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Journal of Dental Research
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The Effect of Some Divalent Cations on Extracellular Polysaccharide Synthesis in Streptococcus salivarius

Robert F. Boyd

Department of Microbiology, Marquette University School of Dentistry, Milwaukee, Wisconsin 53233, USA

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.

Journal of Dental Research, Vol. 57, No. 2, 380-383 (1978)
DOI: 10.1177/00220345780570024001
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Effects of Fluoride, Lithium and Strontium on Extracellular Polysaccharide Production by Streptococcus mutans and Actinomyces viscosus
Journal of Dental Research, March 1, 1981; 60(3_suppl): 1601 - 1610.
[Abstract] [PDF]