Title :

Impact of epizootics on mussel farms: Insights into microbiota composition of Mytilus species

Author(s) :

Ben Cheikh, Yosra [Auteur]
Stress Environnementaux et BIOsurveillance des milieux aquatiques [SEBIO]
Université Le Havre Normandie [ULH]
Massol, Francois [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Giusti-Petrucciani, Nathalie [Auteur]
Stress Environnementaux et BIOsurveillance des milieux aquatiques [SEBIO]
Travers, Marie-Agnès [Auteur]
Interactions Hôtes-Pathogènes-Environnements [IHPE]

Journal title :

MICROBIOLOGICAL RESEARCH

Pages :

127593

Publisher :

Elsevier

Publication date :

2024

ISSN :

0944-5013

English keyword(s) :

Pathobiome
mussel mortalities
opportunistic bacteria
core microbiome

HAL domain(s) :

Sciences du Vivant [q-bio]/Microbiologie et Parasitologie/Bactériologie
Sciences du Vivant [q-bio]/Biologie animale/Zoologie des invertébrés
Sciences du Vivant [q-bio]/Ecologie, Environnement

English abstract : [en]

Outbreaks of marine mussel mortality on French farms could have different aetiologies. One of them implies Vibrio splendidus strains. Beyond the involvement of this pathogen, there is considerable evidence that diseases ...
Show more >Outbreaks of marine mussel mortality on French farms could have different aetiologies. One of them implies Vibrio splendidus strains. Beyond the involvement of this pathogen, there is considerable evidence that diseases often result from interactions between several microbes and the host. In this study, we explored the bacterial communities associated with mussel species and the surrounding water collected from a mussel farm affected by mortalities. The microbiota of Mytilus edulis, Mytilus galloprovincialis and their hybrids displayed an abnormal abundance of Proteobacteria, in particular the genera Vibrio, Cobetia and Arcobacter. Despite the dysbiosis, the Mediterranean mussel showed a different microbiota profile with a higher richness and presence of the phylum Bacteroidetes. Bipartite network analyses at the level of bacteria families confirmed this finding and showed that the microbiomes of M. edulis and the hybrids tended to cluster together. In addition, injection of mussels with the virulent V. splendidus induced less mortality rate in M. galloprovincialis compared to the other Mytilus sp. suggesting a better resistance of the Mediterranean mussel to infection. Our findings point to a probable aetiology of pathobiome-mediated disease in mussels. To fully understand this phenomenon, more knowledge is needed on the roles of pathobiotic systems and their development during disease establishment.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Centre d'Infection et d'Immunité de Lille (CIIL) - U1019 - UMR 9017

Source :

Harvested from HAL