某些二价阳离子对唾液链球菌胞外多糖合成的影响。
The effect of some divalent cations on extracellular polysaccharide synthesis in Streptococcus salivarius.
作者信息
Boyd R F
出版信息
J Dent Res. 1978 Feb;57(2):380-3. doi: 10.1177/00220345780570024001.
PMID:277538
Abstract
The amount of extracellular insoluble polysaccharide produced by Streptococcus salivarius can be effected by some divalent cations. Calcium at concentrations of 1 X 10(-3) and 10(-4) M caused a reduction in polysaccharide synthesis. Magnesium at 1 X 10(-3) M inhibited extracellular polysaccharide production but at 1 X 10(-4) M had little effect. Manganese was without effect on polysaccharide synthesis. Zinc at 1 X 10(-3) and 1 X 10(-4) M caused a substantial increase in extracellular polysaccharide synthesis.
摘要
唾液链球菌产生的细胞外不溶性多糖的量会受到一些二价阳离子的影响。浓度为1×10⁻³和1×10⁻⁴ M的钙会导致多糖合成减少。浓度为1×10⁻³ M的镁会抑制细胞外多糖的产生，但在1×10⁻⁴ M时影响很小。锰对多糖合成没有影响。浓度为1×10⁻³和1×10⁻⁴ M的锌会使细胞外多糖合成大幅增加。
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