Genetic studies on reference strains of mutans streptococci |
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| Authors: | Fusao Ota Masayuki Yamato Mie Hayashi Masayuki Ota Tetsuro Koga Ahmed Sherin Chiharu Mukai Kentaro Sakai Shigeru Yamamoto |
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| Institution: | aDepartment of Food Microbiology, School of Medicine, The University of Tokushima, 18-15, 3-chome, Kuramoto-cho, Tokushima 770-8503;bDepartment of Applied Nutrition, School of Medicine, The University of Tokushima, 18-15, 3-chome, Kuramoto-cho, Tokushima 770-8503;dNakashimada, Tokushima 770-0052, Japan |
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| Abstract: | Twenty four reference strains (serotype a-h) belonging to the mutans group of streptococci were compared for DNA fragment patterns of rDNA after treatment with Hind III. It was shown that Streptococcus cricetus (serotype a), S. rattus (serotype b), and S. downei (serotype h) reveals comparatively homogeneous patterns while S. mutans (serotype c, e and f) exhibits differences between the different serotypes as well as within single serotypes. S. sobrinus had an intermediary diversity. These data support the previous findings that S. mutans is heterogeneous at the serological, biochemical and genetical level. |
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| Keywords: | mutans group of streptococci restriction fragment length polymorphisms RFLP ribotyping |
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