title: Capnocytophaga: new genus of gram-negative gliding bacteria. II. Morphology and ultrastructure.
abstract: 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 micrograms x 0.38-0.5 microgram and large 4.8-5.8 micrograms x 0.42-0.6 microgram 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.
mesh_terms: D000328:Adult; D002455:Cell Division; D002462:Cell Membrane / Q000648:ultrastructure; D002473:Cell Wall / Q000648:ultrastructure; D002648:Child; D041964:Cytophagaceae / Q000254:growth & development / Q000648:ultrastructure*; D003773:Dental Plaque / Q000382:microbiology*; D006801:Humans; D009940:Organoids / Q000648:ultrastructure