S-Space College of Dentistry/School of Dentistry (치과대학/치의학대학원) Dept. of Dentistry (치의학과) Journal Papers (저널논문_치의학과)
First isolation of Streptococcus downei from human dental plaques
- Min, Byung-Moo; Yoo, So Young; Kim, Kwan-Joong; Lim, Seong-Hoon; Kim, Kwang-Won; Hwang, Ho-Keel; Choe, Son-Jin; Kook, Joong-Ki
- Issue Date
- FEMS Microbiology Letters 249, 323-326
- In this study, we isolated four bacterial strains grown on mitis-salivarius sucrose bacitracin agar. The strains had similar biochemical characteristics to biotypes I or II of mutans streptococci. The four isolates were identified as Streptococcus downei by 16S rDNA and dextranase gene (dex) sequencing as well as polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) targeting dex. To our knowledge, this is the first report of the isolation and identification of S. downei from dental plaque in humans. The results suggest that S. downei can inhabit the human oral cavity.
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