Novel non-motile phenotypes of Yersinia ruckeri suggest expansion of the current clonal complex theory

J. W. Tinsley, D. A. Austin, A. R. Lyndon, B. Austin

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    The biochemical and cell surface characteristics of 63 non-motile isolates of Yersinia ruckeri from various sources were compared using the API 20E rapid identification system and conventional phenotypic methods. Eight individual phenotypic groups from a variety of fish species were observed from the data set. Non-motile isolates were not exclusively observed from serogroup O1; membership of biotype 2 was recorded for representatives from serogroups O2-O7. Variations in phenotypes highlights that new clonal groups are arising and that the current typing scheme requires expansion. Previously, it was hypothesized that disease was caused by a few virulent clones; data in this paper suggests that this assumption is not the case. The lipopolysaccharide (O antigen) type in the non-motile biotype was different from other isolates of Y. ruckeri. © 2011 Blackwell Publishing Ltd.

    Original languageEnglish
    Pages (from-to)311-317
    Number of pages7
    JournalJournal of Fish Diseases
    Volume34
    Issue number4
    DOIs
    Publication statusPublished - Apr 2011

    Keywords

    • Biotype 2
    • Enteric redmouth
    • Lipopolysaccharide
    • Non-motile
    • Phenotyping
    • Yersinia ruckeri

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