First report of Yersinia ruckeri biotype 2 in the USA.


Journal Article

A polyphasic characterization of atypical isolates of Yersinia ruckeri (causative agent of enteric redmouth disease in trout) obtained from hatchery-reared brown trout Salmo trutta in South Carolina was performed. The Y. ruckeri isolates were biochemically and genetically distinct from reference cultures, including the type strain, but were unequivocally ascribed to the species Y. ruckeri, based on API 20E, VITEK, fatty acid methyl ester profiles, and 16S rRNA gene sequencing analysis. These isolates were nonmotile and unable to hydrolyze Tween 20/80 and were therefore classified as Y. ruckeri biotype 2. Genetic fingerprint typing of the isolates via enterobacterial repetitive intergenic consensus (amplified by polymerase chain reaction) and fragment length polymorphism showed biotype 2 as a homogeneous group distinguishable from other Y. ruckeri isolates. This is the first report of Y. ruckeri biotype 2 in the USA.

Full Text

Cited Authors

  • Arias, CR; Olivares-Fuster, O; Hayden, K; Shoemaker, CA; Grizzle, JM; Klesius, PH

Published Date

  • March 2007

Published In

Volume / Issue

  • 19 / 1

Start / End Page

  • 35 - 40

PubMed ID

  • 18236630

Pubmed Central ID

  • 18236630

Electronic International Standard Serial Number (EISSN)

  • 1548-8667

International Standard Serial Number (ISSN)

  • 0899-7659

Digital Object Identifier (DOI)

  • 10.1577/h06-011.1


  • eng