Consulta: creatorFacets:"Jumas-bilak, Estelle"
Registros recuperados: 3
Data/hora: 06/06/2024 08:28:36

Rapid proliferation of Vibrio parahaemolyticus, Vibrio vulnificus and Vibrio cholerae during freshwater flash floods in French Mediterranean coastal lagoons
Provedor de dados: 5
Autores: Esteves, Kevin; Hervio-heath, Dominique; Mosser, Thomas; Rodier, Claire; Tournoud, Marie-george; Jumas-bilak, Estelle; Colwell, Rita R.; Monfort, Patrick.
V. parahaemolyticus, V. vulnificus and V. cholerae non-O1/non-O139 are present in coastal lagoons of Southern France. In these Mediterranean regions, the rivers have long low flow periods followed by short-duration or flash floods during and after heavy intense rainstorms, particularly at the end of the summer and in autumn. These floods bring large volumes of freshwater into the lagoons, reducing their salinity. Water temperatures recorded during sampling (15°C to 24°C) were favorable for presence and multiplication of vibrios. In autumn 2011, before heavy rainfalls and flash floods, salinities ranged from 31.4‰ to 36.1‰ and concentrations of V. parahaemolyticus, V. vulnificus, and V. cholerae varied from 0 to 1.5 X 103 MPN (Most Probable Number)/L, 0.7...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00279/39038/37584.pdf

Highly diverse recombining populations of Vibrio cholerae and Vibrio parahaemolyticus in French Mediterranean coastal lagoons
Provedor de dados: 5
Autores: Esteves, Kevin; Mosser, Thomas; Aujoulat, Fabien; Hervio-heath, Dominique; Monfort, Patrick; Jumas-bilak, Estelle.
Vibrio parahaemolyticus and Vibrio cholerae are ubiquitous to estuarine and marine environments. Thes two species found in Mediterranean coastal systems can induce infection in humans. Environmental isolates of V. cholerae (n = 109) and V. parahaemotycius (n = 89) sampled at different dates, stations and water salinities were investigated for virulence genes and by a mutilocus sequence-based analysis (MLSA). V. cholerae isolate were all ctxA negative and only one isolate of V. parahaemolyticus displayed trh2 gene. Most Sequence Types (ST) corresponded to uique ST isolated at one date or one station. Frequent recombination events were detected among different pathogenic species, V. parahaemotyticus, V. cholerae, Vibrio mimicus, and Vibrio metoecus....
Tipo: Text
Palavras-chave: Vibrio; Human pathogens; French coastal lagoons; Phylogeny; Recombination; Multi-locus sequence analysis; Virulence factor.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38528/37039.pdf

Inefficient immune response is associated with microbial permissiveness in juvenile oysters affected by mass mortalities on field
Provedor de dados: 5
Autores: De Lorgeril, Julien; Escoubas, Jean Michel; Loubiere, Vincent; Pernet, Fabrice; Le Gall, Patrik; Vergnes, Agnes; Aujoulat, Fabien; Jeannot, Jean-luc; Jumas-bilak, Estelle; Got, Patrice; Gueguen, Yannick; Destoumieux-garzon, Delphine; Bachere, Evelyne.
Since 2008, juvenile Crassostrea gigas oysters have suffered from massive mortalities in European farming areas. This disease of complex etiology is still incompletely understood. Triggered by an elevated seawater temperature, it has been associated to infections by a herpes virus named OsHV-1 as well as pathogenic vibrios of the Splendidus clade. Ruling out the complexity of the disease, most of our current knowledge has been acquired in controlled experiments. Among the many unsolved questions, it is still ignored what role immunity plays in the capacity oysters have to survive an infectious episode. Here we show that juvenile oysters susceptible to the disease mount an inefficient immune response associated with microbial permissiveness and death. We...
Tipo: Text
Palavras-chave: Host pathogen interaction; Innate immunity; Invertebrate; Mollusk; In situ mortality; Total bacteria; Crassostrea gigas.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00433/54470/55845.pdf