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Identification by Biotinylated DNA Probes of Capnocytophaga Species Isolated from Supragingival Calculus

Department of Preventive Dentistry, Okayama University Dental School, Shikata-cho, Okayama 700, Japan

T. Yamamoto

Department of Preventive Dentistry, Okayama University Dental School, Shikata-cho, Okayama 700, Japan

T. Watanabe

Department of Preventive Dentistry, Okayama University Dental School, Shikata-cho, Okayama 700, Japan

The distribution, genetic relatedness, and peptidase activity in hydrolyzing N-benzoyl-L-arginine- p-nitroanilide by Capnocytophaga species isolated from calculus- and non-calculus-formers were determined in this study. The proportion and prevalence of Capnocytophaga species were higher in plaque samples from the calculus group than in those from the non-calculus group, and these bacteria showed high peptidase activity. C. gingivalis were found more frequently in the calculus group than in the non-calculus group, and possessed much higher peptidase activity than C. ochracea and C. sputigena. Black-pigmented colonies were also recovered more frequently from the calculus group than from the non-calculus group. Since these organisms had little or no peptidase activity, they were not studied further.

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Journal of Dental Research, Vol. 70, No. 7, 1048-1051 (1991)
DOI: 10.1177/00220345910700070601


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Morita, M. Articles by Watanabe, T. Search for Related Content PubMed PubMed Citation Articles by Morita, M. Articles by Watanabe, T. Social Bookmarking                         What's this?