Capnocytophaga: New genus of gram-negative gliding bacteria I. General characteristics,taxonomic considerations and significance |
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Authors: | E R Leadbetter S C Holt S S Socransky |
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Institution: | (1) Department of Biology, Amherst College, 01002 Amherst, MA;(2) Department of Microbiology, University of Massachusetts, 01003 Amberst, MA;(3) Forsyth Dental Center, 140 The Fenway, 02115 Boston, MA;(4) Present address: Biological Sciences Group, University of Connecticut, 06268 Storrs, CT, USA |
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Abstract: | The characteristics of gliding bacteria isolated from both healthy and diseased sites in the oral cavity are, summarized and the taxonomic position of the bacteria discussed. Uniform attributes of the fusiform isolates include gliding motility, strictly fermentative metabolism dependent on the presence of CO2 (or HCO
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), under either anaerobic or aerobic conditions, presence of benzidine-reactive components, and the production of acetic and succinic acids as the major or sole, acidic, metabolic and products. Given the guanine and cytosine content of DNA, their gliding motility, and the ability of many strains to attack polysaccharide a relationship to the cytophagas is suggested. This relationship, along with the CO2-dependent growth is recognized by the generic name Capnocytophaga given them. Many of the isolates are grouped into three species C. ochracea, C. Sputigena, and C. gingivalis, separated on the basis of morphological and physiological traits. |
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Keywords: | Capnocytophaga Gliding bacteria CO2-requiring Gram-negative Periodontal diseases Taxonomy |
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