title: Fluoride accumulation by oral microorganisms.
abstract: Ten laboratory strains of oral microorganisms and 17 recent clinical isolates were examined for their ability to concentrate fluoride from a 1 ppm (0.05 mM NaF( fluoride solution. The laboratory strains concentrated the ion from two- to six-fold over the surrounding media. Clinical isolates of Actinomyces concentrated the ion to similar levels to the laboratory strains of this organism; however, clinical isolates of Streptococcus mutans and S. sanguis concentrated the fluoride significantly less than any of the laboratory strains examined.
mesh_terms: D000190:Actinomyces / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism*; D005459:Fluorides / Q000378:metabolism*; D006801:Humans; D008297:Male; D009055:Mouth / Q000382:microbiology*; D013295:Streptococcus mutans / Q000378:metabolism; D013298:Streptococcus sanguis / Q000378:metabolism
chemical_list: D005459:Fluorides