| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Oyster hemolymph is a complex and dynamic ecosystem hosting bacteria, protists and viruses
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| Autores: |
Dupont, Samuel
Lokmer, A.
Corre, E.
Auguet, Jean-christophe
Petton, Bruno
Toulza, E.
Montagnani, Caroline
Tanguy, G.
Pecqueur, D.
Salmeron, C.
Guillou, L.
Desnues, C.
La Scola, B.
Bou Khalil, J.
De Lorgeril, Julien
Mitta, Guillaume
Gueguen, Yannick
Escoubas, Jean Michel
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| Data: |
2020-12
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| Ano: |
2020
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| Palavras-chave: |
Oyster genetic background
Hemolymph microbiota dynamics
Early-life microbiota
Trans-kingdom interactions
Crassostrea gigas
Within-host ecosystem
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| Resumo: |
Background The impact of the microbiota on host fitness has so far mainly been demonstrated for the bacterial microbiome. We know much less about host-associated protist and viral communities, largely due to technical issues. However, all microorganisms within a microbiome potentially interact with each other as well as with the host and the environment, therefore likely affecting the host health. Results We set out to explore how environmental and host factors shape the composition and diversity of bacterial, protist and viral microbial communities in the Pacific oyster hemolymph, both in health and disease. To do so, five oyster families differing in susceptibility to the Pacific oyster mortality syndrome were reared in hatchery and transplanted into a natural environment either before or during a disease outbreak. Using metabarcoding and shotgun metagenomics, we demonstrate that hemolymph can be considered as an ecological niche hosting bacterial, protist and viral communities, each of them shaped by different factors and distinct from the corresponding communities in the surrounding seawater. Overall, we found that hemolymph microbiota is more strongly shaped by the environment than by host genetic background. Co-occurrence network analyses suggest a disruption of the microbial network after transplantation into natural environment during both non-infectious and infectious periods. Whereas we could not identify a common microbial community signature for healthy animals, OsHV-1 μVar virus dominated the hemolymph virome during the disease outbreak, without significant modifications of other microbiota components. Conclusion Our study shows that oyster hemolymph is a complex ecosystem containing diverse bacteria, protists and viruses, whose composition and dynamics are primarily determined by the environment. However, all of these are also shaped by oyster genetic backgrounds, indicating they indeed interact with the oyster host and are therefore not only of transient character. Although it seems that the three microbiome components respond independently to environmental conditions, better characterization of hemolymph-associated viruses could change this picture.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00627/73916/73254.pdf
https://archimer.ifremer.fr/doc/00627/73916/73258.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73259.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73260.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73261.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73262.pptx
https://archimer.ifremer.fr/doc/00627/73916/73263.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73264.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73265.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73266.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73267.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73268.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73269.xlsx
https://archimer.ifremer.fr/doc/00627/73916/73270.xlsx
DOI:10.1186/s42523-020-00032-w
https://archimer.ifremer.fr/doc/00627/73916/
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| Editor: |
Springer Science and Business Media LLC
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| Relação: |
info:eu-repo/grantAgreement/EC/FP7/678589/EU//VIVALDI
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| Formato: |
application/pdf
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| Fonte: |
Animal Microbiome (2524-4671) (Springer Science and Business Media LLC), 2020-12 , Vol. 2 , N. 1 , P. 12 (16p.)
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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