The effect of some divalent cations on extracellular polysaccharide synthesis in Streptococcus salivarius.
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.
D002118:Calcium / Q000494:pharmacology; D002413:Cations, Divalent / Q000494:pharmacology*; D008274:Magnesium / Q000494:pharmacology; D008345:Manganese / Q000494:pharmacology; D011135:Polysaccharides, Bacterial / Q000037:antagonists & inhibitors / Q000096:biosynthesis*; D013291:Streptococcus / Q000187:drug effects* / Q000378:metabolism; D015032:Zinc / Q000494:pharmacology
D002413:Cations, Divalent; D011135:Polysaccharides, Bacterial; D008345:Manganese; D008274:Magnesium; D015032:Zinc; D002118:Calcium