The oxygen tolelance of some strict anaerobes from periodontopathic disease.
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概要
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We have studied the correlation of the oxygen tolelance of strictly anaerobic bacteria which were thought to be the periodontopathic bacteria with survival and growth of the bacteria under the aerobic condition in oral cavities. Oxygen tolelance was expressed by decimal reduction time of the initial cell counts to decline to 1/10 by aeration.<BR>The D-time was from 2 hrs to 10 hrs when the initial viable counts were 10<SUP>2</SUP>-10<SUP>5</SUP> cells/plate in case of <I>Bacteroides gingivalis, Bacteroides intermedius, Bacteroides loescheii, Bacteroides melaninogenicus</I> and <I>Fusobacterium nucleatum</I> while D-time of <I>Bacteroids fragilis</I> which was used as the control showed the value of 18-48 hrs. Therefore, all of strains used for the experiment were weak oxygen tolelant organisms.
- The Japanese Association for Infectious Diseasesの論文
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