Freezing induces biased results in the molecular detection of Flavobacterium columnare.
نویسندگان
چکیده
Specific PCR detection and electron microscopy of Flavobacterium columnare revealed the risk of false-negative results in molecular detection of this fish pathogen. Freezing and thawing destroyed the cells so that DNA was for the most part undetectable by PCR. The detection of bacteria was also weakened after prolonged enrichment cultivation of samples from infected fish.
منابع مشابه
Growth and survival of the fish pathogenic bacterium, Flavobacterium columnare, in tilapia mucus and porcine gastric mucin.
Flavobacterium columnare, an economically important Gram-negative bacterium of freshwater farmed fish, colonizes the skin and gills in the initial steps of pathogenesis. The surface of fish is coated with mucus made up of high molecular weight glycoproteins. Limited studies have described the ability of bacterial pathogens to grow in fish mucus. Our objective was to determine if F. columnare is...
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Flavobacterium columnare is a Gram-negative fish pathogen causing columnaris disease in wild and cultured fish species. Although the pathogen is widespread in aquatic environments and fish worldwide, little is known about biology of F. columnare and mechanisms of columnaris disease pathogenesis. Previously we presented the complete genome sequence of F. columnare strain ATCC 49512. Here we pres...
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متن کاملComplete Genome Sequence of the Fish Pathogen Flavobacterium columnare Pf1
Flavobacterium columnare is the etiologic agent of columnaris disease, a devastating fish disease prevailing in worldwide aquaculture industry. Here, we describe the complete genome of F. columnare strain Pf1, a highly virulent strain isolated from yellow catfish (Pelteobagrus fulvidraco) in China.
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عنوان ژورنال:
- Applied and environmental microbiology
دوره 72 2 شماره
صفحات -
تاریخ انتشار 2006