Glycogen Synthetic Abilities of Actinomyces viscosus and Actinomyces naeslundii Freshly Isolated from Dental Plaque over Root Surface Caries Lesions and Non-carious Sites
Restricted accessResearch articleFirst published online June, 1986
Glycogen Synthetic Abilities of Actinomyces viscosus and Actinomyces naeslundii Freshly Isolated from Dental Plaque over Root Surface Caries Lesions and Non-carious Sites
Relative glycogen synthetic abilities of resting cells of fresh clinical isolates of Actinomyces viscosus and Actinomyces naeslundii originating from dental plaque samples over root surface caries lesions and non-carious sites were studied under anaerobic conditions at a constant pH of 7.0, with U-(14C)-glucose used as the carbon source. Although the rates of glucose utilization and total acid formation were essentially the same, A. viscosus strains isolated from root surface caries lesions showed glycogen synthetic abilities approximately two to seven times higher than did A. viscosus strains originating from non-carious sites, and also two to four times higher than did A. naeslundii strains originating from both carious and non-carious sites.
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