Detection of type 1 fimbrial genes in fish pathogenic and non-pathogenic Edwardsiella tarda strains by PCR

Presence of fimbrial genes among fish pathogenic and non-pathogenic strains of Edwardsiella tarda was investigated by polymerase chain reaction (PCR). Four primer sets for PCR were designed to detect the four genes (etfA, etfB, etfC, etfD) of the type 1 fimbrial gene cluster of E. tarda. All the fou...

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Veröffentlicht in:Fish Pathology 2007, Vol.42(2), pp.115-117
Hauptverfasser: Sakai, T.(National Research Inst. of Aquaculture, Minami-Ise, Mie (Japan)), Iida, T, Osatomi, K, Kanai, K
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container_end_page 117
container_issue 2
container_start_page 115
container_title Fish Pathology
container_volume 42
creator Sakai, T.(National Research Inst. of Aquaculture, Minami-Ise, Mie (Japan))
Iida, T
Osatomi, K
Kanai, K
description Presence of fimbrial genes among fish pathogenic and non-pathogenic strains of Edwardsiella tarda was investigated by polymerase chain reaction (PCR). Four primer sets for PCR were designed to detect the four genes (etfA, etfB, etfC, etfD) of the type 1 fimbrial gene cluster of E. tarda. All the four genes were successfully amplified with the four primer sets in all the pathogenic strains. On the other hand, any of etfA, etfB and etfC were not detected in 13 of 14 non-pathogenic strains. The results suggest that fimbriae play a role in the pathogenicity of E. tarda and that detection of etfA, etfB and etfC by PCR is useful to distinguish between pathogenic and non-pathogenic strains of E. tarda.
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subjects AGGLUTININE
AGGLUTININS
AGLUTININAS
EDWARDSIELLA
Edwardsiella tarda
edwardsiellosis
FISHES
GENE
GENES
PATHOGENICITY
PATOGENICIDAD
PCR
PECES
POISSON (ANIMAL)
POUVOIR PATHOGENE
type 1 fimbrial gene
title Detection of type 1 fimbrial genes in fish pathogenic and non-pathogenic Edwardsiella tarda strains by PCR
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