rio Grande, RS, Brazil
| | - Carmen Simioni
- Programa de Pós-graduação em Biologia Celular e Desenvolvimento, Centro de Ciências Biológicas (CCB), Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | - Luciane Cristina Ouriques
- Programa de Pós-graduação em Biologia Celular e Desenvolvimento, Centro de Ciências Biológicas (CCB), Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil; Departamento de Biologia Celular, Embriologia e Genética, CCB - UFSC, Florianópolis, SC, Brazil
| | | | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche -, Ancona, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche -, Ancona, Italy
| | - José Maria Monserrat
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas, ICB - FURG, Rio Grande, RS, Brazil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas, ICB - FURG, Rio Grande, RS, Brazil.
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Müller L, Nunes SM, Villar N, Gelesky M, Tavella RA, da Silva Junior FMR, Fattorini D, Regoli F, Monserrat JM, Ventura-Lima J. Genotoxic effect of dimethylarsinic acid and the influence of co-exposure to titanium nanodioxide (nTiO 2) in Laeonereis culveri (Annelida, Polychaeta). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:19-27. [PMID: 31170592 DOI: 10.1016/j.scitotenv.2019.05.259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Few data are available about the effect of dimethylated forms (DMA) on aquatic organisms. As rarely a contaminant occurs alone, studies evaluating the combined effect of different contaminants in aquatic organisms are needed. In fact, the presence of nanomaterials, such as titanium dioxide nanoparticles (nTiO2), in the aquatic environment is now a reality due to its intensive production and use. So, this study evaluated the toxicological effects of DMA in an acute exposure condition and considered the potential influence of nTiO2 on the effects induced by DMA in the polychaete, Laeonereis culveri. The animals were exposed over 48 h to DMA (50 and 500 μg/l) alone or in combination with nTiO2 (1 mg/l). Biochemical parameters such as concentration of reactive oxygen species (ROS), glutathione-S-transferase (GST) activity, levels of reduced glutathione levels (GSH) and macromolecular (lipid and DNA) damage were evaluated, as well the DNA repair system. In addition, the accumulation of total As and the chemical speciation of the metalloid in the organisms was determined. The results showed that: (1) only the group exposed to 500 μg of DMA/l accumulated As and when co-exposed to nTiO2, this accumulation was not observed. (2) The levels of ROS increased in the group exposed to 50 μg/l of DMA alone and the effect was reversed when this group was co-exposed to nTiO2 (3) None of the treatments showed altered GST activity or GSH levels. (4) All groups that received nTiO2 (alone or in combination with DMA) showed lipid peroxidation. (5) The exposure to DMA (both concentrations) alone or in combination with nTiO2 induced DNA damage in L. culveri. These results showed that DMA exhibits a genotoxic effect and that co-exposure to nTiO2 had an influence on its toxicity. So the occurrence of both contaminants simultaneously can represent a threat to aquatic biota.
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Affiliation(s)
- Larissa Müller
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil.
| | - Silvana Manske Nunes
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Nágila Villar
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
| | - Marcos Gelesky
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Química Tecnológica e Ambiental-FURG, Brazil
| | | | - Flávio Manoel Rodrigues da Silva Junior
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências da Saúde-FURG, Brazil
| | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - José Maria Monserrat
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil.
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8
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Cordeiro L, Müller L, Manske Nunes S, Kist LW, Bogo MR, Ruas CP, Gelesky M, Wasielesky W, Fattorini D, Regoli F, Monserrat JM, Ventura-Lima J. Co-exposure to nTiO 2 impairs arsenic metabolism and affects antioxidant capacity in the marine shrimp Litopenaeus vannamei. Drug Chem Toxicol 2019; 44:30-38. [PMID: 31257991 DOI: 10.1080/01480545.2018.1563610] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Aquatic animals are vulnerable to arsenic (As) toxicity. However, rarely does a contaminant occur alone in the aquatic environment. For this reason, this study was conducted to evaluate whether titanium dioxide nanoparticles (nTiO2) can interfere with the effects induced by As in Litopenaeus vannamei. Arsenic accumulation and metabolic capacity; expression and enzymatic activity of GSTΩ (glutathione-S-transferase omega isoform); antioxidant responses such as GSH, GR, and GST (reduced glutathione levels, glutathione reductase, and glutathione-S-transferase activity, respectively); and lipid peroxidation in the gills and hepatopancreas of shrimp were evaluated. The results are summarized as follows: (1) higher accumulation of As occurred in both tissues after exposure to As alone; (2) co-exposure to nTiO2 affected the capacity to metabolize As; (3) GSTΩ gene expression was not modified, but its activity was decreased by co-exposure to both contaminants; (4) As alone increased the GSH levels in the hepatopancreas, and co-exposure to nTiO2 reduced these levels in both tissues; (5) a decrease in the GST activity in the gills occurred with all treatments; (6) in the gills, GR activity was increased by As, and nTiO2 reversed this increase, whereas in the hepatopancreas co-exposure inhibited enzyme activity; (7) only in the hepatopancreas lipid damage was observed when animals were exposed to As or nTiO2 but not in co-exposure. The results showed that the As induces toxic effects in both tissues of shrimp and that co-exposure to nTiO2 can potentiate these effects and decrease the capacity to metabolize As, favoring the accumulation of more toxic compounds.
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Affiliation(s)
- Lucas Cordeiro
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Ciências Fisiológicas- FURG, Rio Grande, Brasil
| | - Larissa Müller
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brasil
| | - Silvana Manske Nunes
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Ciências Fisiológicas- FURG, Rio Grande, Brasil
| | - Luiza Wilges Kist
- Centro de Biologia Genômica e Molecular-Pontificia Universidade Católica do Rio Grande do Sul-PUCRS, Rio Grande, Brasil
| | - Mauricio Reis Bogo
- Centro de Biologia Genômica e Molecular-Pontificia Universidade Católica do Rio Grande do Sul-PUCRS, Rio Grande, Brasil
| | - Caroline Pires Ruas
- Programa de Pós-Graduação em Química Tecnológica e Ambiental-FURG, Rio Grande, Brasil
| | - Marcos Gelesky
- Programa de Pós-Graduação em Química Tecnológica e Ambiental-FURG, Rio Grande, Brasil
| | | | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente Università Politecnica delle Marche, Ancona, Italy.,Conisma Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente Università Politecnica delle Marche, Ancona, Italy.,Conisma Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - José Marìa Monserrat
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Ciências Fisiológicas- FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Aquacultura-FURG, Rio Grande, Brasil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Ciências Fisiológicas- FURG, Rio Grande, Brasil.,Programa de Pós-Graduação em Aquacultura-FURG, Rio Grande, Brasil
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9
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Chen L, Wu H, Zhao J, Zhang W, Zhang L, Sun S, Yang D, Cheng B, Wang Q. The role of GST omega in metabolism and detoxification of arsenic in clam Ruditapes philippinarum. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 204:9-18. [PMID: 30170209 DOI: 10.1016/j.aquatox.2018.08.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 08/21/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
The major hazard of arsenic in living organisms is increasingly being recognized. Marine mollusks are apt to accumulate high levels of arsenic, but knowledge related to arsenic detoxification in marine mollusks is still less than sufficient. In this study, arsenic bioaccumulation as well as the role of glutathione S-transferase omega (GSTΩ) in the process of detoxification were investigated in the Ruditapes philippinarum clam after waterborne exposure to As(III) or As(V) for 30 days. The results showed that the gills accumulated significantly higher arsenic levels than the digestive glands. Arsenobetaine (AsB) and dimethylarsenate (DMA) accounted for most of the arsenic found, and monomethylarsonate (MMA) can be quickly metabolized. A subcellular distribution analysis showed that most arsenic was in biologically detoxified metal fractions (including metal-rich granules and metallothionein-like proteins), indicating their important roles in protecting cells from arsenic toxicity. The relative mRNA expressions of two genes encoding GSTΩ were up-regulated after arsenic exposure, and the transcriptional responses were more sensitive to As(III) than As(V). The recombinant GSTΩs exhibited high activities at optimal conditions, especially at 37 °C and pH 4-5, with an As(V) concentration of 60 mM. Furthermore, the genes encoding GSTΩ significantly enhance the arsenite tolerance but not the arsenate tolerance of E. coli AW3110 (DE3) (ΔarsRBC). It can be deduced from these results that GSTΩs play an important role in arsenic detoxification in R. philippinarum.
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Affiliation(s)
- Lizhu Chen
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Shandong Marine Resource and Environment Research Institute, Yantai 264006, PR China
| | - Huifeng Wu
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China.
| | - Jianmin Zhao
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China
| | - Wei Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - Li Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - Shan Sun
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, PR China
| | - Dinglong Yang
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China
| | - Bo Cheng
- Aquatic Products Quality and Standards Research Center, Chinese Academy of Fishery Sciences, Beijing 100141, PR China
| | - Qing Wang
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China.
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10
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Abstract
Fish can be exposed to multiple stressors at the same time, including natural toxins, environmental pollutants or feed contamination. In this study, we report on the effects of controlled exposure of rainbow trout (Oncorhynchus mykiss) to multiple stressors. In doing so, we test the hypothesis that cyanobacterial biomass and arsenic in feed combine to enhance negative effects on fish, including modulation of antioxidant response. The trout (mean weight 288 ± 59 g) were divided into six experimental groups of 25 fish each (C - control group; B - 3% lyophilised toxic cyanobacterial biomass; As5 - arsenic at 5 mg·kg–1; As50 - arsenic at 50 mg·kg–1; and two combinations of cyanobacterial biomass and arsenic (B+As5 and B+As50). All indicators of oxidative stress were determined using standard methods, showing significant changes. Overall antioxidant capacity (ferric reducing antioxidant power) decreased significantly in the liver, gills and heart after 10-days, while lipid peroxidation (thiobarbituric acid reactive substances) increased in the liver of groups exposed to cyanobacterial biomass, and in the heart of groups exposed to increased concentrations of arsenic and those under combined exposure. Levels of glutathione reductase showed a significant reduction following exposure, especially in the gills and liver. Our results indicate that the antioxidant system plays an important role in the protective response of tissues to stressors, and especially arsenic.
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11
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Pires A, Velez C, Figueira E, Soares AMVM, Freitas R. Effects of sediment contamination on physiological and biochemical responses of the polychaete Diopatra neapolitana, an exploited natural resource. MARINE POLLUTION BULLETIN 2017; 119:119-131. [PMID: 28351663 DOI: 10.1016/j.marpolbul.2017.03.014] [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: 12/07/2016] [Revised: 03/05/2017] [Accepted: 03/07/2017] [Indexed: 06/06/2023]
Abstract
The present study reports metal and arsenic contamination in sediments, as well as element accumulation and partitioning in the polychaete Diopatra neapolitana in the Ria de Aveiro lagoon (Portugal). The polychaetes biochemical performance and tissue regenerative capacity were also evaluated. The concentration of elements in sediments showed an increase of contamination among areas (areas A-G), but higher bioaccumulation was observed in organisms from a less contaminated area (area C, BAF>1). This study evidenced that individuals with higher elements bioaccumulation presented higher LPO and lower GSH/GSSG and also exhibited lower capacity for body regeneration. Polychaetes biotransformation capacity as well as antioxidant defense mechanisms were not sufficiently efficient to withstand the excess of ROS leading to increased LPO when organisms presented higher bioaccumulation levels. Additionally, an increase of methalotionines was also observed in individuals with higher bioaccumulation of metals and As, suggesting an induction of detoxification processes.
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Affiliation(s)
- Adília Pires
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
| | - Cátia Velez
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Etelvina Figueira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | | | - Rosa Freitas
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
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12
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Biochemical responses induced by co-exposition to arsenic and titanium dioxide nanoparticles in the estuarine polychaete Laeonereis acuta. Toxicology 2017; 376:51-58. [DOI: 10.1016/j.tox.2016.05.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/11/2016] [Accepted: 05/12/2016] [Indexed: 11/22/2022]
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13
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de Melo Tarouco F, de Godoi FGA, Velasques RR, da Silveira Guerreiro A, Geihs MA, da Rosa CE. Effects of the herbicide Roundup on the polychaeta Laeonereis acuta: Cholinesterases and oxidative stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:259-266. [PMID: 27750093 DOI: 10.1016/j.ecoenv.2016.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 10/05/2016] [Accepted: 10/07/2016] [Indexed: 05/20/2023]
Abstract
Glyphosate based herbicides, including Roundup, are widely employed in agriculture and urban spaces. The objective of this study was to evaluate the toxicological effects of Roundup on the estuarine polychaeta Laeonereis acuta. Biomarkers of oxidative stress as well as acetylcholinesterase and propionilcholinesterase activities were analyzed. Firstly, the LC50 96h for L. acuta was established (8.19mg/L). After, the animals were exposed to two Roundup concentrations: 3.25mg/L (non-observed effect concentration - NOEC) and 5.35mg/L (LC10) for 24h and 96h. Oxygen consumption was determined and the animals were divided into three body regions (anterior, middle and posterior) for biochemical analysis. An inhibition of both cholinesterase isoforms were observed in animals exposed to both Roundup concentrations after 96h. A significant reactive oxygen species (ROS) reduction was observed in the posterior region of animals in both periods, while antioxidant capacity against peroxyl radicals (ACAP) was reduced in the posterior region of animals exposed for 24h. Considering the antioxidant defense system, both GSH levels and enzyme activities (catalase, superoxide dismutase, glutathione s-transferase, glutathione peroxidase and glutamate cysteine ligase) were not altered after exposure. Lipid peroxidation was reduced in all analyzed body regions in both Roundup concentrations after 24h. Animals exposed to the highest concentration presented a reduction in lipid peroxidation in the anterior region after 96h, while animals exposed to the lowest concentration presented a reduction in the middle region. Overall results indicate that Roundup exposure presents toxicity to L. acuta, causing a disruption in ROS and ACAP levels as well as affects the cholinergic system of this invertebrate species.
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Affiliation(s)
- Fábio de Melo Tarouco
- Universidade Federal do Rio Grande - FURG, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ciências Fisiológicas, Brazil.
| | | | - Robson Rabelo Velasques
- Universidade Federal do Rio Grande - FURG, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ciências Fisiológicas, Brazil.
| | - Amanda da Silveira Guerreiro
- Universidade Federal do Rio Grande - FURG, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ciências Fisiológicas, Brazil.
| | | | - Carlos Eduardo da Rosa
- Universidade Federal do Rio Grande - FURG, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ciências Fisiológicas, Brazil.
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14
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Hariharan G, Purvaja R, Robin RS, Ramesh R. Evaluation of the multiple biomarkers on identification of the vulnerable coastal pollution hotspots. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:23281-23290. [PMID: 27638791 DOI: 10.1007/s11356-016-7548-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 08/29/2016] [Indexed: 06/06/2023]
Abstract
This paper presents multiple biomarkers on metal accumulation and its impacts along the Chennai to Puducherry, southeast coast of India using bivalves as bioindicators. In this regard, water samples and Perna viridis were collected from three stations and the accumulation of metals and its biological impacts were assessed. Among the three sampling stations, the maximum accumulation was noticed in Ennore (S1) than the Puducherry (S3) followed by Kovalam (S2). Mean accumulation pattern of metals in Perna viridis was found to be in the following order Zn > Cu > Ni > Cr > Pb > Cd, which were in close match with the metal concentration in seawater at respective site. The ambient metal concentration and behavior of multiple biomarkers were positively correlated indicating that the uptake of metals might induce biological changes, particularly in the internal organs, thus significantly affecting health of the aquatic organisms. P. viridis provides reliable information concerning the adverse effects and reflects the integrated effects of all contaminants. Thus, study confirmed that Ennore (S1) coast is highly vulnerable for significant pollution, in terms of metal toxicity in the study area. Overall investigation revealed that metal enrichment was observed close to the major urban areas in the S1 and S2 which were associated with industrialized areas. The assessment of multiple biomarkers on metal accumulation was the first step in determining the trophic transfer factors on marine foot web, which can be evaluated in the future based on this study.
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Affiliation(s)
- G Hariharan
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai, Tamil Nadu, 600 025, India.
| | - R Purvaja
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai, Tamil Nadu, 600 025, India
| | - R S Robin
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai, Tamil Nadu, 600 025, India
| | - R Ramesh
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai, Tamil Nadu, 600 025, India
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15
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Moreira A, Figueira E, Soares AMVM, Freitas R. Salinity influences the biochemical response of Crassostrea angulata to Arsenic. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 214:756-766. [PMID: 27149153 DOI: 10.1016/j.envpol.2016.04.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/05/2016] [Accepted: 04/10/2016] [Indexed: 06/05/2023]
Abstract
The increasing rate of occurrence and persistence of climatic events causing salinity shifts, in combination with contamination, may further challenge organisms response to environmental stress. Hence, we studied the effects of different salinity levels (10, 20, 30 and 40) on the response of the oyster Crassostrea angulata to Arsenic (As) exposure (4 mg L(-1)). Total As, Na(+) and K(+) concentrations in oyster tissues were determined. Biochemical analysis were performed to assess osmotic regulation (CA), metabolism (ETS), enzymatic (SOD, CAT and GSTs) and non-enzymatic (GSH/GSSG and LPO) markers of oxidative stress. Results obtained showed significantly higher metabolic activities in oysters maintained in low salinity (10) exposure, coupled with higher As accumulation, as well as higher SOD and CAT activities, compared to higher salinities (30 and 40). GSTs activity and LPO levels were higher in oysters exposed to As at salinities 20, 30 and 40, compared to the same conditions without As. From our findings we concluded that the response of C. angulata to As is influenced by salinity. At the lowest salinity (10) oysters accumulated higher As concentrations, here attributed to higher metabolic rate involved in physiological osmoregulation, also stimulating antioxidant related enzymes activity (SOD and CAT) and thus preventing increased LPO (higher ETS activity also observed without As). On the contrary, at salinities 30 and 40 with As, antioxidant SOD and CAT were inhibited, enabling for LPO generation. Given our results, the effects of As on the oysters antioxidant capacity appears to be more deleterious under higher salinities (20, 30 and 40), comparing to salinity 10. The differentiated responses demonstrated in the present study in C. angulata oysters exposed to As under different salinities, bring new insights on the mechanisms of environmental adaptability of this species, namely to salinity shifts, and the interactions between such alterations and As exposure.
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Affiliation(s)
- Anthony Moreira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Etelvina Figueira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | | | - Rosa Freitas
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
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16
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Wang Z, Cui Z. Accumulation, biotransformation, and multi-biomarker responses after exposure to arsenic species in the earthworm Eisenia fetida. Toxicol Res (Camb) 2016; 5:500-510. [PMID: 30090364 PMCID: PMC6062360 DOI: 10.1039/c5tx00396b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 12/25/2015] [Indexed: 01/11/2023] Open
Abstract
Earthworms (Eisenia fetida) were exposed to OECD soils contaminated with arsenite (29.3 mg kg-1), arsenate (35.2 mg kg-1), monomethylarsonate (342.5 mg kg-1) and dimethylarsinate (373.0 mg kg-1) for 64 days. The exposure concentration for the four arsenic species was set at one-tenth of 14 d-LC50 in order to compare their toxicity. Eight biomarkers including superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, reduced glutathione, lipid peroxidation and metallothioneins were analyzed in the organisms. A multi-biomarker approach, the integrated biomarker response (IBR) index, was adopted to summarize the multi-biomarker responses to a single value, reflecting the integrated stress of different arsenic species on earthworms. Furthermore, total arsenic and arsenic speciation were analyzed in earthworm tissue to evaluate the relationship between arsenic accumulation and biomarker responses at the molecular and subcellular levels and to observe the role of arsenic biotransformation in earthworms. The results showed that the toxicity of the four arsenic species was ranked as: arsenite > arsenate > monomethylarsonate and dimethylarsinate. Although organic arsenics showed a low degree of biotoxicity, they could be turned into highly toxic inorganic arsenics under the effect of demethylation, which caused a toxic effect on organisms. The biomarker responses indicated that a sub-lethal dose of both arsenite and arsenate could trigger the response of the antioxidant defense system and cause oxidative damage when the protective capacity of the system was exhausted. Arsenic in earthworms could be detoxified during the process of biotransformation, where inorganic arsenics were converted into organic arsenics, which would then be excreted out. Based on these results, it was proved that different arsenic species showed different degrees of toxicity. Therefore, arsenic species should be differentiated in order to obtain accurate results in quality/risk assessment programs.
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Affiliation(s)
- Zhifeng Wang
- School of Environmental Science and Engineering , Shandong University , No. 27 Shanda South Road , Jinan 250100 , P. R. China . ; ; Tel: +86 531 88361176
| | - Zhaojie Cui
- School of Environmental Science and Engineering , Shandong University , No. 27 Shanda South Road , Jinan 250100 , P. R. China . ; ; Tel: +86 531 88361176
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17
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Freitas R, Salamanca L, Velez C, Wrona FJ, Soares AMVM, Figueira E. Multiple stressors in estuarine waters: Effects of arsenic and salinity on Ruditapes philippinarum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:1106-1114. [PMID: 26473712 DOI: 10.1016/j.scitotenv.2015.09.149] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 09/26/2015] [Accepted: 09/28/2015] [Indexed: 06/05/2023]
Abstract
Marine organisms are constantly exposed to multiple stressors creating a range of associated environmental and ecotoxicological risks. Several stressors have been identified as key drivers of environmental change that may significantly influence marine near-shore systems. These include increased frequency and duration of extreme rainy events and drought periods, arising from climate change, and the constant discharge of contaminants into aquatic systems. A growing body of evidence demonstrates that climate change can have direct and indirect impacts on marine organisms although the combined effects with other stressors, namely with metals and metalloids, have received very little attention to date. The present study evaluated the biochemical alterations induced in the clam Ruditapes philippinarum, also known as Manila clam, when simultaneously exposed (96 h) to different arsenic concentrations (0, 4 and 17 mg/L) and a range of salinities (14, 21, 28, 35 and 42 g/L). Results obtained revealed that, when acting alone, both stressors induced oxidative stress in clams, with higher LPO levels and lower GSTs activity induced by As contamination, and a stronger inhibition of the antioxidant defenses induced by salinity increase. Furthermore, when exposed to the combination of both stressors, clams experienced stronger biochemical alterations, presenting higher LPO increases and greater decreases of antioxidant enzymes, especially noticed at higher salinities. The present findings may indicate that climate change, including predicted drought periods that will increase salinities in aquatic systems, will seriously affect the clam R. philippinarum, especially those inhabiting contaminated ecosystems.
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Affiliation(s)
- Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | | | - Cátia Velez
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Frederick J Wrona
- Department of Geography, University of Victoria, National Water Research Institute, STN CSC, Victoria, BC, Canada
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Etelvina Figueira
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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18
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Fan W, Ren J, Li X, Wei C, Xue F, Zhang N. Bioaccumulation and oxidative stress in Daphnia magna exposed to arsenite and arsenate. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2629-2635. [PMID: 26084717 DOI: 10.1002/etc.3119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/17/2015] [Accepted: 06/11/2015] [Indexed: 06/04/2023]
Abstract
Arsenic pollution and its toxicity to aquatic organisms have attracted worldwide attention. The bioavailability and toxicity of arsenic are highly related to its speciation. The present study investigated the differences in bioaccumulation and oxidative stress responses in an aquatic organism, Daphnia magna, induced by 2 inorganic arsenic species (As(III) and As(V)). The bioaccumulation of arsenic, Na(+) /K(+) -adenosine triphosphatase (ATPase) activity, reactive oxygen species (ROS) content, total superoxide dismutase (SOD) activity, total antioxidative capability, and malondialdehyde content in D. magna were determined after exposure to 500 µg/L of arsenite and arsenate for 48 h. The results showed that the oxidative stress and antioxidative process in D. magna exposed to arsenite and arsenate could be divided into 3 phases, which were antioxidative response, oxidation inhibition, and antioxidative recovery. In addition, differences in bioaccumulation, Na(+) /K(+) -ATPase activity, and total SOD activity were also found in D. magna exposed to As(III) and As(V). These differences might have been the result of the high affinity of As(III) with sulfhydryl groups in enzymes and the structural similarity of As(V) to phosphate. Therefore, arsenate could be taken up by organisms through phosphate transporters, could substitute for phosphate in biochemical reactions, and could lead to a change in the bioaccumulation of arsenic and activity of enzymes. These characteristics were the possible reasons for the different toxicity mechanisms in the oxidative stress process of arsenite and arsenate.
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Affiliation(s)
- Wenhong Fan
- School of Chemistry and Environment, Beihang University, Beijing, People's Republic of China
| | - Jinqian Ren
- School of Chemistry and Environment, Beihang University, Beijing, People's Republic of China
| | - Xiaomin Li
- School of Chemistry and Environment, Beihang University, Beijing, People's Republic of China
| | - Chaoyang Wei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Feng Xue
- School of Chemistry and Environment, Beihang University, Beijing, People's Republic of China
| | - Nan Zhang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
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19
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Freitas R, Pires A, Velez C, Almeida Â, Wrona FJ, Soares AMVM, Figueira E. The effects of salinity changes on the Polychaete Diopatra neapolitana: Impacts on regenerative capacity and biochemical markers. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 163:167-176. [PMID: 25911382 DOI: 10.1016/j.aquatox.2015.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/31/2015] [Accepted: 04/04/2015] [Indexed: 06/04/2023]
Abstract
Polychaetes have been identified by several authors as a group of marine invertebrates that respond rapidly to anthropogenic stressors. However, studies investigating alterations in Polychaetes affected by climate changes are scarce. Thus, the present study aimed to assess the impact of salinity changes (14, 21, 28, 35, 42g/L) on the physiological and biochemical performance of the Polychaete Diopatra neapolitana, evaluating the species regenerative ability and biochemical alterations. The results obtained demonstrated that organisms exposed to extreme salinity conditions (14, 21 and 42g/L) presented higher mortality rates, needed more days to completely regenerate the missing body region and also regenerated less chaetigers, when compared to organisms exposed to salinities 28 and 35g/L. The present study further demonstrated that D. neapolitana presented significantly lower glycogen and protein content at salinities 21 and 42g/L, which can be explained by higher energy expenditure in the physiological and biochemical processes. A marked impairment of the glutathione redox status was also recorded at salinities 21 and 42g/L. Increased antioxidant enzyme activities were observed at salinity 21g/L while LPO levels were increased at salinity 42g/L. Overall the present study demonstrated that the regenerative capacity of D. neapolitana can be used as a tool to assess environmental changes, namely salinity shifts. Moreover, stress related biomarkers revealed to be useful to evaluate the alterations in Polychaetes due to salinity changes. D. neapolitana revealed to be a good bioindicator to salinity alterations.
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Affiliation(s)
- Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Adília Pires
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Cátia Velez
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Ângela Almeida
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Frederick J Wrona
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal; Department of Geography, University of Victoria, 8500 Finnerty Road, David Turpin Building, Victoria, BC V8P 5C2, Canada
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Etelvina Figueira
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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20
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Zhang W, Huang L, Wang WX. Biotransformation and detoxification of inorganic arsenic in a marine juvenile fish Terapon jarbua after waterborne and dietborne exposure. JOURNAL OF HAZARDOUS MATERIALS 2012; 221-222:162-9. [PMID: 22542778 DOI: 10.1016/j.jhazmat.2012.04.027] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/21/2012] [Accepted: 04/11/2012] [Indexed: 05/21/2023]
Abstract
Arsenic (As) is a major hazardous metalloid in many aquatic environments. This study quantified the biotransformation of two inorganic As species [As(III) and As(V)] in a marine juvenile grunt Terapon jarbua following waterborne and dietborne exposures for 10d. The fish were fed As contaminated artificial diets at nominal concentrations of 50, 150, and 500μg As(III) and As(V)/g (dry weight), and their transformation and growth responses were compared to those exposed to 100μg/L waterborne As(III) and As(V). Within the 10d exposure period, waterborne and dietborne inorganic As exposure had no significant effect on the fish growth performance. The bioaccumulation of As was very low and not proportional to the inorganic As exposure concentration. We demonstrated that both inorganic As(III) and As(V) in the dietborne and waterborne phases were rapidly biotransformed to the less toxic arsenobetaine (AsB, 89-97%). After exposure to inorganic As, T. jarbua developed correspondingly detoxified strategies, such as the reduction of As(V) to As(III) followed by methylation to less toxic organic forms, as well as the synthesis of metal-binding proteins such as metallothionein-like proteins. This study elucidated that As(III) and As(V) had little potential toxicity on marine fish.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
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