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Chen L, Li D, Shen Y, Li Z, Hao H, Ke C, Meng Z, Feng D. Microbiota characterization of the green mussel Perna viridis at the tissue scale and its relationship with the environment. Front Microbiol 2024; 15:1366305. [PMID: 38680921 PMCID: PMC11047130 DOI: 10.3389/fmicb.2024.1366305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Research on the microbiota associated with marine invertebrates is important for understanding host physiology and the relationship between the host and the environment. In this study, the microbiota of the green mussel Perna viridis was characterized at the tissue scale using 16S rRNA gene high-throughput sequencing and compared with the microbiota of the surrounding environment. Different mussel tissues were sampled, along with two environmental samples (the mussel's attachment substratum and seawater). The results showed that the phyla Proteobacteria, Bacteroidetes, and Spirochaetae were dominant in mussel tissues. The bacterial community composition at the family level varied among the tissues of P. viridis. Although the microbiota of P. viridis clearly differed from that of the surrounding seawater, the composition and diversity of the microbial community of the foot and outer shell surface were similar to those of the substratum, indicating their close relationship with the substratum. KEGG prediction analysis indicated that the bacteria harbored by P. viridis were enriched in the degradation of aromatic compounds, osmoregulation, and carbohydrate oxidation and fermentation, processes that may be important in P. viridis physiology. Our study provides new insights into the tissue-scale characteristics of mussel microbiomes and the intricate connection between mussels and their environment.
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Affiliation(s)
- Liying Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Dai Li
- China Nuclear Power Engineering Co., Ltd, Beijing, China
| | - Yawei Shen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zhuo Li
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Huanhuan Hao
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Caihuan Ke
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zhang Meng
- China Nuclear Power Engineering Co., Ltd, Beijing, China
| | - Danqing Feng
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
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2
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Akter S, Wos-Oxley ML, Catalano SR, Hassan MM, Li X, Qin JG, Oxley AP. Host Species and Environment Shape the Gut Microbiota of Cohabiting Marine Bivalves. MICROBIAL ECOLOGY 2023; 86:1755-1772. [PMID: 36811710 PMCID: PMC10497454 DOI: 10.1007/s00248-023-02192-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Pacific oysters (Crassostrea gigas) and Mediterranean mussels (Mytilus galloprovincialis) are commercially important marine bivalves that frequently coexist and have overlapping feeding ecologies. Like other invertebrates, their gut microbiota is thought to play an important role in supporting their health and nutrition. Yet, little is known regarding the role of the host and environment in driving these communities. Here, bacterial assemblages were surveyed from seawater and gut aspirates of farmed C. gigas and co-occurring wild M. galloprovincialis in summer and winter using Illumina 16S rRNA gene sequencing. Unlike seawater, which was dominated by Pseudomonadata, bivalve samples largely consisted of Mycoplasmatota (Mollicutes) and accounted for >50% of the total OTU abundance. Despite large numbers of common (core) bacterial taxa, bivalve-specific species (OTUs) were also evident and predominantly associated with Mycoplasmataceae (notably Mycoplasma). An increase in diversity (though with varied taxonomic evenness) was observed in winter for both bivalves and was associated with changes in the abundance of core and bivalve-specific taxa, including several representing host-associated and environmental (free-living or particle-diet associated) organisms. Our findings highlight the contribution of the environment and the host in defining the composition of the gut microbiota in cohabiting, intergeneric bivalve populations.
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Affiliation(s)
- Shirin Akter
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | | | - Sarah R Catalano
- Aquatic Sciences Centre, South Australian Research and Development Institute, West Beach, SA, Australia
| | - Md Mahbubul Hassan
- Aquaculture Research and Development, Department of Primary Industries and Regional Development, Hillarys, WA, Australia
| | - Xiaoxu Li
- Aquatic Sciences Centre, South Australian Research and Development Institute, West Beach, SA, Australia
| | - Jian G Qin
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | - Andrew Pa Oxley
- School of Life and Environmental Sciences, Deakin University, Geelong, VIC, Australia.
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3
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Offret C, Gauthier O, Despréaux G, Bidault A, Corporeau C, Miner P, Petton B, Pernet F, Fabioux C, Paillard C, Le Blay G. Microbiota of the Digestive Glands and Extrapallial Fluids of Clams Evolve Differently Over Time Depending on the Intertidal Position. MICROBIAL ECOLOGY 2023; 85:288-297. [PMID: 35066615 DOI: 10.1007/s00248-022-01959-0] [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: 10/15/2021] [Accepted: 01/04/2022] [Indexed: 02/08/2023]
Abstract
The Manila clam (Ruditapes philippinarum) is the second most exploited bivalve in the world but remains threatened by diseases and global changes. Their associated microbiota play a key role in their fitness and acclimation capacities. This study aimed at better understanding the behavior of clam digestive glands and extrapallial fluids microbiota at small, but contrasting spatial and temporal scales. Results showed that environmental variations impacted clam microbiota differently according to the considered tissue. Each clam tissue presented its own microbiota and showed different dynamics according to the intertidal position and sampling period. Extrapallial fluids microbiota was modified more rapidly than digestive glands microbiota, for clams placed on the upper and lower intertidal position, respectively. Clam tissues could be considered as different microhabitats for bacteria as they presented different responses to small-scale temporal and spatial variabilities in natural conditions. These differences underlined a more stringent environmental filter capacity of the digestive glands.
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Affiliation(s)
- Clément Offret
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | - Olivier Gauthier
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | | | - Adeline Bidault
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | | | - Philippe Miner
- Ifremer, Univ Brest, CNRS, IRD, LEMAR, Plouzané, 29280, Brest, France
| | - Bruno Petton
- Ifremer, Univ Brest, CNRS, IRD, LEMAR, Plouzané, 29280, Brest, France
| | - Fabrice Pernet
- Ifremer, Univ Brest, CNRS, IRD, LEMAR, Plouzané, 29280, Brest, France
| | - Caroline Fabioux
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
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4
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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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5
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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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6
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Gerpe D, Lasa A, Lema A, Romalde JL. Metataxonomic analysis of tissue-associated microbiota in grooved carpet-shell (Ruditapes decussatus) and Manila (Ruditapes philippinarum) clams. Int Microbiol 2021; 24:607-618. [PMID: 34606012 PMCID: PMC8616884 DOI: 10.1007/s10123-021-00214-9] [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: 07/15/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 01/05/2023]
Abstract
Culture-dependent techniques only permit the study of a low percentage of the microbiota diversity in the environment. The introduction of next generation sequencing (NGS) technologies shed light into this hidden microbial world, providing a better knowledge on the general microbiota and, specifically, on the microbial populations of clams. Tissue-associated microbiota of Ruditapes decussatus and Ruditapes philippinarum (mantle, gills, gonad and hepatopancreas) was analysed in two different locations of Galicia (northwest of Spain) during Spring (April) and Autumn (October), employing a metataxonomic approach. High bacterial diversity and richness were found in all samples where a total of 22,044 OTUs were obtained. In most samples, phylum Proteobacteria was most frequently retrieved, although other phyla as Actinobacteria, Bacteroidetes, Tenericutes, Firmicutes or Chlamydiae also appeared at high relative abundances in the samples. At genus level, great variation was found across tissues and sampling periods. A Nonmetric Multidimensional Scaling (NMDS) and a hierarchical clustering analysis allowed to further analyse the factors responsible for the differences among groups of samples in the different sites. Results showed sample ordination based on tissue origin and sampling periods, pointing out that the microbiota was influenced by these factors. Indeed, predominance of certain genera was observed, such as Endozoicomonas or Methylobacterium in gills and gonads, respectively, suggesting that selection of specific bacterial taxa is likely to occur. So far, this study provided a general picture of the tissue associated microbial population structure in R. decussatus and R. philippinarum clams, which, ultimately, allowed the identification of specific tissue-related taxa.
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Affiliation(s)
- Diego Gerpe
- Departamento de Microbiología Y Parasitología, CRETUS & CIBUS-Facultad de Biología, Universidade de Santiago de Compostela, Campus Vida s/n, 15782, Santiago de Compostela, Spain
| | - Aide Lasa
- Departamento de Microbiología Y Parasitología, CRETUS & CIBUS-Facultad de Biología, Universidade de Santiago de Compostela, Campus Vida s/n, 15782, Santiago de Compostela, Spain
| | - Alberto Lema
- Departamento de Microbiología Y Parasitología, CRETUS & CIBUS-Facultad de Biología, Universidade de Santiago de Compostela, Campus Vida s/n, 15782, Santiago de Compostela, Spain
| | - Jesús L Romalde
- Departamento de Microbiología Y Parasitología, CRETUS & CIBUS-Facultad de Biología, Universidade de Santiago de Compostela, Campus Vida s/n, 15782, Santiago de Compostela, Spain.
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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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8
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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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9
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Brown BRP, Nunez JCB, Rand DM. Characterizing the cirri and gut microbiomes of the intertidal barnacle Semibalanus balanoides. Anim Microbiome 2020; 2:41. [PMID: 33499976 PMCID: PMC7807441 DOI: 10.1186/s42523-020-00058-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 10/16/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Natural populations inhabiting the rocky intertidal experience multiple ecological stressors and provide an opportunity to investigate how environmental differences influence microbiomes over small geographical scales. However, very few microbiome studies focus on animals that inhabit the intertidal. In this study, we investigate the microbiome of the intertidal barnacle Semibalanus balanoides. We first describe the microbiome of two body tissues: the feeding appendages, or cirri, and the gut. Next, we examine whether there are differences between the microbiome of each body tissue of barnacles collected from the thermally extreme microhabitats of the rocky shores' upper and lower tidal zones. RESULTS Overall, the microbiome of S. balanoides consisted of 18 phyla from 408 genera. Our results showed that although cirri and gut microbiomes shared a portion of their amplicon sequence variants (ASVs), the microbiome of each body tissue was distinct. Over 80% of the ASVs found in the cirri were also found in the gut, and 44% of the ASVs found in the gut were also found in the cirri. Notably, the gut microbiome was not a subset of the cirri microbiome. Additionally, we identified that the cirri microbiome was responsive to microhabitat differences. CONCLUSION Results from this study indicate that S. balanoides maintains distinct microbiomes in its cirri and gut tissues, and that the gut microbiome is more stable than the cirri microbiome between the extremes of the intertidal.
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Affiliation(s)
- Bianca R P Brown
- Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman St., Providence, RI, 02912, USA.
- Institute at Brown for Environment and Society, Brown University, 85 Waterman St., Providence, RI, 02912, USA.
| | - Joaquin C B Nunez
- Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman St., Providence, RI, 02912, USA
- Department of Biology, University of Virginia, 485 McCormick Road, Charlottesville, VA, 22904, USA
| | - David M Rand
- Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman St., Providence, RI, 02912, USA.
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10
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Musella M, Wathsala R, Tavella T, Rampelli S, Barone M, Palladino G, Biagi E, Brigidi P, Turroni S, Franzellitti S, Candela M. Tissue-scale microbiota of the Mediterranean mussel (Mytilus galloprovincialis) and its relationship with the environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:137209. [PMID: 32084687 DOI: 10.1016/j.scitotenv.2020.137209] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/07/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
In this study, we characterize the structural variation of the microbiota of Mytilus galloprovincialis at the tissue scale, also exploring the connection with the microbial ecosystem of the surrounding water. Mussels were sampled within a farm located in the North-Western Adriatic Sea and microbiota composition was analyzed in gills, hemolymph, digestive glands, stomach and foot by Next Generation Sequencing marker gene approach. Mussels showed a distinctive microbiota structure, with specific declinations at the tissue level. Indeed, each tissue is characterized by a distinct pattern of dominant families, reflecting a peculiar adaptation to the respective tissue niche. For instance, the microbiota of the digestive gland is characterized by Ruminococcaceae and Lachnospiraceae, being shaped to ferment complex polysaccharides of dietary origin into short-chain fatty acids, well matching the general asset of the animal gut microbiota. Conversely, the gill and hemolymph ecosystems are dominated by marine microorganisms with aerobic oxidative metabolism, consistent with the role played by these tissues as an interface with the external environment. Our findings highlight the putative importance of mussel microbiota for different aspects of host physiology, with ultimate repercussions on mussel health and productivity.
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Affiliation(s)
- Margherita Musella
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Rasika Wathsala
- Animal and Environmental Physiology Laboratory, Department of Biological, Geological and Environmental Sciences (BiGeA), University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy
| | - Teresa Tavella
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Simone Rampelli
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Monica Barone
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Giorgia Palladino
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Elena Biagi
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Patrizia Brigidi
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Turroni
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Franzellitti
- Animal and Environmental Physiology Laboratory, Department of Biological, Geological and Environmental Sciences (BiGeA), University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy.
| | - Marco Candela
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
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11
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Rossbach S, Cardenas A, Perna G, Duarte CM, Voolstra CR. Tissue-Specific Microbiomes of the Red Sea Giant Clam Tridacna maxima Highlight Differential Abundance of Endozoicomonadaceae. Front Microbiol 2019; 10:2661. [PMID: 31849854 PMCID: PMC6901920 DOI: 10.3389/fmicb.2019.02661] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 10/31/2019] [Indexed: 02/01/2023] Open
Abstract
Giant clams (subfamily Tridacninae) are prevalent members of coral reef communities and engage in symbioses with algal photosymbionts of the family Symbiodiniaceae, similar to their scleractinian coral counterparts. However, we know little about their associated bacterial microbiome members. Here, we explored bacterial community diversity of digestive system, gill, and mantle tissues associated with the giant clam Tridacna maxima across a cross-shelf gradient (inshore, midshore, and offshore reef sites) in the central Red Sea using 16S rRNA gene amplicon sequencing. Different tissues harbor spatially stable and distinct microbial communities. Notably, diverse assemblages of bacteria affiliated to the family Endozoicomonadaceae were prevalent in all tissues, but particularly abundant in gills and to a lesser extent in digestive tissues. Besides Endozoicomonadaceae, bacteria in the families Pasteurellaceae, Alteromonadaceae, and Comamonadaceae were common associates, depending on the tissue queried. Taxonomy-based functional inference identified processes related to nitrogen cycling (among others) to be enriched in giant clam tissues and contributed by Endozoicomonadaceae. Our study highlights the tissue-specificity and broad taxonomic range of Endozoicomonadaceae associates, similar to other marine invertebrates, and suggests their contribution to nitrogen-related pathways. The investigation of bivalve-associated microbiome communities provides an important addition to the pathogen-focused studies for commercially important bivalves (e.g., oysters).
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Affiliation(s)
- Susann Rossbach
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Anny Cardenas
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Gabriela Perna
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Carlos M Duarte
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Christian R Voolstra
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.,Department of Biology, University of Konstanz, Konstanz, Germany
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12
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Yu Z, Liu C, Fu Q, Lu G, Han S, Wang L, Song L. The differences of bacterial communities in the tissues between healthy and diseased Yesso scallop (Patinopecten yessoensis). AMB Express 2019; 9:148. [PMID: 31522290 PMCID: PMC6745042 DOI: 10.1186/s13568-019-0870-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 08/30/2019] [Indexed: 02/02/2023] Open
Abstract
The tissues of marine invertebrates are colonized by species-rich microbial communities. The dysbiosis of host's microbiota is tightly associated with the invertebrate diseases. Yesso scallop (Patinopecten yessoensis), one of the most important maricultured scallops in northern China, has recently suffered massive summer mortalities, which causes huge production losses. The knowledge about the interactions between the Yesso scallop and its microbiota is important to develop the strategy for the disease prevention and control. In the present study, the bacterial communities in hemolymph, intestine, mantle and adductor muscle were compared between the healthy and diseased Yesso scallop based on the high-throughput sequencing of 16S rRNA gene. The results indicated obvious difference of the composition rather than the diversity of the bacterial communities between the healthy and diseased Yesso scallop. Vibrio, Francisella and Photobacterium were found to overgrow and dominate in the mantle, adductor muscle and intestine of the diseased scallops, respectively. The prediction of bacterial community metagenomes and the variations of KEGG pathways revealed that the proportions of the pathways related with neurodegenerative diseases and carbohydrate metabolism both increased significantly in the mantle and hemolymph of the diseased scallops. The abundance of the metabolism pathways including carbohydrate metabolism, lipid metabolism and amino acid metabolism decreased significantly in the intestine of diseased scallops. The results suggested that the changes of bacterial communities might be closely associated with the Yesso scallop's disease, which was helpful for further investigation of the pathogenesis as well as prevention and control of the disease in Yesso scallop.
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13
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Dubé CE, Ky CL, Planes S. Microbiome of the Black-Lipped Pearl Oyster Pinctada margaritifera, a Multi-Tissue Description With Functional Profiling. Front Microbiol 2019; 10:1548. [PMID: 31333634 PMCID: PMC6624473 DOI: 10.3389/fmicb.2019.01548] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/20/2019] [Indexed: 12/21/2022] Open
Abstract
Elucidating the role of prokaryotic symbionts in mediating host physiology has emerged as an important area of research. Since oysters are the world’s most heavily cultivated bivalve molluscs, numerous studies have applied molecular techniques to understand the taxonomic and functional diversity of their associated bacteria. Here, we expand on this research by assessing the composition and putative functional profiles of prokaryotic communities from different organs/compartments of the black-lipped pearl oyster Pinctada margaritifera, a commercially important shellfish valued for cultured pearl production in the Pacific region. Seven tissues, in addition to mucous secretions, were targeted from P. margaritifera individuals: the gill, gonad, byssus gland, haemolymph, mantle, adductor muscle, mucus, and gut. Richness of bacterial Operational Taxonomic Units (OTUs) and phylogenetic diversity differed between host tissues, with mucous layers displaying the highest richness and diversity. This multi-tissues approach permitted the identification of consistent microbial members, together constituting the core microbiome of P. margaritifera, including Alpha- and Gammaproteobacteria, Flavobacteriia, and Spirochaetes. We also found a high representation of Endozoicimonaceae symbionts, indicating that they may be of particular importance to oyster health, survival and homeostasis, as in many other coral reef animals. Our study demonstrates that the microbial communities and their associated predicted functional profiles are tissue specific. Inferred physiological functions were supported by current physiological data available for the associated bacterial taxa specific to each tissue. This work provides the first baseline of microbial community composition in P. margaritifera, providing a solid foundation for future research into this commercially important species and emphasises the important effects of tissue differentiation in structuring the oyster microbiome.
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Affiliation(s)
- Caroline Eve Dubé
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France.,Laboratoire d'Excellence "CORAIL", Mo'orea, French Polynesia
| | - Chin-Long Ky
- Laboratoire d'Excellence "CORAIL", Mo'orea, French Polynesia.,Ifremer, UMR 241, Centre du Pacifique, Tahiti, French Polynesia.,Ifremer, UMR 5244 Interactions Hôtes Pathogènes Environnements, Université de Montpellier, Montpellier, France
| | - Serge Planes
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France.,Laboratoire d'Excellence "CORAIL", Mo'orea, French Polynesia
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14
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Pathirana E, McPherson A, Whittington R, Hick P. The role of tissue type, sampling and nucleic acid purification methodology on the inferred composition of Pacific oyster (Crassostrea gigas) microbiome. J Appl Microbiol 2019; 127:429-444. [PMID: 31102430 DOI: 10.1111/jam.14326] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/05/2019] [Accepted: 05/13/2019] [Indexed: 01/02/2023]
Abstract
AIMS This study evaluated methods to sample and extract nucleic acids from Pacific oysters to accurately determine the microbiome associated with different tissues. METHODS AND RESULTS Samples were collected from haemolymph, gill, gut and adductor muscle, using swabs and homogenates of solid tissues. Nucleic acids were extracted from fresh and frozen samples using three different commercial kits. The bacterial DNA yield varied between methods (P < 0·05) and each tissue harboured a unique microbiota, except for gill and muscle. Higher bacterial DNA yields were obtained by swabbing compared to tissue homogenates and from fresh tissues compared to frozen tissues, without impacting the bacterial community composition estimated by 16S rRNA gene (V1-V3 region) sequencing. Despite the higher bacterial DNA yields with QIAamp® DNA Microbiome Kit, the E.Z.N.A.® Mollusc DNA Kit identified twice as many operational taxonomic units (OTUs) and eliminated PCR inhibition from gut tissues. CONCLUSIONS Sampling and nucleic acid purification substantially affected the quantity and diversity of bacteria identified in Pacific oyster microbiome studies and a fit-for-purpose strategy is recommended. SIGNIFICANCE AND IMPACT OF THE STUDY Accurate identification of Pacific oyster microbial diversity is instrumental for understanding the polymicrobial aetiology of Pacific oyster mortality diseases which greatly impact oyster production.
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Affiliation(s)
- E Pathirana
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW, Australia
| | - A McPherson
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW, Australia
| | - R Whittington
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW, Australia
| | - P Hick
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW, Australia
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15
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Milan M, Carraro L, Fariselli P, Martino ME, Cavalieri D, Vitali F, Boffo L, Patarnello T, Bargelloni L, Cardazzo B. Microbiota and environmental stress: how pollution affects microbial communities in Manila clams. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 194:195-207. [PMID: 29202271 DOI: 10.1016/j.aquatox.2017.11.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/13/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
Given the crucial role of microbiota in host development, health, and environmental interactions, genomic analyses focusing on host-microbiota interactions should certainly be considered in the investigation of the adaptive mechanisms to environmental stress. Recently, several studies suggested that microbiota associated to digestive tract is a key, although still not fully understood, player that must be considered to assess the toxicity of environmental contaminants. Bacteria-dependent metabolism of xenobiotics may indeed modulate the host toxicity. Conversely, environmental variables (including pollution) may alter the microbial community and/or its metabolic activity leading to host physiological alterations that may contribute to their toxicity. Here, 16s rRNA gene amplicon sequencing has been applied to characterize the hepatopancreas microbiota composition of the Manila clam, Ruditapes philippinarum. The animals were collected in the Venice lagoon area, which is subject to different anthropogenic pressures, mainly represented by the industrial activities of Porto Marghera (PM). Seasonal and geographic differences in clam microbiotas were explored and linked to host response to chemical stress identified in a previous study at the transcriptome level, establishing potential interactions among hosts, microbes, and environmental parameters. The obtained results showed the recurrent presence of putatively detoxifying bacterial taxa in PM clams during winter and over-representation of several metabolic pathways involved in xenobiotic degradation, which suggested the potential for host-microbial synergistic detoxifying actions. Strong interaction between seasonal and chemically-induced responses was also observed, which partially obscured such potentially synergistic actions. Seasonal variables and exposure to toxicants were therefore shown to interact and substantially affect clam microbiota, which appeared to mirror host response to environmental variation. It is clear that understanding how animals respond to chemical stress cannot ignore a key component of such response, the microbiota.
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Affiliation(s)
- M Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy; CONISMA - Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - L Carraro
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy
| | - P Fariselli
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy
| | - M E Martino
- Institut de Génomique Fonctionnelle de Lyon (IGFL), Ecole Normale Supérieure de Lyon, CNRS UMR 5242, Université Claude Bernard Lyon, Lyon, France
| | - D Cavalieri
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - F Vitali
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - L Boffo
- Associazione "Vongola Verace di Chioggia", Italy
| | - T Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy
| | - L Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy; CONISMA - Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - B Cardazzo
- Department of Comparative Biomedicine and Food Science, University of Padova, 35020, Legnaro, Italy
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Leite L, Jude-Lemeilleur F, Raymond N, Henriques I, Garabetian F, Alves A. Phylogenetic diversity and functional characterization of the Manila clam microbiota: a culture-based approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:21721-21732. [PMID: 28766142 DOI: 10.1007/s11356-017-9838-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
According to the hologenome theory, the microbiota contributes to the fitness of the holobiont having an important role in its adaptation, survival, development, health, and evolution. Environmental stress also affects the microbiota and its capability to assist the holobiont in coping with stress factors. Here, we analyzed the diversity of cultivable bacteria associated with Manila clam tissues (mantle, gills, hemolymph) in two non-contaminated sites (Portugal and France) and one metal-contaminated site (Portugal). A total of 240 isolates were obtained. Representative isolates (n = 198) of the overall diversity were identified by 16S rDNA sequencing and subjected to functional characterization. Isolates affiliated with Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes. Proteobacteria (mostly Pseudoalteromonadaceae and Vibrionaceae) were dominant in non-contaminated sites while Actinobacteria (mostly Microbacteriaceae) dominated in the metal-contaminated site. The main factor affecting the microbiota composition was contamination. No significant differences were observed between clam tissues and geographic regions. Several isolates tested positive for antibacterial activity, biofilm formation, protease, and siderophore production. The results show that the Manila clam harbors a diverse microbiota that may contribute to clam protection and overall fitness, as well as to its adaptation to stressful environments. In addition, the Manila clam microbiota is revealed as a promising source of novel probiotics with potential application in aquaculture.
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Affiliation(s)
- Laura Leite
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Florence Jude-Lemeilleur
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Natalie Raymond
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Isabel Henriques
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Frédéric Garabetian
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Artur Alves
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
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Der Sarkissian C, Pichereau V, Dupont C, Ilsøe PC, Perrigault M, Butler P, Chauvaud L, Eiríksson J, Scourse J, Paillard C, Orlando L. Ancient DNA analysis identifies marine mollusc shells as new metagenomic archives of the past. Mol Ecol Resour 2017; 17:835-853. [PMID: 28394451 DOI: 10.1111/1755-0998.12679] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/24/2017] [Accepted: 04/03/2017] [Indexed: 02/05/2023]
Abstract
Marine mollusc shells enclose a wealth of information on coastal organisms and their environment. Their life history traits as well as (palaeo-) environmental conditions, including temperature, food availability, salinity and pollution, can be traced through the analysis of their shell (micro-) structure and biogeochemical composition. Adding to this list, the DNA entrapped in shell carbonate biominerals potentially offers a novel and complementary proxy both for reconstructing palaeoenvironments and tracking mollusc evolutionary trajectories. Here, we assess this potential by applying DNA extraction, high-throughput shotgun DNA sequencing and metagenomic analyses to marine mollusc shells spanning the last ~7,000 years. We report successful DNA extraction from shells, including a variety of ancient specimens, and find that DNA recovery is highly dependent on their biomineral structure, carbonate layer preservation and disease state. We demonstrate positive taxonomic identification of mollusc species using a combination of mitochondrial DNA genomes, barcodes, genome-scale data and metagenomic approaches. We also find shell biominerals to contain a diversity of microbial DNA from the marine environment. Finally, we reconstruct genomic sequences of organisms closely related to the Vibrio tapetis bacteria from Manila clam shells previously diagnosed with Brown Ring Disease. Our results reveal marine mollusc shells as novel genetic archives of the past, which opens new perspectives in ancient DNA research, with the potential to reconstruct the evolutionary history of molluscs, microbial communities and pathogens in the face of environmental changes. Other future applications include conservation of endangered mollusc species and aquaculture management.
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Affiliation(s)
- Clio Der Sarkissian
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Vianney Pichereau
- Lemar UMR6539 CNRS/UBO/IRD/Ifremer, Université de Brest, IUEM, Plouzané, France
| | | | - Peter C Ilsøe
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Mickael Perrigault
- Lemar UMR6539 CNRS/UBO/IRD/Ifremer, Université de Brest, IUEM, Plouzané, France
| | - Paul Butler
- CGES, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - Laurent Chauvaud
- Lemar UMR6539 CNRS/UBO/IRD/Ifremer, Université de Brest, IUEM, Plouzané, France
| | - Jón Eiríksson
- Institute of Earth Sciences, University of Iceland, Askja, Reykjavík, Iceland
| | - James Scourse
- CGES, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - Christine Paillard
- Lemar UMR6539 CNRS/UBO/IRD/Ifremer, Université de Brest, IUEM, Plouzané, France
| | - Ludovic Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
- Université de Toulouse, University Paul Sabatier (UPS), Laboratoire AMIS, CNRS UMR 5288, Toulouse, France
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Zhang M, Sun Y, Chen L, Cai C, Qiao F, Du Z, Li E. Symbiotic Bacteria in Gills and Guts of Chinese Mitten Crab (Eriocheir sinensis) Differ from the Free-Living Bacteria in Water. PLoS One 2016; 11:e0148135. [PMID: 26820139 PMCID: PMC4731060 DOI: 10.1371/journal.pone.0148135] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/13/2016] [Indexed: 02/07/2023] Open
Abstract
Aquatic animals have a close relationship with water, but differences in their symbiotic bacteria and the bacterial composition in water remains unclear. Wild or domestic Chinese mitten crabs (Eriocheir sinensis) and the water in which they live were collected from four sampling sites in Jiangsu and Shanghai, China. Bacterial composition in water, gills or guts of E. sinensis, were compared by high-throughput sequencing using 16S rRNA genes. Analysis of >660,000 sequences indicated that bacterial diversity was higher in water than in gills or guts. Tenericutes and Proteobacteria were dominant phyla in guts, while Actinobacteria, Proteobacteria and Bacteroidetes were dominant in gills and water. Non-metric multidimensional scaling analysis indicated that microbiota from gills, guts or water clearly separated into three groups, suggesting that crabs harbor a more specific microbial community than the water in which they live. The dominant OTUs in crab gut were related to Mycoplasmataceae, which were low in abundance in gills, showing that, like mammals, crabs have body-site specific microbiota. OTUs related to Ilumatobacter and Albimonas, which are commonly present in sediment and seawater, were dominant in gills but almost absent from the sampled water. Considering E. sinensis are bottom-dwelling crustacean and they mate in saline water or seawater, behavior and life cycle of crabs may play an important role in shaping the symbiotic bacterial pattern. This study revealed the relationship between the symbiotic bacteria of Chinese mitten crab and their habitat, affording information on the assembly factors of commensal bacteria in aquatic animals.
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Affiliation(s)
- Meiling Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
- * E-mail: (MLZ); (ECL)
| | - Yuhong Sun
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Liqiao Chen
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Chunfang Cai
- School of Biology & Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Fang Qiao
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Zhenyu Du
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Erchao Li
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai 200241, China
- * E-mail: (MLZ); (ECL)
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Lokmer A, Kuenzel S, Baines JF, Wegner KM. The role of tissue-specific microbiota in initial establishment success of Pacific oysters. Environ Microbiol 2016; 18:970-87. [DOI: 10.1111/1462-2920.13163] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 11/27/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Ana Lokmer
- Helmholtz Centre for Polar and Marine Research; Alfred Wegener Institute; Coastal Ecology; Wadden Sea Station Sylt; List Sylt Germany
| | - Sven Kuenzel
- Max Planck Institute for Evolutionary Biology; August-Thienemann-Strasse 2 D-24306 Plön Germany
| | - John F. Baines
- Max Planck Institute for Evolutionary Biology; August-Thienemann-Strasse 2 D-24306 Plön Germany
- Institute for Experimental Medicine; Christian-Albrechts-University of Kiel; Arnold-Heller-Strasse 3 D-24105 Kiel Germany
| | - Karl Mathias Wegner
- Helmholtz Centre for Polar and Marine Research; Alfred Wegener Institute; Coastal Ecology; Wadden Sea Station Sylt; List Sylt Germany
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