The nature of the oral cavity and host behaviors has mandated that the oral microbiota
evolve mechanisms for coping with environmental fluctuations, especially changes in the …

In the oral biofilm, the 'mitis' streptococci are among the first group of organisms to colonize
the tooth surface. Their proliferation is thought to be an important factor required for …

Streptococcus mutans, a member of the human oral flora, is a widely recognized etiological
agent of dental caries. The cariogenic potential of S. mutans is related to its ability to …

The oral microbial flora contains over 500 different microbial species that often interact as a
means to compete for limited space and nutritional resources. Streptococcus mutans, a …

The ability of certain oral biofilm bacteria to moderate pH through arginine metabolism by
the arginine deiminase system (ADS) is a deterrent to the development of dental caries …

Background Two closely related species of mutans streptococci, namely Streptococcus
mutans and Streptococcus sobrinus, are associated with dental caries in humans. Their …

ABSTRACT Group A Streptococcus (GAS) commonly infects the human oropharynx, but the
initial molecular events governing this process are poorly understood. Saliva is a major …

Streptococcus pneumoniae is a member of the Mitis group of streptococci which, according
to 16S rRNA-sequence based phylogenetic reconstruction, includes 12 species. While other …

It is now clear that the most common oral diseases, dental caries and periodontitis, are
caused by mixed-species communities rather than by individual pathogens working in …

Bacterial stress can be defined as any change in conditions resulting in a deviation from the
ideal growth rate of a bacterium. Hence, there is a continuum of stresses ranging in severity …