Antagonistic effect of oral bacteria towards Treponema denticola.
AUTOR(ES)
Grenier, D
RESUMO
This study was designed to isolate oral bacteria exhibiting antagonism towards Treponema denticola and to characterize the inhibitory activity. Eleven bacterial isolates obtained from subgingival sites and identified as either Staphylococcus aureus or Streptococcus mutans were found to inhibit the growth of T. denticola. When the activity spectra of these isolates were analyzed, two additional periodontopathogens (Porphyromonas gingivalis and Prevotella intermedia) were found to be affected, whereas most gram-positive bacteria were not. Strains of S. aureus produce a bacteriocin-like inhibitory substance (heat stable and protease sensitive), whereas the inhibitory effect of S. mutans appears to be related to the production of lactic acid. The negative interactions reported in this paper may govern population shifts observed in subgingival sites.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=228990Documentos Relacionados
- Effect of fluoride on Treponema denticola.
- Arginine catabolism by Treponema denticola.
- Characterization of fibrinolytic activities of Treponema denticola.
- A major antigen on the outer envelope of a human oral spirochete, Treponema denticola.
- Isolation of a chymotrypsinlike enzyme from Treponema denticola.
