Data/hora: 08/06/2024 17:33:14

Provedor de dados: 	5	
País: 	France	
Título: 	Resistance of the oyster pathogen   Vibrio tasmaniensis   LGP32 against grazing by   Vannella sp   . marine amoeba involves Vsm and CopA virulence factors	
Autores: 	Robino, Etienne; Poirier, Aurore C.; Amraoui, Hajar; Le Bissonnais, Sandra; Perret, Angelique; Lopez‐joven, Carmen; Auguet, Jean-christophe; Rubio, Tristan P.; Cazevieille, Chantal; Rolland, Jean-luc; Héchard, Yann; Destoumieux‐garzón, Delphine; Charrière, Guillaume.	
Data: 	2020-10	
Ano: 	2020	
Resumo: 	ibrios are ubiquitous in marine environments and opportunistically colonize a broad range of hosts. Strains of Vibrio tasmaniensis present in oyster farms can thrive in oysters during juvenile mortality events and behave as facultative intracellular pathogen of oyster hemocytes. Herein, we wondered whether V. tasmaniensis LGP32 resistance to phagocytosis is specific to oyster immune cells or contributes to resistance to other phagocytes, like marine amoebae. To address this question, we developed an integrative study, from the first description of amoeba diversity in oyster‐farms to the characterization of LGP32 interactions with amoebae. An isolate of the Vannella genus, Vannella sp. AP1411, which was collected from oyster farms, is ubiquitous, and belongs to one clade of Vannella that could be found associated with Vibrionaceae. LGP32 was shown to be resistant to grazing by Vannella sp. AP1411 and this phenotype depends on some previously identified virulence factors: secreted metalloprotease Vsm and copper efflux p‐ATPase CopA, which act at different steps during amoeba‐vibrio interactions, whereas some other virulence factors were not involved. Altogether, our work indicate that some virulence factors can by involved in multi‐host interactions of V. tasmaniensis ranging from protozoans to metazoans, potentially favoring their opportunistic behavior.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00509/62109/66292.pdf

DOI:10.1111/1462-2920.14770

https://archimer.ifremer.fr/doc/00509/62109/	
Editor: 	Wiley	
Relação: 	info:eu-repo/grantAgreement/EC/FP7/678589/EU//VIVALDI	
Formato: 	application/pdf	
Fonte: 	Environmental Microbiology (1462-2912) (Wiley), 2020-10 , Vol. 22 , N. 10 , P. 4183-4197	
Fonte: 	info:eu-repo/semantics/openAccess

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