人类牙菌斑中可转化变形链球菌的患病率。
Prevalence of transformable Streptococcus mutans in human dental plaque.
作者信息
Westergren G, Emilson C G
出版信息
Infect Immun. 1983 Sep;41(3):1386-8. doi: 10.1128/iai.41.3.1386-1388.1983.
Abstract
A total of 100 strains of Streptococcus mutans serotypes c/e/f and d/g, freshly isolated from dental plaque, were screened for their ability to undergo genetic transformation to streptomycin resistance. Of the serotype c/e/f strains, 28% were found to be transformable, whereas none of the serotype d/g strains could be transformed by donor DNA from streptomycin-resistant S. mutans strains of either serotype c or d/g. Two of the transformable serotype c/e/f strains were transformed by DNAs from a variety of oral streptococcal species commonly found in the microflora.
摘要
从牙菌斑中新鲜分离出的总共100株变形链球菌血清型c/e/f和d/g菌株，被筛选其进行遗传转化获得链霉素抗性的能力。在血清型c/e/f菌株中，发现28%可转化，而血清型d/g菌株中没有一株能被来自血清型c或d/g的链霉素抗性变形链球菌菌株的供体DNA转化。两株可转化的血清型c/e/f菌株被来自微生物群落中常见的多种口腔链球菌物种的DNA转化。
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