Interspecies Interactions Between Streptococcus Mutans and Streptococcus Agalactiae
Overview
Infectious Diseases
Microbiology
Affiliations
is an oral species closely associated with dental caries. As an early oral colonizer, utilizes interspecies coaggregation to promote the colonization of subsequent species and affect polymicrobial pathogenesis. Previous studies have confirmed several adhering partner species of , including and . In this study, we discovered new intergeneric co-adherence between and the saliva isolate (GBS-SI101). Research shows that GBS typically colonizes the human gastrointestinal and vaginal tracts. It is responsible for adverse pregnancy outcomes and life-threatening infections in neonates and immunocompromised people. Our results revealed that GtfB and GtfC of , which contributed to extracellular polysaccharide synthesis, promoted coaggregation of with GBS-SI101. In addition, oral streptococci, including and , barely inhibited the growth of GBS-SI101. This study indicated that could help GBS integrate into the associated oral polymicrobial community and become a resident species in the oral cavity, increasing the risk of oral infections.
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