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Yuan Z, Lei Y, Wan B, Yang M, Jiang Y, Tian C, Wang Z, Wang W. Cadmium exposure elicited dynamic RNA m 6A modification and epi-transcriptomic regulation in the Pacific whiteleg shrimp Litopenaeus vannamei. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 52:101307. [PMID: 39126882 DOI: 10.1016/j.cbd.2024.101307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
N6-methyladenosine (m6A) methylation is the most prevalent post-transcriptional RNA modification in eukaryotic organisms, but its roles in the regulation of physiological resistance of marine crustaceans to heavy metal pollutants are poorly understood. In this study, the transcriptome-wide m6A RNA methylation profiles and dynamic m6A changes induced by acute Cd2+ exposure in the the pacific whiteleg shrimp Litopenaeus vannamei were comprehensively analyzed. Cd2+ toxicity caused a significant reduction in global RNA m6A methylation level, with major m6A regulators including the m6A methyltransferase METTL3 and the m6A binding protein YTHDF2 showing declined expression. Totally, 11,467 m6A methylation peaks from 6415 genes and 17,291 peaks within 7855 genes were identified from the Cd2+ exposure group and the control group, respectively. These m6A peaks were predominantly enriched in the 3' untranslated region (UTR) and around the start codon region of the transcripts. 7132 differentially expressed genes (DEGs) and 7382 differentially m6A-methylated genes (DMGs) were identified. 3186 genes showed significant changes in both gene expression and m6A methylation levels upon cadmium exposure, and they were related to a variety of biological processes and gene pathways. Notably, an array of genes associated with antioxidation homeostasis, transmembrane transporter activity and intracellular detoxification processes were significantly enriched, demonstrating that m6A modification may mediate the physiological responses of shrimp to cadmium toxicity via regulating ROS balance, Cd2+ transport and toxicity mitigation. The study would contribute to a deeper understanding of the evolutionary and functional significance of m6A methylation to the physiological resilience of decapod crustaceans to heavy metal toxicants.
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Affiliation(s)
- Zhixiang Yuan
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yiguo Lei
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Boquan Wan
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Miao Yang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yue Jiang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Changxu Tian
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhongduo Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang 524088, China
| | - Wei Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang 524088, China.
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2
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Yee-Duarte JA, Arellano-Martínez M, Roldán-Wong NT, Kidd KA, Ceballos-Vázquez BP. Reduction in reproductive activity from degeneration of testicular follicles in Megapitaria squalida (Mollusca: Bivalvia) exposed to metal pollution in the Gulf of California. MARINE POLLUTION BULLETIN 2024; 205:116648. [PMID: 38917499 DOI: 10.1016/j.marpolbul.2024.116648] [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: 11/02/2023] [Revised: 02/20/2024] [Accepted: 06/20/2024] [Indexed: 06/27/2024]
Abstract
Over a reproductive cycle, the prevalence and intensity of degeneration of testicular follicles in Megapitaria squalida collected from the mining port of Santa Rosalia (a highly metal-polluted area), and San Lucas (a less polluted site), Gulf of California, Mexico, were evaluated. At San Lucas, most individuals had a typical testicular structure, and degeneration of testicular follicles was present in 9.5 % of spawning organisms. In contrast, at Santa Rosalia, 68 % of males, mainly in the ripe stage, had testicular degeneration (72 % severe intensity, mostly in medium and large-sized). Degeneration was characterized by intense hemocyte infiltration, identified as dense masses with numerous melanized cells in the follicle lumen. In both sites, males with testicular follicles degeneration had a lower condition index compared to males without degeneration. Degeneration of testicular follicles before spawning compromises and decreases the reproductive activity of M. squalida males at Santa Rosalia, which may ultimately affect the population sustainability.
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Affiliation(s)
- Josué Alonso Yee-Duarte
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas. Av. Instituto Politécnico Nacional, s/n Col. Playa Palo de Santa Rita. C.P. 23096, La Paz, Baja California Sur, Mexico; Departamento Académico de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, Carretera al Sur KM 5.5, C.P. 23080, La Paz, Baja California Sur, Mexico
| | - Marcial Arellano-Martínez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas. Av. Instituto Politécnico Nacional, s/n Col. Playa Palo de Santa Rita. C.P. 23096, La Paz, Baja California Sur, Mexico
| | | | - Karen Ann Kidd
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - Bertha Patricia Ceballos-Vázquez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas. Av. Instituto Politécnico Nacional, s/n Col. Playa Palo de Santa Rita. C.P. 23096, La Paz, Baja California Sur, Mexico.
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Abdel-Azeem HH, Mohamed AH, Osman GY, AbdElhafez AR, Sheir SK. The potential ameliorative role of Dimercaptosuccinic acid against the toxicity of Titanium Dioxide Nanoparticles on Caelatura nilotica clams. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2024. [PMID: 39034478 DOI: 10.1002/jez.2848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/23/2024]
Abstract
The prevalent use of nanoparticles has adverse negative effects on biosystems. Subsequently, this study aimed to use Caelatura nilotica to assess the ecotoxicity of TiO2 NPs and how Dimercaptosuccinic acid (DMSA) improves these effects. Two concentrations of TiO2 NPs (25 and 150 µg/L) were used for 28 days. TiO2 NPs bioaccumulation, gonadal weight, gonado-somatic index, and histopathological alterations of gonads were determined. The tissues' accumulation of TiO2 NPs was concentration-time-dependent: it was 78.5 ± 28.93 μg/g dry weight in the exposed clams to 150 µg/L TiO2 NPs after 4 weeks of exposure. The gonadal weight and gonado-somatic index significantly decreased of the exposed group to 150 µg/L TiO2 NPs over the experimental period that they ended with values (1.01 ± 0.57 gm, 19.15 ± 7.75%, respectively). There are some histological alterations in the gonads of C. nilotica such as necrosis, deteriorated connective tissue, increased fibrous tissue, a reduced presence of mature sperms and mature ova, and irregular shapes of testicular/ovarian follicles. When using Dimercaptosuccinic acid (DMSA), this led to a reduction in accumulation of TiO2 NPs by the end of the experiment. So, C. nilotica is a promising model to reflect the adverse nano-toxics. DMSA emerges as a potentially valuable chelating agent that abolishes the negative effects of these nanoparticles.
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Affiliation(s)
- Hoda H Abdel-Azeem
- Department of Zoology, Faculty of Sciences, Menoufia University, Shebeen El-Koom, Egypt
| | - Azza H Mohamed
- Department of Zoology, Faculty of Sciences, Menoufia University, Shebeen El-Koom, Egypt
| | - Gamalat Y Osman
- Department of Zoology, Faculty of Sciences, Menoufia University, Shebeen El-Koom, Egypt
| | | | - Sherin K Sheir
- Department of Zoology, Faculty of Sciences, Menoufia University, Shebeen El-Koom, Egypt
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4
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Elkader HTAEA, Al-Shami AS. Acetylcholinesterase and dopamine inhibition suppress the filtration rate, burrowing behaviours, and immunological responses induced by bisphenol A in the hemocytes and gills of date mussels, Lithophaga lithophaga. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 272:106971. [PMID: 38843741 DOI: 10.1016/j.aquatox.2024.106971] [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: 01/19/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 06/15/2024]
Abstract
Bisphenol A (BPA), a common industrial chemical with estrogenic activity, has recently gained attention due to its well-documented negative effects on humans and other organisms in the environment. The potential immunotoxicity and neurotoxicity of BPA remain poorly understood in marine invertebrate species. Therefore, the impacts of exposure to BPA on a series of behaviours, immune responses, oxidative stress, neural biomarkers, histology, and the ultrastructure of gills were investigated in the date mussel, Lithophaga lithophaga. After 28 days of exposure to 0.25, 1, 2, and 5 µg/L BPA, hemolymphs from controls and exposed date mussels were collected, and the effects of BPA on immunological parameters were evaluated. Moreover, oxidative stress and neurochemical levels were measured in the gills of L. lithophaga. BPA reduced filtration rates and burrowing behaviour, whereas a 2 µg/L BPA resulted in an insignificant increase after 24 h. The exposure of date mussels to BPA significantly increased total hemocyte counts, a significant reduction in the diameter and phagocytosis of hemocytes, as well as gill lysozyme level. BPA increased lipid peroxidation levels and SOD activity in gills exposed to 2 and 5 µg/L BPA, but decreased GSH levels and SOD activity in 0.25 and 1 µg/L BPA-treated date mussels. Dose-dependent dynamics were observed in the inhibition of acetylcholinesterase activity and dopamine levels. Histological and scanning electron microscope examination revealed cilia erosion, necrosis, inflammation, and hyperplasia formation in the gills. Overall, our findings suggest a relationship between BPA exposure and changes in the measured immune parameters, oxidative stress, and neurochemical disturbances, which may be factored into the mechanisms underlying BPA toxicity in marine molluscs, providing a scientific foundation for marine BPA risk assessment and indicating immunosuppression in BPA-exposed date mussels.
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Affiliation(s)
| | - Ahmed S Al-Shami
- Biotechnology Department, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
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Garcia C, Charles M, Chollet B, Nadeau A, Serpin D, Quintric L, Pépin JF, Houssin M, Lupo C. Understanding the role of Francisella halioticida in mussel mortalities in France: an integrative approach. DISEASES OF AQUATIC ORGANISMS 2024; 158:81-99. [PMID: 38661140 DOI: 10.3354/dao03782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Since 2014, mass mortalities of mussels Mytilus spp. have occurred in production areas on the Atlantic coast of France. The aetiology of these outbreaks remained unknown until the bacterium Francisella halioticida was detected in some mussel mortality cases. This retrospective study was conducted to assess the association between F. halioticida and these mussel mortalities. Mussel batches (n = 45) from the Atlantic coast and English Channel were selected from archived individual samples (n = 863) collected either during or outside of mortality events between 2014 and 2017. All mussels were analysed by real-time PCR assays targeting F. halioticida; in addition, 185 were analysed using histological analysis and 178 by 16S rRNA metabarcoding. F. halioticida DNA was detected by real-time PCR and 16S rRNA metabarcoding in 282 and 34 mussels, respectively. Among these individuals, 82% (real-time PCR analysis) and 76% (16S rRNA metabarcoding analysis) were sampled during a mortality event. Histological analyses showed that moribund individuals had lesions mainly characterized by necrosis, haemocyte infiltration and granulomas. Risk factor analysis showed that mussel batches with more than 20% of PCR-positive individuals were more likely to have been sampled during a mortality event, and positive 16S rRNA metabarcoding batches increased the strength of the association with mortality by 11.6 times. The role of F. halioticida in mussel mortalities was determined by reviewing the available evidence. To this end, a causation criteria grid, tailored to marine diseases and molecular pathogen detection tools, allowed more evidence to be gathered on the causal role of this bacterium in mussel mortalities.
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Affiliation(s)
- Céline Garcia
- Ifremer, ASIM Adaptation et Santé des Invertébrés Marins, F-17390 La Tremblade, France
| | | | - Bruno Chollet
- Ifremer, ASIM Adaptation et Santé des Invertébrés Marins, F-17390 La Tremblade, France
| | - Aurélie Nadeau
- Ifremer, ASIM Adaptation et Santé des Invertébrés Marins, F-17390 La Tremblade, France
| | - Delphine Serpin
- Ifremer, ASIM Adaptation et Santé des Invertébrés Marins, F-17390 La Tremblade, France
| | - Laure Quintric
- Ifremer, IRSI, SEBIMER Service Bio-informatique d'Ifremer, 29280 Plouzané, France
| | | | | | - Coralie Lupo
- Ifremer, ASIM Adaptation et Santé des Invertébrés Marins, F-17390 La Tremblade, France
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Zhan J, Sun T, Wang X, Wu H, Yu J. Meta-analysis reveals the species-, dose- and duration-dependent effects of cadmium toxicities in marine bivalves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160164. [PMID: 36395852 DOI: 10.1016/j.scitotenv.2022.160164] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Cadmium (Cd) is a typical pollutant in marine environment. Increasing studies have focused on the toxicological effects of Cd in marine bivalves. However, there were many conflicting findings of toxicological effects of Cd in marine bivalves. An integrated analysis performed on the published data of Cd toxicity in marine bivalves is still absent. In this study, a meta-analysis was performed on the toxic endpoints in bivalves exposed to aqueous-phase Cd from 87 studies screened from 1519 papers. Subgroup analyses were conducted according to the categories of species, tissue, exposure dose and duration. The results showed significant species-, duration- and dose-dependent responses in bivalves to aqueous-phase Cd exposure. In details, clams were more sensitive to Cd than oysters, mussels and scallops, indicated by the largest effect size in clams. Gill, hepatopancreas and hemolymph were top three tissues used to indicate Cd-induced toxicity and did not present a significant tissue-specific manner among them. With regard to toxicological effect subgroups, oxidative stress and detoxification were top two subgroups indicating Cd toxicities. Detoxification and genotoxicity subgroups presented higher response magnitudes. What is more, toxicological effect subgroups presented multiple dose- and duration-dependent curves. Oxidative stress and genotoxicity related endpoints presented significant increase trends with Cd exposure dose and were preferable biomarkers to marine Cd pollution. Detoxification and energy metabolism related endpoints showed inverted U-shaped and U-shaped dose-response curves, both of which could be explained by hormesis. The linear decrease in oxidative stress and energy metabolism related endpoints over time suggested their involvement into the adaptive mechanism in bivalves. Overall, this study provided not only a better understanding the responsive mechanisms of marine bivalves to Cd stress, but also a selection reference for biomarkers to aqueous-phase Cd pollution in marine environment.
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Affiliation(s)
- Junfei Zhan
- Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong, The Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, PR China
| | - Tao Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China
| | - Xuehong Wang
- Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong, The Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, PR China
| | - Huifeng Wu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China.
| | - Junbao Yu
- Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong, The Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, PR China.
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Doria HB, Hannappel P, Pfenninger M. Whole genome sequencing and RNA-seq evaluation allowed to detect Cd adaptation footprint in Chironomus riparius. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 819:152843. [PMID: 35033566 DOI: 10.1016/j.scitotenv.2021.152843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Evolutionary adaptation and phenotypic plasticity are important processes on how organisms respond to pollutant exposure. We dissected here the contribution of both processes to increased tolerance in Chironomus riparius to cadmium (Cd) exposure in a multi-generation experiment and inferred the underlying genomic basis. We simulated environmentally realistic conditions by continuously increasing contaminant concentration in six replicates initiated with 1000 larvae each, three pre-exposed to Cd and three not exposed to Cd (no-Cd) over eight generations. We measured life-cycle traits, transcriptomic responses and genome-wide allele frequency changes from this evolve and resequencing (E&R) experiment. Overall, life cycle tests revealed little phenotypic adaptation to Cd exposure, but a slightly increase in survival in the first larval stage was observed. Population genomic analyses showed a strong genome-wide selective response in all replicates, highlighting two main biological functions involved in development and growth of the chironomids. Emphasizing that laboratory conditions continually exert selective pressure. However, the integration of the transcriptomic to the genomic data allowed to distinguish pathways specifically selected by the Cd exposure related to microtubules and organelles and cellular movement. Those pathways could be functionally related to an excretion of metals. Thus, our results indicate that genetic adaptation to Cd in C. riparius can happen within few generations under an environmentally relevant exposure scenario, but substantial phenotypic tolerance might take more time to arise. With our approach, we introduce an experimental setup to fill the existing gap in evolutionary ecotoxicology to investigate these early signs of genetic adaptation.
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Affiliation(s)
- Halina Binde Doria
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany; Department of Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany.
| | - Pauline Hannappel
- Department of Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany
| | - Markus Pfenninger
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany; Department of Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany; Institute for Molecular and Organismic Evolution, Johannes Gutenberg University, Johann-Joachim-Becher-Weg 7, 55128 Mainz, Germany
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8
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Essawy AE, Sherif SSE, Osman GY, Morshedy RME, Al-Nasser AS, Sheir SK. Immune responses, DNA damage and ultrastructural alterations of gills in the marine mussel Lithophaga lithophaga exposed to CuO nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:15800-15815. [PMID: 34632550 DOI: 10.1007/s11356-021-16889-6] [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: 02/16/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Nanoparticle (NP) pollution is a worldwide problem. Copper oxide nanoparticles (CuO NPs) are one of the most used NPs in a variety of applications, which results in their increased release into the marine environment. In the present work, the marine mussel Lithophaga lithophaga was used as a model organism to evaluate the toxic effects of CuO NPs following 28 days of exposure to sub-lethal concentrations (5 and 20 μg/L). The time points were 1 day of exposure to assess the cell viability, phagocytosis in mussel haemocytes and genotoxicity (DNA damage in gills), 1, 14 and 28 days of exposure to evaluate copper concentrations in water and gills, as well as metallothionein concentration in gills, while gill histology and SEM examination were done after 28 days of exposure. The results indicated that the accumulation of CuO NPs in gills increased with concentration and time. Mussel exposure to CuO NPs increased neutral red uptake. However, the phagocytic abilities decreased in haemocytes with increased concentration. CuO NPs caused DNA damage in the gills even at low concentrations (5 µg/L). CuO NPs caused histopathological alterations in gills, such as brown cell accumulation, necrosis, dwarfism of filaments and ciliary erosion. In conclusion, exposure of the mussel L. lithophaga to CuO NPs led to concentration- and time-dependent responses for all the examined biomarkers. Thus, L. lithophaga may be used as a bioindicator organism in the assessment of CuO NP toxicity.
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Affiliation(s)
- Amina E Essawy
- Zoology Department, University of Alexandria, Alexandria, Egypt
| | | | - Gamalat Y Osman
- Invertebrates Division, Zoology Department, University of Menoufia, Shibin el Kom, Egypt
| | | | - Abir S Al-Nasser
- Department of Biology, Faculty of Sciences, University of Jeddah, Jeddah, Saudi Arabia
| | - Sherin K Sheir
- Invertebrates Division, Zoology Department, University of Menoufia, Shibin el Kom, Egypt.
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Can insecticide-free clean water regenerate the midgut epithelium of the freshwater shrimp after dimethoate treatment? Micron 2021; 155:103162. [DOI: 10.1016/j.micron.2021.103162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 10/07/2021] [Accepted: 10/07/2021] [Indexed: 01/18/2023]
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Irnidayanti Y. Toxicological Analysis of Gonad Development in Green Mussels ( Perna viridis) in Jakarta Bay, Indonesia. Pak J Biol Sci 2021; 24:394-400. [PMID: 34486325 DOI: 10.3923/pjbs.2021.394.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
<b>Background and Objective:</b> The accumulation of heavy metals such as cadmium and lead in mussels is very high compared to that in another marine biota. The mussels are sessile, widely distributed filter-feeding organisms, with the ability to sequester many lipophilic organic compounds, absorb anything in their surroundings. The very low mobility allows heavy metal bioaccumulation to occur and cannot avoid pollutants, which increase over time. This bioaccumulation can be toxic to mussels. This study aimed to evaluate the effect of different toxic chemicals and histological changes in green mussels. <b>Materials and Methods:</b> All archive gonad sample of green mussels in 2015 was fixed in paraformaldehyde 4% solution and were sliced by a rotary microtome at 8 μm thickness and finally, the slides were stained with a solution of hematoxylin-eosin. <b>Results:</b> The obtained results demonstrated that developmental disorders in the testes are characterized by the arrangement of follicle cells in a relatively less dense state and some follicles are not fully filled with spermatozoa. It means that the male gonad samples of green mussels in the port of Muara Angke undergoing toxicity and the process of gonad developmental was disrupted. <b>Conclusion:</b> The effects of toxicity of the male gonad of green mussels were more sensitive and were more susceptible than the female gonad of the green mussels.
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11
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Doria HB, Pfenninger M. A multigenerational approach can detect early Cd pollution in Chironomus riparius. CHEMOSPHERE 2021; 262:127815. [PMID: 32768752 DOI: 10.1016/j.chemosphere.2020.127815] [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: 05/15/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) is a non-essential highly toxic metal and its presence in the environment has been a concern over the years. On the present study we adopt the spiked water exposure scenario to study early Cd contamination across five generations of the model organism Chironomus riparius. Animals were, at the beginning of each generation, submitted to 0, 1, 3.2, 10, 32 and 100 μg/L of Cd. Classical endpoints like total emergence, EmT50, fertility and the integrative fitness measure, population growth rate (PGR), were calculated at each generation. Results could demonstrate that exposure to brief and low Cd concentrations can affect all the measured endpoints and, therefore, initial Cd pollution in previously unpolluted sites can be detected after just five consecutive generations. Importantly, at 100 μg/L of Cd fertility was greatly impaired after three generations. Also, PGR calculation is a sensitive tool for monitoring early pollution of Cd. Yet, no adaptation to Cd over five generations could be observed on the present experimental setup.
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Affiliation(s)
- Halina Binde Doria
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325, Frankfurt Am Main, Germany.
| | - Markus Pfenninger
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325, Frankfurt Am Main, Germany; Department of Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325, Frankfurt Am Main, Germany; Institute for Molecular and Organismic Evolution, Johannes Gutenberg University, Johann-Joachim-Becher-Weg 7, 55128, Mainz, Germany
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12
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Rost-Roszkowska M, Poprawa I, Chajec Ł, Chachulska-Żymełka A, Wilczek G, Wilczek P, Student S, Skowronek M, Nadgórska-Socha A, Leśniewska M. Influence of soil contaminated with cadmium on cell death in the digestive epithelium of soil centipede Lithobius forficatus (Myriapoda, Chilopoda). THE EUROPEAN ZOOLOGICAL JOURNAL 2020. [DOI: 10.1080/24750263.2020.1757168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- M. Rost-Roszkowska
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - I. Poprawa
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - Ł. Chajec
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - A. Chachulska-Żymełka
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - G. Wilczek
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - P. Wilczek
- Bioengineering Laboratory, Heart Prosthesis Institute, Zabrze, Poland
| | - S. Student
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Gliwice, Poland
| | - M. Skowronek
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - A. Nadgórska-Socha
- Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - M. Leśniewska
- Department of General Zoology, Adam Mickiewicz University, Poznań, Poland
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Eggermont M, Cornillie P, Dierick M, Adriaens D, Nevejan N, Bossier P, Van den Broeck W, Sorgeloos P, Defoirdt T, Declercq AM. The blue mussel inside: 3D visualization and description of the vascular-related anatomy of Mytilus edulis to unravel hemolymph extraction. Sci Rep 2020; 10:6773. [PMID: 32317671 PMCID: PMC7174403 DOI: 10.1038/s41598-020-62933-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/19/2020] [Indexed: 12/28/2022] Open
Abstract
The blue mussel Mytilus edulis is an intensely studied bivalve in biomonitoring programs worldwide. The lack of detailed descriptions of hemolymph-withdrawal protocols, particularly with regard to the place from where hemolymph could be perfused from, raises questions regarding the exact composition of aspirated hemolymph and does not exclude the possibility of contamination with other body-fluids. This study demonstrates the use of high resolution X-ray computed tomography and histology combined with 3D-reconstruction using AMIRA-software to visualize some important vascular-related anatomic structures of Mytilus edulis. Based on these images, different hemolymph extraction sites used in bivalve research were visualized and described, leading to new insights into hemolymph collection. Results show that hemolymph withdrawn from the posterior adductor muscle could be extracted from small spaces and fissures between the muscle fibers that are connected to at least one hemolymph supplying artery, more specifically the left posterior gastro-intestinal artery. Furthermore, 3D-reconstructions indicate that puncturing hemolymph from the pericard, anterior aorta, atria and ventricle in a non-invasive way should be possible. Hemolymph withdrawal from the heart is less straightforward and more prone to contamination from the pallial cavity. This study resulted simultaneously in a detailed description and visualization of the vascular-related anatomy of Mytilus edulis.
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Affiliation(s)
- Mieke Eggermont
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Pieter Cornillie
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Manuel Dierick
- Centre for X-ray Tomography (UGCT), Department Physics and Astronomy, Proeftuinstraat 86/N12, 9000, Gent, Belgium
- XRE nv. Bollebergen 2B box 1, 9052, Ghent, Belgium
| | - Dominique Adriaens
- Research Group Evolutionary Morphology of Vertebrates, Ghent University, K.L. Ledeganckstraat 35, 9000, Ghent, Belgium
| | - Nancy Nevejan
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Peter Bossier
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Wim Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Patrick Sorgeloos
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Tom Defoirdt
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Annelies Maria Declercq
- Laboratory of Aquaculture and Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
- Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
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14
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do Amaral QDF, Da Rosa E, Wronski JG, Zuravski L, Querol MVM, Dos Anjos B, de Andrade CFF, Machado MM, de Oliveira LFS. Golden mussel (Limnoperna fortunei) as a bioindicator in aquatic environments contaminated with mercury: Cytotoxic and genotoxic aspects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 675:343-353. [PMID: 31030141 DOI: 10.1016/j.scitotenv.2019.04.108] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
This study evaluated the Limnoperna fortunei (golden mussel) as a bioindicator of cytotoxicity and genotoxicity in aquatic environments contaminated by heavy metals. Five groups of 50 subjects each were exposed to different concentration of mercuric chloride (HgCl2) (0.001 mg/L, group I; 0.005 mg/L, group II; 0.01 mg/L, group II; 0.02 mg/L, group IV; and 0.1 mg/L, group V). The control group for both chronic and acute treatment did not receive HgCl2. For chronic exposure, the respective groups were placed in aquaria with water contaminated with the above concentrations of HgCl2. For acute exposure, the different concentrations of HgCl2 were injected into the posterior adductor muscle of the individuals belonging to the aforementioned groups. The biological matrix used in the tests was the whole body muscle. Tests (cell viability assay, alkaline comet test; enumeration of micronuclei and necrotic cells, quantification of Hg content in tissues and water, and histopathological analysis of tissues), were carried out on the 7th, 15th, and 30th treatment days or 2 h after injection. Our results demonstrated that L. fortunei showed cell damage in both chronic and acute exposure groups. Significant DNA damage was observed at both the 15th (0.1 mg/L) and 30th (0.01-0.1 mg/L) days of chronic exposure. However, in acute treatment all concentrations induced DNA breaks. The presence of necrosis increased at all concentrations tested for both acute and chronic exposure. Tissue mercury retention on the 15th day was higher than on the 30th day of exposure, while in the same period, there was a decrease in the mercury content of aquarium water. Taking the data together, it is concluded that L. fortunei as a possible bioindicator of the quality of aquatic environments.
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Affiliation(s)
| | - Emanoeli Da Rosa
- Graduate Program in Pharmaceutical Sciences, Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, Brazil
| | - Júlia Gabriela Wronski
- Veterinary Pathology Laboratory, HUVET, Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, Brazil
| | - Luísa Zuravski
- Graduate Program in Biochemistry, Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, Brazil
| | | | - Bruno Dos Anjos
- Veterinary Pathology Laboratory, HUVET, Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, Brazil
| | | | - Michel Mansur Machado
- Graduate Program in Pharmaceutical Sciences, Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, Brazil
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Yee-Duarte JA, Ceballos-Vázquez BP, Arellano-Martínez M, Camacho-Mondragón MA, Uría-Galicia E. Histopathological Alterations in the Gonad of Megapitaria squalida (Mollusca: Bivalvia) Inhabiting a Heavy Metals Polluted Environment. JOURNAL OF AQUATIC ANIMAL HEALTH 2018; 30:144-154. [PMID: 29710385 DOI: 10.1002/aah.10015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 01/15/2018] [Indexed: 06/08/2023]
Abstract
The gonadal health status of the chocolate clam Megapitaria squalida collected from the Santa Rosalía mining port and San Lucas beach (reference site), Gulf of California, Mexico, was assessed through histological analysis of the reproductive tissue, from which the histopathological alteration index (HAI) was determined. In addition, copper and iron accumulation in tissue was revealed using histochemical techniques. Our results showed a large presence of copper (30%) and iron (45%) only in the gonad tissue of clams from Santa Rosalía, in which histopathological alterations observed were inflammatory responses, degenerative-progressive processes, cell death, and response to infectious agents. The HAI was significantly higher in Santa Rosalía specimens (mean ± SE, 72.18 ± 6.12) than in San Lucas clams (4.60 ± 1.07). At San Lucas beach, a higher prevalence of histopathological alterations occurred in clams in the spent stage (43.2%) and in autumn (18.4%) and winter (17.8%) in concordance with the normal reproductive rest period, whereas at Santa Rosalía a higher prevalence occurred in clams at the ripe stage (76.9%) and in spring (83.7%). In conclusion, our results showed the deteriorated health condition of gonads in M. squalida from the Santa Rosalía mining port, which suggests there is a relationship with chronic exposure to local high levels of heavy metals. The high prevalence and intensity of histopathological alterations in the gonad suggest a strong adverse effect on gametogenesis, gamete quality, and, ultimately, in the reproductive potential of M. squalida at this site.
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Affiliation(s)
- Josué Alonso Yee-Duarte
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita, C.P. 23096, La Paz, Baja California Sur, México
| | - Bertha Patricia Ceballos-Vázquez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita, C.P. 23096, La Paz, Baja California Sur, México
| | - Marcial Arellano-Martínez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita, C.P. 23096, La Paz, Baja California Sur, México
| | - Marian Alejandra Camacho-Mondragón
- Instituto Nacional de Pesca y Acuacultura, Centro Regional de Investigación Pesquera La Paz, Carretera a Pichilingue Km 1, Col. Esterito, C.P. 23020, La Paz, Baja California Sur, México
| | - Esther Uría-Galicia
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Unidad Profesional Lázaro Cárdenas, Prolongación Manuel Carpio y Plan de Ayala s/n, Col. Santo Tomás, C.P. 11340, Delegación Miguel Hidalgo, Ciudad de México, México
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16
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Shi W, Guan X, Han Y, Guo C, Rong J, Su W, Zha S, Wang Y, Liu G. Waterborne Cd 2+ weakens the immune responses of blood clam through impacting Ca 2+ signaling and Ca 2+ related apoptosis pathways. FISH & SHELLFISH IMMUNOLOGY 2018; 77:208-213. [PMID: 29609026 DOI: 10.1016/j.fsi.2018.03.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Exposure to heavy metals such as Cadmium (Cd) may exert detrimental impacts on the immune responses of marine bivalve species. However, the immunotoxicity of Cd on blood clams remains unknown to date. Furthermore, though Cd2+ is known to compete with calcium (Ca2+) ions for their binding sites in cells and inhibit Ca2+ influx, whether Cd2+ weakens the immune responses of marine bivalves through inducing intracellular Ca2+ disorders still remains unclear. Therefore, the immunotoxicity of Cd2+ at different waterborne Ca2+ concentrations on blood clam, Tegillarca granosa, were investigated in the present study. Results obtained demonstrated that the total number, phagocytic activity, and red granulocytes ratio of the haemocytes were all significantly reduced after 10 days exposure of individuals to 25 μg/L Cd2+. However, when the waterborne Ca2+ concentrations were elevated by 10% and 20% (approximately 370 and 410 mg/L, respectively), mitigation effects on the immune responses of individuals were detected. In addition, though the expressions of genes from the Ca2+ signaling and Ca2+-related apoptosis pathways were significantly altered by Cd2+ exposure, the expression patterns of these genes were similar to that of the control when the waterborne Ca2+ concentrations were elevated, suggesting a relieving effect of waterborne Ca2+ on Cd2+ induced toxicity to haemocytes. The results obtained in the present study revealed that waterborne Cd2+ may hamper the immune responses of T. granosa through influencing Ca2+ signaling and Ca2+-related apoptosis pathways, which can be partially mitigated by elevating the waterborne Ca2+ concentrations.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xiaofan Guan
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Cheng Guo
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Jiahuan Rong
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Wenhao Su
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shanjie Zha
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yichen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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17
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Li J, Schiavo S, Xiangli D, Rametta G, Miglietta ML, Oliviero M, Changwen W, Manzo S. Early ecotoxic effects of ZnO nanoparticle chronic exposure in Mytilus galloprovincialis revealed by transcription of apoptosis and antioxidant-related genes. ECOTOXICOLOGY (LONDON, ENGLAND) 2018; 27:369-384. [PMID: 29441433 DOI: 10.1007/s10646-018-1901-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/13/2018] [Indexed: 06/08/2023]
Abstract
Recently, China became one of the largest nanomaterial markets in the world. The wide use of ZnO nanoparticles in a number of products implies an increasing release in marine environment and consequently the evaluation of the potential effects upon marine organisms largely cultured in China for commercial purposes, such as invertebrate bivalves is a current need. To this aim, survival, bioaccumulation, and transcription pattern of key genes, p53, PDRP, SOD, CAT, and GST, involved in DNA damage/repair and antioxidation, in Mytilus galloprovincialis digestive gland, exposed to ZnO NPs (<100 nm) and ZnO bulk (150-200 nm) for 4 weeks, were evaluated. ZnSO4 was also assessed to appraise the role of zinc ions. Starting from 72 h, increasing mortality values along the exposure time were observed for all ZnO compounds. The highest difference was evident after 28 d when NPs resulted three times more toxic than bulk, (LC50) = 0.78 mg Zn/L (confidence limits: 0.64, 1.00) and 2.62 mg Zn/L (confidence limits: 1.00, 4.00), respectively. For ZnSO4 the (LC50) was always the lowest reaching the minimum value at 28 d 0.25 mg Zn/L (confidence limits: 0.10-0.40). Digestive gland showed higher uptake rate of ionic Zn respect to ZnO NPs and bulk during the first three days of exposure. In particular at the end of the exposure time (28 d) at 1 mg Zn/L the rank of Zn uptake rate was Zinc ion > ZnO NPs > ZnO bulk. The relative expression of investigated genes evidenced that distinct actions of apoptosis and antioxidation occurred in M. galloprovincialis exposed to ZnO NPs with a peculiar pattern dependent on exposure time and concentration. Application of the qRT-PCR technique revealed evidence of sensitivity to the nanomaterial since the first time of exposure.
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Affiliation(s)
- Jiji Li
- Università degli studi di Napoli "Federico II", Parco Gussone 1, 80055, Portici, Naples, Italy
- Enea CR Portici, P. le E. Fermi, 1, 80055, Portici, Naples, Italy
- National Engineering Research Center of Maricultural Facilities of China, Zhejiang Ocean University, Haida South Road 1, 316004, Zhoushan, Zhejiang, China
| | - Simona Schiavo
- Università degli studi di Napoli "Federico II", Parco Gussone 1, 80055, Portici, Naples, Italy
- National Engineering Research Center of Maricultural Facilities of China, Zhejiang Ocean University, Haida South Road 1, 316004, Zhoushan, Zhejiang, China
| | - Dong Xiangli
- National Engineering Research Center of Maricultural Facilities of China, Zhejiang Ocean University, Haida South Road 1, 316004, Zhoushan, Zhejiang, China
| | | | | | - Maria Oliviero
- Enea CR Portici, P. le E. Fermi, 1, 80055, Portici, Naples, Italy
| | - Wu Changwen
- National Engineering Research Center of Maricultural Facilities of China, Zhejiang Ocean University, Haida South Road 1, 316004, Zhoushan, Zhejiang, China
| | - Sonia Manzo
- Enea CR Portici, P. le E. Fermi, 1, 80055, Portici, Naples, Italy.
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18
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Bertucci A, Pierron F, Thébault J, Klopp C, Bellec J, Gonzalez P, Baudrimont M. Transcriptomic responses of the endangered freshwater mussel Margaritifera margaritifera to trace metal contamination in the Dronne River, France. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:27145-27159. [PMID: 28963680 DOI: 10.1007/s11356-017-0294-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 09/20/2017] [Indexed: 06/07/2023]
Abstract
The freshwater pearl mussel Margaritifera margaritifera is one of the most threatened freshwater bivalves worldwide. In this study, we aimed (i) to study the processes by which water quality might affect freshwater mussels in situ and (ii) to provide insights into the ecotoxicological significance of water pollution to natural populations in order to provide necessary information to enhance conservation strategies. M. margaritifera specimens were sampled in two close sites located upstream or downstream from an illegal dumping site. The renal transcriptome of these animals was assembled and gene transcription determined by RNA-seq. Correlations between transcription levels of each single transcript and the bioaccumulation of nine trace metals, age (estimated by sclerochronology), and condition index were determined in order to identify genes likely to respond to a specific factor. Amongst the studied metals, Cr, Zn, Cd, and Ni were the main factors correlated with transcription levels, with effects on translation, apoptosis, immune response, response to stimulus, and transport pathways. However, the main factor explaining changes in gene transcription appeared to be the age of individuals with a negative correlation with the transcription of retrotransposon-related genes. To investigate this effect further, mussels were classified into three age classes. In young, middle-aged and old animals, transcription levels were mainly explained by Cu, Zn and age, respectively. This suggests differences in the molecular responses of this species to metals during its lifetime that must be better assessed in future ecotoxicology studies.
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Affiliation(s)
| | - Fabien Pierron
- Univ. Bordeaux, UMR EPOC CNRS 5805, 33615, Pessac, France
| | - Julien Thébault
- Université de Brest, Institut Universitaire Européen de la Mer, Laboratoire des sciences de l'environnement marin (LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer), 29280, Plouzané, France
| | - Christophe Klopp
- Plate-forme bio-informatique Genotoul, Mathématiques et Informatique Appliquées de Toulouse, INRA, 31326, Castanet-Tolosan, France
| | - Julie Bellec
- Université de Brest, Institut Universitaire Européen de la Mer, Laboratoire des sciences de l'environnement marin (LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer), 29280, Plouzané, France
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19
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García-Navarro JA, Franco L, Romero D. Differences in the accumulation and tissue distribution of Pb, Cd, and Cu in Mediterranean mussels (Mytilus galloprovincialis) exposed to single, binary, and ternary metal mixtures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:6599-6610. [PMID: 28083738 DOI: 10.1007/s11356-016-8349-7] [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: 09/01/2016] [Accepted: 12/28/2016] [Indexed: 06/06/2023]
Abstract
Heavy metals often accumulate in complex mixtures in the environment and are currently a source of concern in many marine ecosystems. Pb, Cd, and Cu are regarded as priority hazardous metals due to their great persistence, bioaccumulation, and toxicity. The aim of the present study was to investigate the tissue accumulation and distribution of these heavy metals in Mediterranean mussels (Mytilus galloprovincialis) exposed to binary and ternary mixtures of metals as opposed to only single exposures. Heavy metal concentrations in the digestive gland, gills, and the other soft tissues were determined by inductively coupled plasma optical emission spectrometry (ICP-OES), and the distribution of each metal was analyzed according to compartments. The concentrations of Pb, Cd, and Cu increased significantly in the group exposed to the ternary mixture; however, there was no common response pattern to exposure in single and binary mixtures. Above all, the metals concentrated in the digestive gland, although the percentages of each element varied between compartments and varied between tissues according to the treatment.
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Affiliation(s)
- José A García-Navarro
- Área de Toxicología, Facultad de Veterinaria, Campus Regional de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Espinardo, 30071, Murcia, Spain
| | - Lorena Franco
- Área de Toxicología, Facultad de Veterinaria, Campus Regional de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Espinardo, 30071, Murcia, Spain
| | - Diego Romero
- Área de Toxicología, Facultad de Veterinaria, Campus Regional de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Espinardo, 30071, Murcia, Spain.
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Ortiz-Ordoñez E, López-López E, Sedeño-Díaz JE, Uría E, Morales IA, Pérez ME, Shibayama M. Liver histological changes and lipid peroxidation in the amphibian Ambystoma mexicanum induced by sediment elutriates from the Lake Xochimilco. J Environ Sci (China) 2016; 46:156-164. [PMID: 27521947 DOI: 10.1016/j.jes.2015.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 06/07/2015] [Accepted: 06/18/2015] [Indexed: 06/06/2023]
Abstract
Lacustrine sediments accumulate pollutants that input from the lake watershed and can be released to the water column by sediment resuspension; thus, pollutants can change their bioavailability and exert adverse effects to aquatic biota. Shallow-urban lakes are particularly susceptible to receive pollutants from urban discharges and sediment resuspension. Lake Xochimilco, in Mexico City, an urban-shallow lake, faces multiple problems: urban sprawl, overexploitation of aquifers, drying of springs, discharge of wastewater from treatment plants, and sediment resuspension. The aquatic biota living in this ecosystem is continuously exposed to the release of pollutants from the sediments. We assessed the risk that pollutants released from sediments from Lake Xochimilco, Touristic (TZ) and Agriculture zone (AZ), can exert on a native amphibian species of the lake (Ambystoma mexicanum) through exposure bioassays to sediment elutriates. We evaluate alterations in the amphibian by three approaches: biochemical (level of lipid peroxidation, LPO), cellular (ultrastructure) and the liver histology of A. mexicanum and we compare them with a batch control. Additionally, we assessed heavy metals (Pb, Cd and Hg) in elutriates. Elutriates from TZ showed the highest concentrations of the metals assessed. Organisms exposed to sediment elutriates from either study sites showed higher LPO values than control organisms (p<0.05). Organisms exposed to elutriates from the TZ showed the most conspicuous damages: hepatic vasodilation of sinusoids, capillaries with erythrocytes, leukocyte infiltration and cytoplasmic vacuolation in hepatocytes. The biological responses assessed reflected the risk that faces A. mexicanum when is exposed for prolonged periods to sediment resuspension in Lake Xochimilco.
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Affiliation(s)
- Esperanza Ortiz-Ordoñez
- Instituto Politécnico Nacional, Depto. de Formación Básica e Interdisciplinaria, CICS-UST, Av. de los Maestros s/n., Col. Sto. Tomás, México D.F. 11340, México.
| | - Eugenia López-López
- Instituto Politécnico Nacional, Laboratorio de Evaluación de la Salud de Ecosistemas Acuáticos, ENCB, Prol. de Carpio y Plan de Ayala s/n., Col. Sto. Tomás, México D.F. 11340, México.
| | - Jacinto Elías Sedeño-Díaz
- Instituto Politécnico Nacional, Coordinación Politécnica para la Sustentabilidad, Edificio de la Biblioteca Nacional, 3er Piso, Av. Instituto Politécnico Nacional s/n, esq. Wilfrido Massieu, Col. Zacatenco, 07738 México D.F., Mexico
| | - Esther Uría
- Instituto Politécnico Nacional, Laboratorio de Histología, ENCB, Prol. de Carpio y Plan de Ayala s/n., Col. Sto. Tomás, México D.F. 11340, Mexico
| | - Ignacio Andrés Morales
- Unidad de Servicio Académico Acuario, Biología, Facultad de Ciencias, Universidad Autónoma de México, Ciudad Universitaria, 04510 México D.F., México
| | - María Estela Pérez
- Unidad de Servicio Académico Acuario, Biología, Facultad de Ciencias, Universidad Autónoma de México, Ciudad Universitaria, 04510 México D.F., México
| | - Mineko Shibayama
- Laboratorio de Infectómica, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional, No 2508, San Pedro Zacatenco, Delegación Gustavo A. Madero, México D. F. 07360, México, Mexico
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21
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Włostowski T, Kozłowski P, Łaszkiewicz-Tiszczenko B, Oleńska E. Cadmium Accumulation and Pathological Alterations in the Midgut Gland of Terrestrial Snail Helix pomatia L. from a Zinc Smelter Area: Role of Soil pH. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2016; 96:484-489. [PMID: 26868644 PMCID: PMC4799254 DOI: 10.1007/s00128-016-1748-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/01/2016] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to determine whether cadmium (Cd) accumulation and toxicity in the midgut gland of Helix pomatia snails living in a Cd-contaminated area were related to soil pH. Toxic responses in the midgut gland (i.e., increased vacuolization and lipid peroxidation) occurred in H. pomatia snails exhibiting the highest Cd levels in the gland (265-274 µg/g dry wt) and living on acidic soil (pH 5.3-5.5), while no toxicity was observed in snails accumulating less Cd (90 µg/g) and ranging on neutral soil (pH 7.0), despite the fact that total soil Cd was similar in the two cases. The accumulation of Cd in the gland was directly related to the water extractable Cd in soil, which in turn correlated inversely with soil pH, indicating that this factor had a significant effect on tissue Cd. It appeared further that the occurrence of Cd toxicity was associated with low levels of metallothionein in the gland of snails ranging on acidic soil.
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Affiliation(s)
- Tadeusz Włostowski
- Institute of Biology, University of Białystok, Ciołkowskiego 1J, 15-245, Białystok, Poland.
| | - Paweł Kozłowski
- Institute of Biology, University of Białystok, Ciołkowskiego 1J, 15-245, Białystok, Poland
| | | | - Ewa Oleńska
- Institute of Biology, University of Białystok, Ciołkowskiego 1J, 15-245, Białystok, Poland
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Poynton HC, Robinson WE, Blalock BJ, Hannigan RE. Correlation of transcriptomic responses and metal bioaccumulation in Mytilus edulis L. reveals early indicators of stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 155:129-141. [PMID: 25016106 DOI: 10.1016/j.aquatox.2014.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 06/03/2023]
Abstract
Marine biomonitoring programs in the U.S. and Europe have historically relied on monitoring tissue concentrations of bivalves to monitor contaminant levels and ecosystem health. By integrating 'omic methods with these tissue residue approaches we can uncover mechanistic insight to link tissue concentrations to potential toxic effects. In an effort to identify novel biomarkers and better understand the molecular toxicology of metal bioaccumulation in bivalves, we exposed the blue mussel, Mytilus edulis L., to sub-lethal concentrations (0.54 μM) of cadmium, lead, and a Cd+Pb mixture. Metal concentrations were measured in gill tissues at 1, 2, and 4 weeks, and increased linearly over the 4 week duration. In addition, there was evidence that Pb interfered with Cd uptake in the mixture treatment. Using a 3025 sequence microarray for M. edulis, we performed transcriptomic analysis, identifying 57 differentially expressed sequences. Hierarchical clustering of these sequences successfully distinguished the different treatment groups demonstrating that the expression profiles were reproducible among the treatments. Enrichment analysis of gene ontology terms identified several biological processes that were perturbed by the treatments, including nucleoside phosphate biosynthetic processes, mRNA metabolic processes, and response to stress. To identify transcripts whose expression level correlated with metal bioaccumulation, we performed Pearson correlation analysis. Several transcripts correlated with gill metal concentrations including mt10, mt20, and contig 48, an unknown transcript containing a wsc domain. In addition, three transcripts directly involved in the unfolded protein response (UPR) were induced in the metal treatments at 2 weeks and were further up-regulated at 4 weeks. Overall, correlation of tissue concentrations and gene expression responses indicates that as mussels accumulate higher concentrations of metals, initial stress responses are mobilized to protect tissues. However, given the role of UPR in apoptosis, it serves as an early indicator of stress, which once overwhelmed will result in adverse physiological effects.
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Affiliation(s)
- Helen C Poynton
- School for the Environment, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, United States.
| | - William E Robinson
- School for the Environment, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, United States
| | - Bonnie J Blalock
- School for the Environment, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, United States
| | - Robyn E Hannigan
- School for the Environment, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, United States
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Leung PTY, Ip JCH, Mak SST, Qiu JW, Lam PKS, Wong CKC, Chan LL, Leung KMY. De novo transcriptome analysis of Perna viridis highlights tissue-specific patterns for environmental studies. BMC Genomics 2014; 15:804. [PMID: 25239240 PMCID: PMC4190305 DOI: 10.1186/1471-2164-15-804] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/26/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The tropical green-lipped mussel Perna viridis is a common biomonitor throughout the Indo-Pacific region that is used for environmental monitoring and ecotoxicological investigations. However, there is limited molecular data available regarding this species. We sought to establish a global transcriptome database from the tissues of adductor muscle, gills and the hepatopancreas of P. viridis in an effort to advance our understanding of the molecular aspects involved during specific toxicity responses in this sentinel species. RESULTS Illumina sequencing results yielded 544,272,542 high-quality filtered reads. After de novo assembly using Trinity, 233,257 contigs were generated with an average length of 1,264 bp and an N50 length of 2,868 bp; 192,879 assembled transcripts and 150,111 assembled unigenes were obtained after clustering. A total of 93,668 assembled transcripts (66,692 assembled genes) with putative functions for protein domains were predicted based on InterProScan analysis. Based on similarity searches, 44,713 assembled transcripts and 25,319 assembled unigenes were annotated with at least one BLAST hit. A total of 21,262 assembled transcripts (11,947 assembled genes) were annotated with at least one well-defined Gene Ontology (GO) and 5,131 assembled transcripts (3,181 assembled unigenes) were assigned to 329 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The quantity of assembled unigenes and transcripts obtained from male and female mussels were similar but varied among the three studied tissues, with the highest numbers recorded in the gills, followed by the hepatopancreas, and then the adductor muscle. Multivariate analyses revealed strong tissue-specific patterns among the three different tissues, but not between sexes in terms of expression profiles for annotated genes in various GO terms, and genes associated with stress responses and degradation of xenobiotics. The expression profiles of certain selected genes in each tissue type were further validated using real-time quantitative polymerase chain reaction assays and a similar tissue-specific trend was seen. CONCLUSIONS The extensive sequence data generated from this study will provide a valuable molecular resource for facilitating environmental studies with P. viridis, and highlight the importance of tissue-specific approaches in the future.
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Affiliation(s)
| | | | | | | | | | | | | | - Kenneth M Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China.
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Leung PTY, Park TJ, Wang Y, Che C, Leung KM. Isoform-specific responses of metallothioneins in a marine pollution biomonitor, the green-lipped mussel Perna viridis
, towards different stress stimulations. Proteomics 2014; 14:1796-807. [DOI: 10.1002/pmic.201300439] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 04/01/2014] [Accepted: 05/12/2014] [Indexed: 01/26/2023]
Affiliation(s)
- Priscilla T. Y. Leung
- The Swire Institute of Marine Science and School of Biological Sciences; The University of Hong Kong, Pokfulam; Hong Kong P. R. China
| | - T. J. Park
- The Swire Institute of Marine Science and School of Biological Sciences; The University of Hong Kong, Pokfulam; Hong Kong P. R. China
| | - Yu Wang
- Department of Pharmacology & Pharmacy; The University of Hong Kong, Pokfulam; Hong Kong P. R. China
| | - C.M. Che
- Department of Chemistry; The University of Hong Kong, Pokfulam; Hong Kong P. R. China
| | - Kenneth M.Y. Leung
- The Swire Institute of Marine Science and School of Biological Sciences; The University of Hong Kong, Pokfulam; Hong Kong P. R. China
- State Key Laboratory in Marine Pollution; City University of Hong Kong, Kowloon; Hong Kong P. R. China
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Amachree D, Moody AJ, Handy RD. Comparison of intermittent and continuous exposures to cadmium in the blue mussel, Mytilus edulis: accumulation and sub-lethal physiological effects. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 95:19-26. [PMID: 23747128 DOI: 10.1016/j.ecoenv.2013.04.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/23/2013] [Accepted: 04/25/2013] [Indexed: 05/22/2023]
Abstract
Little is known about the bioaccumulation responses of shellfish to metals during intermittent compared to continuous exposure. There is also the concern that the toxicity of intermittent events may not be the same as that from the steady-state continuous exposures. The aim of the present study was to determine whether there was any difference between cadmium (Cd) accumulation, or Cd-dependent biological responses, in tissues of blue mussels (Mytilus edulis) during intermittent compared to continuous Cd exposure. Tissues and hemolymph were collected from M. edulis exposed for 14 days to either control (no added Cd, only seawater), or 50 µg/l Cd as CdCl2 in continuous or intermittent profile (2 day exposure, 2 days in clean seawater alternately); and sub-lethal responses examined using a suite of assays including total glutathione, thiobarbituric acid reactive substances (TBARS), neutral red retention, total hemocyte counts, hemolymph Na(+) and K(+), plasma glucose and histopathology. A time-dependent accumulation of the Cd was observed in tissues of mussels after continuous exposure, while the intermittent exposure showed step-wise changes in the hemolymph and gonad. Tissue Cd concentration in the continuous exposure was significantly increased (≥2 fold) for most tissues compared to the intermittent exposure. No clear differences were seen between the continuous and intermittent exposure for most end points measured apart from a 2 fold significant increase in hemocyte infiltration in the digestive gland of the continuous exposure compared to the intermittent exposure. Overall, the data showed that the Cd accumulation was generally greater in the continuous exposure regime, but despite this, most of the biological responses being similar in both regimes.
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Affiliation(s)
- Dokuboba Amachree
- Ecotoxicology Research and Innovation Centre, School of Biomedical and Biological Sciences, University of Plymouth, Plymouth, UK
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