Consulta: creatorFacets:"Le Chevalier, Patrick"
Registros recuperados: 3
Data/hora: 11/06/2024 03:43:24

Alterins Produced by Oyster-Associated Pseudoalteromonas are Antibacterial Cyclolipopeptides with LPS-Binding Activity
Provedor de dados: 5
Autores: Desriac, Florie; El Harras, Abderrafek; Simon, Matthieu; Bondon, Arnaud; Brillet, Benjamin; Le Chevalier, Patrick; Pugnière, Martine; Got, Patrice; Destoumieux-garzón, Delphine; Fleury, Yannick.
Discovery after discovery, host-associated microbiota reveal a growing list of positive effects on host homeostasis by contributing to host nutrition, improving hosts’ immune systems and protecting hosts against pathogens. In that context, a collection of oyster associated bacteria producing antibacterial compounds have been established to evaluate their role in non-host-derived immunity. Here, we described alterins; potent anti-Gram negative compounds produced by Pseudoalteromonas hCg-6 and hCg-42 isolated from different healthy oyster hemolymph. The strains hCg-6 and hCg-42 produce a set of at least seven antibacterial compounds, ranging from 926 to 982 Da structurally characterized as cyclolipopeptides (CLPs). Alterins share the same cationic...
Tipo: Text
Palavras-chave: Pseudoalteromonas; Cyclolipopeptides; Alterin; Antibiotic.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00663/77511/79275.pdf

Vibriosis in bivalves : review of recent molecular, biochemical, and physiological studies
Provedor de dados: 5
Autores: Paillard, Christine; Nicolas, Jean-louis; Le Chevalier, Patrick; Lambert, Christophe; Le Boulay, Christine; Berthe, Franck; Haras, Dominique.
The emergence of new vibriosis in the European Atlantic coasts has been associated with mass mortalities of molluscs causing important economic losses. For examples, Vibrio carchariae, a bacteria already isolated from shark, has been associated with a severe Haliotis epizooty in hatchery. In oysters, Crass()strea gigas, a strain closely related to Vibrio splendidus is suspected to be associated with summer mortalities.
Tipo: Text
Palavras-chave: Pathogenic vibrios; Bivales; Vibriosis; Bacteriology.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3287.pdf

Vibrio tapetis Displays an Original Type IV Secretion System in Strains Pathogenic for Bivalve Molluscs
Provedor de dados: 5
Autores: Dias, Graciela M.; Bidault, Adeline; Le Chevalier, Patrick; Choquet, Gwenaelle; Sarkissian, Clio Der; Orlando, Ludovic; Medigue, Claudine; Barbe, Valerie; Mangenot, Sophie; Thompson, Cristiane C.; Thompson, Fabiano L.; Jacq, Annick; Pichereau, Vianney; Paillard, Christine.
The Brown Ring Disease (BRD) caused high mortality rates since 1986 in the Manila clam Venerupis philippinarum introduced and cultured in Western Europe from the 1970s. The causative agent of BRD is a Gram-Negative bacterium, Vibrio tapetis, which is also pathogenic to fish. Here we report the first assembly of the complete genome of V. tapetis CECT4600T, together with the genome sequences of 16 additional strains isolated across a broad host and geographic range. Our extensive genome dataset allowed us to describe the pathogen pan-and core genomes and to identify putative virulence factors. The V. tapetis core genome consists of 3,352 genes, including multiple potential virulence factors represented by haemolysins, transcriptional regulators, Type I...
Tipo: Text
Palavras-chave: Vibrio tapetis; Venerupis philippinarum; Comparative genomics; Pathogenicity; T4SS; Pangenome; Core genome.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00429/54077/72091.pdf