Molecular Biology of the Fimbriae of Dichelobacter (Previously Bacteroides) nodosus

  • John S. Mattick
  • Matthew Hobbs
  • Peter T. Cox
  • Brian P. Dalrymple
Part of the Brock/Springer Series in Contemporary Bioscience book series (BROCK/SPRINGER)


Dichelobacter nodosus is a gramnegative anaerobe and the essential causative agent of ovine footrot (Egerton, 1977). Virulent isolates of this organism contain large numbers of fine surface filaments termed fimbriae (or common pili) (Figure 39.1), which have a diameter of about 6 nm and may extend up to several micrometers (µm) in length (Stewart, 1973). In other bacteria such fimbriae have been shown to have adhesive properties (Paranchych and Frost, 1988; Moore and Rutter, 1989; see also following) and to represent a primary mechanism for colonization of animal cell surfaces. Although the exact function of D. nodosus fimbriae has not yet been clearly defined, they appear to play a central role in the invasion by the bacterium of the epidermal matrix of the hoof (see Mattick et al., 1985a).


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Copyright information

© Springer-Verlag New York, Inc. 1993

Authors and Affiliations

  • John S. Mattick
  • Matthew Hobbs
  • Peter T. Cox
  • Brian P. Dalrymple

There are no affiliations available

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