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Marigómez I, Olivares M, Zaldibar B, Benito D, Soto M, Blanco-Rayón E, Lekube X, Izagirre U, Aguirre-Rubí J. Biomarker responsiveness in Norwegian Sea mussels, Mytilus edulis, exposed at low temperatures to aqueous fractions of crude oil alone and combined with dispersant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174186. [PMID: 38909801 DOI: 10.1016/j.scitotenv.2024.174186] [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: 05/23/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
Biological effects of aqueous fractions of a crude oil, alone or in combination with dispersant, were investigated in mussels, Mytilus edulis, exposed at three temperatures (5, 10 and 15 °C). Polycyclic aromatic hydrocarbons (PAHs) tissue concentrations were determined, together with genotoxicity, oxidative stress and general stress biomarkers and the Integrated Biological Response (IBR) index. The bioaccumulation of individual PAHs varied depending on the exposure temperature, with relevant bioaccumulation of phenantrene and fluoranthene at 5 °C and heavier (e.g. 5-rings) PAHs at 15 °C. The values and response profiles of each particular biomarker varied with exposure time, concentration of the oil aqueous fraction and dispersant addition, as well as with exposure temperature. Indeed, PAH bioaccumulation and biomarker responsiveness exhibited specific recognizable patterns in mussels exposed at low temperatures. Thus, genotoxicity was recorded early and transient at 5 °C and delayed but unremitting at 10-15 °C. Catalase activity presented a temperature-dependent response profile similar to the genotoxicity biomarker; however, glutathione-S-transferase responsiveness was more intricate. Lysosomal membrane stability in digestive cells decreased more markedly at 5 °C than at higher temperatures and the histological appearance of the digestive gland tissue was temperature-specific, which was interpreted as the combined effects of PAH toxicity and cold stress. It can be concluded that the profile and level of the biological effects are definitely different at low temperatures naturally occurring in the Arctic/Subarctic region (e.g. 5 °C) than at higher temperatures closer to the thermal optimum of this species (10-15 °C).
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Affiliation(s)
- Ionan Marigómez
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain.
| | - Maitane Olivares
- IBeA Research Group, Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Beñat Zaldibar
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Denis Benito
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Manu Soto
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Esther Blanco-Rayón
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Xabier Lekube
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Urtzi Izagirre
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
| | - Javier Aguirre-Rubí
- BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa-Bizkaia, Basque Country, Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia-Bizkaia, Basque Country, Spain
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Aguilar L, Moreno-Ortiz G, Caamal-Monsreal C, Rosas C, Noreña-Barroso E, Gómez-Maldonado MC, Rodríguez-Fuentes G. Effects of Phenanthrene Exposure on the B-esterases Activities of Octopus maya (Voss and Solís Ramírez, 1996) Embryos. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 110:63. [PMID: 36917264 PMCID: PMC10014768 DOI: 10.1007/s00128-023-03706-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
No ecotoxicological information exists on phenanthrene (Phe) exposure in cephalopods, animals of commercial and ecological importance. This study investigated the effect of Phe on two B-esterases, Acetylcholinesterase (AChE) and Carboxylesterases (CbE), in Octopus maya embryos. Octopus embryos were exposed to different treatments: control (seawater), solvent control (seawater and DMSO 0.01%), 10 and 100 µg/L of Phe. AChE and CbE activities were measured at different developmental stages (blastula, organogenesis, and growth). B-esterase activities increased in control and solvent control as the embryos developed, showing no statistically significant differences between them. On the other hand, the embryos exposed to Phe had significant differences from controls, and between the high and low concentrations. Our results indicate that B-esterases are sensitive biomarkers of exposure to Phe in O. maya. Still, complementary studies are needed to unravel the toxicodynamics of Phe and the implications of the found inhibitory effect in hatched organisms.
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Affiliation(s)
- Letícia Aguilar
- Unidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - Gissela Moreno-Ortiz
- Unidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - Claudia Caamal-Monsreal
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - Carlos Rosas
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - Elsa Noreña-Barroso
- Unidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - María Concepción Gómez-Maldonado
- Unidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico
| | - Gabriela Rodríguez-Fuentes
- Unidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo S/N, Sisal, Yucatán, Mexico.
- Unidad de Química en Sisal, Facultad de Química, UNAM, Av. Colón # 503 F X 62 y Reforma Colonia Centro, 97000, Mérida, Yucatán, Mexico.
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Renegar DA, Schuler PA, Knap AH, Dodge RE. TRopical Oil Pollution Investigations in Coastal Systems [TROPICS]: A synopsis of impacts and recovery. MARINE POLLUTION BULLETIN 2022; 181:113880. [PMID: 35843160 DOI: 10.1016/j.marpolbul.2022.113880] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
The TRopical Oil Pollution Investigations in Coastal Systems (TROPICS) experiment, conducted on the Caribbean coast of Panama, has become one of the most comprehensive field experiments examining the long-term impacts of oil and dispersed oil exposures in nearshore tropical marine environments. From the initial experiment through more than three decades of study and data collection visits, the intertidal and subtidal communities have exhibited significantly different impact and recovery regimes, depending on whether the sites were exposed to crude oil only or crude oil treated with a chemical dispersant. This review provides a synopsis of the original experiment and a cumulative summary of the results and observations, illustrating the environmental and ecosystem trade-offs of chemical dispersant use in mangrove, seagrass, and coral reef environments.
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Affiliation(s)
- D Abigail Renegar
- Nova Southeastern University, Halmos College of Arts and Sciences, 8000 North Ocean Drive, Dania, FL, USA.
| | - Paul A Schuler
- Oil Spill Response Limited, 2381 Stirling Road, Fort Lauderdale, FL 33312, USA
| | - Anthony H Knap
- Texas A&M University, Geochemical and Environmental Research Group, College Station, TX 77845, USA
| | - Richard E Dodge
- Nova Southeastern University, Halmos College of Arts and Sciences, 8000 North Ocean Drive, Dania, FL, USA
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Guerreiro ADS, Guterres BDV, Costa PG, Bianchini A, Botelho SSDC, Sandrini JZ. Combined physiological and behavioral approaches as tools to evaluate environmental risk assessment of the water accommodated-fraction of diesel oil. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 249:106230. [PMID: 35797851 DOI: 10.1016/j.aquatox.2022.106230] [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: 05/06/2021] [Revised: 05/14/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
There is an increasing concern related to the toxic effects of the soluble portion of diesel oil on aquatic ecosystems and the organisms living in them. In this context, the aim of this study was to analyze the effects of diesel water accommodated-fraction (WAF) on behavioral and biochemical responses of mussels Perna perna. Animals were exposed to 5 and 20% of WAF for 96 h. Prior to the beginning of the experiments, Hall effect sensors and magnets were attached to the valves of the mussels. Valve gaping behavior was continuously recorded for 12 h of exposure and tissues (gills and digestive gland) were separated after 96 h of exposure. Overall, both behavior and biochemical biomarkers were altered due to WAF exposure. Animals exposed to WAF reduced the average amplitude of the valves and the fraction of time opened, and presented greater transition frequency, demonstrating avoidance behavior over the 12 h period. Furthermore, the biochemical biomarkers (GSH, GST, SOD and CAT) were altered following the 96 h of exposure to WAF. Considering the results presented, this study demonstrates the toxic potential of WAF in both shorter and longer exposure periods.
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Affiliation(s)
- Amanda da Silveira Guerreiro
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil.
| | - Bruna de Vargas Guterres
- Programa de Pós-Graduação em Engenharia de Computação. Centro de Ciências Computacionais, C3. Universidade Federal do Rio Grande - FURG, Rio Grande, RS 96203-900, Brazil
| | - Patricia Gomes Costa
- Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, Rio Grande, RS 96203-900, Brazil
| | - Adalto Bianchini
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
| | - Silvia Silva da Costa Botelho
- Programa de Pós-Graduação em Engenharia de Computação. Centro de Ciências Computacionais, C3. Universidade Federal do Rio Grande - FURG, Rio Grande, RS 96203-900, Brazil
| | - Juliana Zomer Sandrini
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
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Moncaleano-Niño AM, Gómez-Cubillos MC, Luna-Acosta A, Villamil L, Casseres-Ruiz S, Ahrens MJ. Monitoring metallothionein-like protein concentrations and cholinesterase activity in tropical cup oysters as biomarkers of exposure to metals and pesticides in the southern Caribbean, Colombia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:25157-25183. [PMID: 34837617 DOI: 10.1007/s11356-021-17644-7] [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: 06/12/2021] [Accepted: 11/16/2021] [Indexed: 06/13/2023]
Abstract
Metallothionein-like protein concentrations (MT) and three functionally defined fractions of cholinesterase activity (ChE) were quantified in gill and digestive gland homogenates of tropical cup oysters from 5 nearshore locations in the Colombian Caribbean and correlated with sediment and tissue metal (9 metals) and pesticide (22 organophosphates, OPs, and 20 organochlorines-OCPs), as well as water physical-chemical parameters (salinity, pH, temperature, and dissolved oxygen). Tissue and sediment pesticide concentrations were below detection limits in all samples, whereas sediment and tissue metal concentrations exceeded environmental thresholds at several locations. Tissue MT and ChE biomarkers varied by a factor of 5-6 between locations. Inhibition of cholinesterase activity was negligible for all 5 sites, despite spatial-temporal variation in ChE activity, consistent with below-detection OP concentrations. Tissue MT and ChE biomarkers correlated with tissue and metal sediment concentrations, yet, statistically significant covariance between biomarkers and water chemistry parameters was also observed, indicating that both, metal concentrations and physical-chemical variables, are likely to be responsible for generating the observed spatial-temporal variations in biomarker patterns.
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Affiliation(s)
- Angela M Moncaleano-Niño
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Maria Camila Gómez-Cubillos
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
- Department of Biology, Ichthyology Laboratory, Ecology and Systematics Unit (UNESIS), Pontifical Javeriana University, Transversal 4 No. 42-00, Bogotá, Colombia
| | - Andrea Luna-Acosta
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
- Department of Ecology and Territory, Faculty of Environmental and Rural Studies, Pontifical Javeriana University, Transversal 4 No. 42-00, Bogotá, Colombia
| | - Luisa Villamil
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
- Faculty of Engineering, PhD in Biosciences, La Sabana University, Campus "Puente del Común," Km. 7, Autopista Norte de Bogotá, Chía, Colombia
| | - Samuel Casseres-Ruiz
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Michael J Ahrens
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia.
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Sun M, Hu F, Wang T, Zhang T, Jing Y, Guo W, Chen Q, Liu G. Effect of temperature on the toxicokinetics and gene expression of the pacific cupped oyster Crassostrea gigas exposed to cadmium. Comp Biochem Physiol C Toxicol Pharmacol 2022; 253:109252. [PMID: 34968742 DOI: 10.1016/j.cbpc.2021.109252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 01/28/2023]
Abstract
In this study, we investigated the influence of temperature on the bioaccumulation and depuration of Crassostrea gigas exposed to Cd associated with its molecular responses. Oysters were acclimatized to different temperatures (10 °C, 15 °C, 20 °C, 25 °C, and 30 °C) for 14 d and then exposed to 10 μg/L Cd for 28 d, followed by a depuration period of 35 d. Oysters were sampled for chemical analysis by inductively coupled plasma mass spectrometry (ICP-MS) and for mRNA quantification by qPCR. In the digestive gland, gill, and mantle, the cadmium concentration at 10 °C was significantly lower than that at 25 °C and 30 °C in both the whole experiments. The use of a two-compartment model showed that the uptake rate k1 in the above three tissues increased with increasing temperatures ranging from 15 to 25 °C. The fastest elimination rates and shortest half-lives were observed at 15-25 °C. The induction of metallothionein (MT) only occurred in the digestive gland at 15 °C and 20 °C at the end of the accumulation phase. In the mantle and gills, the expression of P-glycoprotein (P-gp) was significantly induced at the end of the accumulation phase and significantly inhibited at the end of the depuration phase. In the digestive gland, the expression of P-gp was induced at the end of both the accumulation and depuration phases. Heat shock protein (hsp70) expression exhibited an overall increasing trend throughout the experiment.
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Affiliation(s)
- Ming Sun
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Fanguang Hu
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Tianming Wang
- Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang 316022, PR China
| | - Tianwen Zhang
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Yuanyuan Jing
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Wen Guo
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Qun Chen
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China
| | - Guangbin Liu
- Marine Science Institute of Shandong Province, Qingdao 266104, PR China.
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Bio S, Nunes B. Twists and turns of an oyster's life: effects of different depuration periods on physiological biochemical functions of oysters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29601-29614. [PMID: 33559825 DOI: 10.1007/s11356-021-12683-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Aquaculture activities are often established in the vicinity of highly populated, potentially contaminated areas. Animals cultured at such locations, namely bivalves, are frequently used as test organisms in ecotoxicological testing. In this case, a period of depuration is required to allow the normalization of physiological processes, which are likely to be altered after exposure to a multiplicity of waterborne contaminants occurring in the wild. One of the most important species in modern marine aquaculture is the oyster species Crassostrea gigas. The aim of this study was to assess if the current depuration time frame of 24 h (adopted by most aquaculture facilities), is long enough to permit oysters to revert potential toxic effects exerted by environmental contaminants, allowing their use in laboratory-based ecotoxicological studies. The selected approach involved the monitoring of biochemical (antioxidant defence, oxidative damage, phase II metabolism, and neurological homeostasis) and physiological (condition index) parameters, along a period of 42 days. The obtained results showed that a period of 24 h does not revert any of the potential toxic effects caused by environmental contaminants to which animals may have been previously subjected; even a period of 42 days was not long enough for the oysters to completely normalize the levels of their antioxidant defences, namely total GPx activity, which increased over time. Lipid peroxidation was also increased during the depuration period, and the activity of the metabolic isoenzymes GSTs was significantly decreased. Furthermore, AChE activity measured in the adductor muscle of oysters was increased over time. These assumptions suggest that a period of depuration longer than 24 h is mandatory to obtain adequate test organisms of this oyster species, to be used for ecotoxicological testing purposes.
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Affiliation(s)
- Sofia Bio
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar (CESAM), Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
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Carducci F, Biscotti MA, Trucchi E, Giuliani ME, Gorbi S, Coluccelli A, Barucca M, Canapa A. Omics approaches for conservation biology research on the bivalve Chamelea gallina. Sci Rep 2020; 10:19177. [PMID: 33154500 PMCID: PMC7645701 DOI: 10.1038/s41598-020-75984-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/30/2020] [Indexed: 12/27/2022] Open
Abstract
The striped venus (Chamelea gallina) is an important economic resource in the Mediterranean Basin; this species has exhibited a strong quantitative decline in the Adriatic Sea. The aim of this work was to provide a comprehensive view of the biological status of C. gallina to elucidate the bioecological characteristics and genetic diversity of wild populations. To the best of our knowledge, this investigation is the first to perform a multidisciplinary study on C. gallina based on two omics approaches integrated with histological, ecotoxicological, and chemical analyses and with the assessment of environmental parameters. The results obtained through RNA sequencing indicated that the striped venus has a notable ability to adapt to different environmental conditions. Moreover, the stock reduction exhibited by this species in the last 2 decades seems not to have negatively affected its genetic diversity. Indeed, the high level of genetic diversity that emerged from our ddRAD dataset analyses is ascribable to the high larval dispersal rate, which might have played a “compensatory role” on local fluctuations, conferring to this species a good adaptive potential to face the environmental perturbations. These findings may facilitate the efforts of conservation biologists to adopt ad hoc management plans for this fishery resource.
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Affiliation(s)
- Federica Carducci
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Maria Assunta Biscotti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Emiliano Trucchi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Maria Elisa Giuliani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Stefania Gorbi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Alessandro Coluccelli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Barucca
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Adriana Canapa
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy.
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Zhou Y, Zhao Y, Xu R, Pan L. Study on the AhR signaling pathway and phase II detoxification metabolic enzymes isoforms in scallop Chlamys farreri exposed to single and mixtures of PAHs. ENVIRONMENTAL RESEARCH 2020; 190:109980. [PMID: 32800894 DOI: 10.1016/j.envres.2020.109980] [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: 05/04/2020] [Revised: 07/11/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to investigate the detoxification metabolism responses in scallop Chlamys farreri exposed to phenanthrene (PHE), chrysene (CHR), benzo[a]pyrene (B[a]P) and PHE + CHR + B[a]P for 15 days under laboratory conditions. The mRNA expression levels of AhR signaling pathway (AhR, HSP90, XAP2 and ARNT), detoxification system (phase I: CYP1A1 and CYP1B1; phase II: SULTs, UGT and GSTs) and ATP-binding cassette transporters (phase 0: ABCB1 and phase III: ABCC1, ABCG2) in digestive glands of scallops exposed to PHE (0.7, 2.1 μg/L), CHR (0.7, 2.1 μg/L), B[a]P (0.7, 2.1 μg/L), and PHE + CHR + B[a]P (0.7 + 0.7 +0.7, 2.1 + 2.1 + 2.1 μg/L) were detected. In present study, key genes (AhR, HSP90, XAP2 and ARNT) of the AhR signaling pathway can be significantly induced by pollutants, suggesting that the AhR/ARNT signaling pathway plays a role directly or indirectly. AhR, HSP90 and ARNT reached the maximum value on day 6, which can be preliminarily understood as the synchronization of their functions. Besides, the results also indicated that different genes had specific response to different pollution exposure. CYP1B1, GST-2, GST-omega and GST-microsomal could be potional indexes to PHE, ARNT, GST-sigma 2 and GST-3 were sensitive to CHR exposure, HSP90, GST-theta and ABCG2 were considered as potional indexes to BaP while CYP1A1 and UGT were possible to be indexes for monitoring the mix exposure of these three PAHs. These findings in C. farreri suggested that phase II detoxification metabolic enzymes isoforms played an essential role in detoxification mechanisms and mRNA expression levels of specific SULTs, UGTs and GSTs were potentially to be ideal indexes in PAHs pollution research. In summary, this study provides more valuable information for the risk assessments of different rings of PAHs.
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Affiliation(s)
- Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Yanan Zhao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Ruiyi Xu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China.
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10
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Dos Reis IMM, Siebert MN, Zacchi FL, Mattos JJ, Flores-Nunes F, Toledo-Silva GD, Piazza CE, Bícego MC, Taniguchi S, Melo CMRD, Bainy ACD. Differential responses in the biotransformation systems of the oyster Crassostrea gigas (Thunberg, 1789) elicited by pyrene and fluorene: Molecular, biochemical and histological approach - Part II. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 226:105565. [PMID: 32682195 DOI: 10.1016/j.aquatox.2020.105565] [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: 02/20/2020] [Revised: 07/02/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
Pyrene (PYR) and fluorene (FLU) are among the sixteen priority Polycyclic Aromatic Hydrocarbons (PAH) of the United States Environmental Protection Agency and are both frequently detected in contaminated sites. Due to the importance of bivalve mollusks in biomonitoring programs and the scarce information on the biotransformation system in these organisms, the aim of this study was to investigate the effect of PYR and FLU at the transcriptional level and the enzymatic activities of some biotransformation systems in the Pacific oyster Crassostrea gigas, and to evaluate the histological effects in their soft tissues. Oysters C. gigas were exposed for 24 h and 96 h to PYR (0.25 and 0.5 μM) and FLU (0.6 and 1.2 μM). After exposure, transcript levels of cytochrome P450 coding genes (CYP1-like, CYP2-like, CYP2AU2, CYP356A1, CYP17α-like), glutathione S tranferase genes (omega GSTO-like and microsomal, MGST-like) and sulfotransferase gene (SULT-like), and the activity of ethoxyresorufin O-deethylase (EROD), Glutathione S-transferase (GST) and microssomal GST (MGST) were evaluated in gills. Histologic changes were also evaluated after the exposure period. PYR and FLU bioconcentrated in oyster soft tissues. The half-life time of PYR in water was lower than fluorene, which is in accordance to the higher lipophilicity and bioconcentration of the former. EROD activity was below the limit of detection in all oysters exposed for 96 h to PYR and FLU. The reproductive stage of the oysters exposed to PYR was post-spawn. Exposure to PYR caused tubular atrophy in digestive diverticula, but had no effect on transcript levels of biotransformation genes. However, the organisms exposed for 96 h to PYR 0.5 μM showed higher MGST activity, suggesting a protective role against oxidative stress in gills of oysters under higher levels of PYR in the tissues. Increased number of mucous cells in mantle were observed in oysters exposed to the higher FLU concentration, suggesting a defense mechanisms. Oysters exposed for 24 h to FLU 1.2 μM were in the ripe stage of gonadal development and showed higher transcript levels of CYP2AU2, GSTO-like and SULT-like genes, suggesting a role in the FLU biotransformation. In addition, after 96 h of exposure to FLU there was a significant increase of mucous cells in the mantle of oysters but no effect was observed on the EROD, total GST and MGST activities. These results suggest that PAH have different effects on transcript levels of biotransformation genes and enzyme activities, however these differences could also be related to the reproductive stage.
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Affiliation(s)
- Isis Mayna Martins Dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme de Toledo-Silva
- Bioinformatics Laboratory, Cell Biology, Embryology and Genetics Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Cláudio Manoel Rodrigues de Melo
- Laboratory of Marine Mollusks (LMM), Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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11
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Guerreiro ADS, Monteiro JS, Medeiros ID, Sandrini JZ. First evidence of transcriptional modulation by chlorothalonil in mussels Perna perna. CHEMOSPHERE 2020; 255:126947. [PMID: 32388261 DOI: 10.1016/j.chemosphere.2020.126947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Gills are considered a key player in organism defenses against environmental pollutants. Since it is the major site of uptake of waterborne chemicals, the modulation of important cellular defenses is expected in this tissue. Chlorothalonil, a fungicide presented in herbicides and antifouling paints, might be responsible for toxicity in marine biota. In this context, mussels were exposed to 0.1 μgL-1 and 10 μgL-1 of chlorothalonil for 24 h and 96 h. Genes from biotransformation and antioxidant defense pathways were investigated. Overall, we report, for the first time, an increase in the transcripts of the AhR-like, SULT1A1-like, CYP1A2-like, GSTO-like, MGST-like and SOD-like genes in the gills of the brown mussel Perna perna. This up-regulation was observed mostly after 96 h of exposure to chlorothalonil. Those results reinforce the important role of gills in xenobiotic metabolism and suggest the involvement of the mentioned genes in the detoxification of the compound. Throughout biotransformation and antioxidant defenses pathway, mussels exposed to chlorothalonil are activating mechanisms of defense against this contaminant.
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Affiliation(s)
- Amanda da Silveira Guerreiro
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, ICB, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil.
| | - Jhonatas Sirino Monteiro
- Programa de Pós-Graduação em Bioinformática. Instituto de Química, Departamento de Bioquímica. Universidade de São Paulo - USP, 05508-000, São Paulo, SP, Brazil
| | - Igor Dias Medeiros
- Instituto do Mar, IMar, Universidade Federal de São Paulo - UNIFESP, Campus Baixada Santista, 11070-100, Santos, SP, Brazil
| | - Juliana Zomer Sandrini
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, ICB, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil
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12
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Nobre CR, Moreno BB, Alves AV, de Lima Rosa J, da Rosa Franco H, Abessa DMDS, Maranho LA, Choueri RB, Gusso-Choueri PK, Pereira CDS. Effects of Microplastics Associated with Triclosan on the Oyster Crassostrea brasiliana: An Integrated Biomarker Approach. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 79:101-110. [PMID: 32279094 DOI: 10.1007/s00244-020-00729-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Urban waste is a complex mixture of different substances, including microplastics and pharmaceuticals and personal care products. Microplastics have a high affinity for hydrophobic substances. One of these substances is triclosan, a bactericide used in a variety of hygiene products. Therefore, microplastics (MPs) may serve as a vector between triclosan and aquatic organisms. The current study sought to evaluate the effects of the interaction between microplastics and triclosan based on a mechanistic approach in which the oyster Crassostrea brasiliana was used as a model. The organisms were exposed to three conditions: the control, microplastic (MP), and microplastic contaminated with triclosan (MPT). The organisms were exposed for 3 or 7 days. After the exposure time, hemolymph was sampled for performing the neutral red retention time assay and, subsequently, the gills, digestive glands, and adductor muscles were dissected for measuring biomarkers responses (EROD, DBF, GST, GPx, GSH, lipid peroxidation, DNA strand breaks, and AChE). Our results demonstrate combined effects of MPs associated with triclosan on oyster physiology and biochemistry, as well as on lysosomal membrane stability. These results contribute to understanding the effects of contaminants of emerging concern and microplastics on aquatic organisms.
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Affiliation(s)
- Caio Rodrigues Nobre
- Biosciences Institute, São Paulo State University, São Vicente, São Paulo, Brazil
| | - Beatriz Barbosa Moreno
- Department of Marine Sciences, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Aline Vecchio Alves
- Department of Marine Sciences, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Jonas de Lima Rosa
- Department of Ecotoxicology, Santa Cecília University, Santos, São Paulo, Brazil
| | | | | | | | - Rodrigo Brasil Choueri
- Department of Marine Sciences, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Paloma Kachel Gusso-Choueri
- Biosciences Institute, São Paulo State University, São Vicente, São Paulo, Brazil
- Department of Ecotoxicology, Santa Cecília University, Santos, São Paulo, Brazil
| | - Camilo Dias Seabra Pereira
- Department of Marine Sciences, Federal University of São Paulo, Santos, São Paulo, Brazil.
- Department of Ecotoxicology, Santa Cecília University, Santos, São Paulo, Brazil.
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13
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Ferreira CP, Lima D, Souza P, Piazza TB, Zacchi FL, Mattos JJ, Jorge MB, Almeida EA, Bianchini A, Taniguchi S, Sasaki ST, Montone RC, Bícego MC, Bainy ACD, Lüchmann KH. Short-term spatiotemporal biomarker changes in oysters transplanted to an anthropized estuary in Southern Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136042. [PMID: 31905594 DOI: 10.1016/j.scitotenv.2019.136042] [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: 09/16/2019] [Revised: 12/02/2019] [Accepted: 12/08/2019] [Indexed: 06/10/2023]
Abstract
Estuarine ecosystems are increasingly being affected by pollution caused by anthropogenic activities. In this study, Crassostrea gasar oysters were transplanted and maintained for seven days at three sites (S1, S2, and S3) in the Laguna Estuarine System (LES)-situated in southern Brazil-that has been exposed to multiple anthropic stresses. On the basis of the concentrations of metal and organic pollutants in oysters, we identified marked spatial variations in pollutant levels, with S3 showing the highest concentration of Ag, Fe, Ni, Zn, and total polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and linear alkylbenzenes (LABs), followed by S2 and S1. Along with the concentrations of pollutants, a set of biomarkers was analyzed. Oysters maintained at S3 showed enhanced protective defenses in gills, as observed by the increased levels of superoxide dismutase (SOD-like) and heat shock protein 90 (HSP90-like) transcripts and catalase (CAT) activity, concomitant with reduced lipid peroxidation (MDA) levels. Decreased antioxidant activities together with increased MDA levels are indicative of the digestive gland being more susceptible to pollutant-induced oxidative damage. Oysters transplanted into LES showed lower levels of cytochrome P450 transcripts (CYP356A1-like and CYP2AU1), and decreased glutathione S-transferase (GST) enzyme activity, suggesting lower biotransformation capacity. By integrating information regarding the concentration of metal and organic pollutants with that of molecular as well as biochemical biomarkers, our study provides novel insights into pollutant exposure and the potential biological impacts of such exposure on estuarine organisms in southern Brazil.
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Affiliation(s)
- Clarissa P Ferreira
- Fishery Engineering and Biological Sciences Department, Santa Catarina State University, Laguna 88790-000, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Patrick Souza
- Fishery Engineering and Biological Sciences Department, Santa Catarina State University, Laguna 88790-000, Brazil
| | - Thiago B Piazza
- Fishery Engineering and Biological Sciences Department, Santa Catarina State University, Laguna 88790-000, Brazil
| | - Flávia L Zacchi
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Jacó J Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Marianna B Jorge
- Oceanography and Limnology Department, Federal University of Maranhão, São Luís 65080-805, Brazil
| | - Eduardo A Almeida
- Department of Natural Sciences, Regional University of Blumenau, Blumenau 89012-170, Brazil
| | - Adalto Bianchini
- Institute of Marine Science - ICMar, University of Rio Grande do Sul, Rio Grande 96203-900, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo 05508-120, Brazil
| | - Silvio T Sasaki
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo 05508-120, Brazil; Institute of Humanities, Arts and Sciences, Formation Center in Environmental Science, Federal University of Southern Bahia, Porto Seguro 45810-000, Brazil
| | - Rosalinda C Montone
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo 05508-120, Brazil
| | - Márcia C Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo 05508-120, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Karim H Lüchmann
- Department of Scientific and Technological Education, Santa Catarina State University, Florianópolis 88035-001, Brazil.
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14
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Guerreiro ADS, Abreu FEL, Fillmann G, Sandrini JZ. Effects of chlorothalonil on the antioxidant defense system of mussels Perna perna. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110119. [PMID: 31891835 DOI: 10.1016/j.ecoenv.2019.110119] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
Chlorothalonil is an effective fungicide used in agriculture and formulations of antifouling paints, which use and possible toxicity has been generating great concern. Thus, the present study investigated the effects of chlorothalonil on the antioxidant defense system (ADS) of the mussel Perna perna. The ADS was evaluated in gills and digestive gland after 24 h and 96 h of exposure to environmental relevant levels of chlorothalonil (0.1 and 10 μg/L). The activity of the enzymes superoxide dismutase (SOD), catalase (CAT), glutamate cysteine-ligase (GCL) and glutathione S-transferase (GST), levels of non-enzymatic defenses, represented by glutathione (GSH), and lipoperoxidation (LPO) and protein carbonyls (PCO) were evaluated. Results indicated that exposure to chlorothalonil is affecting the ADS in both tissues. While the activity of SOD increased and GST and GSH were not altered in gills, they decreased in digestive gland after 24 h of exposure to 10 μg/L of chlorothalonil. The contrasting results indicate that gills and digestive gland presented different patterns of responses after exposure to chlorothalonil. Moreover, a tissue-specific response to chlorothalonil was observed. Gills could be acting as the first line of defense, presenting higher enzymatic levels with minor effects on the parameters analyzed. On the other hand, digestive gland, with lower levels of antioxidant defenses, was the most affect organ by chlorothalonil. It also should be highlighted that the fungicide reduced the glutathione metabolism in the digestive gland, which can lead to an imbalance of the redox state within the cells of animals.
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Affiliation(s)
- Amanda da Silveira Guerreiro
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, ICB, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil.
| | - Fiamma Eugênia Lemos Abreu
- Programa de Pós-Graduação em Oceanologia, Instituto de Oceanografia, IO, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil
| | - Gilberto Fillmann
- Programa de Pós-Graduação em Oceanologia, Instituto de Oceanografia, IO, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil
| | - Juliana Zomer Sandrini
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, ICB, Universidade Federal do Rio Grande - FURG, 96203-900, Rio Grande, RS, Brazil
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15
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Zacchi FL, Dos Reis IMM, Siebert MN, Mattos JJ, Flores-Nunes F, Toledo-Silva GD, Piazza CE, Bícego MC, Taniguchi S, Bainy ACD. Differential responses in the biotransformation systems of the oyster Crassostrea gasar (Adanson, 1757) elicited by pyrene and fluorene: molecular, biochemical and histological approach - Part I. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 216:105318. [PMID: 31590133 DOI: 10.1016/j.aquatox.2019.105318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the main contaminants in aquatic environments. PAHs can affect organisms due to their carcinogenic, mutagenic and/or teratogenic characteristics. Depending on the PAHs, concentration, and period of exposure, biological damage can occur leading to histopathologic alterations. This study aimed to evaluate the molecular, biochemical and histological responses of the oyster Crassostrea gasar exposed to pyrene (0.25 and 0.5 μM) and fluorene (0.6 and 1.2 μM), after exposure for 24 and 96 h. Concentrations of both PAHs were quantified in the water and in oyster tissues. Transcript levels of phase I (CYP3475C1, CYP2-like, CYP2AU1 and CYP356A) and phase II (GSTO-like, MGST-like and SULT-like) biotransformation-related genes and the activities of ethoxyresorufin-O-deethylase (EROD), total and microsomal glutathione S-transferase (GST and MGST) were evaluated in the gills. Also, histological changes and localization of mRNA transcripts CYP2AU1 in gills, mantle, and digestive diverticula were evaluated. Both PAHs accumulated in oyster tissues. Pyrene half-life in water was significantly lower than fluorene. Transcript levels of all genes were higher in oysters exposed to of pyrene 0.5 μM (24 h). Only CYP2AU1 gene was up-regulated by fluorene exposure. EROD and MGST activities were higher in oysters exposed to pyrene. Tubular atrophy in the digestive diverticula and an increased number of mucous cells in the mantle were observed in oysters exposed to pyrene. CYP2AU1 transcripts were observed in different tissues of pyrene-exposed oysters. A significant correlation was observed between tubular atrophy and the CYP2AU1 hybridization signal in oysters exposed to pyrene, suggesting the sensibility of the species to this PAH. These results suggest an important role of biotransformation-related genes and enzymes and tissue alterations associated to pyrene metabolism but not fluorene. In addition, it reinforces the role of CYP2AU1 gene in the biotransformation process of PAHs in the gills of C. gasar.
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Affiliation(s)
- Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Isis Mayna Martins Dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme de Toledo-Silva
- Bioinformatics Laboratory, Cell biology, Embryology and Genetics Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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16
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Ferreira CP, Lima D, Paiva R, Vilke JM, Mattos JJ, Almeida EA, Grott SC, Alves TC, Corrêa JN, Jorge MB, Uczay M, Vogel CIG, Gomes CHAM, Bainy ACD, Lüchmann KH. Metal bioaccumulation, oxidative stress and antioxidant responses in oysters Crassostrea gasar transplanted to an estuary in southern Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:332-344. [PMID: 31176220 DOI: 10.1016/j.scitotenv.2019.05.384] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 05/07/2019] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
The present study assessed the spatial and temporal variations on metal bioaccumulation and biochemical biomarker responses in oysters Crassostrea gasar transplanted to two different sites (S1 and S2) at the Laguna Estuarine System (LES), southern Brazil, over a 45-days period. A multi-biomarker approach was used, including the evaluation of lipid peroxidation (MDA) levels, and antioxidant defense enzymes (CAT, GPx, GR and G6PDH) and phase II biotransformation enzyme (GST) in the gills and digestive gland of oysters in combination with the quantification of Al, Cd, Cu, Pb, Fe, Ni and Zn in both tissues. The exposed oysters bioaccumulated metals, especially Al, Cd and Zn in gills and digestive gland, with most prominent biomarker responses in the gills. Results showed that GPx, GR and G6PDH enzymes offered an increased and coordinated response possibly against metal (Zn, Ni, Cd and Cu) contamination in gills. GST was inversely correlated to Cd levels, being its activity significantly lowered over the 45-d exposure periods at S2. On contrary, in digestive gland GST was slightly positively correlated to Cd, revealing a compensatory mechanism between tissues to protect oysters' cells against oxidative damages, since MDA levels also decreased. CAT also appeared to be involved in the cellular protection against oxidative stress, being increased in gills. However, CAT was negatively correlated to Al levels, which might suggest a possible inhibitory effect of this metal in the gills of C. gasar. Differences between tissues were evident by the Integrative Biomarker Responses version 2 (IBRv2) indexes, which showed different pattern between tissues when studying the sites and exposure periods separately. This study provided evidence for the effectiveness of using a multi-biomarker approach in oyster C. gasar to monitor estuarine metal pollution.
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Affiliation(s)
- Clarissa P Ferreira
- Fishery Engineering Department, Santa Catarina State University, Laguna 88790-000, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Raphaella Paiva
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Juliano M Vilke
- Fishery Engineering Department, Santa Catarina State University, Laguna 88790-000, Brazil
| | - Jacó J Mattos
- Aquaculture Pathology Research Center, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Eduardo A Almeida
- Department of Natural Sciences, Regional University of Blumenau, Blumenau 89012-170, Brazil
| | - Suelen C Grott
- Department of Natural Sciences, Regional University of Blumenau, Blumenau 89012-170, Brazil
| | - Thiago C Alves
- Department of Natural Sciences, Regional University of Blumenau, Blumenau 89012-170, Brazil
| | - Jacyara N Corrêa
- Oceanography and Limnology Department, Federal University of Maranhão, São Luís 65080-805, Brazil
| | - Marianna B Jorge
- Oceanography and Limnology Department, Federal University of Maranhão, São Luís 65080-805, Brazil
| | - Mariana Uczay
- Animal and Food Production Department, Santa Catarina State University, Lages 88520-000, Brazil
| | - Carla I G Vogel
- Animal and Food Production Department, Santa Catarina State University, Lages 88520-000, Brazil
| | - Carlos H A M Gomes
- Laboratory of Marine Mollusks, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Karim H Lüchmann
- Department of Scientific and Technological Education, Santa Catarina State University, Florianópolis 88035-001, Brazil.
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17
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Lima D, Mattos JJ, Piazza RS, Righetti BPH, Monteiro JS, Grott SC, Alves TC, Taniguchi S, Bícego MC, de Almeida EA, Bebianno MJ, Medeiros ID, Bainy ACD. Stress responses in Crassostrea gasar exposed to combined effects of acute pH changes and phenanthrene. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 678:585-593. [PMID: 31078849 DOI: 10.1016/j.scitotenv.2019.04.450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 04/24/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
Ocean acidification is a result of the decrease in the pH of marine water, caused mainly by the increase in CO2 released in the atmosphere and its consequent dissolution in seawater. These changes can be dramatic for marine organisms especially for oysters Crassostrea gasar if other stressors such as xenobiotics are present. The effect of pH changes (6.5, 7.0 and 8.2) was assessed on the transcript levels of biotransformation [cytochromes P450 (CYP2AU1, CYP2-like2) and glutathione S-transferase (GSTΩ-like)] and antioxidant [superoxide dismutase (SOD-like), catalase (CAT-like) and glutathione peroxidase (GPx-like)] genes, as well as enzyme activities [superoxide dismutase, (SOD), catalase (CAT), glutathione reductase (GR), glutathione-S-transferases transferase (GST) and glucose-6-phosphate dehydrogenase (G6PDH)] and lipid peroxidation (MDA) in the gills of Crassostrea gasar exposed to 100 μg·L-1 of phenanthrene (PHE) for 24 and 96 h. Likewise, the PHE burdens was evaluated in whole soft tissues of exposed oysters. The accumulation of PHE in oysters was independent of pH. However, acidification promoted a significant decrease in the transcript levels of some protective genes (24 h exposure: CYP2AU1 and GSTΩ-like; 96 h exposure: CAT-like and GPx-like), which was not observed in the presence of PHE. Activities of GST, CAT and SOD enzymes increased in the oysters exposed to PHE at the control pH (8.2), but at a lower pH values, this activation was suppressed, and no changes were observed in the G6PDH activity and MDA levels. Biotransformation genes showed better responses after 24 h, and antioxidant-coding genes after 96 h, along with the activities of antioxidant enzymes (SOD, CAT), probably because biotransformation of PHE increases the generation of reactive oxygen species. The lack of change in MDA levels suggests that antioxidant modulation efficiently prevented oxidative stress. The effect of pH on the responses to PHE exposure should be taken into account before using these and any other genes as potential molecular biomarkers for PHE exposure.
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Affiliation(s)
- Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó J Mattos
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Rômi S Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Bárbara Pacheco Harrison Righetti
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jhonatas S Monteiro
- Marine Biotechnology Laboratory, Marine Sciences Institute, Federal University of São Paulo (IMar-UNIFESP), Santos 11070-100, Brazil
| | - Suelen Cristina Grott
- Center of Aquatic Toxicology Studies, Department of Natural Sciences, University of Blumenau, Blumenau, SC, Brazil
| | - Thiago Caique Alves
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Eduardo Alves de Almeida
- Center of Aquatic Toxicology Studies, Department of Natural Sciences, University of Blumenau, Blumenau, SC, Brazil
| | - Maria J Bebianno
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil; CIMA, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal
| | - Igor D Medeiros
- Marine Biotechnology Laboratory, Marine Sciences Institute, Federal University of São Paulo (IMar-UNIFESP), Santos 11070-100, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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18
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Weng N, Wang WX. Seasonal fluctuations of metal bioaccumulation and reproductive health of local oyster populations in a large contaminated estuary. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:175-185. [PMID: 30995571 DOI: 10.1016/j.envpol.2019.04.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/17/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Despite of much evidence of trace metal pollution in the Pearl River Estuary (PRE), the seasonal dynamics of metal bioavailability as well as the potential impacts of metal pollution on the local marine organisms in this estuary is poorly understood. In the present study, the accumulation of trace metals and reproductive states of three populations of oyster Crassostrea hongkongensis, a keystone bivalve species in the PRE, were for the first time investigated throughout a one-year field study. Significant temporal fluctuations of metal accumulation were observed in the somatic tissues of oysters, suggesting seasonal variations of metal bioavailability in the PRE. A major feature of the seasonal variations was the increased levels of metal bioaccumulation in the summer season for the contaminated sites nearby the major river inlets. High riverine inputs accompanied by relatively lower salinity in summer may greatly contribute to such variations. Furthermore, oyster populations from two contaminated sites had a poor reproductive condition in comparison with the reference oyster population, as reflected by a significant decrease of gonad-somatic index (GSI) and gonad cover area (GCA), as well as an obvious change of sex ratios. Gonadal metal accumulation of Cu, Zn, Ni, Co and Pb in the contaminated oysters was much higher than that in the relatively uncontaminated oysters. Especially, the concentrations of these metals in the gonad during the breeding season had significantly negative correlations with the gonad condition indexes (GSI and GCA). Our results suggested strong seasonal fluctuations of bioavailability of trace metals in this highly contaminated estuary as well as an adverse effect of metal pollution on the reproduction of local oyster populations.
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Affiliation(s)
- Nanyan Weng
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Shenzhen, and Department of Ocean Science, The Hong Kong University of Science and Technology (HKUST), Clearwater Bay, Kowloon, Hong Kong, PR China
| | - Wen-Xiong Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Shenzhen, and Department of Ocean Science, The Hong Kong University of Science and Technology (HKUST), Clearwater Bay, Kowloon, Hong Kong, PR China.
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19
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Blanco-Rayón E, Guilhermino L, Irazola M, Ivanina AV, Sokolova IM, Izagirre U, Marigómez I. The influence of short-term experimental fasting on biomarker responsiveness in oil WAF exposed mussels. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 206:164-175. [PMID: 30496950 DOI: 10.1016/j.aquatox.2018.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/18/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
Mussels are widely used in toxicological experimentation; however, experimental setups are not standardized yet. Although there is evidence of changes in biomarker values during food digestion and depending on the mussel nutritive status, the mode of feeding differs among toxicological experiments. Typically, mussels are fed with different diets in different long-term experiments, while fasting is the most common approach for short-term studies. Consequently, comparisons among experiments and reliable interpretations of biomarker results are often unfeasible. The present investigation aimed at determining the influence of fasting (against feeding with Isochrysis galbana) on biomarkers and their responsiveness in mussels exposed for 96 h to the water accommodated fraction (WAF) of a heavy fuel oil (0%, 6.25%, 12.5% and 25% WAF in sea water). PAH tissue levels in digestive gland and a battery of biomarkers were compared. WAF exposure led to decrease of cytochrome-C-oxidase activity, modulated glutathione-S-transferase activity, augmented lipid peroxidation, inhibited acetyl cholinesterase (AChE) activity, and led to lysosomal enlargement (VvLYS and S/VLYS) and membrane destabilisation, lipofuscin accumulation, and histopathological alterations (VvBAS, MLR/MET and CTD ratio) in the digestive gland epithelium; and were integrated as IBR/n (biological response index). Overall, no significant changes were recorded in AChE activity, S/VLYS and CTD ratio in any experimental treatment, while all the other biomarkers showed significant changes depending on the fasting/feeding condition, the exposure to WAF and/or their interaction. As a result, the integrated biomarker index IBR/n was higher at increasing WAF exposure levels both in fasted and fed mussels albeit the response was more marked in the latter. The response profiles were qualitatively similar between fasted and fed mussels but quantitatively more pronounced in fed mussels, especially upon exposure to the highest concentration (25% WAF). Therefore, it is highly recommended that mussels are also supplied with food during short-term, like during long-term toxicological experiments. This practice would avoid the interference of fasting with biological responses elicited by the tested chemicals and allow for reliable comparison with data obtained in long-term experiments and monitoring programmes.
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Affiliation(s)
- E Blanco-Rayón
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station, PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - L Guilhermino
- ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology (ECOTOX), Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal & CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), Portugal
| | - M Irazola
- IBeA Research Group, Department of Analytical Chemistry, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station, PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - A V Ivanina
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, United States
| | - I M Sokolova
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, United States; Department of Marine Biology, Institute for Biosciences & Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock 18055, Germany
| | - U Izagirre
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station, PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - I Marigómez
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station, PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain.
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20
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Braga MA, Brauko KM, Vicentini M, Salgado LD, Silva de Assis HC, Dolatto RG, Grassi MT, Sandrini-Neto L, Lana PC. Cytotoxicity and enzymatic biomarkers as early indicators of benthic responses to the soluble-fraction of diesel oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:21-31. [PMID: 30092389 DOI: 10.1016/j.ecoenv.2018.07.084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/12/2018] [Accepted: 07/19/2018] [Indexed: 06/08/2023]
Abstract
Xenobiotics from oil tanker leaks and industrial discharges are amongst the main human impacts to confined coastal areas. We assessed the genotoxic responses to the water-soluble fraction of diesel oil in the polychaete Laeonereis culveri and the bivalve Anomalocardia flexuosa, two widespread benthic species in subtropical estuaries from the Southwestern Atlantic. We hypothesized that the highest responsiveness would be expressed by significantly different biomarkers responses between control and oil-impacted treatments. Responsiveness to diesel oil was investigated using an experimental design with two fixed factors (contaminant percentages and times of exposure). After exposure, we monitored the responses of the oxidative stress enzymes and performed micronuclei tests. Results were congruent for both species. Antioxidant defense of glutathione S-transferase and the induction of micronuclei and nuclear buds, the latter just for the bivalve, were significantly affected by polycyclic aromatic hydrocarbons, with significant increases on the seventh day of exposure and in the higher concentrations, compared to controls groups. We assessed the benefits and drawbacks of using each biomarker in laboratory experiments. Both species are indicators of early, and rapid responses to genotoxic contaminants in subtropical estuarine habitats. We suggest that the micronuclei frequency in A. flexuosa is a simple, fast and cheap test for genotoxicity in oil-impacted areas. Such early biomarkers are needed to develop better protocols for impact assessment and monitoring under real field conditions.
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Affiliation(s)
- Mariana Araki Braga
- Center for Marine Studies, Federal University of Paraná, Pontal do Paraná, PR, Brazil.
| | - Kalina M Brauko
- Nucleus for Marine Studies, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Maiara Vicentini
- Pharmacology Department, Federal University of Paraná, Curitiba, PR, Brazil
| | - Lilian D Salgado
- Pharmacology Department, Federal University of Paraná, Curitiba, PR, Brazil
| | | | | | - Marco T Grassi
- Chemistry Department, Federal University of Paraná, Curitiba, PR, Brazil
| | | | - Paulo C Lana
- Center for Marine Studies, Federal University of Paraná, Pontal do Paraná, PR, Brazil
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21
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Barbosa DB, Mello ADA, Allodi S, de Barros CM. Acute exposure to water-soluble fractions of marine diesel oil: Evaluation of apoptosis and oxidative stress in an ascidian. CHEMOSPHERE 2018; 211:308-315. [PMID: 30077111 DOI: 10.1016/j.chemosphere.2018.07.138] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 07/12/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
To understand the mechanisms involved in organisms' responses to toxicity from oil pollution, we studied the effect of acute exposure (24 h) to the marine water-soluble fraction of diesel oil (WFDO) on the ascidian Styela plicata. We evaluated the mortality and behavior by means of the siphon reflex, and the response of blood cells (hemocytes) contained in the pharynx, by means of the production of nitric oxide (NO) and reactive oxygen species (ROS), in addition to the activity of the antioxidant enzyme catalase (CAT). We also correlated oxidative stress with the activation of apoptotic pathways. No mortality occurred 24 h after the ascidians were exposed to 5% and 10% marine WFDO; however, the siphon reflex, a behavioral test based on the time that the animals took to close their siphons, increased. We also observed an inflammatory response, as estimated by the increase in the number of hemocytes in the pharynx. NO and ROS production and CAT activity were reduced, whereas caspase-3, a signaling molecule involved in apoptosis, was activated. This suggests that in ascidians acutely exposed to oil, another mechanism can occur in addition to oxidative stress. Another possibility is that WFDO may directly interact with cellular macromolecules and activate caspase-3, independently of generating oxidative stress. The results showed that components of diesel oil affected a marine organism, which showed reduced ROS production in the pharynx cells, including hemocytes, and activation of apoptotic pathways.
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Affiliation(s)
- Danilo Barreto Barbosa
- Laboratório Integrado de Morfologia, Núcleo em Ecologia e Desenvolvimento Sócio Ambiental de Macaé, NUPEM, Universidade Federal do Rio de Janeiro, Campus UFRJ, Macaé, RJ, Brazil; Programa de Pós-graduação em Ciências Ambientais e Conservação, NUPEM, UFRJ, Macaé, RJ, Brazil
| | - Andressa de Abreu Mello
- Laboratório Integrado de Morfologia, Núcleo em Ecologia e Desenvolvimento Sócio Ambiental de Macaé, NUPEM, Universidade Federal do Rio de Janeiro, Campus UFRJ, Macaé, RJ, Brazil; Laboratório de Neurobiologia Comparativa e do Desenvolvimento, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação em Ciências Biológicas, Biofísica, UFRJ, Rio de Janeiro, RJ, Brazil
| | - Silvana Allodi
- Laboratório de Neurobiologia Comparativa e do Desenvolvimento, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação em Ciências Biológicas, Biofísica, UFRJ, Rio de Janeiro, RJ, Brazil
| | - Cintia Monteiro de Barros
- Laboratório Integrado de Morfologia, Núcleo em Ecologia e Desenvolvimento Sócio Ambiental de Macaé, NUPEM, Universidade Federal do Rio de Janeiro, Campus UFRJ, Macaé, RJ, Brazil; Programa de Pós-graduação em Ciências Ambientais e Conservação, NUPEM, UFRJ, Macaé, RJ, Brazil.
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22
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Lima D, Zacchi FL, Mattos JJ, Flores-Nunes F, Gomes CHADM, de Mello ÁCP, Siebert MN, Piazza CE, Taniguchi S, Sasaki ST, Bícego MC, Bebianno MJ, de Almeida EA, Bainy ACD. Molecular and cellular effects of temperature in oysters Crassostrea brasiliana exposed to phenanthrene. CHEMOSPHERE 2018; 209:307-318. [PMID: 29933167 DOI: 10.1016/j.chemosphere.2018.06.094] [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: 12/20/2017] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Exposure of aquatic organisms to polycyclic aromatic hydrocarbons (PAH), such as phenanthrene (PHE), may increase the production of reactive oxygen species (ROS) and cause changes in the biotransformation systems. In addition, changes in water temperature can cause adverse effects in the organisms. Estuarine species, like the oyster Crassostrea brasiliana, can adapt and tolerate temperature variation. To evaluate the influence of temperature on biological responses of C. brasiliana exposed to PHE, oysters were maintained at three temperatures (18, 24 and 32 °C) for 15 days and co-exposed afterwards to 100 μg.L-1 of PHE for 24 and 96 h. Levels of PHE in the water and oyster tissues were determined, respectively after 24 and 96 h. In addition, thermal stress, biotransformation and oxidative stress-related genes were analyzed in oyster gills, together with the activity of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferases (GST) and levels of lipid peroxidation. Oyster accumulated significant levels of PHE. HSP70-like transcripts were affected by PHE exposure only at 32 °C. Transcript levels of cytochrome P450 isoforms (CYP2-like2 and CYP2AU1) were down-regulated in oysters exposed to PHE for 24 h at 32 °C. GSTΩ-like transcript levels were also down-regulated in the PHE-exposed group at 32 °C. After 96 h, CYP2-like2 transcripts were higher in the PHE exposed groups at 32 °C. Oysters kept at 18 °C showed higher levels of SOD-like transcripts, together with higher GST, GPx and G6PDH activities, associated to lower levels of lipoperoxidation. In general the biological responses evaluated were more affected by temperature, than by co-exposure to PHE.
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Affiliation(s)
- Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research, NEPAQ, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Carlos Henrique Araújo de Miranda Gomes
- Laboratory of Marine Mollusks (LMM), Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Álvaro Cavaler Pessoa de Mello
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Silvio Tarou Sasaki
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Maria João Bebianno
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil; CIMA, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal
| | - Eduardo Alves de Almeida
- Department of Natural Sciences, Fundação Universidade Regional de Blumenau, Blumenau, SC, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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23
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Sun M, Liu G, Lin H, Zhang T, Guo W. Effect of salinity on the bioaccumulation and depuration of cadmium in the pacific cupped oyster, Crassostrea gigas. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 62:88-97. [PMID: 29986282 DOI: 10.1016/j.etap.2018.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
As a euryhaline species, the oyster Crassostrea gigas can adapt rapid and dramatic salinity fluctuations, and show physiological mechanisms of adaption to tolerant salinity changes. They are continuously exposed to Cd because they are filter feeders and their mobility is poor. In order to understand the influence of salinity on the molecular responses of C. gigas exposed to Cd, oysters were acclimatized to different salinities (13, 20, 27, and 34) for 14 days and then exposed to 10 μg/L Cd for 28 d, followed by a depuration period of 35 d. Control groups were kept at the same salinities without Cd. Oysters were sampled for chemical analysis by inductively coupled plasma mass spectrometry (ICP-MS) and for mRNA quantification by qPCR. The rank order of the mean concentrations of Cd in oyster tissues was digestive gland > mantle > adductor muscle. Use of a two-compartment model showed that in the three tissues, Cd uptake rates (k1) in digestive gland (13.525-35.430 d-1) also increased as salinity decreased. However, no difference was observed in Cd uptake rates of C.gigas in the three higher salinities in mantle (11.703-17.250 d-1). Cd depuration rates (k2) (0.0139 - 0.0127 d-1 in mantle and 0.0111-0.0134 d-1 in digestive gland) followed a reverse trend. There was not a relationship between k2 and salinity in adductor muscle. In response to Cd contamination, MT was significantly up-regulated by Cd at all salinities, and P-gp was significantly up-regulated in mantle, while down-regulated in digestive gland, which means a disruption of the protein synthesis at high concentration. At depuration phase, MT level was higher in digestive gland and mantle, and its expression was higher at S13 than that at S34. No relationship was found between the P-gp gene expression level and concentrations of cadmium in tissues in either accumulation phase or depuration phase. In accumulation phase, the MT gene expression level was positively correlated with the concentration of cadmium in both the digestive gland and the mantle, while the relationship was weakened in depuration phase, suggesting an effort to create a detoxification mechanism.
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Affiliation(s)
- Ming Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, PR China; Marine Biology Institute of Shandong Province, Qingdao, 266104, PR China
| | - Guangbin Liu
- Marine Biology Institute of Shandong Province, Qingdao, 266104, PR China
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, PR China
| | - Tianwen Zhang
- Marine Biology Institute of Shandong Province, Qingdao, 266104, PR China
| | - Wen Guo
- Marine Biology Institute of Shandong Province, Qingdao, 266104, PR China.
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24
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Müller GDAES, Lüchmann KH, Razzera G, Toledo-Silva G, Bebianno MJ, Marques MRF, Bainy ACD. Proteomic response of gill microsomes of Crassostrea brasiliana exposed to diesel fuel water-accommodated fraction. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 201:109-118. [PMID: 29906693 DOI: 10.1016/j.aquatox.2018.06.001] [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: 10/03/2017] [Revised: 05/28/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Diesel fuel water-accommodated fraction (diesel-WAF) is a complex mixture of organic compounds that may cause harmful effects to marine invertebrates. Expression of microsomal proteins can be changed by oil exposure, causing functional alterations in endoplasmic reticulum (ER). The aim of this study was to investigate changes in protein expression signatures in microsomes of oysterl Crassostrea brasiliana (=C.gasar) gill after exposure to 10% diesel-WAF for 24 and 72 h. Protein expression signatures of gills of oysters exposed to diesel-WAF were compared to those of unexposed oysters using two-dimensional electrophoresis (2-DE) to identify differentially expressed proteins. A total of 458 protein spots with molecular weights between 30-75 kDa were detected by 2-DE in six replicates of exposed oyster proteomes compared to unexposed ones. Fourteen differentially expressed proteins (six up-regulated and eight down-regulated) were identified. They are: proteins related to xenobiotic biotransformation (cytochrome P450 6 A, NADPH-cytochrome P450 reductase); cytoskeleton (α-tubulin, β-tubulin, gelsolin); processing and degradation of proteins pathways (thioredoxin domain-containing protein E3 ubiquitin-protein ligase MIB2); involved in the biosynthesis of glycolipids and glycoproteins (beta-1,3-galactosyltransferase 1); associated with stress responses (glutamate receptor 4 and 14-3-3 protein zeta, corticotropin-releasing factor-binding protein); plasmalogen biosynthesis (fatty acyl-CoA reductase 1), and sodium-and chloride-dependent glycine transporter 2 and glyoxylate reductase/hydroxypyruvate reductase. Different patterns of protein responses were observed between 24 and 72 h-exposed groups. Expression pattern of microsomal proteins provided a first insight on the potential diesel-WAF effects at protein level in microsomal fraction of oyster gills and indicated new potential biomarkers of exposure and effect. The present work can be a basis for future ecotoxicological studies in oysters aiming to elucidate the molecular mechanisms behind diesel-WAF toxicity and for environmental monitoring programs.
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Affiliation(s)
- Gabrielle do Amaral E Silva Müller
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Karim Hahn Lüchmann
- Laboratory of Biochemistry and Molecular Biology - LBBM, Fishery Engineering Department, Santa Catarina State University, Laguna, 88790-000, Brazil
| | - Guilherme Razzera
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Guilherme Toledo-Silva
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Maria João Bebianno
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil; Centre of Marine and Environmental Research (CIMA), University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal
| | - Maria Risoleta Freire Marques
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil.
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Pan L, Zhang M, Jin Q, Ji R. Multi-biomarker approach in the scallop Chlamys farreri to assess PAHs pollution in Qingdao coastal areas of China. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2017; 19:1387-1403. [PMID: 28933499 DOI: 10.1039/c7em00186j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A multi-biomarker approach was conducted in the scallop Chlamys farreri from three sites, denoted here as S1, S2, and S3, in Qingdao coastal areas of China in March, June, September and December 2014 to assess pollution from polycyclic aromatic hydrocarbons (PAHs) and to select appropriate biomarkers. A suite of biological responses of the gills and digestive glands of the scallops was assayed, including: (i) phase I detoxification enzymes of 7-ethoxyresorufin-O-deethylase (EROD), epoxide hydrolase (EH), and dihydrodiol dehydrogenase (DD) and phase II detoxification enzymes of glutathione-S-transferase (GST) and sulfotransferase (SULT); (ii) antioxidant enzymes: catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx); (iii) oxidative damage parameters: lipid peroxidation (LPO) expressed by malondialdehyde (MDA) contents, protein carbonylation (PC) and DNA damage (F value); and (iv) the metabolism-related genes of EH, DD, GST, SULT and SOD. Simultaneously, the concentrations of total PAHs along with 16 types of PAHs previously identified by the US Environmental Protection Agency (USEPA) and environmental parameters, including temperature and salinity together with pH, were measured. Using Principle Component Analysis (PCA), it was revealed that S2 was the most PAH-contaminated site, while S1 was identified as the least PAH-polluted site, which was consistent with the results utilizing the Biomarker Response Index (BRI); in other words, the biological health status of S2 was worse than S1 and S3. Moreover, the most suitable biomarkers to assess PAH pollution in Qingdao coastal areas proved to be DD mRNA expression and the F value in both the gills and digestive glands for the total PAHs, DD activity and PC contents or PC and MDA contents in the gills or digestive glands for 5 + 6 rings PAHs and DD mRNA expression in both the gills and digestive glands for 2 + 3 rings and 4 rings PAHs. Moreover, this study highlighted the possible use of the scallop Chlamys farreri for studying contamination due to PAHs and provided valuable information on environmental assessment.
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Affiliation(s)
- Luqing Pan
- Key Laboratory of Mariculture, Fisheries College, Ministry of Education, Ocean University of China, Yushan Road 5, 266003, Qingdao, China.
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Sardi AE, Renaud PE, Morais GC, Martins CC, da Cunha Lana P, Camus L. Effects of an in situ diesel oil spill on oxidative stress in the clam Anomalocardia flexuosa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 230:891-901. [PMID: 28738301 DOI: 10.1016/j.envpol.2017.07.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 07/12/2017] [Accepted: 07/13/2017] [Indexed: 06/07/2023]
Abstract
Intensive exploitation and transport of oil and derivatives are increasing the risk of coastal contamination by either dramatic disasters or diffuse sources. Tools for monitoring diffuse contamination, such as diesel oil that leaks from marine vessels are much needed. We experimentally tested the efficiency of antioxidant biomarkers as indicators of chronic exposure to diesel oil in a mudflat from the subtropical Bay of Paranaguá, in southern Brazil. We examined the effects of three successive diesel oil spills, with two weeks of recovery time between exposures, on the edible clam Anomalocardia flexuosa. Previous studies have highlighted its potential as a bioindicator species for diesel oil contamination in subtropical and tropical ecosystems. Endpoints measured in gill and digestive gland homogenates included the activity of antioxidant enzymes SOD, GPx, GST and levels of lipid peroxides. PAHs concentration in sediments and soft tissue were also quantified. GST and SOD were the most responsive biomarkers to the exposure. There were significant but non-cumulative departures from control levels in organisms from treated samples, which were, in all cases, more common 48 h after each experimental spill. Biomarker responses were more evident in the digestive gland than in gills. This work validated the short-term responsiveness of biomarkers as measures of repeated pulsed in situ exposure to low concentrations of diesel oil. For their routine implementation into monitoring programs for tropical estuaries our general recommendations are 1) to include several reference sites, 2) to analyze biomarker data using a logarithmic-scale and 3) to interpret deviations from "normal" activity as multiplicative interval differences.
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Affiliation(s)
- Adriana E Sardi
- Akvaplan-niva, Fram Centre for Climate and the Environment, 9296 Tromsø, Norway; University of Tromsø, Faculty of Science, Faculty of Science and Technology, Department of Science & Safety, N-9037 Tromsø, Norway.
| | - Paul E Renaud
- Akvaplan-niva, Fram Centre for Climate and the Environment, 9296 Tromsø, Norway; University Centre in Svalbard, 9171 Longyearbyen, Norway
| | - Gisele C Morais
- Centro de Estudos Do Mar, Universidade Federal Do Paraná (UFPR), PO Box 61, 83255-000 Pontal Do Paraná, Paraná, Brazil
| | - César C Martins
- Centro de Estudos Do Mar, Universidade Federal Do Paraná (UFPR), PO Box 61, 83255-000 Pontal Do Paraná, Paraná, Brazil
| | - Paulo da Cunha Lana
- Centro de Estudos Do Mar, Universidade Federal Do Paraná (UFPR), PO Box 61, 83255-000 Pontal Do Paraná, Paraná, Brazil
| | - Lionel Camus
- Akvaplan-niva, Fram Centre for Climate and the Environment, 9296 Tromsø, Norway; University of Tromsø, Faculty of Science, Faculty of Science and Technology, Department of Science & Safety, N-9037 Tromsø, Norway
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Müller GDAES, de Lima D, Zacchi FL, Piazza RS, Lüchmann KH, Mattos JJ, Schlenk D, Bainy ACD. Analysis of transcriptional responses of normalizing genes on Crassostrea brasiliana under different experimental conditions. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:2190-2198. [PMID: 28160493 DOI: 10.1002/etc.3755] [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: 11/20/2016] [Revised: 12/29/2016] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
Bivalves show remarkable plasticity to environmental changes and have been proposed as sentinel organisms in biomonitoring. Studies related to transcriptional analysis using quantitative real-time polymerase chain reaction (qRT-PCR) in these organisms have notably increased, imposing a need to identify and validate adequate reference genes for an accurate and reliable analysis. In the present study, 9 reference genes were selected from transcriptome data of Crassostrea brasiliana to identify their suitability as qRT-PCR normalizer genes. The transcriptional patterns were analyzed in gills of oysters under 3 different conditions: different temperatures (18, 24, or 32 °C) and phenanthrene (100 µg L-1 ) combined exposure; different salinities (10, 25, or 35‰) and phenanthrene combined exposure; and 10% of diesel fuel water-accommodated fraction (diesel-WAF) exposure. Reference gene stability was calculated using 5 algorithms (geNorm, NormFinder, BestKeeper, ΔCt, RefFinder). Transcripts of ankyrin-like (ANK), glyceraldehyde 3-phosphate dehydrogenase-like (GAPDH), and α-tubulin-like (TUBA) genes showed minor changes in different temperature/phenanthrene treatment. Transcripts of ANK, β-actin-like, and β-tubulin-like genes showed better stability at salinity/phenanthrene treatment, and ANK, TUBA, and 28S ribosomal protein-like genes showed the most stable transcription pattern in oysters exposed to diesel-WAF exposure. The present study constitutes the first systematic analysis of reference gene selection for qRT-PCR normalization in C. brasiliana. These genes could be employed in studies using qRT-PCR analysis under similar experimental conditions. Environ Toxicol Chem 2017;36:2190-2198. © 2017 SETAC.
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Affiliation(s)
| | - Daína de Lima
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Flávia Lucena Zacchi
- Aquaculture Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rômi Sharon Piazza
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Karim Hahn Lüchmann
- Fishery Engineering Department, Santa Catarina State University, Laguna, Santa Catarina, Brazil
| | - Jacó Joaquim Mattos
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside California, United States
| | - Afonso Celso Dias Bainy
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Danielli NM, Trevisan R, Mello DF, Fischer K, Deconto VS, da Silva Acosta D, Bianchini A, Bainy ACD, Dafre AL. Upregulating Nrf2-dependent antioxidant defenses in Pacific oysters Crassostrea gigas: Investigating the Nrf2/Keap1 pathway in bivalves. Comp Biochem Physiol C Toxicol Pharmacol 2017; 195:16-26. [PMID: 28216009 DOI: 10.1016/j.cbpc.2017.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 02/09/2017] [Accepted: 02/09/2017] [Indexed: 01/28/2023]
Abstract
Analysis of the Pacific oyster Crassostrea gigas annotated genome revealed genes with conserved sequences belonging to typical cap 'n' collar Nrf2 domain, a major player in antioxidant protection, and domains belonging to Nrf2 cytoplasmic repressor (Keap1), but little is known about Nrf2/Keap1 induction in bivalves. C. gigas were exposed to waterborne 10 and 30μM curcumin, a known inducer of the mammalian Nrf2. Curcumin disappeared from the seawater after 10h, and accumulated in the gills (10h) and digestive gland (10-96h). A clear induction of glutathione (GSH)-related antioxidant defenses was observed at 96h in the gills of curcumin exposed animals (10 and 30μM), including GSH levels, and the activity of glutathione reductase (GR), glutathione peroxidase (GPx), and glutathione S-transferase (GST). This response was completely absent in the digestive gland, in line with the idea that bivalve gills act as a major site for antioxidant protection under acute exposure. The relative mRNA levels coding glutamate-cysteine ligase, GR, GPx2 and GSTpi were clearly induced by curcumin treatment (30μM, 24h). Curcumin pre-treatment for 96h increased oyster resistance to cumene hydroperoxide, but neither Nrf2 nor Keap1 genes were modulated by curcumin. However, the conserved sequences belonging to typical Nrf2 and Keap1 domains, and the notorious induction of antioxidant defense-related genes known to be controlled by Nrf2 in mammals, indicates a functional Nrf2/Keap1 pathway in bivalves, and curcumin seems to be a new tool to investigate the antioxidant response in bivalves.
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Affiliation(s)
- Naissa Maria Danielli
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil.
| | - Rafael Trevisan
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Danielle Ferraz Mello
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Kelvis Fischer
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Vanessa Schadeck Deconto
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Daiane da Silva Acosta
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Adalto Bianchini
- Institute of Biological Sciences, Federal University of Rio Grande, 96203-900 Rio Grande, RS, Brazil
| | - Afonso Celso Dias Bainy
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Alcir Luiz Dafre
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil.
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Zacchi FL, de Lima D, Flores-Nunes F, Mattos JJ, Lüchmann KH, de Miranda Gomes CHA, Bícego MC, Taniguchi S, Sasaki ST, Dias Bainy AC. Transcriptional changes in oysters Crassostrea brasiliana exposed to phenanthrene at different salinities. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 183:94-103. [PMID: 28040644 DOI: 10.1016/j.aquatox.2016.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/15/2016] [Accepted: 12/17/2016] [Indexed: 06/06/2023]
Abstract
Euryhaline animals from estuaries, such as the oyster Crassostrea brasiliana, show physiological mechanisms of adaptation to tolerate salinity changes. These ecosystems receive constant input of xenobiotics from urban areas, including polycyclic aromatic hydrocarbons (PAHs), such as phenanthrene (PHE). In order to understand the influence of salinity on the molecular responses of C. brasiliana exposed to PHE, oysters were acclimatized to different salinities (35, 25 and 10) for 15days and then exposed to 100μgL-1 PHE for 24h and 96h. Control groups were kept at the same salinities without PHE. Oysters were sampled for chemical analysis and the gills were excised for mRNA quantification by qPCR. Transcript levels of different genes were measured, including some involved in oxidative stress pathways, phases I and II of the xenobiotic biotransformation systems, amino acid metabolism, fatty acid metabolism and aryl hydrocarbon receptor nuclear translocator putative gene. Higher transcript levels of Sulfotransferase-like gene (SULT-like) were observed in oysters exposed to PHE at salinity 10 compared to control (24h and 96h); cytochrome P450 isoforms (CYP2AU1, CYP2-like1) were more elevated in oysters exposed for 24h and CYP2-like2 after 96h of oysters exposed to PHE at salinity 10 compared to control. These results are probably associated to an enhanced Phase I biotransformation activity required for PHE detoxification under hyposmotic stress. Higher transcript levels of CAT-like, SOD-like, GSTm-like (96h) and GSTΩ-like (24h) in oysters kept at salinity 10 compared to organisms at salinities 25 and/or 35 are possibly related to enhaced ROS production. The transcription of these genes were not affected by PHE exposure. Amino acid metabolism-related genes (GAD-like (24h), GLYT-like, ARG-like (96h) and TAUT-like at 24h and 96h) also showed different transcription levels among organisms exposed to different salinities, suggesting their important role for oyster salinity adaptation, which is not affected by exposure to these levels of PHE.
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Affiliation(s)
- Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Daína de Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Karim Hahn Lüchmann
- Laboratory of Biochemistry and Molecular Biology - LBBM, Fishery Engineering Department, Santa Catarina State University, Laguna, Brazil
| | | | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Silvio Tarou Sasaki
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil.
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Vranković J. Age-Related Changes in Antioxidant and Glutathione S-Transferase Enzyme Activities in the Asian Clam. BIOCHEMISTRY (MOSCOW) 2017; 81:224-32. [PMID: 27262191 DOI: 10.1134/s0006297916030044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Aging is accompanied by increased production of free oxygen radicals and impairment of normal cellular functions. The aim of this work was to provide preliminary data on age-related differences in the activities of antioxidant enzymes and phase II biotransformation enzyme glutathione S-transferase (GST) in a wild population of the Asian clam Corbicula fluminea. The antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione reductase (GR), and GST were assessed in visceral mass of four age classes (0+-, 1+-, 2+-, and 3+-year-old) of C. fluminea clams. Age-related changes were seen in antioxidant enzyme status: levels of total SOD (totSOD) (P < 0.05), MnSOD, and CuZnSOD (P < 0.05) activities increased progressively during aging from younger to older clams. Changes in CAT and GR activities with advancing age were found, the levels being the highest in age class II, then being lower in age classes III and IV (P < 0.05). Activities of GPX and GST were lower in the senescent individuals (2+- and 3+-year-old clams) compared with young individuals (0+- and 1+-year-old clams). Overall, the decline of glutathione-dependent enzyme activities, coupled with higher and lower activities of totSOD and CAT, respectively, as the individual grows older, may render the older animals more susceptible to oxidative stress. Data reported here are not intended to be exhaustive since they concern only age/size structure of the population at one locality, so more detailed studies on both the developmental stages and levels of antioxidant enzymes of this new alien species in Serbian rivers are required.
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Affiliation(s)
- J Vranković
- University of Belgrade, Institute for Biological Research "Siniša Stanković", Department of Ecology, Belgrade, 11060, Serbia.
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Zhao H, Li W, Zhao X, Li X, Yang D, Ren H, Zhou Y. Cu/Zn superoxide dismutase (SOD) and catalase (CAT) response to crude oil exposure in the polychaete Perinereis aibuhitensis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:616-627. [PMID: 27743327 DOI: 10.1007/s11356-016-7594-0] [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: 04/08/2016] [Accepted: 09/04/2016] [Indexed: 06/06/2023]
Abstract
Cu/Zn superoxide dismutase (SOD) and catalase (CAT) cDNAs from the polychaete Perinereis aibuhitensis were cloned and characterized in order to investigate the relationship between crude oil exposure and stress response in this worm. The full length of PaSOD was 870 bp and PaCAT was 1967 bp encoding 150 and 506 amino acids, respectively. Gene expression and enzyme activity of Cu/Zn SOD and CAT in response to crude oil contaminated soil (500, 1500, and 3000 mg/kg) were measured. The results showed that expression of the CAT gene and enzyme activity in P. aibuhitensis was positively correlated to the concentration of crude oil and reached a maximum at 15 days of exposure to 3000 mg/kg crude oil. The expression of the SOD gene and enzyme activity of SOD in P. aibuhitensis also increased during exposure to crude oil and reached a maximum at 10 days of exposure to 3000 mg/kg crude oil. These results indicated that SOD and CAT are important for maintaining the balance of cellular metabolism and protecting P. aibuhitensis from crude oil toxicity.
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Affiliation(s)
- Huan Zhao
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China
| | - Wanjuan Li
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China
| | - Xinda Zhao
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China
| | - Xu Li
- Dalian Productivity Promotion Center, Dalian Ocean University, Dalian, 116025, People's Republic of China
| | - Dazuo Yang
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China
| | - Hongwei Ren
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China
| | - Yibing Zhou
- Key Laboratory of Marine Bio-Resource Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, No. 52, HeiShiJiao Street, Dalian, 116023, Liaoning, People's Republic of China.
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Sardi AE, Renaud PE, da Cunha Lana P, Camus L. Baseline levels of oxidative stress biomarkers in species from a subtropical estuarine system (Paranaguá Bay, southern Brazil). MARINE POLLUTION BULLETIN 2016; 113:496-508. [PMID: 27519757 DOI: 10.1016/j.marpolbul.2016.08.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 06/06/2023]
Abstract
Offshore petroleum exploration has increased the risks of oil spills in coastal tropical and subtropical habitats. Monitoring tools are needed to assess and protect environmental health. We determined baseline values of antioxidant biomarkers (CAT, SOD, GPx, GST, MDA) for five ecologically relevant species in a subtropical system in southern Brazil. Regional baseline levels are compared with literature data as a basis to eventually test their efficacy as post-spill monitoring tools. Differences in the antioxidant response among species, contamination, and seasons were tested using univariate and multivariate analyses. The bivalves Anomalocardia flexuosa and Crassostrea rhizophorae and the catfish Genidens genidens emerge as suitable sentinel species. Seasonality is the main factor accounting for biomarkers variability, and not background contamination level. However, interactions between season and contamination level are also significant, indicating that biomarkers respond to complex environmental settings, a fact that needs to be fully understood for designing proper monitoring programs.
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Affiliation(s)
- Adriana E Sardi
- Fram Centre, Akvaplan-niva, 9296 Tromsø, Norway; University of Tromsø, Faculty of Science, Faculty of Science and Technology, Department of Science & Safety, N-9037 Tromsø, Norway.
| | | | - Paulo da Cunha Lana
- Centro de Estudos do Mar, Universidade Federal do Paraná (UFPR), PO Box 61, 83255-000, Pontal do Paraná, Paraná, Brazil
| | - Lionel Camus
- Fram Centre, Akvaplan-niva, 9296 Tromsø, Norway; University of Tromsø, Faculty of Science, Faculty of Science and Technology, Department of Science & Safety, N-9037 Tromsø, Norway
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Ben Naceur C, Maxime V, Ben Mansour H, Le Tilly V, Sire O. Oyster's cells regulatory volume decrease: A new tool for evaluating the toxicity of low concentration hydrocarbons in marine waters. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 133:327-333. [PMID: 27490815 DOI: 10.1016/j.ecoenv.2016.07.030] [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: 03/25/2016] [Revised: 07/15/2016] [Accepted: 07/19/2016] [Indexed: 06/06/2023]
Abstract
Human activities require fossil fuels for transport and energy, a substantial part of which can accidentally or voluntarily (oil spillage) flow to the marine environment and cause adverse effects in human and ecosystems' health. This experiment was designed to estimate the suitability of an original cellular biomarker to early quantify the biological risk associated to hydrocarbons pollutants in seawater. Oocytes and hepatopancreas cells, isolated from oyster (Crassostrea gigas), were tested for their capacity to regulate their volume following a hypo-osmotic challenge. Cell volumes were estimated from cell images recorded at regular time intervals during a 90min-period. When exposed to diluted seawater (osmolalities from 895 to 712mosmkg(-1)), both cell types first swell and then undergo a shrinkage known as Regulatory Volume Decrease (RVD). This process is inversely proportional to the magnitude of the osmotic shock and is best fitted using a first-order exponential decay model. The Recovered Volume Factor (RVF) calculated from this model appears to be an accurate tool to compare cells responses. As shown by an about 50% decrease in RVF, the RVD process was significantly inhibited in cells sampled from oysters previously exposed to a low concentration of diesel oil (8.4mgL(-1) during 24h). This toxic effect was interpreted as a decreased permeability of the cell membranes resulting from an alteration of their lipidic structure by diesel oil compounds. In contrast, the previous contact of oysters with diesel did not induce any rise in the gills glutathione S-transferase specific activity. Therefore, this work demonstrates that the study of the RVD process of cells selected from sentinel animal species could be an alternative bioassay for the monitoring of hydrocarbons and probably, of various chemicals in the environment liable to alter the cellular regulations. Especially, given the high sensitivity of this biomarker compared with a proven one, it could become a relevant and accurate tool to estimate the biological hazards of micropollutants in the water.
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Affiliation(s)
- Chiraz Ben Naceur
- Institut Supérieur des Sciences Appliquées et de Technologie de Mahdia, Université de Monastir, Tunisia
| | - Valérie Maxime
- Université Bretagne Sud, FRE CNRS 3744, IRDL, 56017 Vannes, France
| | - Hedi Ben Mansour
- Institut Supérieur des Sciences Appliquées et de Technologie de Mahdia, Université de Monastir, Tunisia
| | | | - Olivier Sire
- Université Bretagne Sud, FRE CNRS 3744, IRDL, 56017 Vannes, France
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Sandrini-Neto L, Geraudie P, Santana MS, Camus L. Effects of dispersed oil exposure on biomarker responses and growth in juvenile wolfish Anarhichas denticulatus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:21441-21450. [PMID: 27507142 DOI: 10.1007/s11356-016-7359-9] [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: 12/24/2015] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
This study evaluated the sensitivity of the wolfish Anarhichas denticulatus exposed to crude oil, comparing the effects of mechanically dispersed versus chemically dispersed oil using sub-lethal endpoints. To test the toxicity of this controversial technique, two experiments involving exposure of the organisms for 48 h were conducted. The first experiment assessed the effects of oil exposure on biomarker responses. The second experiment monitored the growth of juveniles over 5 weeks after exposure. Overall, this study demonstrated that polycyclic aromatic hydrocarbon (PAH) biliary metabolites, ethoxyresorufin-O-deethylase (EROD), and acetylcholinesterase (AChE) are appropriate biomarkers to assess exposure of A. denticulatus. Growth rate, both in length and weight, was significantly higher in control compared to oil exposure treatments. The lack of differences between chemically and mechanically dispersed oils in biomarker response and growth suggests that dispersant application is no more toxic than the natural oil dispersion. The results indicate the potential for population-level effects resulting from exposure to oil.
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Affiliation(s)
- L Sandrini-Neto
- Centro de Estudos do Mar, Universidade Federal do Paraná, Beira Mar s/n, PO Box 61, Pontal do Paraná, Paraná, 83255-976, Brazil.
| | - P Geraudie
- Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway
| | - M S Santana
- Departamento de Biologia Celular, Universidade Federal do Paraná, Curitiba, Paraná, 81531-980, Brazil
| | - L Camus
- Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway
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35
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Liu X, Wang WX. Physiological and cellular responses of oysters (Crassostrea hongkongensis) in a multimetal-contaminated estuary. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:2577-2586. [PMID: 26970367 DOI: 10.1002/etc.3426] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 02/21/2016] [Accepted: 03/07/2016] [Indexed: 06/05/2023]
Abstract
The Pearl River estuary, southern China, suffers from multiple sources of metal contamination as a result of the rapid industrial development in the region; but the biological impacts of contamination remain unknown. In the present study, a euryhaline oyster, Crassostrea hongkongensis, was collected from different sites of the Pearl River estuary; and various physiological (heart rate, alkaline phosphatase as homeostatic regulation, and glycogen as energy reserve) and cytological (lysosomal membrane stability) biomarkers were quantified to assess this species as a potential bioindicator of metal pollution in contaminated areas. Large variations of metal accumulation levels in the oysters were documented, especially for copper (Cu), zinc (Zn), cadmium (Cd), chromium, and nickel (Ni). Among these metals, the authors demonstrated significant correlations between the digestive gland metal accumulation of Cu, Zn, and Ni and the cellular homeostasis (alkaline phosphatase) and glycogen reserves. Heart rate was positively correlated with Cd but negatively correlated with Cu and Zn concentrations in the gills. Lysosomal membrane stability was significantly inhibited at the most contaminated sites but had no relationship with the accumulated metal concentrations. These measurements indicate that multimetal contamination in the Pearl River estuary impacts the physiological and cytological performance of oysters. Environ Toxicol Chem 2016;35:2577-2586. © 2016 SETAC.
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Affiliation(s)
- Xuan Liu
- Division of Life Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Wen-Xiong Wang
- Division of Life Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.
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36
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Sardi AE, Sandrini-Neto L, da S Pereira L, Silva de Assis H, Martins CC, Lana PDC, Camus L. Oxidative stress in two tropical species after exposure to diesel oil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20952-20962. [PMID: 27488710 DOI: 10.1007/s11356-016-7280-2] [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: 03/14/2016] [Accepted: 07/18/2016] [Indexed: 06/06/2023]
Abstract
Recent offshore petroleum exploration has increased the risks of oil spills worldwide. We investigated biomarker responses to diesel oil exposure in two tropical and subtropical species, the clam Anomalocardia flexuosa and the polychaete Laeonereis culveri. Animals were exposed to oil-spiked sediment at two different concentrations (0.5 L and 1.0 L m-2). Activities of antioxidant enzymes catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx); glutathione transferase (GST); and lipid peroxides (LPO) were assessed in bivalve digestive glands and polychaete whole-body homogenates at 36 and 60 h of exposure. Significant variation in enzymatic antioxidant activity depended on the sampling time after exposure. No similar response patterns, either increases or decreases, were detected for the two target species, and biomarker responses were species-specific. L. culveri showed clearer patterns in its antioxidant response and should be prioritized over other species in biomonitoring studies involving oil exposure. Understanding the temporal variability of these biomarkers is a necessary action before implementing them as indicators measures in oil contamination biomonitoring programs. Our results provide a better understanding of biomarker responses in subtropical species, evidencing their potential use as sentinels of oil contamination.
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Affiliation(s)
- Adriana E Sardi
- Fram Centre, Akvaplan-niva, 9296, Tromsø, Norway.
- Faculty of Science and Technology, Department of Engineering & Safety, University of Tromsø, N-9037, Tromsø, Norway.
| | - Leonardo Sandrini-Neto
- Centro de Estudos do Mar, Universidade Federal do Paraná (UFPR), PO Box 61, Pontal do Paraná, Paraná, CEP 83255-000, Brazil
| | - Leticia da S Pereira
- Departamento de Farmacologia, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Curitiba, Paraná, CEP 81531-990, Brazil
| | - Helena Silva de Assis
- Departamento de Farmacologia, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Curitiba, Paraná, CEP 81531-990, Brazil
| | - Cesar C Martins
- Centro de Estudos do Mar, Universidade Federal do Paraná (UFPR), PO Box 61, Pontal do Paraná, Paraná, CEP 83255-000, Brazil
| | - Paulo da Cunha Lana
- Centro de Estudos do Mar, Universidade Federal do Paraná (UFPR), PO Box 61, Pontal do Paraná, Paraná, CEP 83255-000, Brazil
| | - Lionel Camus
- Fram Centre, Akvaplan-niva, 9296, Tromsø, Norway
- Faculty of Science and Technology, Department of Engineering & Safety, University of Tromsø, N-9037, Tromsø, Norway
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37
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Piazza RS, Trevisan R, Flores-Nunes F, Toledo-Silva G, Wendt N, Mattos JJ, Lima D, Taniguchi S, Sasaki ST, Mello ÁCP, Zacchi FL, Serrano MAS, Gomes CHAM, Bícego MC, Almeida EAD, Bainy ACD. Exposure to phenanthrene and depuration: Changes on gene transcription, enzymatic activity and lipid peroxidation in gill of scallops Nodipecten nodosus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 177:146-155. [PMID: 27286572 DOI: 10.1016/j.aquatox.2016.05.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 06/06/2023]
Abstract
Understanding the mechanism of phenanthrene (PHE) biotransformation and related cellular responses in bivalves can be an important tool to elucidate the risks of polycyclic aromatic hydrocarbons (PAHs) to aquatic organisms. In the present study it was analyzed the transcriptional levels of 13 biotransformation genes related to cytochrome P450 (CYP), glutathione S-transferase (GST), sulfotransferase (SULT), flavin-containing monooxygenase and fatty acid-binding proteins by qPCR in gill of scallops Nodipecten nodosus exposed for 24 or 96h to 50 or 200μgL(-1) PHE (equivalent to 0.28 and 1.12μM, respectively), followed by depuration in clean water for 96h (DEP). Likewise, it was quantified the activity of catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), glutathione reductase (GR), glucose 6-phosphate dehydrogenase (G6PDH), GST and levels of lipid peroxidation. Increased transcriptional levels of CYP2UI-like, CYP2D20-like, CYP3A11-like, GSTomega-like, SULT1B1-like genes were detected in organisms exposed to PHE for 24 or 96h. In parallel, GR and GPX activities increased after 96h exposure to 200μgL(-1) PHE and G6PDH activity increased after 24h exposure to 50μgL(-1) PHE. This enhancement of antioxidant and phase I and II biotransformation systems may be related to the 2.7 and 12.5 fold increases in PHE bioaccumulation after 96h exposure to 50 and 200μgL(-1) PHE, respectively. Interestingly, DEP caused reestablishment of GPX and GR activity, as well as to the transcript levels of all upregulated biotransformation genes (except for SULT1B1-like). Bioaccumulated PHE levels decreased 2.5-2.9 fold after depuration, although some biochemical and molecular modifications were still present. Lipid peroxidation levels remained lower in animals exposed to 200μgL(-1) PHE for 24h and DEP. These data indicate that N. nodosus is able to induce an antioxidant and biotransformation-related response to PHE exposure, counteracting its toxicity, and DEP can be an effective protocol for bivalve depuration after PHE exposure.
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Affiliation(s)
- Rômi S Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Rafael Trevisan
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme Toledo-Silva
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Nestor Wendt
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó J Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Silvio Tarou Sasaki
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Álvaro C P Mello
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Flávia L Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Miguel A S Serrano
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Carlos H A M Gomes
- Laboratory of Marine Mollusks (LMM), Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Márcia C Bícego
- Laboratory of Marine Organic Chemistry, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Eduardo A de Almeida
- Department of Chemical and Environmental Sciences, IBILCE, UNESP, São José do Rio Preto, SP, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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Sandrini-Neto L, Pereira L, Martins CC, Silva de Assis HC, Camus L, Lana PC. Antioxidant responses in estuarine invertebrates exposed to repeated oil spills: Effects of frequency and dosage in a field manipulative experiment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 177:237-249. [PMID: 27309312 DOI: 10.1016/j.aquatox.2016.05.028] [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: 03/02/2016] [Revised: 05/28/2016] [Accepted: 05/30/2016] [Indexed: 06/06/2023]
Abstract
We have experimentally investigated the effects of repeated diesel spills on the bivalve Anomalocardia brasiliana, the gastropod Neritina virginea and the polychaete Laeonereis culveri, by monitoring the responses of oxidative stress biomarkers in a subtropical estuary. Three frequencies of exposure events were compared against two dosages of oil in a factorial experiment with asymmetrical controls. Hypotheses were tested to distinguish between (i) the overall effect of oil spills, (ii) the effect of diesel dosage via different exposure regimes, and (iii) the effect of time since last spill. Antioxidant defense responses and oxidative damage in the bivalve A. brasiliana and the polychaete L. culveri were overall significantly affected by frequent oil spills compared to undisturbed controls. The main effects of diesel spills on both species were the induction of SOD and GST activities, a significant increase in LPO levels and a decrease in GSH concentration. N. virginea was particularly tolerant to oil exposure, with the exception of a significant GSH depletion. Overall, enzymatic activities and oxidative damage in A. brasiliana and L. culveri were induced by frequent low-dosage spills compared to infrequent high-dosage spills, although the opposite pattern was observed for N. virginea antioxidant responses. Antioxidant responses in A. brasiliana and L. culveri were not affected by timing of exposure events. However, our results revealed that N. virginea might have a delayed response to acute high-dosage exposure. Experimental in situ simulations of oil exposure events with varying frequencies and intensities provide a useful tool for detecting and quantifying environmental impacts. In general, antioxidant biomarkers were induced by frequent low-dosage exposures compared to infrequent high-dosage ones. The bivalve A. brasiliana and the polychaete L. culveri are more suitable sentinels due to their greater responsiveness to oil and also to their wider geographical distribution.
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Affiliation(s)
| | - Letícia Pereira
- Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - César C Martins
- Centro de Estudos do Mar, Universidade Federal do Paraná, Pontal do Paraná, PR, Brazil
| | | | - Lionel Camus
- Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway
| | - Paulo C Lana
- Centro de Estudos do Mar, Universidade Federal do Paraná, Pontal do Paraná, PR, Brazil
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Trevisan R, Mello DF, Delapedra G, Silva DGH, Arl M, Danielli NM, Metian M, Almeida EA, Dafre AL. Gills as a glutathione-dependent metabolic barrier in Pacific oysters Crassostrea gigas: Absorption, metabolism and excretion of a model electrophile. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 173:105-119. [PMID: 26859778 DOI: 10.1016/j.aquatox.2016.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/21/2016] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
The mercapturic acid pathway (MAP) is a major phase II detoxification route, comprising the conjugation of electrophilic substances to glutathione (GSH) in a reaction catalyzed by glutathione S-transferase (GST) enzymes. In mammals, GSH-conjugates are exported from cells, and the GSH-constituent amino acids (Glu/Gly) are subsequently removed by ectopeptidases. The resulting Cys-conjugates are reabsorbed and, finally, a mercapturic acid is generated through N-acetylation. This pathway, though very well characterized in mammals, is poorly studied in non-mammalian biological models, such as bivalve mollusks, which are key organisms in aquatic ecosystems, aquaculture activities and environmental studies. In the present work, the compound 1-chloro-2,4-dinitrobenzene (CDNB) was used as a model electrophile to study the MAP in Pacific oysters Crassostrea gigas. Animals were exposed to 10μM CDNB and MAP metabolites were followed over 24h in the seawater and in oyster tissues (gills, digestive gland and hemolymph). A rapid decay was detected for CDNB in the seawater (half-life 1.7h), and MAP metabolites peaked in oyster tissues as soon as 15min for the GSH-conjugate, 1h for the Cys-conjugate, and 4h for the final metabolite (mercapturic acid). Biokinetic modeling of the MAP supports the fast CDNB uptake and metabolism, and indicated that while gills are a key organ for absorption, initial biotransformation, and likely metabolite excretion, hemolymph is a possible milieu for metabolite transport along different tissues. CDNB-induced GSH depletion (4h) was followed by increased GST activity (24h) in the gills, but not in the digestive gland. Furthermore, the transcript levels of glutamate-cysteine ligase, coding for the rate limiting enzyme in GSH synthesis, and two phase II biotransformation genes (GSTpi and GSTo), presented a fast (4h) and robust (∼6-70 fold) increase in the gills. Waterborne exposure to electrophilic compounds affected gills, but not digestive gland, while intramuscular exposure was able to modulate biochemical parameters in both tissues. This study is the first evidence of a fully functional and interorgan MAP pathway in bivalves. Hemolymph was shown to be responsible for the metabolic interplay among tissues, and gills, acting as a powerful GSH-dependent metabolic barrier against waterborne electrophilic substances, possibly also participating in metabolite excretion into the sea water. Altogether, experimental and modeled data fully agree with the existence of a classical mechanism for phase II xenobiotic metabolism and excretion in bivalves.
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Affiliation(s)
- Rafael Trevisan
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil; Department of Aquaculture, Federal University of Santa Catarina, 88034-001 Florianópolis, Brazil.
| | - Danielle F Mello
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Gabriel Delapedra
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Danilo G H Silva
- Department of Chemistry and Environmental Sciences, São Paulo State University, 15054-000 São José do Rio Preto, Brazil
| | - Miriam Arl
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Naissa M Danielli
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Marc Metian
- International Atomic Energy Agency-Environment Laboratories (IAEA-EL), 4a Quai Antoine 1er, MC-98000 Principality of Monaco, Monaco
| | - Eduardo A Almeida
- Department of Chemistry and Environmental Sciences, São Paulo State University, 15054-000 São José do Rio Preto, Brazil
| | - Alcir L Dafre
- Department of Biochemistry, Federal University of Santa Catarina, 88040-900 Florianópolis, Brazil
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40
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dos Reis IMM, Mattos JJ, Garcez RC, Zacchi FL, Miguelão T, Flores-Nunes F, Toledo-Silva G, Sasaki ST, Taniguchi S, Bícego MC, Cargnin-Ferreira E, Bainy ACD. Histological responses and localization of the cytochrome P450 (CYP2AU1) in Crassostrea brasiliana exposed to phenanthrene. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 169:79-89. [PMID: 26519834 DOI: 10.1016/j.aquatox.2015.10.011] [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: 06/27/2015] [Revised: 10/15/2015] [Accepted: 10/16/2015] [Indexed: 06/05/2023]
Abstract
Phenanthrene (PHE) is an abundant polycyclic aromatic hydrocarbon (PAH), widely distributed in aquatic environment. The aim of this study was to evaluate the histological and molecular effects in the native oyster Crassostrea brasiliana(Lamarck, 1819) exposed to 100 and 1000 μg L(-1) PHE for 1, 5 and 10 days. Histological and chemical analyses were performed to evaluate, respectively, alterations in oyster tissues and bioaccumulation. In situ hybridization (ISH) was used to assess tissue distribution of CYP2AU1, a gene formerly identified as activated by PHE exposure in this species.Quantitative polymerase chain reaction (qPCR) in mantle was carried out to validate ISH data. Oysters bioaccumulated PHE increasingly along the exposure period in both exposure concentrations. Histologic changes, like tubular atrophy in digestive diverticula (digestive gland) and increased number of mucous cells in the mantle were observed in animals exposed to PHE for 10 days. ISH showed the presence of CYP2AU1transcripts in gills, digestive diverticula, mantle, intestine and gonads, but significant differences in transcript detection by ISH between treatments occurred only in gills, mantle and intestine. A positive and significant correlation between tubular atrophy and CYP2AU1hybridization signal was observed in digestive diverticula, suggesting that this gene product might be involved in energetic metabolism in C. brasiliana. Increased mucous cells and CYP2AU1transcript levels were observed in the mantle, where the inner and middle lobes showed higher intensity of hybridization signal. Mantle should be considered as a target organ for CYP2AU1 transcript evaluation and histological alterations in biomonitoring studies. CYP2AU1 signal in female gonads was observed in all follicular cells from different gonadic stages, while in male only the spermatic follicle cells of the wall in the pre-spawning stage showed this signal. ISH was an effective technique to evaluate the effects of PHE exposure and to locate CYP2AU1 transcripts in different tissues of oyster C. brasiliana.
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Affiliation(s)
- Isis M M dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Jacó J Mattos
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil; Aquaculture Pathology Research Center-NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Ricardo C Garcez
- Laboratory of Stem Cells and Tissue Regeneration, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Flávia L Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Talita Miguelão
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Guilherme Toledo-Silva
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Sílvio T Sasaki
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, São Paulo, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, São Paulo, Brazil
| | - Márcia C Bícego
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, São Paulo, Brazil
| | - Eduardo Cargnin-Ferreira
- Laboratory of Histological Markers, Federal Institute of Education Science and Technology of Santa Catarina, IFSC, Garopaba, Santa Catarina, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil.
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Milinkovitch T, Geraudie P, Camus L, Huet V, Thomas-Guyon H. Biomarker modulation associated with marine diesel contamination in the Iceland scallop (Chlamys islandica). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19292-19296. [PMID: 26490938 DOI: 10.1007/s11356-015-5615-z] [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: 06/17/2015] [Accepted: 10/13/2015] [Indexed: 06/05/2023]
Abstract
The decrease of ice cover in the Arctic will lead to an increase of ship traffic in the upcoming decades. Consequently, oil pollution is expected. In this context, the goals of this study were to evaluate the biological impact of marine diesel contamination and, on this basis, to determine analytical tools of interest (biomarkers) for future biomonitoring of diesel spills. Using a 7-day contamination protocol, this study investigated biochemical modulations in the digestive gland of the Iceland scallop (Chlamys islandica). Incorporation of contaminants was verified assessing haemolymph metabolites. Results showed a response of glutathione-S-transferase to contamination suggesting detoxification processes and the suitability of such a tool for diesel spill biomonitoring. The lack of modulation of superoxide dismutase activity and lipid peroxidation suggests no oxidative stress and the unsuitability of these molecular tools for biomonitoring.
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Affiliation(s)
- Thomas Milinkovitch
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France.
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170, Torregrande, Oristano, Italy.
| | - Perrine Geraudie
- Akvaplan-niva, FRAM, High North Research Centre for Climate and the Environment, 9296, Tromsø, Norway.
| | - Lionel Camus
- Akvaplan-niva, FRAM, High North Research Centre for Climate and the Environment, 9296, Tromsø, Norway.
- Department of Engineering and Safety, UiT the Arctic University of Norway, Postboks 6050 Langnes, 9037, Tromsø, Norway.
| | - Valérie Huet
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France.
| | - Hélène Thomas-Guyon
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France.
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42
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Flores-Nunes F, Mattos JJ, Zacchi FL, Serrano MAS, Piazza CE, Sasaki ST, Taniguchi S, Bicego MC, Melo CMR, Bainy ACD. Effect of linear alkylbenzene mixtures and sanitary sewage in biochemical and molecular responses in pacific oyster Crassostrea gigas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:17386-17396. [PMID: 25869438 DOI: 10.1007/s11356-015-4486-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 04/02/2015] [Indexed: 06/04/2023]
Abstract
Urban effluents are rich in nutrients, organic matter, pharmaceuticals and personal care products (PPCPs), pesticides, hydrocarbons, surfactants, and others. Previous studies have shown that oysters Crassostrea gigas accumulate significant levels of linear alkylbenzenes (LABs) in sanitary sewage contaminated sites, but there is little information about its toxicological effects in marine bivalves. The aim of this study was to analyze the transcription of genes in two tissues of C. gigas exposed for 12, 24, and 36 h to LABs or sanitary sewage. Likewise, the activity of antioxidant and biotransformation enzymes was measured in oysters exposed for 36 h in all groups. Oysters exposed to LABs and oysters exposed to sanitary sewage showed different patterns of transcriptional responses. LAB-exposed oysters showed lower level of biological responses than the oysters exposed to sanitary sewage. Despite the ability of the oyster C. gigas to accumulate LABs (28-fold), the data indicate that these contaminants are not the cause for the transcriptional responses observed in oysters exposed to sanitary sewage. Possibly, the biological changes observed in the sanitary sewage-exposed oysters are associated with the presence of other contaminants, which might have caused synergistic, additive, or antagonistic effects. The results show that FABP-like and GST-ω-like messenger RNAs (mRNAs) have a rapid response in tissues of oyster C. gigas exposed to sanitary sewage, suggesting a possible protective response and a role in maintaining homeostasis of these organisms.
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Affiliation(s)
- Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Jacó J Mattos
- Aquaculture Pathology Research Center-NEPAQ, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Flávia L Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Miguel A S Serrano
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Clei E Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Silvio T Sasaki
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Márcia C Bicego
- Laboratory of Marine Organic Chemistry-LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Cláudio M R Melo
- Laboratory of Marine Mollusks-LMM, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University Santa Catarina, Florianópolis, Brazil.
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Nogueira L, Garcia D, Trevisan R, Sanches ALM, da Silva Acosta D, Dafre AL, Oliveira TYK, de Almeida EA. Biochemical responses in mussels Perna perna exposed to diesel B5. CHEMOSPHERE 2015; 134:210-216. [PMID: 25950138 DOI: 10.1016/j.chemosphere.2015.04.034] [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: 01/10/2015] [Revised: 03/27/2015] [Accepted: 04/15/2015] [Indexed: 06/04/2023]
Abstract
In Brazil B5 blend (5% biodiesel and 95% diesel oil) has been adopted as mandatory fuel since 2010 for automotive vehicles. Since little is known about the effects of B5 exposure can promote on antioxidant system of marine biota this study aimed to assess if B5 can generate modifications in antioxidant parameters of mussels Perna perna. To address this question mussels were exposed to two concentrations of B5 (0.01 mL L(-1) and 0.1 mL L(-1)) for 6h, 12h, 48 h and 168 h. Then the activity of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST) and glutathione reductase (GR) were evaluated in gills and digestive gland as well as the contents of glutathione (GSH) and lipid peroxidation by measuring the malondialdehyde concentration (MDA). In the gills, GST activity decreased after 48 h and GR after 12h of exposure to B5. In digestive glands, the activities of SOD, GPx and GR were changed due to treatments. GSH concentration increased in digestive gland after 6h and 12h and in gills after 48 h for B5 0.1 mL L(-1) and after 168 h in the digestive gland for B5 0.01 mL L(-1) treatment. No lipid peroxidation was detected. The integrated biomarker response index (IBR) evidenced a B5 effect in the digestive gland after 168 h of exposure. Regarding the experimental conditions and species used in this study, long-term exposure to B5 is apparently more likely to affect the parameters tested in P. perna mussels.
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Affiliation(s)
- Lílian Nogueira
- Laboratório de Biomarcadores de Contaminação Aquática, Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (IBILCE/UNESP), 15054-000 São José do Rio Preto, SP, Brazil.
| | - Danielly Garcia
- Laboratório de Biomarcadores de Contaminação Aquática, Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (IBILCE/UNESP), 15054-000 São José do Rio Preto, SP, Brazil.
| | - Rafael Trevisan
- Laboratório de Defesas Celulares, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
| | - Ana Letícia Madeira Sanches
- Laboratório de Biomarcadores de Contaminação Aquática, Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (IBILCE/UNESP), 15054-000 São José do Rio Preto, SP, Brazil.
| | - Daiane da Silva Acosta
- Laboratório de Defesas Celulares, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
| | - Alcir Luiz Dafre
- Laboratório de Defesas Celulares, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
| | | | - Eduardo Alves de Almeida
- Laboratório de Biomarcadores de Contaminação Aquática, Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (IBILCE/UNESP), 15054-000 São José do Rio Preto, SP, Brazil.
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Lüchmann KH, Clark MS, Bainy ACD, Gilbert JA, Craft JA, Chipman JK, Thorne MAS, Mattos JJ, Siebert MN, Schroeder DC. Key metabolic pathways involved in xenobiotic biotransformation and stress responses revealed by transcriptomics of the mangrove oyster Crassostrea brasiliana. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 166:10-20. [PMID: 26186662 DOI: 10.1016/j.aquatox.2015.06.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 06/04/2023]
Abstract
The Brazilian oyster Crassostrea brasiliana was challenged to three common environmental contaminants: phenanthrene, diesel fuel water-accommodated fraction (WAF) and domestic sewage. Total RNA was extracted from the gill and digestive gland, and cDNA libraries were sequenced using the 454 FLX platform. The assembled transcriptome resulted in ̃20,000 contigs, which were annotated to produce the first de novo transcriptome for C. brasiliana. Sequences were screened to identify genes potentially involved in the biotransformation of xenobiotics and associated antioxidant defence mechanisms. These gene families included those of the cytochrome P450 (CYP450), 70kDa heat shock, antioxidants, such as glutathione S-transferase, superoxide dismutase, catalase and also multi-drug resistance proteins. Analysis showed that the massive expansion of the CYP450 and HSP70 family due to gene duplication identified in the Crassostrea gigas genome also occurred in C. brasiliana, suggesting these processes form the base of the Crassostrea lineage. Preliminary expression analyses revealed several candidates biomarker genes that were up-regulated during each of the three treatments, suggesting the potential for environmental monitoring.
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Affiliation(s)
- Karim H Lüchmann
- Fishery Engineering Department, Santa Catarina State University, Laguna, Brazil.
| | - Melody S Clark
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK.
| | - Afonso C D Bainy
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Jack A Gilbert
- Biosciences Division (BIO), Argonne National Laboratory, Argonne, USA; Department of Ecology and Evolution, University of Chicago, Chicago, USA; Marine Biological Laboratory, Woods Hole, USA; College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China.
| | - John A Craft
- Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, UK.
| | - J Kevin Chipman
- School of Biological Sciences, The University of Birmingham, Birmingham, UK.
| | - Michael A S Thorne
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK.
| | - Jacó J Mattos
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Marília N Siebert
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Declan C Schroeder
- Marine Biological Association of the United Kingdom (MBA), Plymouth, UK.
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45
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Feijó de Oliveira M, Rodrigues E, Suda CNK, Vani GS, Donatti L, Rodrigues E, Lavrado HP. Interactions of temperature, salinity and diesel oil on antioxidant defense enzymes of the limpet Nacella concinna. MARINE POLLUTION BULLETIN 2015; 97:451-459. [PMID: 26077159 DOI: 10.1016/j.marpolbul.2015.05.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
The intertidal and subtidal environments in the Antarctic Peninsula are vulnerable to pollutants, such as diesel oil, a commonly used fuel. Nacella concinna is capable of accumulating polycyclic aromatic hydrocarbons and is a potential biomonitor of diesel oil contamination. This work investigates the interaction of diesel oil, temperature and salinity on the activity of antioxidants enzymes defense of the gills, foot muscle and digestive glands. Upregulation of superoxide dismutase occurred in the three tissues by warming. The foot muscle catalase and the gill glutathione reductase were upregulated only by diesel. The inability to upregulate catalase and glutathione S-transferase in the digestive gland, as well as the increase of lipoperoxidation, suggested that this gland is more susceptible to the deleterious effects from oxidative stress.
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Affiliation(s)
- Mariana Feijó de Oliveira
- Department of Cell Biology, Federal University of Paraná, Centro Politécnico s/No, Curitiba, PR 81.530-130, Brazil; Basic Bioscience Institute, University of Taubaté, Av. Tiradentes, 500-Centro, Taubaté, SP 12030-180, Brazil.
| | - Edson Rodrigues
- Department of Cell Biology, Federal University of Paraná, Centro Politécnico s/No, Curitiba, PR 81.530-130, Brazil; Basic Bioscience Institute, University of Taubaté, Av. Tiradentes, 500-Centro, Taubaté, SP 12030-180, Brazil.
| | - Cecília N K Suda
- Basic Bioscience Institute, University of Taubaté, Av. Tiradentes, 500-Centro, Taubaté, SP 12030-180, Brazil.
| | - Gannabathula S Vani
- Basic Bioscience Institute, University of Taubaté, Av. Tiradentes, 500-Centro, Taubaté, SP 12030-180, Brazil.
| | - Lucélia Donatti
- Department of Cell Biology, Federal University of Paraná, Centro Politécnico s/No, Curitiba, PR 81.530-130, Brazil.
| | - Edson Rodrigues
- Basic Bioscience Institute, University of Taubaté, Av. Tiradentes, 500-Centro, Taubaté, SP 12030-180, Brazil.
| | - Helena P Lavrado
- Department of Marine Biology, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373-CCS-Bloco A-Sala 89, Rio de Janeiro, RJ 21941-902, Brazil.
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Chen H, Zha J, Liang X, Li J, Wang Z. Effects of the human antiepileptic drug carbamazepine on the behavior, biomarkers, and heat shock proteins in the Asian clam Corbicula fluminea. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 155:1-8. [PMID: 24952113 DOI: 10.1016/j.aquatox.2014.06.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 05/28/2014] [Accepted: 06/02/2014] [Indexed: 05/13/2023]
Abstract
Carbamazepine (CBZ), an anticonvulsant and mood-stabilizing pharmaceutical, is a widespread contaminant in aquatic environments. In this study, the effects of chronic exposure to environmentally relevant CBZ concentrations were investigated in freshwater clams Corbicula fluminea. Adult C. fluminea were exposed to 0.5, 5, and 50 μg/L of CBZ for 30 days, after which siphoning behavior (filtration rates), biomarker levels, and heat shock protein expression were measured. The filtration rates were significantly decreased (p<0.05) by 50 μg/L CBZ treatment, indicating a negative impact on C. fluminea health. Superoxide dismutase (SOD) and glutathione reductase (GR) activities were decreased, and catalase (CAT) activity and malondialdehyde (MDA) content were increased in the gills and digestive gland, suggesting that CBZ induced an oxidative effect. The levels of Hsp22, Hsp40, and Hsp70 mRNAs were also markedly induced after 5 or 50 μg/L CBZ treatment (p<0.05), whereas Hsp60 and Hsp90 mRNAs in gills and Hsp60 mRNA in digestive gland were significantly repressed (p<0.05). Finally, the expression of Hsp70 protein was significantly increased (p<0.05) by 5 and 50 μg/L exposure. In aggregate, these results confirm that environmentally relevant concentrations of CBZ can exert a negative effect on C. fluminea tissue at the molecular and protein level.
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Affiliation(s)
- Huihui Chen
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Rd 18, Haidian District, PO Box 2871, Beijing 100085, PR China
| | - Jinmiao Zha
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Rd 18, Haidian District, PO Box 2871, Beijing 100085, PR China.
| | - Xuefang Liang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Rd 18, Haidian District, PO Box 2871, Beijing 100085, PR China
| | - Jiasu Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Rd 18, Haidian District, PO Box 2871, Beijing 100085, PR China
| | - Zijian Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Rd 18, Haidian District, PO Box 2871, Beijing 100085, PR China.
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47
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Marques JA, de Assis HCS, Guiloski IC, Sandrini-Neto L, Carreira RS, Lana PC. Antioxidant defense responses in Mytella guyanensis (Lamarck, 1819) exposed to an experimental diesel oil spill in Paranaguá Bay (Paraná, Brazil). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 107:269-275. [PMID: 25011124 DOI: 10.1016/j.ecoenv.2014.06.001] [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: 10/01/2013] [Revised: 05/23/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
We evaluated the effects of diesel oil on the bivalve Mytella guyanensis using biomarkers of oxidative stress (glutathione S-transferase, glutathione peroxidase, and reduced glutathione) after an experimental in situ spill in a mangrove area in southern Brazil. A linear model was developed for the Multiple Before-After Control-Impact (MBACI) experimental design to assess the significance of biological responses. Control and impacted sites were sampled seven and two days before as well as two and seven days after the spill. With the exception of a late response of reduced glutathione (GSH) levels on day seven, none of the biomarkers were significantly altered by the impact. This result was attributed to the high environmental variability of the experimental sites combined with a low sensitivity of Mytella guyanensis to diesel oil at short time-scales. The high resistance of M. guyanensis suggests that its antioxidant response is triggered only after a medium- to long-term exposure to contaminants.
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Affiliation(s)
- Joseane A Marques
- Laboratório de Bentos, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira Mar, s/n, CEP 83255-000 Pontal do Paraná, PR, Brazil.
| | - Helena C Silva de Assis
- Departamento de Farmacologia, Universidade Federal do Paraná, Caixa Postal 19031, CEP 81531-970 Curitiba, PR, Brazil
| | - Izonete C Guiloski
- Departamento de Farmacologia, Universidade Federal do Paraná, Caixa Postal 19031, CEP 81531-970 Curitiba, PR, Brazil
| | - Leonardo Sandrini-Neto
- Laboratório de Bentos, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira Mar, s/n, CEP 83255-000 Pontal do Paraná, PR, Brazil
| | - Renato S Carreira
- LABMAM/Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, CEP 22453-900 Rio de Janeiro, Brazil
| | - Paulo C Lana
- Laboratório de Bentos, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira Mar, s/n, CEP 83255-000 Pontal do Paraná, PR, Brazil
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Lüchmann KH, Dafre AL, Trevisan R, Craft JA, Meng X, Mattos JJ, Zacchi FL, Dorrington TS, Schroeder DC, Bainy ACD. A light in the darkness: new biotransformation genes, antioxidant parameters and tissue-specific responses in oysters exposed to phenanthrene. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 152:324-334. [PMID: 24813265 DOI: 10.1016/j.aquatox.2014.04.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/15/2014] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Abstract
Phenanthrene (PHE), a major component of crude oil, is one of the most abundant polycyclic aromatic hydrocarbons (PAHs) in aquatic ecosystems, and is readily bioavailable to marine organisms. Understanding the toxicity of PAHs in animals requires knowledge of the systems for xenobiotic biotransformation and antioxidant defence and these are poorly understood in bivalves. We report, for the first time, new transcripts and tissue-specific transcription in gill and digestive gland from the oyster Crassostrea brasiliana following 24h exposure to 100 and 1000μgL(-1) PHE, a model PAH. Six new cytochrome P450 (CYP) and four new glutathione S-transferase (GST) genes were analysed by means of quantitative reverse transcription PCR (qRT-PCR). Different antioxidant endpoints, including both enzymatic and non-enzymatic parameters, were assessed as potential biomarkers of oxidative stress. GST activity was measured as an indicator of phase II biotransformation. Rapid clearance of PHE was associated with upregulation of both phase I and II genes, with more pronounced effects in the gill at 1000μgL(-1) PHE. After 24h of exposure, PHE also caused impairment of the antioxidant system, decreasing non-protein thiols and glutathione levels. On the other hand, no change in antioxidant enzymes was observed. PHE treatment (100μgL(-1)) significantly decreased GST activity in the gill of exposed oysters. Both CYP and GST were transcribed in a tissue-specific manner, reflecting the importance of the gill in the detoxification of PAHs. Likewise, the antioxidant parameters followed a similar pattern. The data provide strong evidence that these genes play key roles in C. brasiliana biotransformation of PHE and highlight the importance of gill in xenobiotic metabolism.
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Affiliation(s)
- Karim H Lüchmann
- Fishery Engineering Department, Santa Catarina State University, Laguna 88790-000, Brazil.
| | - Alcir L Dafre
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Rafael Trevisan
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - John A Craft
- Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, United Kingdom
| | - Xiang Meng
- Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, United Kingdom
| | - Jacó J Mattos
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Flávia L Zacchi
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Tarquin S Dorrington
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Declan C Schroeder
- Marine Biological Association of the United Kingdom, Citadel Hill, Plymouth PL1 2PB, United Kingdom
| | - Afonso C D Bainy
- Biochemistry Department, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
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49
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Proteomic approach for identifying gonad differential proteins in the oyster (Crassostrea angulata) following food-chain contamination with HgCl2. J Proteomics 2013; 94:37-53. [DOI: 10.1016/j.jprot.2013.08.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/17/2013] [Accepted: 08/20/2013] [Indexed: 12/17/2022]
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50
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Rhee JS, Kim BM, Choi BS, Choi IY, Wu RSS, Nelson DR, Lee JS. Whole spectrum of cytochrome P450 genes and molecular responses to water-accommodated fractions exposure in the marine medaka. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:4804-4812. [PMID: 23573833 DOI: 10.1021/es400186r] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Water-accommodated fractions (WAFs) of crude oil include chemicals that are potent toxicants in fish. Increasing oil pollution thus demands a better understanding of molecular mechanisms for detoxification, metabolism, toxicity, and adaptation of fish. Previous studies with fish show modulation of expression of key genes in relation to stress response against WAF exposure, but there is still a lack of studies on responses of cytochrome P450 (CYP) genes and changes in biotransformation upon WAF exposure. In this study, we used the full spectrum of CYP genes of the marine medaka, Oryzias melastigma, to understand their potential mode of action on WAFs-triggered molecular mechanisms. We also analyzed further CYP-involved detoxification and endogenous steroidogenic metabolism after exposure to different concentrations of WAFs over different time courses in the marine medaka. Also, detoxification- and antioxidant-related enzymes' activities were analyzed with different concentrations of WAFs. As a result, the WAF exposure induced CYP-involved detoxification mechanism but reduced CYP-involved steroidogenic metabolism in the marine medaka. These data suggest that whole CYP profiling can be a way of understanding and uncovering the mode of action particularly with respect to emerging chemicals such as WAF exposure with the new finding that WAFs have dual functions on CYP-involved metabolisms.
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Affiliation(s)
- Jae-Sung Rhee
- Research Institute for Natural Sciences, Hanyang University, Seoul 133-791, South Korea
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