Capnocytophaga: New genus of Gram-negative gliding bacteria. II. Morphology and ultrastructure

Stanley C. Holt, E. R. Leadbetter, S. S. Socransky

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Gram-negative, anaerobic gliding bacteria were isolated from normal supragingival plaque and from periodontal lesions. Isolates could be divided into two size classes: small 2.4-4.2 μm×0.38-0.5 μm and large 4.8-5.8 μm×0.42-0.6 μm cells. The outer membrane was either loose-fitting and wavy, or taut, and of variable thickness. An electron-dense fuzz was discernible on several of the isolates. The periplasmic region was of variable electron-density. The genus Capnocytophaga has been proposed for these organisms based on morphological and cultural characteristics.

Original languageEnglish (US)
Pages (from-to)17-27
Number of pages11
JournalArchives of Microbiology
Issue number1
StatePublished - Jul 1 1979
Externally publishedYes


  • Capnocytophaga
  • CO-requiring
  • Gliding bacteria
  • Gram-negative
  • Periodontal disease
  • Ultrastructure

ASJC Scopus subject areas

  • Microbiology
  • Biochemistry
  • Molecular Biology
  • Genetics


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