Data/hora: 09/06/2024 10:39:37

Provedor de dados: | 5
País: | France

Título:

Évolution de la virulence de V. crassostreae en lien avec l’huître en tant qu’hôte et les phages en tant que prédateurs

Evolution of Vibrio crassostreae virulence in relation to the oyster as a host and phages as predators

Autores: | Piel, Damien.
Data: | 2019-12-10
Ano: | 2019
Palavras-chave: | Vibrio; Interactions hôte/parasite; Emergence de pathogènes; Bactériophages; V. crassostreae; Mécanismes moléculaires; Vibrio; Host/parasite interactions; Pathogen emergence; Bacteriophages.
Resumo: | Understanding the ecological and evolutionary dynamics of infectious agents is important for diagnosing, predicting and preventing diseases in farmed and wild species. This project was aimed at studying the evolution of V. crassostreae virulence in relation to the oyster as a host and to the phages as predators. We identified the molecular mechanisms leading to the adaptation of vibrios to oysters. We demonstrated the emergence of virulent strains of V. crassostreae in the area impacted by the juvenile oyster mortality syndrome. The emergence of more virulent V. crassostreae strains is linked to the acquisition of a plasmid encoding a type 6 secretion system responsible for lethal activity towards oyster hemocytes. This project also provides knowledge on the interactions between V. crassostreae and phages such as the identification of the predation unit as well as potential mechanisms involved in strain resistance and phage virulence. This represents a first step towards the development of prophylactic ecofriendly strategies.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00690/80203/83289.pdf

https://archimer.ifremer.fr/doc/00690/80203/

Editor: | Université Sorbonne
Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

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