A SIMPLE BIOCHEMICAL SCHEME FOR THE DIFFERENTIATION OF STREPTOCOCCUS-MUTANS AND STREPTOCOCCUS-SOBRINUS
A SIMPLE BIOCHEMICAL SCHEME FOR THE DIFFERENTIATION OF STREPTOCOCCUS-MUTANS AND STREPTOCOCCUS-SOBRINUS
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DOI：
10.1159/000261363
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发表时间：
1991-05-01
期刊：
影响因子：
4.2
通讯作者：
WHILEY, RA
中科院分区：
文献类型：
--
作者：
BEIGHTON, D;RUSSELL, RRB;WHILEY, RA
收集的野生型和参考菌株的变形链球菌和远缘链球菌进行了比较，使用一组发酵和酶学试验，以建立一个简单的计划，这两个物种的选择性培养基分离的分化。 从N-乙酰葡糖胺、熊果苷和蜜二糖生产酸的试验以及α-半乳糖苷酶和α-葡糖苷酶活性的存在对区分这些物种是有用的。 不能发酵蜜二糖的变形链球菌菌株也经常不能发酵其他糖;考虑到参与蜜二糖代谢的基因的遗传控制和组织，某些常规表征测试不是独立生化能力的测量。
A collection of wild-type and reference strains of Streptococcus mutans and Streptococcus sobrinus was compared using a set of fermentation and enzymic tests in order to establish a simple scheme for the differentiation of these two species isolated from selective media. Tests for the production of acid from N-acetylglucosamine, arbutin and melibiose, and the presence of alpha-galactosidase and alpha-glucosidase activities were useful in differentiating these species. Strains of Streptococcus mutans unable to ferment melibiose were also frequently unable to ferment other sugars; a consideration of the genetic control and organization of the genes involved in melibiose metabolism indicates that certain of the conventional characterization tests are not measurements of independent biochemical capabilities.