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Harayashiki CAY, Rodrigues CC, Rocha TL. Multi- and transgenerational effects of environmental chemicals on mollusks: An underexplored experimental design in aquatic (eco)toxicological studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124058. [PMID: 38685557 DOI: 10.1016/j.envpol.2024.124058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/02/2024]
Abstract
(Eco)toxicological studies frequently evaluate the effects of chemicals in one life stage of organisms, but the use of these outcomes can only partially estimate populational effects. In this regard, multi- and/or transgenerational studies should be performed in order to provide information on contaminant effects in a populational functioning context. The present review aimed to summarize and critically evaluate the current knowledge regarding multi- and/or transgenerational effects of traditional and emerging environmental chemicals on mollusks. Results showed that these kinds of studies were performed in aquatic mollusks (bivalve and gastropod), being Gastropoda the mollusk Class most frequently studied. Additionally, freshwater species and multigenerational studies were more common for this class. For the Bivalvia class, only marine species were evaluated, and transgenerational exposure was more commonly assessed. The effects were reported for 15 species, highlighting the marine bivalves Crassostrea gigas and Saccostrea glomerata, and the freshwater gastropod Lymnaea stagnalis. Multi- and transgenerational effects were described for 8 environmental chemical groups, mainly metals, pesticides, and pharmaceuticals. In general, multi- and transgenerational exposure induced biometric, developmental, and reproductive impairments in mollusks, indicating that environmental chemicals might lead to generational impairments, reduced population growth and reproductive capacity, and decreased fitness. The current study indicated that bivalves and gastropods are suitable organism models to assess the multi- and transgenerational adverse effects induced by traditional and emerging environmental chemicals.
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Affiliation(s)
- Cyntia Ayumi Yokota Harayashiki
- Laboratory of Environmental Biotechnology and Ecotoxicology (LaBAE), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil.
| | - Cândido Carvalho Rodrigues
- Laboratory of Environmental Biotechnology and Ecotoxicology (LaBAE), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil; Environmental Metallomics Laboratory, Department of Biological Sciences, University of Québec at Montréal (UQAM), Montréal, QC, H2X 1Y4, Canada
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology (LaBAE), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
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Munaron D, Mérigot B, Derolez V, Tapie N, Budzinski H, Fiandrino A. Evaluating pesticide mixture risks in French Mediterranean coastal lagoons waters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161303. [PMID: 36592913 DOI: 10.1016/j.scitotenv.2022.161303] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/27/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
To assess the risk of pesticide mixtures in lagoon waters, this study adopted a multi-step approach using integrative passive samplers (POCIS) and concentration addition (CA) toxicological models. Two French Mediterranean lagoons (Thau and Or) were monitored for a range of 68 pesticides continuously over a period of a year (2015-16). The findings revealed mixtures of dissolved pesticides with varying composition and levels over the year. The Or site contained more pesticides than Thau site (37 vs 28 different substances), at higher concentrations (0.1-58.6 ng.L-1 at Or vs <0.1-9.9 at Thau) and with overall higher detection frequencies. All samples showed a potential chronic toxicity risk, depending on the composition and concentrations of co-occurring pesticides. In 74 % of the samples, this pesticide risk was driven by a few single substances (ametryn, atrazine, azoxystrobin, carbendazim, chlorotoluron, irgarol, diuron and metolachlor) and certain transformation products (e.g. DPMU and metolachlor OA/ESA). Individually, these were a threat for the three taxa studied (phytoplankton, crustaceans and fish). Yet even a drastic reduction of these drivers alone (up to 5 % of their current concentration) would not eliminate the toxicity risks in 56 % of the Or Lagoon samples, due to pesticide mixtures. The two CA-based approaches used to assess the combined effect of these mixtures, determined chronic potential negative impacts for both lagoons, while no acute risk was highlighted. This risk was seasonal, indicating the importance of monitoring in key periods (summer, winter and spring) to get a more realistic picture of the pesticide threat in lagoon waters. These findings suggest that it is crucial to review the current EU Water Framework Directive's risk-assessment method, as it may incorrectly determine pesticide risk in lagoons.
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Khatir Z, Hizam Z, Lyons B, Leitão A. Aneuploidy in the Pearl Oyster Pinctada radiata (Leach, 1814): Evidence for Nonrandom Chromosome Loss and Gain in Marine Bivalves. MALACOLOGIA 2022. [DOI: 10.4002/040.065.0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zenaba Khatir
- Environmental Science Center (ESC), Qatar University, P.O. Box 2713, Doha, Qatar
| | - Zainab Hizam
- Environmental Science Center (ESC), Qatar University, P.O. Box 2713, Doha, Qatar
| | - Brett Lyons
- Cefas Weymouth Laboratory, Barrack Road, The Nothe, Weymouth DT4 8UB, UK
| | - Alexandra Leitão
- Environmental Science Center (ESC), Qatar University, P.O. Box 2713, Doha, Qatar
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Organophosphate Insecticide Toxicity in Neural Development, Cognition, Behaviour and Degeneration: Insights from Zebrafish. J Dev Biol 2022; 10:jdb10040049. [PMID: 36412643 PMCID: PMC9680476 DOI: 10.3390/jdb10040049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022] Open
Abstract
Organophosphate (OP) insecticides are used to eliminate agricultural threats posed by insects, through inhibition of the neurotransmitter acetylcholinesterase (AChE). These potent neurotoxins are extremely efficacious in insect elimination, and as such, are the preferred agricultural insecticides worldwide. Despite their efficacy, however, estimates indicate that only 0.1% of organophosphates reach their desired target. Moreover, multiple studies have shown that OP exposure in both humans and animals can lead to aberrations in embryonic development, defects in childhood neurocognition, and substantial contribution to neurodegenerative diseases such as Alzheimer's and Motor Neurone Disease. Here, we review the current state of knowledge pertaining to organophosphate exposure on both embryonic development and/or subsequent neurological consequences on behaviour, paying particular attention to data gleaned using an excellent animal model, the zebrafish (Danio rerio).
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Bachère E, Barranger A, Bruno R, Rouxel J, Menard D, Piquemal D, Akcha F. Parental diuron-exposure alters offspring transcriptome and fitness in Pacific oyster Crassostrea gigas. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:51-58. [PMID: 28388477 DOI: 10.1016/j.ecoenv.2017.03.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 06/07/2023]
Abstract
One of the primary challenges in ecotoxicology is to contribute to the assessment of the ecological status of ecosystems. In this study, we used Pacific oyster Crassostrea gigas to explore the effects of a parental exposure to diuron, a herbicide frequently detected in marine coastal environments. The present toxicogenomic study provides evidence that exposure of oyster genitors to diuron during gametogenesis results in changes in offspring, namely, transcriptomic profile alterations, increased global DNA methylation levels and reduced growth and survival within the first year of life. Importantly, we highlighted the limitations to identify particular genes or gene expression signatures that could serve as biomarkers for parental herbicide-exposure and further for multigenerational and transgenerational effects of specific chemical stressors. By analyzing samples from two independent experiments, we demonstrated that, due to complex confounding effects with both tested solvent vehicles, diuron non-specifically affected the offspring transcriptome. These original results question the potential development of predictive genomic tools for detecting specific indirect impacts of contaminants in environmental risk assessments. However, our results indicate that chronic environmental exposure to diuron over several generations may have significant long term impacts on oyster populations with adverse health outcomes.
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Affiliation(s)
- Evelyne Bachère
- Ifremer, UMR 5244, IHPE Interactions-Hosts-Pathogens-Environments, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France.
| | - Audrey Barranger
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes cedex 03, France
| | - Roman Bruno
- Acobiom, 1682 rue de la Valsière, CS 77394 Cap Delta Biopole Euromédecine II, 34184 Montpellier Cedex 04, France
| | - Julien Rouxel
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes cedex 03, France
| | - Dominique Menard
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes cedex 03, France
| | - David Piquemal
- Acobiom, 1682 rue de la Valsière, CS 77394 Cap Delta Biopole Euromédecine II, 34184 Montpellier Cedex 04, France; Diag4Zoo, 1 rue des Loutres, 34170 Montpellier, France
| | - Farida Akcha
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes cedex 03, France
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Piló D, Carvalho S, Pereira P, Gaspar MB, Leitão A. Is metal contamination responsible for increasing aneuploidy levels in the Manila clam Ruditapes philippinarum? THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 577:340-348. [PMID: 27817921 DOI: 10.1016/j.scitotenv.2016.10.193] [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: 09/07/2016] [Revised: 10/24/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
The present study assessed the metal genotoxicity potential at chromosome-level in the bivalve Ruditapes philippinarum collected along different areas of the Tagus estuary. Higher levels of aneuploidy on gill cells were detected at the most sediment contaminated area both in May (31.7%) and October (36.0%) when compared to a less contaminated area over the same periods (20.3% and 29.0% respectively). Interestingly, metal bioaccumulation in gills was higher in the specimens collected at the least contaminated area with the exception of Pb. Indeed, the multivariate analysis revealed a stronger relation between aneuploidy and sediment contamination than between aneuploidy and the bioaccumulation of the metals. The temporal and spatial inconsistency found for the bioaccumulation of metals in R. philippinarum and the positive correlation between sediment contamination and aneuploidy at the most contaminated area suggest that these chromosome-level effects might be due to chronic metal contamination occurring in the Tagus estuary, rather than a direct result of the temporal variation of bioavailable contaminants. The vertical transmission phenomenon of bivalve aneuploidy levels may then be perpetuating those levels on clams from the most contaminated area. The present results shed light about the effect of metal toxicity at the chromosome-level in species inhabiting chronic contaminated areas and highlight the use of aneuploidy as an effective tool to identify persistent contamination in worldwide transitional waters.
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Affiliation(s)
- D Piló
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Avenida 5 de Outubro, 8700-305 Olhão, Portugal; Department of Biology, Faculty of Marine and Environment Sciences, University of Cadiz, Campus de Excelencia International del Mar (CEIMAR), Avda. República Saharaui S/N Puerto Real, 11510 Puerto Real, Cadiz, Spain.
| | - S Carvalho
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center, Thuwal 23955-6900, Saudi Arabia
| | - P Pereira
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Av. Brasília, 1449-006 Lisbon, Portugal; Centre for Environmental and Marine Studies and Department of Biology (CESAM), University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M B Gaspar
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Avenida 5 de Outubro, 8700-305 Olhão, Portugal; Centre of Marine Sciences (CCMAR), University of Algarve (UAlg), Campus de Gambelas, 8005-139 Faro, Portugal
| | - A Leitão
- Environmental Science Center (ESC), Qatar University, P.O. Box 2713, Doha, Qatar
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Rondon R, Grunau C, Fallet M, Charlemagne N, Sussarellu R, Chaparro C, Montagnani C, Mitta G, Bachère E, Akcha F, Cosseau C. Effects of a parental exposure to diuron on Pacific oyster spat methylome. ENVIRONMENTAL EPIGENETICS 2017; 3:dvx004. [PMID: 29492306 PMCID: PMC5804544 DOI: 10.1093/eep/dvx004] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/14/2017] [Accepted: 03/07/2017] [Indexed: 05/18/2023]
Abstract
Environmental epigenetic is an emerging field that studies the cause-effect relationship between environmental factors and heritable trait via an alteration in epigenetic marks. This field has received much attentions since the impact of environmental factors on different epigenetic marks have been shown to be associated with a broad range of phenotypic disorders in natural ecosystems. Chemical pollutants have been shown to affect immediate epigenetic information carriers of several aquatic species but the heritability of the chromatin marks and the consequences for long term adaptation remain open questions. In this work, we investigated the impact of the diuron herbicide on the DNA methylation pattern of spat from exposed Crassotrea gigas genitors. This oyster is one of the most important mollusk species produced worldwide and a key coastal economic resource in France. The whole genome bisulfite sequencing (WGBS, BS-Seq) was applied to obtain a methylome at single nucleotide resolution on DNA extracted from spat issued from diuron exposed genitors comparatively to control spat. We showed that the parental diuron exposure has an impact on the DNA methylation pattern of its progeny. Most of the differentially methylated regions occurred within coding sequences and we showed that this change in methylation level correlates with RNA level only in a very small group of genes. Although the DNA methylation profile is variable between individuals, we showed conserved DNA methylation patterns in response to parental diuron exposure. This relevant result opens perspectives for the setting of new markers based on epimutations as early indicators of marine pollutions.
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Affiliation(s)
- Rodolfo Rondon
- Ifremer, IHPE UMR 5244, Univ. Perpignan Via Domitia, CNRS, Univ. Montpellier, F-34095 Montpellier, France
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - Christoph Grunau
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - Manon Fallet
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - Nicolas Charlemagne
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l’ile d’Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - Rossana Sussarellu
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l’ile d’Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - Cristian Chaparro
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - Caroline Montagnani
- Ifremer, IHPE UMR 5244, Univ. Perpignan Via Domitia, CNRS, Univ. Montpellier, F-34095 Montpellier, France
| | - Guillaume Mitta
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - Evelyne Bachère
- Ifremer, IHPE UMR 5244, Univ. Perpignan Via Domitia, CNRS, Univ. Montpellier, F-34095 Montpellier, France
| | - Farida Akcha
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l’ile d’Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - Céline Cosseau
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
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Ojha A, Gupta YK. Study of commonly used organophosphate pesticides that induced oxidative stress and apoptosis in peripheral blood lymphocytes of rats. Hum Exp Toxicol 2016; 36:1158-1168. [DOI: 10.1177/0960327116680273] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In a previous study, we have found that organophosphate (OP) pesticides such as chlorpyrifos (CPF), methyl parathion (MPT), and malathion (MLT) significantly induced genotoxicity in peripheral blood lymphocytes of rats. To explore the mechanism of OP-induced genotoxicity, we measured the formation of DNA interstrand cross-links (DICs) and apoptosis in peripheral blood lymphocytes of rats. Peripheral blood lymphocytes of rats were treated with CPF, MPT, and MLT individually and in combination at concentrations of 0.1 and 0.25 LC50 for 2, 4, 8, and 12 h at 37°C. Lipid peroxidation (LPO) was measured as a biomarker of oxidative stress. Apoptosis induced by CPF, MPT, and MLT individually and in combination was determined by measuring the intracellular level of active caspase-3 and caspase-9 by spectrofluorimetry. We found significant dose- and time-dependent increases in LPO, DICs formation and increase of intracellular active caspase-3 and caspase-9 in exposed peripheral blood lymphocytes of rats. These findings suggest that the studied pesticides have potential to induce oxidative stress, cause DNA adduct formation, and cause failure of adduct repair, which leads to apoptosis that is partially mediated by activation of intracellular caspase-3 and caspase-9.
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Affiliation(s)
- A Ojha
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - YK Gupta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
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Peraza-Vega RI, Castañeda-Sortibrán AN, Valverde M, Rojas E, Rodríguez-Arnaiz R. Assessing genotoxicity of diuron on Drosophila melanogaster by the wing-spot test and the wing imaginal disk comet assay. Toxicol Ind Health 2016; 33:443-453. [PMID: 27777339 DOI: 10.1177/0748233716670536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The aim of this study was to evaluate the genotoxicity of the herbicide diuron in the wing-spot test and a novel wing imaginal disk comet assay in Drosophila melanogaster. The wing-spot test was performed with standard (ST) and high-bioactivation (HB) crosses after providing chronic 48 h treatment to third instar larvae. A positive dose-response effect was observed in both crosses, but statistically reduced spot frequencies were registered for the HB cross compared with the ST. This latter finding suggests that metabolism differences play an important role in the genotoxic effect of diuron. To verify diuron's ability to produce DNA damage, a wing imaginal disk comet assay was performed after providing 24 h diuron treatment to ST and HB third instar larvae. DNA damage induced by the herbicide had a significantly positive dose-response effect even at very low concentrations in both strains. However, as noted for the wing-spot test, a significant difference between strains was not observed that could be related to the duration of exposure between both assays. A positive correlation between the comet assay and the wing-spot test was found with regard to diuron genotoxicity.
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Affiliation(s)
- Ricardo I Peraza-Vega
- 1 Faculty of Sciences, National Autonomous University of Mexico, Distrito Federal, Mexico
| | | | - Mahara Valverde
- 2 Institute of Biomedical Investigations, National Autonomous University of Mexico, Distrito Federal, Mexico
| | - Emilio Rojas
- 2 Institute of Biomedical Investigations, National Autonomous University of Mexico, Distrito Federal, Mexico
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Behrens D, Rouxel J, Burgeot T, Akcha F. Comparative embryotoxicity and genotoxicity of the herbicide diuron and its metabolites in early life stages of Crassostrea gigas: Implication of reactive oxygen species production. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:249-259. [PMID: 27078212 DOI: 10.1016/j.aquatox.2016.04.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/30/2016] [Accepted: 04/03/2016] [Indexed: 06/05/2023]
Abstract
Herbicides are one of the major classes of pollutants contaminating coastal waters over the world. Among them, diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is a phenylurea herbicide frequently detected in oyster-producing area, known to be toxic for this important exploited non-target species. With the aim to investigate the mechanisms by which diuron displays its toxicity in oyster, the implication of both biotransformation and oxygen reactive species (ROS) production was studied considering embryotoxicity and genotoxicity as endpoints. Comparative embryotoxicity and genotoxicity of diuron and its main metabolites (DCPMU, DCPU and 3,4-DCA) were thus studied on oyster larvae by the embryo-larval bioassay on D larvae and the comet assay on trochophore larvae, respectively. Exposures were also performed in presence and absence of known ROS scavenger compounds - ascorbic acid and N-acetylcysteine, to evaluate the involvement of oxyradicals in the toxic responses. In the case of diuron, the production of ROS on exposed oyster larvae was also measured using 2',7'-dichlorodihydrofluorescein diacetate as a probe for flow cytometric analysis. The results we obtained showed the embryotoxicity and genotoxicity of diuron and its metabolites in early life stages of the Pacific oyster. For concentrations ranging from 0.05 to 0.5μgL(-1), diuron appeared significantly more embryotoxic than DCPMU and DCPU (p<0.001). Embryotoxicity decreased with diuron metabolism as follows: diuron≥DCPMU=DCPU, highlighting that biotransformation can constitute a true detoxication pathways in oyster larvae by decreasing the toxicity of the parent compound. In the opposite, no difference was observed between diuron and its metabolites concerning larval development when considering a lower and more environmentally realistic range of concentrations (0.002-0.050μgL(-1)). 3,4-DCA was the only compound that did not show any sign of embryotoxicity, even at concentrations up to 5μgL(-1). Concerning genotoxicity, no significant difference was observed between diuron and all of its metabolites including 3, 4 DCA with damages detected from the concentration of 0.05μgL(-1). As for diuron, the toxicity of the metabolites seems to be mediated in some part by ROS production as clearly demonstrated by the decrease in genotoxicity and developmental abnormalities in the presence of the oxidant scavenger, ascorbic acid.
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Affiliation(s)
- Daphné Behrens
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes, cedex 03, France
| | - Julien Rouxel
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes, cedex 03, France
| | - Thierry Burgeot
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes, cedex 03, France
| | - Farida Akcha
- Ifremer, Laboratoire d'Ecotoxicologie, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes, cedex 03, France.
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Rondon R, Akcha F, Alonso P, Menard D, Rouxel J, Montagnani C, Mitta G, Cosseau C, Grunau C. Transcriptional changes in Crassostrea gigas oyster spat following a parental exposure to the herbicide diuron. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:47-55. [PMID: 26994368 DOI: 10.1016/j.aquatox.2016.03.007] [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: 08/07/2015] [Revised: 03/01/2016] [Accepted: 03/06/2016] [Indexed: 06/05/2023]
Abstract
The Pacific oyster Crassostrea gigas is the main oyster species produced in the world, and a key coastal economic resource in France. High mortalities affect Pacific oysters since 2008 in France and Europe. Their origins have been attributed to a combination of biotic and abiotic factors, underlining the importance of environment quality. The impact of water pollution has been pointed out and one of the pollutants, the genotoxic herbicide diuron, occurs at high concentrations all along the French coasts. Previous work has revealed that a parental exposure to diuron had a strong impact on hatching rates and offspring development even if spats were not exposed to diuron themselves. In this study, we explored for the first time the transcriptional changes occurring in oyster spats (non exposed) originating from genitors exposed to an environmentally relevant concentration of diuron during gametogenesis using the RNAseq methodology. We identified a transcriptomic remodeling revealing an effect of the herbicide. Different molecular pathways involved in energy production, translation and cell proliferation are particularly disturbed. This analysis revealed modulated candidate genes putatively involved in response to oxidative stress and mitochondrial damage in offspring of genitors exposed to diuron. Complementary measures of the activity of enzymes involved in these latter processes corroborate the results obtained at the transcriptomic level. In addition, our results suggested an increase in energy production and mitotic activity in 5-month-spats from diuron-exposed genitors. These results could correspond to a "catch-up growth" phenomenon allowing the spats from diuron-exposed genitors, which displayed a growth delay at 3 months, to gain a normal size when they reach the age of 6 months. These results indicate that exposure to a concentration of diuron that is frequently encountered in the field during the oyster's gametogenesis stage can impact the next generation and may result in fitness disturbance.
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Affiliation(s)
- R Rondon
- Ifremer, IHPE UMR 5244, Univ. Perpignan Via Domitia, CNRS, Univ. Montpellier, F-34095 Montpellier, France; Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - F Akcha
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - P Alonso
- CNRS, IHPE UMR 5244, Univ. Perpignan Via Domitia, IFREMER, Univ. Montpellier, F-34095 Montpellier, France
| | - D Menard
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - J Rouxel
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - C Montagnani
- Ifremer, IHPE UMR 5244, Univ. Perpignan Via Domitia, CNRS, Univ. Montpellier, F-34095 Montpellier, France.
| | - G Mitta
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - C Cosseau
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
| | - C Grunau
- Univ. Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, Univ. Montpellier, F-66860 Perpignan, France
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Akcha F, Barranger A, Bachère E, Berthelin CH, Piquemal D, Alonso P, Sallan RR, Dimastrogiovanni G, Porte C, Menard D, Szczybelski A, Benabdelmouna A, Auffret M, Rouxel J, Burgeot T. Effects of an environmentally relevant concentration of diuron on oyster genitors during gametogenesis: responses of early molecular and cellular markers and physiological impacts. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:8008-8020. [PMID: 26780042 DOI: 10.1007/s11356-015-5969-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
Genitors of the Pacific oyster Crassostrea gigas were submitted during gametogenesis to a short pulse exposure to the herbicide diuron at a realistic environmental concentration. Histological analysis showed no effect of diuron on gametogenesis course, sex ratio and reproductive effort. A non-significant increase in testosterone and progesterone levels was observed in genitors exposed to the herbicide. At cell level, diuron exposure was shown to modulate the phagocytic activity of circulating hemocytes. The results of a transcriptional analysis showed that diuron affected the expression of genes belonging to functions known to play a major role during oyster gametogenesis such as gene transcription regulation, DNA replication and repair, DNA methylation and cytokinesis. Taking into account the results we previously obtained on the same genitors, this study showed a negative effect of diuron on oyster reproduction by inducing both structural and functional modifications of the DNA.
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Affiliation(s)
- F Akcha
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France.
| | - A Barranger
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France
| | - E Bachère
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095, Montpellier, France
| | - C Heude Berthelin
- Unité Biologie des organismes et écosystèmes aquatiques (BOREA, UMR 7208), Université de Caen Normandie, Sorbonne Universités, Muséum national d'Histoire naturelle, Université Pierre et Marie Curie, CNRS, IRD, 57 rue Cuvier, 75005, Paris, France
| | - D Piquemal
- Acobiom, 1682 rue de la Valsière, CS 77394 Cap Delta Biopole Euromédecine II, 34184, Montpellier Cedex 04, France
| | - P Alonso
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095, Montpellier, France
| | - R Rondon Sallan
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095, Montpellier, France
| | - G Dimastrogiovanni
- IDAEA-CSIC, Environmental Chemistry Department, C/ Jordi Girona, 1808034, Barcelona, Spain
| | - C Porte
- IDAEA-CSIC, Environmental Chemistry Department, C/ Jordi Girona, 1808034, Barcelona, Spain
| | - D Menard
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France
| | - A Szczybelski
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France
| | - A Benabdelmouna
- Ifremer, Laboratoire de Génétique et Pathologies, Rue de Mus de Loup, La Tremblade, 17390, France
| | - M Auffret
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), Institut Universitaire Européen de la Mer (IUEM), UBO/CNRS/IRD/IFREMER, rue Dumont d'Urville, technopôle, Brest-Iroise, 29280, Plouzané, France
| | - J Rouxel
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France
| | - T Burgeot
- Laboratoire d'Ecotoxicologie, Ifremer, Rue de l'Ile d'Yeu, BP21105, 44311, Nantes cedex 03, France
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Cavas L, Donut N, Mert N. Artificial neural network modeling of diuron and irgarol-based HPLC data and their levels from the seawaters in Izmir, Turkey. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2015.1128442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Levent Cavas
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir, Turkey
- Faculty of Sciences, Department of Chemistry, Biochemistry Division, Dokuz Eylül University, İzmir, Turkey
| | - Nursin Donut
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Nazlı Mert
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir, Turkey
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Barranger A, Heude-Berthelin C, Rouxel J, Adeline B, Benabdelmouna A, Burgeot T, Akcha F. Parental exposure to the herbicide diuron results in oxidative DNA damage to germinal cells of the Pacific oyster Crassostrea gigas. Comp Biochem Physiol C Toxicol Pharmacol 2016; 180:23-30. [PMID: 26610786 DOI: 10.1016/j.cbpc.2015.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/16/2015] [Accepted: 11/18/2015] [Indexed: 01/23/2023]
Abstract
Chemical pollution by pesticides has been identified as a possible contributing factor to the massive mortality outbreaks observed in Crassostrea gigas for several years. A previous study demonstrated the vertical transmission of DNA damage by subjecting oyster genitors to the herbicide diuron at environmental concentrations during gametogenesis. This trans-generational effect occurs through damage to genitor-exposed gametes, as measured by the comet-assay. The presence of DNA damage in gametes could be linked to the formation of DNA damage in other germ cells. In order to explore this question, the levels and cell distribution of the oxidized base lesion 8-oxodGuo were studied in the gonads of exposed genitors. High-performance liquid chromatography coupled with UV and electrochemical detection analysis showed an increase in 8-oxodGuo levels in both male and female gonads after exposure to diuron. Immunohistochemistry analysis showed the presence of 8-oxodGuo at all stages of male germ cells, from early to mature stages. Conversely, the oxidized base was only present in early germ cell stages in female gonads. These results indicate that male and female genitors underwent oxidative stress following exposure to diuron, resulting in DNA oxidation in both early germ cells and gametes, such as spermatozoa, which could explain the transmission of diuron-induced DNA damage to offspring. Furthermore, immunostaining of early germ cells seems indicates that damages caused by exposure to diuron on germ line not only affect the current sexual cycle but also could affect future gametogenesis.
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Affiliation(s)
- Audrey Barranger
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France; Ifremer, SG2M, Laboratory of Genetics and Pathology of Marine Molluscs, Avenue de Mus du Loup, 17390 La Tremblade, France.
| | - Clothilde Heude-Berthelin
- Unité Biologie des organismes et écosystèmes aquatiques (BOREA, UMR 7208), Université de Caen Basse-Normandie, Sorbonne Universités, Muséum national d'Histoire naturelle, Université Pierre et Marie Curie, CNRS, IRD, 57 Rue Cuvier, 75005 Paris, France
| | - Julien Rouxel
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - Béatrice Adeline
- Unité Biologie des organismes et écosystèmes aquatiques (BOREA, UMR 7208), Université de Caen Basse-Normandie, Sorbonne Universités, Muséum national d'Histoire naturelle, Université Pierre et Marie Curie, CNRS, IRD, 57 Rue Cuvier, 75005 Paris, France
| | - Abdellah Benabdelmouna
- Ifremer, SG2M, Laboratory of Genetics and Pathology of Marine Molluscs, Avenue de Mus du Loup, 17390 La Tremblade, France
| | - Thierry Burgeot
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - Farida Akcha
- Ifremer, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France.
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