Ultrastructure of Mycobacterium marinum granuloma in striped bass Morone saxatilis
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منابع مشابه
Ultrastructure of Mycobacterium marinum granuloma in striped bass Morone saxatilis.
An emerging epizootic of mycobacteriosis currently threatens striped bass Morone saxatilis populations in Chesapeake Bay, USA. Several species of mycobacteria, including Mycobacterium marinum, species resembling M. avium, M. gordonae, M. peregrinum, M. scrofulaceum and M. terrae, and the new species M. shottsii have been isolated from diseased and healthy bass. In this study, we describe the ul...
متن کاملShort-term infection of striped bass Morone saxatilis with Mycobacterium marinum.
Striped bass Morone saxatilis were studied in order to characterize their immune responses over the short term following challenge with Mycobacterium marinum. The expression of immunity-related genes (IL-1beta, TNF-alpha, Nramp and TGF-beta) quickly increased following infection with M. marinum, but these genes were subsequently down-regulated despite the fact that bacterial counts remained hig...
متن کاملMycobacterium-inducible Nramp in striped bass (Morone saxatilis).
In mammals, the natural resistance-associated macrophage protein 1 gene, Nramp1, plays a major role in resistance to mycobacterial infections. Chesapeake Bay striped bass (Morone saxatilis) is currently experiencing an epizootic of mycobacteriosis that threatens the health of this ecologically and economically important species. In the present study, we characterized an Nramp gene in this speci...
متن کاملExperimental mycobacteriosis in striped bass Morone saxatilis.
Striped bass Morone saxatilis were infected intraperitoneally with approximately 10(5) Mycobacterium marinum, M. shottsii sp. nov., or M. gordonae. Infected fish were maintained in a flow-through freshwater system at 18 to 21 degrees C, and were examined histologically and bacteriologically at 2, 4, 6, 8, 17, 26, 36 and 45 wk post-infection (p.i.). M. marinum caused acute peritonitis, followed ...
متن کاملImmune and histopathologic responses of DNA-vaccinated hybrid striped bass Morone saxatilis x M. chrysops after acute Mycobacterium marinum infection.
The post-challenge immune and histopathologic responses of hybrid striped bass vaccinated with a DNA vaccine encoding the Mycobacterium marinum Ag85A gene and subsequently challenged with M. marinum were investigated. Juvenile hybrid striped bass Morone saxatilis x M. chrysops were injected intramuscularly with 25 or 50 microg DNA plasmid and developed significant specific protective responses ...
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ژورنال
عنوان ژورنال: Diseases of Aquatic Organisms
سال: 2004
ISSN: 0177-5103,1616-1580
DOI: 10.3354/dao062121