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Research Article

Activity of two Streptococcus mutans bacteriocins in the presence of saliva, levan, and dextran.

A L Delisle
A L Delisle
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ABSTRACT

The extracellular dextrans produced from sucrose by Streptococcus mutans strains BHT and GS-5 did not prevent the synthesis or release of active bacteriocins by these two strains. In addition, several streptococci that were genetically sensitive to these bacteriocins, and that could synthesize a variety of extracellular dextrans and levans from sucrose, remained phenotypically sensitive when grown in the presence of sucrose. Bacteriocin activity was not altered by treatment with high-molecular-weight dextran or by human saliva. The bacteriocins produced by, and active against, S. mutans thus appear to be capable of acting in vivo and may play a role in regulating the bacterial ecology of the oral cavity.

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Activity of two Streptococcus mutans bacteriocins in the presence of saliva, levan, and dextran.
A L Delisle
Infection and Immunity Feb 1976, 13 (2) 619-626; DOI:

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Activity of two Streptococcus mutans bacteriocins in the presence of saliva, levan, and dextran.
A L Delisle
Infection and Immunity Feb 1976, 13 (2) 619-626; DOI:
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