Ultrastructural Changes in Streptococcussobrinus Induced by Xylitol, NaF and ZnCl2
| Autor: | Gunnar Rölla, Ole Fejerskov, A. Aa. Scheie, S. Assev |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
biology
Zinc ion Streptococcus biology.organism_classification Xylitol Cell morphology Streptococcus sobrinus Microbiology Microscopy Electron Zinc chemistry.chemical_compound Chlorides Biochemistry chemistry Zinc Compounds Transmission electron microscopy Ultrastructure Sodium Fluoride General Dentistry Fluoride Bacteria |
| Zdroj: | Caries Research. 23:320-327 |
| ISSN: | 1421-976X 0008-6568 |
| DOI: | 10.1159/000261200 |
| Popis: | The effect of xylitol, NaF, or ZnCl2 on the ultrastructure of Streptococcus sobrinus OMZ 176 was studied. The bacteria were grown statically in air for 8 h in brain-heart infusion broth supplemented with 33 mM Xylitol, 2.5 mM NaF, 0.5 mM ZnCl2, separately or in combination. The bacteria were washed briefly and prepared for scanning and transmission electron microscopy. All three agents and their combinations induced distinct ultrastructural alterations. The alterations were related to various aspects of cell morphology and varied in nature and extent among the agents. The most pronounced ultrastructural alterations were seen in bacteria grown in the presence of zinc ions. At the concentrations used, fluoride appeared to induce the least effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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