The flagellar cytoskeleton of the spirochetes

Charles W. Wolgemuth, Nyles W. Charon, Stuart F. Goldstein, Raymond E. Goldstein

Research output: Contribution to journalReview articlepeer-review

68 Scopus citations


The recent discoveries of prokaryotic homologs of all three major eukaryotic cytoskeletal proteins (actin, tubulin, intermediate filaments) have spurred a resurgence of activity in the field of bacterial morphology. In spirochetes, however, it has long been known that the flagellar filaments act as a cytoskeletal protein structure, contributing to their shape and conferring motility on this unique phylum of bacteria. Therefore, revisiting the spirochete cytoskeleton may lead to new paradigms for exploring general features of prokaryotic morphology. This review discusses the role that the periplasmic flagella in spirochetes play in maintaining shape and producing motility. We focus on four species of spirochetes: Borrelia burgdorferi, Treponema denticola, Treponema phagedenis and Leptonema (formerly Leptospira) illini. In spirochetes, the flagella reside in the periplasmic space. Rotation of the flagella in the above species by a flagellar motor induces changes in the cell morphology that drives motility. Mutants that do not produce flagella have a markedly different shape than wild-type cells.

Original languageEnglish (US)
Pages (from-to)221-227
Number of pages7
JournalJournal of Molecular Microbiology and Biotechnology
Issue number3-5
StatePublished - Sep 2006


  • Borrelia burgdorferi
  • Flagellar cytoskeleton
  • Leptonema (formerly leptospira) illini
  • Spirochetes, flageller cytoskeleton
  • Treponema denticola
  • Treponema phagedenis

ASJC Scopus subject areas

  • Biotechnology
  • Microbiology
  • Applied Microbiology and Biotechnology
  • Molecular Biology


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