Virulence studies based on plasmid profiles of the fish pathogen Vibrio salmonicida
نویسندگان
چکیده
منابع مشابه
A novel lux operon in the cryptically bioluminescent fish pathogen Vibrio salmonicida is associated with virulence.
The cold-water-fish pathogen Vibrio salmonicida expresses a functional bacterial luciferase but produces insufficient levels of its aliphatic-aldehyde substrate to be detectably luminous in culture. Our goals were to (i) better explain this cryptic bioluminescence phenotype through molecular characterization of the lux operon and (ii) test whether the bioluminescence gene cluster is associated ...
متن کاملComplete sequence of virulence plasmid pJM1 from the marine fish pathogen Vibrio anguillarum strain 775.
The virulence plasmid pJM1 enables the fish pathogen Vibrio anguillarum, a gram-negative polarly flagellated comma-shaped rod bacterium, to cause a highly fatal hemorrhagic septicemic disease in salmonids and other fishes, leading to epizootics throughout the world. The pJM1 plasmid 65,009-nucleotide sequence, with an overall G+C content of 42.6%, revealed genes and open reading frames (ORFs) e...
متن کاملDevelopment of a gene transfer system for curing of plasmids in the marine fish pathogen Vibrio salmonicida.
All reported natural isolates of the marine fish pathogen Vibrio salmonicida contain plasmids, and in another marine fish pathogen, Vibrio anguillarum, it has been shown that a plasmid is important for expression of virulence by the organism. To study the function of the plasmids in V. salmonicida, we developed a gene transfer system based on the plasmid RSF1010 replicon. The gene transfer syst...
متن کاملSurvival of the fish pathogen Aeromonas salmonicida in seawater.
Survival of Aeromonas salmonicida in natural (non-sterile) seawater, as determined from colony counts on marine agar, was found to be influenced by the presence of potentially inhibitory organisms, i.e., Acinetobacter, Aeromonas hydrophila, Chromobacterium, Escherichia coli, Flavobacterium and Pseudomonas, and their metabolites. Yet, samples, thought to be devoid of culturable A. salmonicida, w...
متن کاملHigh frequency transfer of a broad host range plasmid present in an atypical strain of the fish pathogen Aeromonas salmonicida
We have demonstrated transfer of a naturally occurring plasmid (pRASl), encoding multiple resistance, from atyp~cal Aerornonas salmonicida strain 718 to a variety of marine bacteria. This plasmid exh~bited a broader host range and a generally higher transfer frequency when compared to the promiscuous plasmid RP4 originating from a hospital isolate of Pseudornonas aeruginosa. The plasmid pRASl w...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1989
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.55.4.819-825.1989