Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1989 Dec;57(12):3945-8.
doi: 10.1128/iai.57.12.3945-3948.1989.

Spontaneous switching of the sucrose-promoted colony phenotype in Streptococcus sanguis

G Tardif  1 , M C Sulavik, G W Jones, D B Clewell
Affiliations

Spontaneous switching of the sucrose-promoted colony phenotype in Streptococcus sanguis

G Tardif et al. Infect Immun. 1989 Dec.

Abstract

Streptococcus sanguis on media containing 3% sucrose gives rise to characteristic hard cohesive colonies (designated Spp+). Populations of Spp+ bacteria (strain Challis) on sucrose media switch to a soft noncohesive phenotype (designated Spp-) at a frequency of 10(-4) to 10(-3). Spp- bacteria switch back to Spp+ bacteria at a similar frequency. Successive rounds of Spp variation were observed. The Spp phenotypic switch was associated with changes in extracellular glucosyltransferase activity.

PubMed Disclaimer

References

    1. Odontol Revy. 1965;16(4):348-58 - PubMed
    1. J Bacteriol. 1946 Jun;51(6):711-6 - PubMed
    1. Arch Oral Biol. 1968 Oct;13(10):1249-62 - PubMed
    1. Arch Oral Biol. 1969 May;14(5):469-78 - PubMed
    1. Anal Biochem. 1969 Jul;30(1):148-52 - PubMed

Publication types

MeSH terms

LinkOut - more resources