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Dong L, Yu J, Wang H, Yue X, Liu B. Transcriptomic insights into vibrio-induced mortality in the clam Meretrix petechialis under high temperature. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 50:101226. [PMID: 38522379 DOI: 10.1016/j.cbd.2024.101226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/26/2024]
Abstract
In this study, we investigate the mortality of the clam Meretrix petechialis facing a vibrio challenge under different temperatures and the underlying molecular mechanisms. Our experiment distinctly revealed that clam mortality was predominantly observed under high temperature, highlighting the critical impact of thermal stress on clam susceptibility to infection. Using RNA-seq, we further compared the global transcriptional response to vibrio in clam gills between high and low temperatures. Compared to other groups, the differentially expressed genes in vibrio-challenged group at high temperature associated with immunity, oxidative stress, and membrane transport. Key results show a weakened immune response in clams at high temperature, especially in the TNF signaling pathway, and a decrease in membrane transport efficiency, notably in SLC proteins. Additionally, high temperature enhanced pro-inflammatory related unsaturated fatty acid metabolism, leading to increased oxidative damage. This was further evidenced by our biochemical assays, which showed significantly higher levels of lipid peroxidation and protein carbonylation in clams at high temperature, indicating heightened oxidative damage. RT-PCR validation of selected DEGs corroborated the RNA-seq findings. Our findings contribute to the understanding of more frequent shellfish mortality in summer, emphasizing the role of temperature in pathogen response, elucidating the molecular mechanisms underlying the synergistic effect of pathogen and high temperature stresses. The key genes identified provide potential targets for resistance-assisted breeding. This research has significant implications for bivalve aquaculture and their physiology, particularly in light of global climate changes affecting marine ecosystems.
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Affiliation(s)
- Li Dong
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China; CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Jiajia Yu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Hongxia Wang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Xin Yue
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Baozhong Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, Wuhan 430072, China
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Galià-Camps C, Junkin L, Borrallo X, Carreras C, Pascual M, Turon X. Navigating spatio-temporal microbiome dynamics: Environmental factors and trace elements shape the symbiont community of an invasive marine species. MARINE POLLUTION BULLETIN 2024; 203:116477. [PMID: 38759466 DOI: 10.1016/j.marpolbul.2024.116477] [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: 11/26/2023] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
The proliferation of marine invasive species is a mounting concern. While the role of microbial communities in invasive ascidian species is recognized, the role of seasonal shifts in microbiome composition remains largely unexplored. We sampled five individuals of the invasive ascidian Styela plicata quarterly from January 2020 to October 2021 in two harbours, examining gills, tunics, and surrounding water. By analysing Amplicon Sequence Variants (ASVs) and seawater trace elements, we found that compartment (seawater, tunic, or gills) was the primary differentiating factor, followed by harbour. Clear seasonal patterns were evident in seawater bacteria, less so in gills, and absent in tunics. We identified compartment-specific bacteria, as well as seasonal indicator ASVs and ASVs correlated with trace element concentrations. Among these bacteria, we found that Endozoicomonas, Hepatoplasma and Rhodobacteraceae species had reported functions which might be necessary for overcoming seasonality and trace element shifts. This study contributes to understanding microbiome dynamics in invasive holobiont systems, and the patterns found indicate a potential role in adaptation and invasiveness.
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Affiliation(s)
- Carles Galià-Camps
- Departament de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain; Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain; Department of Marine Ecology, Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés Cala Sant Francesc 14, 17300 Blanes, Spain.
| | - Liam Junkin
- Departament de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain.
| | - Xavier Borrallo
- Departament de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain
| | - Carlos Carreras
- Departament de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain; Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain.
| | - Marta Pascual
- Departament de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain; Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain.
| | - Xavier Turon
- Department of Marine Ecology, Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés Cala Sant Francesc 14, 17300 Blanes, Spain.
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3
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Lei F, Zhang N, Miao J, Tong R, Li Y, Pan L. Potential pathway and mechanisms underlining the immunotoxicity of benzo[a]pyrene to Chlamys farreri. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:97128-97146. [PMID: 37582894 DOI: 10.1007/s11356-023-29016-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/24/2023] [Indexed: 08/17/2023]
Abstract
The long-distance migration of polycyclic aromatic hydrocarbons (PAHs) promotes their release into the marine environment, posing a serious threat to marine life. Studies have shown that PAHs have significant immunotoxicity effects on bivalves, but the exact mechanism of immunotoxicity remains unclear. This paper aims to investigate the effects of exposure to 0.4, 2, and 10 μg/L of benzo(a)pyrene (B[a]P) on the immunity of Chlamys farreri under environmental conditions, as well as the potential molecular mechanism. Multiple biomarkers, including phagocytosis rate, metabolites, neurotoxicity, oxidative stress, DNA damage, and apoptosis, were adopted to assess these effects. After exposure to 0.4, 2, and 10 μg/L B[a]P, obvious concentration-dependent immunotoxicity was observed, indicated by a decrease in the hemocyte index (total hemocyte count, phagocytosis rate, antibacterial and bacteriolytic activity). Analysis of the detoxification metabolic system in C. farreri revealed that B[a]P produced B[a]P-7,8-diol-9,10-epoxide (BPDE) through metabolism, which led to an increase in the expression of protein tyrosine kinase (PTK). In addition, the increased content of neurotransmitters (including acetylcholine, γ -aminobutyric acid, enkephalin, norepinephrine, dopamine, and serotonin) and related receptors implied that B[a]P might affect immunity through neuroendocrine system. The changes in signal pathway factors involved in immune regulation indicated that B[a]P interfered with Ca2+ and cAMP signal transduction via the BPDE-PTK pathway or neuroendocrine pathway, resulting in immunosuppression. Additionally, B[a]P induced the increase in reactive oxygen species (ROS) content and DNA damage, as well as an upregulation of key genes in the mitochondrial pathway and death receptor pathway, leading to the increase of apoptosis rate. Taken together, this study comprehensively investigated the detoxification metabolic system, neuroendocrine system, and cell apoptosis to explore the toxic mechanism of bivalves under B[a]P stress.
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Affiliation(s)
- Fengjun Lei
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Ning Zhang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Ruixue Tong
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Yaobing Li
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
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4
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Castellani F, Marini F, Simonetti G, Protano C, Fabiani L, Manzoli L, Vitali M. Occurrence and congener profiles of dioxins (PCDDs), furans (PCDFs) and polychlorinated biphenyls (PCBs) in ovine and caprine milk samples collected in a very polluted site in Central Italy. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:415-424. [PMID: 36724881 DOI: 10.1080/19440049.2023.2173811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Concentrations of 7 polychlorinated dibenzo-p-dioxins (PCDDs), 10 polychlorinated dibenzofurans (PCDFs) and 18 polychlorinated biphenyls (PCBs), including 12 dioxin-like (DL-PCBs) and 6 non-dioxin-like PCBs (NDL-PCBs) were measured in 16 ovine and caprine milk samples collected in the territory of Bussi sul Tirino, central Italy, a Site of National Interest (SNI) due to its high and widespread environmental pollution. All the analyzed samples were compliant with the maximum levels fixed by Commission Regulation (EU) 1259/2011 for the content of PCDD/Fs and the sum of PCDD/Fs and DL-PCBs. In two cases, contamination levels of the sum of PCDD/Fs and DL-PCBs were higher than the action levels fixed by EU Recommendation 663/2014. The statistical analysis, performed by Principal Component Analysis (PCA), revealed that the differences in contamination profiles of the different milk samples were independent of the distance of the farms from the Bussi illegal landfill but likely related to local emission sources influencing the exposure to POPs of studied animals.
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Affiliation(s)
- Federica Castellani
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy
| | - Federico Marini
- Department of Chemistry, University of Rome La Sapienza, Rome, Italy
| | - Giulia Simonetti
- Department of Chemistry, University of Rome La Sapienza, Rome, Italy
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy
| | - Leila Fabiani
- Department of Life, Health & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Lamberto Manzoli
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Matteo Vitali
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy
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5
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Bernardini I, Fabrello J, Vecchiato M, Ferraresso S, Babbucci M, Peruzza L, Rovere GD, Masiero L, Marin MG, Bargelloni L, Gambaro A, Patarnello T, Matozzo V, Milan M. Effects of environmental concentrations of the fragrance amyl salicylate on the mediterranean mussel Mytilus galloprovincialis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119502. [PMID: 35605833 DOI: 10.1016/j.envpol.2022.119502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/06/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Amyl salicylate (AS) is a fragrance massively used as a personal care product and following the discharged in wastewaters may end up in the aquatic environment representing a potential threat for the ecosystem and living organisms. AS was recently detected in water of the Venice Lagoon, a vulnerable area continuously subjected to the income of anthropogenic chemicals. The lagoon is a relevant area for mollusc farming, including the Mediterranean mussels (Mytilus galloprovincialis) having an important economic and ecological role. Despite high levels of AS occurred in water of the Lagoon of Venice, no studies investigated the possible consequences of AS exposures on species inhabiting this ecosystem to date. For the first time, we applied a multidisciplinary approach to investigate the potential effects of the fragrance AS on Mediterranean mussels. To reach such a goal, bioaccumulation, cellular, biochemical, and molecular analyses (RNA-seq and microbiota characterization) were measured in mussels treated for 7 and 14 days with different AS Venice lagoon environmental levels (0.1 and 0.5 μg L-1). Despite chemical investigations suggested low AS bioaccumulation capability, cellular and molecular analyses highlighted the disruption of several key cellular processes after the prolonged exposures to the high AS concentration. Among them, potential immunotoxicity and changes in transcriptional regulation of pathways involved in energy metabolism, stress response, apoptosis and cell death regulations have been observed. Conversely, exposure to the low AS concentration demonstrated weak transcriptional changes and transient increased representation of opportunistic pathogens, as Arcobacter genus and Vibrio aestuarianus. Summarizing, this study provides the first overview on the effects of AS on one of the most widely farmed mollusk species.
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Affiliation(s)
- I Bernardini
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - J Fabrello
- Department of Biology, University of Padova, Via Bassi 58/B, 35131, Padova, Italy
| | - M Vecchiato
- Institute of Polar Sciences - National Research Council (ISP-CNR), Via Torino 155, 30172, Venezia-Mestre, Venice, Italy; Department of Environmental Sciences, Informatics and Statistics (DAIS), Ca' Foscari University of Venice, Via Torino 155, 30172, Venezia-Mestre, Venice, Italy
| | - S Ferraresso
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - M Babbucci
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - L Peruzza
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - G Dalla Rovere
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - L Masiero
- Department of Biology, University of Padova, Via Bassi 58/B, 35131, Padova, Italy
| | - M G Marin
- Department of Biology, University of Padova, Via Bassi 58/B, 35131, Padova, Italy
| | - L Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - A Gambaro
- Institute of Polar Sciences - National Research Council (ISP-CNR), Via Torino 155, 30172, Venezia-Mestre, Venice, Italy; Department of Environmental Sciences, Informatics and Statistics (DAIS), Ca' Foscari University of Venice, Via Torino 155, 30172, Venezia-Mestre, Venice, Italy
| | - T Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - V Matozzo
- Department of Biology, University of Padova, Via Bassi 58/B, 35131, Padova, Italy.
| | - M Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
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6
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Vibrio splendidus infection induces dysbiosis in the blue mussel and favors pathobiontic bacteria. Microbiol Res 2022; 261:127078. [DOI: 10.1016/j.micres.2022.127078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/11/2022] [Accepted: 05/22/2022] [Indexed: 11/15/2022]
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7
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Sun F, Wang C, Chen X. Bacterial community in Sinonovacula constricta intestine and its relationship with culture environment. Appl Microbiol Biotechnol 2022; 106:5211-5220. [PMID: 35781839 DOI: 10.1007/s00253-022-12048-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/19/2022] [Accepted: 06/21/2022] [Indexed: 11/24/2022]
Abstract
Although the importance of intestinal microbes to aquaculture animals has been recognized, the intestinal bacteria of Sinonovacula constricta and its culture environment are rarely studied. In this study, high-throughput sequencing was used to explore the intestinal bacterial communities of pond water, sediment, and S. constricta intestine. Significance analysis and principal coordinates analysis (PCoA) showed that there were significant differences in bacterial communities among animals' intestine, pond water, and sediment (p < 0.05). Venn analysis showed that intestinal bacteria shared a considerable number of OTUs (operational taxonomic units) with the sediment and water. SourceTracker analysis suggested that the contribution of sediment to the intestinal bacteria of S. constricta was much larger than that of rearing water. The Kruskal-Wallis test showed that the dominant bacterial taxa differed significantly between animals' intestines and the pond environment, and each of them has a unique bacterial composition. A network diagram indicated the complex positive and negative interactions between intestinal bacteria at the OTU level. Furthermore, BugBase analysis indicated that the bacterial contribution to potential pathogens in the animals' intestines is similar to that in sediments, suggesting that sediment was the main source of potential pathogens in S. constricta intestine. This study provided a theoretical basis for environmental regulation and disease prevention of S. constricta in aquaculture. KEY POINTS: • Culture environment had a significant effect on the intestinal bacterial community in S. constricta. • Sediment was a major source of intestinal bacteria and potentially pathogenic bacteria. • Complex positive and negative interactions existed between intestinal bacteria.
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Affiliation(s)
- Fulin Sun
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China. .,Daya Bay Marine Biology Research Station, Chinese Academy of Sciences, Shenzhen, China. .,Sanya Institute of Oceanology, South China Sea Institute of Oceanology, Sanya, China.
| | - Chunzhong Wang
- Putian Institute of Aquaculture Science of Fujian Province, Putian, China
| | - Xuelian Chen
- Putian Tian Ran Xing Agriculture Development Co. Ltd, Putian, China
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8
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Lyu T, Zhu J, Yang X, Yang W, Zheng Z. Responses of Gut Microbial Community Composition and Function of the Freshwater Gastropod Bellamya aeruginosa to Cyanobacterial Bloom. Front Microbiol 2022; 13:906278. [PMID: 35633671 PMCID: PMC9136413 DOI: 10.3389/fmicb.2022.906278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/20/2022] [Indexed: 11/24/2022] Open
Abstract
Freshwater gastropods are widely distributed and play an important role in aquatic ecosystems. Symbiotic microorganisms represented by gut microbes can affect the physiological and biochemical activities of their hosts. However, few studies have investigated the response of the gut microbial community of snails to environmental stress. In this study, the dynamics of the gut microbiota of the gastropod Bellamya aeruginosa were tracked to explore their responses in terms of their composition and function to cyanobacterial bloom. Differences in gut microbial community structures during periods of non-cyanobacterial bloom and cyanobacterial bloom were determined. Results showed that the alpha diversity of the gut microbiota exposed to cyanobacterial bloom was lower than that of the gut microbiota exposed to non-cyanobacterial bloom. The main genera differentiating the two periods were Faecalibacterium, Subdoligranulum, Ralstonia, and Pelomonas. Microcystins (MCs) and water temperature (WT) were the primary factors influencing the gut microbial community of B. aeruginosa; between them, the influence of MCs was greater than that of WT. Fourteen pathways (level 2) were notably different between the two periods. The pathways of carbohydrate metabolism, immune system, environmental adaptation, and xenobiotics biodegradation and metabolism in these differential pathways exhibited a strong linear regression relationship with MCs and WT. Changes in the functions of the gut microbiota may help B. aeruginosa meet its immunity and energy needs during cyanobacterial bloom stress. These results provide key information for understanding the response pattern of freshwater snail intestinal flora to cyanobacterial blooms and reveal the underlying environmental adaptation mechanism of gastropods from the perspective of intestinal flora.
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9
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Iannello M, Mezzelani M, Dalla Rovere G, Smits M, Patarnello T, Ciofi C, Carraro L, Boffo L, Ferraresso S, Babbucci M, Mazzariol S, Centelleghe C, Cardazzo B, Carrer C, Varagnolo M, Nardi A, Pittura L, Benedetti M, Fattorini D, Regoli F, Ghiselli F, Gorbi S, Bargelloni L, Milan M. Long-lasting effects of chronic exposure to chemical pollution on the hologenome of the Manila clam. Evol Appl 2021; 14:2864-2880. [PMID: 34950234 PMCID: PMC8674894 DOI: 10.1111/eva.13319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic exposure to pollutants affects natural populations, creating specific molecular and biochemical signatures. In the present study, we tested the hypothesis that chronic exposure to pollutants might have substantial effects on the Manila clam hologenome long after removal from contaminated sites. To reach this goal, a highly integrative approach was implemented, combining transcriptome, genetic and microbiota analyses with the evaluation of biochemical and histological profiles of the edible Manila clam Ruditapes philippinarum, as it was transplanted for 6 months from the polluted area of Porto Marghera (PM) to the clean area of Chioggia (Venice lagoon, Italy). One month post-transplantation, PM clams showed several modifications to its resident microbiota, including an overrepresentation of the opportunistic pathogen Arcobacter spp. This may be related to the upregulation of several immune genes in the PM clams, potentially representing a host response to the increased abundance of deleterious bacteria. Six months after transplantation, PM clams demonstrated a lower ability to respond to environmental/physiological stressors related to the summer season, and the hepatopancreas-associated microbiota still showed different compositions among PM and CH clams. This study confirms that different stressors have predictable effects in clams at different biological levels and demonstrates that chronic exposure to pollutants leads to long-lasting effects on the animal hologenome. In addition, no genetic differentiation between samples from the two areas was detected, confirming that PM and CH clams belong to a single population. Overall, the obtained responses were largely reversible and potentially related to phenotypic plasticity rather than genetic adaptation. The results here presented will be functional for the assessment of the environmental risk imposed by chemicals on an economically important bivalve species.
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Affiliation(s)
- Mariangela Iannello
- Department of Biological, Geological, and Environmental SciencesUniversity of BolognaBolognaItaly
| | - Marica Mezzelani
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Giulia Dalla Rovere
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Morgan Smits
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Tomaso Patarnello
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Claudio Ciofi
- Department of BiologyUniversity of FlorenceSesto FiorentinoItaly
| | - Lisa Carraro
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Luciano Boffo
- Associazione “Vongola Verace di Chioggia”ChioggiaItaly
| | - Serena Ferraresso
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Massimiliano Babbucci
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Sandro Mazzariol
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Barbara Cardazzo
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Claudio Carrer
- c/o Magistrato alle Acque di Venezia Ufficio Tecnico Antinquinamento Laboratorio CSMOPadovaItaly
| | | | - Alessandro Nardi
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Lucia Pittura
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Maura Benedetti
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Daniele Fattorini
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Francesco Regoli
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Fabrizio Ghiselli
- Department of Biological, Geological, and Environmental SciencesUniversity of BolognaBolognaItaly
| | - Stefania Gorbi
- Department of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
| | - Luca Bargelloni
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
| | - Massimo Milan
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroItaly
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10
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Castellani F, Manzoli L, Martellucci CA, Flacco ME, Astolfi ML, Fabiani L, Mastrantonio R, Avino P, Protano C, Vitali M. Levels of Polychlorinated Dibenzo-p-Dioxins/Furans and Polychlorinated Biphenyls in Free-Range Hen Eggs in Central Italy and Estimated Human Dietary Exposure. J Food Prot 2021; 84:1455-1462. [PMID: 33852724 DOI: 10.4315/jfp-21-126] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/13/2021] [Indexed: 12/17/2022]
Abstract
ABSTRACT The aim of the present study was to evaluate the contamination levels of some classes of persistent organic pollutants in free-range hen eggs and to estimate the related human dietary exposure in a site of national interest, characterized by a serious state of environmental pollution in the Bussi sul Tirino area in central Italy. For these purposes, 17 samples of free-range hen eggs collected in home-producing farms located in the site of national interest territory were analyzed for 17 polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), 12 dioxin-like polychlorinated biphenyls (dl-PCBs), and 6 non-dioxin-like PCBs (ndl-PCBs). Dietary exposure was assessed assuming a standard consumption of eggs per week. The concentration of ∑PCDD/Fs plus dl-PCBs ranged from 0.463 to 8.028 pg toxic equivalent g-1 fat, whereas the mean contamination level of the ∑ndl-PCBs ranged from 0.234 to 7.741 ng toxic equivalent g-1 fat. PCDD/Fs and PCBs contamination levels were lower than maximum values established by the Commission Regulation (European Union) 1259/2011, except for one sample. The estimated weekly intake, calculated to evaluate the contribution in terms of the monitored pollutants of the locally produced eggs to the diet, was lower than the tolerable weekly intake established by the European Food Safety Authority. HIGHLIGHTS
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Affiliation(s)
- F Castellani
- Department of Public Health and Infectious Diseases, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
| | - L Manzoli
- Department of Medical Sciences, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
| | - C Acuti Martellucci
- Department of Medical Sciences, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
| | - M E Flacco
- Department of Medical Sciences, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
| | - M L Astolfi
- Department of Chemistry, University of Rome La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy
| | - L Fabiani
- Department of Life, Health & Environmental Sciences, University of L'Aquila, P.le Salvatore Tommasi 1, 67100 Coppito, L'Aquila, Italy
| | - R Mastrantonio
- Department of Life, Health & Environmental Sciences, University of L'Aquila, P.le Salvatore Tommasi 1, 67100 Coppito, L'Aquila, Italy
| | - P Avino
- Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, via De Sanctis, 86100 Campobasso, Italy
| | - C Protano
- Department of Public Health and Infectious Diseases, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
| | - M Vitali
- Department of Public Health and Infectious Diseases, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara (FE), Italy
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11
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Bernardini I, Matozzo V, Valsecchi S, Peruzza L, Rovere GD, Polesello S, Iori S, Marin MG, Fabrello J, Ciscato M, Masiero L, Bonato M, Santovito G, Boffo L, Bargelloni L, Milan M, Patarnello T. The new PFAS C6O4 and its effects on marine invertebrates: First evidence of transcriptional and microbiota changes in the Manila clam Ruditapes philippinarum. ENVIRONMENT INTERNATIONAL 2021; 152:106484. [PMID: 33740673 DOI: 10.1016/j.envint.2021.106484] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/16/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
There is growing concern for the wide use ofperfluorooctanoic acid (PFOA) because of its toxic effects on the environment and on human health. A new compound - the so called C6O4 (perfluoro ([5-methoxy-1,3-dioxolan-4-yl]oxy) acetic acid) - was recently introduced as one of the alternative to traditional PFOA, however this was done without any scientific evidence of the effects of C6O4 when dispersed into the environment. Recently, the Regional Agency for the Protection of the Environment of Veneto (Italy) detected high levels of C6O4 in groundwater and in the Po river, increasing the alarm for the potential effects of this chemical into the natural environment. The present study investigates for the first time the effects of C6O4 on the Manila clam Ruditapes philippinarum exposed to environmental realistic concentrations of C6O4 (0.1 µg/L and 1 µg/L) for 7 and 21 days. Furthermore, in order to better understand if C6O4 is a valid and less hazardous alternative to its substitute, microbial and transcriptomic alterations were also investigated in clams exposed to 1 µg/L ofPFOA. Results indicate that C6O4 may cause significant perturbations to the digestive gland microbiota, likely determining the impairment of host physiological homeostasis. Despite chemical analyses suggest a 5 times lower accumulation potential of C604 as compared to PFOA in clam soft tissues, transcriptional analyses reveal several alterations of gene expression profile. A large part of the altered pathways, including immune response, apoptosis regulation, nervous system development, lipid metabolism and cell membrane is the same in C6O4 and PFOA exposed clams. In addition, clams exposed to C6O4 showed dose-dependent responses as well as possible narcotic or neurotoxic effects and reduced activation of genes involved in xenobiotic metabolism. Overall, the present study suggests that the potential risks for marine organism following environmental contamination are not reduced by replacing PFOA with C6O4. In addition, the detection of both C6O4 and PFOA into tissues of clams inhabiting the Lagoon of Venice - where there are no point sources of either compounds - recommends a similar capacity to spread throughout the environment. These results prompt the urgent need to re-evaluate the use of C6O4 as it may represent not only an environmental hazard but also a potential risk for human health.
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Affiliation(s)
- Ilaria Bernardini
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Valerio Matozzo
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | - Sara Valsecchi
- Water Research Institute, Italian National Research Council (IRSA-CNR), Via Mulino 19, 20861 Brugherio, MB, Italy
| | - Luca Peruzza
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Giulia Dalla Rovere
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Stefano Polesello
- Water Research Institute, Italian National Research Council (IRSA-CNR), Via Mulino 19, 20861 Brugherio, MB, Italy
| | - Silvia Iori
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | | | - Jacopo Fabrello
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | - Maria Ciscato
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | - Luciano Masiero
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | - Marco Bonato
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | - Gianfranco Santovito
- Department of Biology, University of Padova, Via Bassi 58/B, 35131 Padova, Italy
| | | | - Luca Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Massimo Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
| | - Tomaso Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
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12
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Vitali M, Castellani F, Fragassi G, Mascitelli A, Martellucci C, Diletti G, Scamosci E, Astolfi ML, Fabiani L, Mastrantonio R, Protano C, Spica VR, Manzoli L. Environmental status of an Italian site highly polluted by illegal dumping of industrial wastes: The situation 15 years after the judicial intervention. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:144100. [PMID: 33360460 DOI: 10.1016/j.scitotenv.2020.144100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/03/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
In 2008 the Italian government classified the Bussi sul Tirino area (Central Italy) as Site of National Interest destined to remediation which, unfortunately, has not yet begun. The decision followed >20 years of illegal dumping of industrial wastes, lasting from 1984 to 2005, that generated the biggest illegal toxic waste disposal site in Europe. The contamination profile of the site was mainly characterized by PCDD/Fs, PCBs, PAHs, chlorinated solvents, Hg, and Pb. Due to the health concern of the population and local authorities, an extensive monitoring and biomonitoring campaign was carried out in 2017-2018, checking the site-specific pollutants in local food (free-range hens' eggs, milk from grazing sheep and goats, wild edible mushrooms, and drinking water), environmental (air and freshwaters) and biological (human urine) matrices. A total of 314 samples were processed, obtaining 3217 analytical data that were compared with regulatory limits, when available, and values reported by international literature. The sum PCDD/Fs and DL-PCBs ranged from 0.24 to 3.6 pg TEQ g-1 fat, and from 0.46 to 8.3 pg TEQ g-1 fat, respectively in milk in eggs, in line with the maximum levels established by CE Regulations except for an egg sample. As regards PAHs, all our results were lower than the literature data, as well as for Hg and Pb. Outdoor air showed levels of chlorinated solvents ranging from <LOD to 36 μg m-3, and freshwaters from 0.21 to 2.8 μg L-1. All drinking water samples resulted compliant with the maximum levels established by the current EU directive. Despite the severe pollution of the illegal dumping site and the remediation not yet carried out, the local environment and the population living in Bussi and surroundings seem not to be affected by significant exposure to the toxics characterizing the landfill.
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Affiliation(s)
- Matteo Vitali
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy.
| | - Federica Castellani
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy; Department of Ecological and Biological Sciences, Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Giorgia Fragassi
- Regional Healthcare Agency of Abruzzo, Via Attilio Monti 9, 65127 Pescara, PE, Italy
| | - Alfonso Mascitelli
- Regional Healthcare Agency of Abruzzo, Via Attilio Monti 9, 65127 Pescara, PE, Italy
| | - Cecilia Martellucci
- Department of Biomedical Sciences and Public Health, University of the Marche Region, Via Tronto 10/a, 60020 Torrette di Ancona, AN, Italy
| | - Gianfranco Diletti
- Istituto Zooprofilattico Sperimentale of Abruzzo and Molise "Giuseppe Caporale", via Campo Boario, 64100 Teramo, TE, Italy.
| | - Emanuela Scamosci
- Environmental Protection Regional Agency of Abruzzo, via Marconi 49, 65126 Pescara, PE, Italy.
| | - Maria Luisa Astolfi
- Department of Chemistry, University of Rome La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy.
| | - Leila Fabiani
- Department of Life, Health & Environmental Sciences, University of L'Aquila, P.le Salvatore Tommasi 1, 67100 Coppito, L'Aquila, Italy.
| | - Riccardo Mastrantonio
- Department of Life, Health & Environmental Sciences, University of L'Aquila, P.le Salvatore Tommasi 1, 67100 Coppito, L'Aquila, Italy.
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy.
| | - Vincenzo Romano Spica
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 6, 00135 Rome, Italy.
| | - Lamberto Manzoli
- Department of Medical Sciences, University of Ferrara, Via Fossato di Mortara 64B, 44121 Ferrara, FE, Italy.
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13
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Balbi T, Auguste M, Ciacci C, Canesi L. Immunological Responses of Marine Bivalves to Contaminant Exposure: Contribution of the -Omics Approach. Front Immunol 2021; 12:618726. [PMID: 33679759 PMCID: PMC7930816 DOI: 10.3389/fimmu.2021.618726] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 01/22/2021] [Indexed: 12/27/2022] Open
Abstract
The increasing number of data studies on the biological impact of anthropogenic chemicals in the marine environment, together with the great development of invertebrate immunology, has identified marine bivalves as a key invertebrate group for studies on immunological responses to pollutant exposure. Available data on the effects of contaminants on bivalve immunity, evaluated with different functional and molecular endpoints, underline that individual functional parameters (cellular or humoral) and the expression of selected immune-related genes can distinctly react to different chemicals depending on the conditions of exposure. Therefore, the measurement of a suite of immune biomarkers in hemocytes and hemolymph is needed for the correct evaluation of the overall impact of contaminant exposure on the organism's immunocompetence. Recent advances in -omics technologies are revealing the complexity of the molecular players in the immune response of different bivalve species. Although different -omics represent extremely powerful tools in understanding the impact of pollutants on a key physiological function such as immune defense, the -omics approach has only been utilized in this area of investigation in the last few years. In this work, available information obtained from the application of -omics to evaluate the effects of pollutants on bivalve immunity is summarized. The data shows that the overall knowledge on this subject is still quite limited and that to understand the environmental relevance of any change in immune homeostasis induced by exposure to contaminants, a combination of both functional assays and cutting-edge technology (transcriptomics, proteomics, and metabolomics) is required. In addition, the utilization of metagenomics may explain how the complex interplay between the immune system of bivalves and its associated bacterial communities can be modulated by pollutants, and how this may in turn affect homeostatic processes of the host, host–pathogen interactions, and the increased susceptibility to disease. Integrating different approaches will contribute to knowledge on the mechanism responsible for immune dysfunction induced by pollutants in ecologically and economically relevant bivalve species and further explain their sensitivity to multiple stressors, thus resulting in health or disease.
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Affiliation(s)
- Teresa Balbi
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
| | - Manon Auguste
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
| | - Caterina Ciacci
- Department of Biomolecular Sciences (DIBS), University of Urbino, Urbino, Italy
| | - Laura Canesi
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
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14
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Wang D, Liu B. Transcriptomic analysis reveals the immune changes associated with reproduction in the clam Meretrix petechialis. FISH & SHELLFISH IMMUNOLOGY 2021; 108:24-31. [PMID: 33253907 DOI: 10.1016/j.fsi.2020.11.026] [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: 09/24/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Substantial mortality and economic losses in marine mollusk culture has drawn considerable attention in recent years. The changes in immune status and environmental stress are thought to be the main causes of shellfish summer mortality. The reproduction and immune defense are both physiologically demanding processes, therefore, the immune status of mollusk is likely to be affected by reproduction during breeding. In present study, we performed transcriptome and gene expression analyses in the clam Meretrix petechialis pre-/post-spawning. DEGs enrichment analysis revealed important immune signaling pathways and key genes changed after spawning. Further analysis showed females up-regulated genes involved in apoptosis, TLR signal pathway and heat shock, whereas males down-regulated complement-related genes after spawning. Additionally, both genders of clams up-regulated its immune response level to against Vibrio infection after spawning revealed by the changes of four immune-related DEGs. The up-regulation of two marker genes at the transcription and protein levels further confirmed that pathogen reinforced the expression differences of immune-related genes between the two groups. Our study provides a new insight into the understanding of molecular mechanisms underlying reproduction influenced immune differences in M. petechialis.
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Affiliation(s)
- Di Wang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baozhong Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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15
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Mezzelani M, Nardi A, Bernardini I, Milan M, Peruzza L, d'Errico G, Fattorini D, Gorbi S, Patarnello T, Regoli F. Environmental pharmaceuticals and climate change: The case study of carbamazepine in M. galloprovincialis under ocean acidification scenario. ENVIRONMENT INTERNATIONAL 2021; 146:106269. [PMID: 33248345 DOI: 10.1016/j.envint.2020.106269] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/18/2020] [Accepted: 10/18/2020] [Indexed: 06/12/2023]
Abstract
Contaminants of emerging concern and ocean changes are key environmental stressors for marine species with possibly synergistic, but still unexplored, deleterious effects. In the present study the influence of a simulated ocean acidification scenario (pH = 7.6) was investigated on metabolism and sub-lethal effects of carbamazepine, CBZ (1 µg/L), chosen as one of the most widely diffused pharmaceuticals in marine organisms. A multidisciplinary approach was applied on mussels, M. galloprovincialis, integrating measurement of drug bioaccumulation with changes in the whole transcriptome, responsiveness of various biochemical and cellular biomarkers including immunological parameters, lipid and oxidative metabolism, onset of genotoxic effects. Chemical analyses revealed a limited influence of hypercapnia on accumulation and excretion of CBZ, while a complex network of biological responses was observed in gene expression profile and functional changes at cellular level. The modulation of gamma-aminobutyric acid (GABA) pathway suggested similarities with the Mechanism of Action known for vertebrates: immune responses, cellular homeostasis and oxidative system represented the processes targeted by combined stressors. The overall elaboration of results through a quantitative Weight of Evidence model, revealed clearly increased cellular hazard due to interactions of CBZ with acidification compared to single stressors.
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Affiliation(s)
- Marica Mezzelani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy
| | - Alessandro Nardi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy
| | - Ilaria Bernardini
- Dipartimento di Biomedicina Comparata e Alimentazione, Università di Padova, Viale dell'Università, 16, 35020 Legnaro (PD), Polo di Agripolis, Italy
| | - Massimo Milan
- Dipartimento di Biomedicina Comparata e Alimentazione, Università di Padova, Viale dell'Università, 16, 35020 Legnaro (PD), Polo di Agripolis, Italy
| | - Luca Peruzza
- Dipartimento di Biomedicina Comparata e Alimentazione, Università di Padova, Viale dell'Università, 16, 35020 Legnaro (PD), Polo di Agripolis, Italy
| | - Giuseppe d'Errico
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy
| | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy
| | - Stefania Gorbi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy
| | - Tomaso Patarnello
- Dipartimento di Biomedicina Comparata e Alimentazione, Università di Padova, Viale dell'Università, 16, 35020 Legnaro (PD), Polo di Agripolis, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche (60131), Ancona, Italy.
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16
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Gut Symbiotic Microbial Communities in the IUCN Critically Endangered Pinna nobilis Suffering from Mass Mortalities, Revealed by 16S rRNA Amplicon NGS. Pathogens 2020; 9:pathogens9121002. [PMID: 33260452 PMCID: PMC7761360 DOI: 10.3390/pathogens9121002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023] Open
Abstract
Mass mortality events due to disease outbreaks have recently affected almost every healthy population of fan mussel, Pinna nobilis in Mediterranean Sea. The devastating mortality of the species has turned the interest of the research towards the causes of these events. After the haplosporidan infestation and the infection by Mycobacterium sp., new emerging pathogens have arisen based on the latest research. In the present study, a metagenomic approach of 16S rRNA next generation sequencing (NGS) was applied in order to assess the bacterial diversity within the digestive gland of diseased individuals as well as to carry out geographical correlations among the biodiversity of microbiome in the endangered species Pinna nobilis. The specimens originated from the mortalities occurred in 2019 in the region of Greece. Together with other bacterial genera, the results confirmed the presence of Vibrio spp., assuming synergistic effects in the mortality events of the species. Alongside with the presence of Vibrio spp., numerous bacterial genera were detected as well, including Aliivibrio spp., Photobacterium spp., Pseudoalteromonas spp., Psychrilyobacter spp. and Mycoplasma spp. Bacteria of the genus Mycoplasma were in high abundance particularly in the sample originated from Limnos island representing the first time recorded in Pinna nobilis. In conclusion, apart from exclusively the Haplosporidan and the Mycobacterium parasites, the presence of potentially pathogenic bacterial taxa detected, such as Vibrio spp., Photobactrium spp. and Alivibrio spp. lead us to assume that mortality events in the endangered Fan mussel, Pinna nobilis, may be attributed to synergistic effects of more pathogens.
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17
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Carducci F, Biscotti MA, Trucchi E, Giuliani ME, Gorbi S, Coluccelli A, Barucca M, Canapa A. Omics approaches for conservation biology research on the bivalve Chamelea gallina. Sci Rep 2020; 10:19177. [PMID: 33154500 PMCID: PMC7645701 DOI: 10.1038/s41598-020-75984-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/30/2020] [Indexed: 12/27/2022] Open
Abstract
The striped venus (Chamelea gallina) is an important economic resource in the Mediterranean Basin; this species has exhibited a strong quantitative decline in the Adriatic Sea. The aim of this work was to provide a comprehensive view of the biological status of C. gallina to elucidate the bioecological characteristics and genetic diversity of wild populations. To the best of our knowledge, this investigation is the first to perform a multidisciplinary study on C. gallina based on two omics approaches integrated with histological, ecotoxicological, and chemical analyses and with the assessment of environmental parameters. The results obtained through RNA sequencing indicated that the striped venus has a notable ability to adapt to different environmental conditions. Moreover, the stock reduction exhibited by this species in the last 2 decades seems not to have negatively affected its genetic diversity. Indeed, the high level of genetic diversity that emerged from our ddRAD dataset analyses is ascribable to the high larval dispersal rate, which might have played a “compensatory role” on local fluctuations, conferring to this species a good adaptive potential to face the environmental perturbations. These findings may facilitate the efforts of conservation biologists to adopt ad hoc management plans for this fishery resource.
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Affiliation(s)
- Federica Carducci
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Maria Assunta Biscotti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Emiliano Trucchi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Maria Elisa Giuliani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Stefania Gorbi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Alessandro Coluccelli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Barucca
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Adriana Canapa
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy.
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18
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Zampieri A, Carraro L, Cardazzo B, Milan M, Babbucci M, Smits M, Boffo L, Fasolato L. Depuration processes affect the Vibrio community in the microbiota of the Manila clam, Ruditapes philippinarum. Environ Microbiol 2020; 22:4456-4472. [PMID: 32783350 DOI: 10.1111/1462-2920.15196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/09/2020] [Indexed: 12/18/2022]
Abstract
As filter-feeders, bivalve molluscs accumulate Vibrio into edible tissues. Consequently, an accurate assessment of depuration procedures and the characterization of the persistent Vibrio community in depurated shellfish represent a key issue to guarantee food safety in shellfish products. The present study investigated changes in the natural Vibrio community composition of the Ruditapes philippinarum microbiota with specific focus on human pathogenic species. For this purpose, the study proposed a MLSA-NGS approach (rRNA 16S, recA and pyrH) for the detection and identification of Vibrio species. Clam microbiota were analysed before and after depuration procedures performed in four depuration plants, using culture-dependent and independent approaches. Microbiological counts and NGS data revealed differences in terms of both contamination load and Vibrio community between depuration plants. The novel MLSA-NGS approach allowed for a clear definition of the Vibrio species specific to each depuration plant. Specifically, depurated clam microbiota showed presence of human pathogenic species. Ozone treatments and the density of clams in the depuration tank probably influenced the level of contamination and the Vibrio community composition. The composition of Vibrio community specific to each plant should be carefully evaluated during the risk assessment to guarantee a food-safe shellfish-product for the consumer.
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Affiliation(s)
- Angela Zampieri
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | - Lisa Carraro
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | - Barbara Cardazzo
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | - Massimo Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | - Massimiliano Babbucci
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | - Morgan Smits
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
| | | | - Luca Fasolato
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020, Italy
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19
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Auguste M, Lasa A, Balbi T, Pallavicini A, Vezzulli L, Canesi L. Impact of nanoplastics on hemolymph immune parameters and microbiota composition in Mytilus galloprovincialis. MARINE ENVIRONMENTAL RESEARCH 2020; 159:105017. [PMID: 32662444 DOI: 10.1016/j.marenvres.2020.105017] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
Ocean contamination by micro- and nanoplastics represents a potential threat to marine biota, from bacterial communities to higher organisms. In this work, the effect of in vivo exposure of Mytilus galloprovincialis to amino modified nanopolystyrene (PS-NH2) (10 μg/L, 96 h) on hemolymph immune parameters and microbiota composition were investigated. Nanoplastics significantly affected immune parameters (decreased phagocytosis, increased ROS and lysozyme activity, inhibition of NO production). These changes were associated with a shift in hemolymph microbiota composition, with increase in some genera (Arcobacter-like, Psychrobium, Vibrio), and decreases in others (Shewanella, Mycoplasma). The results indicate that exposure to nanoplastics can impact on the microbiome of marine bivalves, and suggest that downregulation of immune defences induced by PS-NH2 may favour potentially pathogenic bacteria. These data underline how exposure to nanoplastics may represent a potential threat to the complex interplay between innate immunity and host microbiota, thus affecting the homeostatic processes involved in maintenance of organism health.
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Affiliation(s)
- Manon Auguste
- DISTAV, Dept. of Environmental, Earth and Life Sciences, University of Genoa, Italy.
| | - Aide Lasa
- DISTAV, Dept. of Environmental, Earth and Life Sciences, University of Genoa, Italy; Department of Microbiology and Parasitology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Teresa Balbi
- DISTAV, Dept. of Environmental, Earth and Life Sciences, University of Genoa, Italy
| | | | - Luigi Vezzulli
- DISTAV, Dept. of Environmental, Earth and Life Sciences, University of Genoa, Italy
| | - Laura Canesi
- DISTAV, Dept. of Environmental, Earth and Life Sciences, University of Genoa, Italy
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Iori S, Rovere GD, Ezzat L, Smits M, Ferraresso SS, Babbucci M, Marin MG, Masiero L, Fabrello J, Garro E, Carraro L, Cardazzo B, Patarnello T, Matozzo V, Bargelloni L, Milan M. The effects of glyphosate and AMPA on the mediterranean mussel Mytilus galloprovincialis and its microbiota. ENVIRONMENTAL RESEARCH 2020; 182:108984. [PMID: 31830695 DOI: 10.1016/j.envres.2019.108984] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/29/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Glyphosate, the most widely used herbicide worldwide, targets the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme in the shikimate pathway found in plants and some microorganisms. While the potential for glyphosate to induce a broad range of biological effects in exposed organisms has been demonstrated, the global molecular mechanisms of toxicity and potential effects in bacterial symbionts remain unclear, in particular for ecologically important marine species such as bivalve molluscs. Here, the effects of glyphosate (GLY), its degradation product aminomethylphosphonic acid (AMPA), and a mixture of both (MIX) on the mussel M. galloprovincialis were assessed in a controlled experiment. For the first time, next generation sequencing (RNA-seq and 16S rRNA amplicon sequencing) was used to evaluate such effects at the molecular level in both the host and its respective microbiota. The results suggest that the variable capacity of bacterial species to proliferate in the presence of these compounds and the impairment of host physiological homeostasis due to AMPA and GLY toxicity may cause significant perturbations to the digestive gland microbiota, as well as elicit the spread of potential opportunistic pathogens such as Vibrio spp.. The consequent host-immune system activation identified at the molecular and cellular level could be aimed at controlling changes occurring in the composition of symbiotic microbial communities. Overall, our data raise further concerns about the potential adverse effects of glyphosate and AMPA in marine species, suggesting that both the effects of direct toxicity and the ensuing changes occurring in the host-microbial community must be taken into consideration to determine the overall ecotoxicological hazard of these compounds.
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Affiliation(s)
- S Iori
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - G Dalla Rovere
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - L Ezzat
- Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, CA, 93106, Santa Barbara, United States
| | - M Smits
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - S S Ferraresso
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - M Babbucci
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - M G Marin
- Department of Biology, University of Padova, Via Basssi 58/B, 35131, Padova, Italy
| | - L Masiero
- Department of Biology, University of Padova, Via Basssi 58/B, 35131, Padova, Italy
| | - J Fabrello
- Department of Biology, University of Padova, Via Basssi 58/B, 35131, Padova, Italy
| | - E Garro
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - L Carraro
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - B Cardazzo
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - T Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - V Matozzo
- Department of Biology, University of Padova, Via Basssi 58/B, 35131, Padova, Italy
| | - L Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy; CONISMA - Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - M Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, 35020, Legnaro (PD), Italy; CONISMA - Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy.
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