Pathogenic bacteria isolated from disease outbreaks in shellfish hatcheries. First description of Vibrio neptunius as an oyster pathogen.
TLDR
One of the strains investigated was identified as Vibrio neptunius and is the first description of this species as a molluscan pathogen, which may constitute new species within this genus.Abstract:
Shellfish hatcheries are often affected by disease outbreaks. Three such episodes were investigated in different Galician hatcheries in order to establish the relationship between present microbiota and mortalities. Isolates were obtained from various parts of the hatcheries. Experimental tests for pathogenicity were carried out in microscale experiments using selected strains on Ostrea edulis larvae. The pathogenicity of 1 strain from each outbreak was demonstrated and shown to cause high mortalities (ranging from 98.5 to 100%) in 72 to 96 h after inoculation of larval cultures. All 3 strains belong to the genus Vibrio. One of the strains was identified as Vibrio neptunius and is the first description of this species as a molluscan pathogen. The other 2 strains showed low similarity with the Vibrio species analysed and may constitute new species within this genus.read more
Citations
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Antimicrobial Compounds from Eukaryotic Microalgae against Human Pathogens and Diseases in Aquaculture.
Charlotte Falaise,Cyrille Francois,Marie-Agnès Travers,Benjamin Morga,Joel Haure,Réjean Tremblay,François Turcotte,Pamela Pasetto,Romain Gastineau,Yann Hardivillier,Vincent Leignel,Jean-Luc Mouget +11 more
TL;DR: The promising use of microalgae and microalgal compounds as sources of natural antibiotics against human pathogens but also about their potential to limit microbial infections in aquaculture are discussed.
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Diversity and pathogenecity of Vibrio species in cultured bivalve molluscs
TL;DR: An updated overview of the different studies performed in relation with the diversity of Vibrio spp.
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Bacterial diseases in marine bivalves.
TL;DR: An updated overview of main diseases and implicated bacterial species affecting bivalves, their diversity and virulence factors, the diagnostic methods available as well as information on the dynamics of the host-parasite relationship are provided.
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New Vibrio species associated to molluscan microbiota: a review.
TL;DR: An updated overview of the recently characterized Vibrio species isolated from molluscs is provided, and their pathogenic potential and/or environmental importance is discussed.
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The extracellular metalloprotease of Vibrio tubiashii is a major virulence factor for pacific oyster (Crassostrea gigas) larvae.
TL;DR: Structural genes of V. tubiashii encoding a metalloprotease (vtpA) and a hemolysin (vthA) are identified and Sequence analyses revealed that VtpA shared high homology with met alloproteases from a variety of Vibrio species, while VthA showed highhomology only to the cytolysin/hemolysin of VIBrio vulnificus.
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