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Accumulation of streptococci on teeth in a laboratory microcosm (artificial mouth)

Donoghue, HD; Perrons, CJ; (1988) Accumulation of streptococci on teeth in a laboratory microcosm (artificial mouth). Microbial Ecology in Health and Disease , 1 (2) 123 - 130. Green open access

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Abstract

The accumulation on teeth of three strains of oral bacteria, ‘Streptococcus mitior’ LPA-1, Streptococcus mutans C67-1, and Streptococcus rattus BHT, was studied from 8 to 90 hours after inoculation. Direct and viable counts demonstrated that strains BHT and C67-1 accumulated more rapidly than strain LPA-1, with fastest growth during the first 16 hours (td8-16h 3.6-4.8 h). In older cultures, S. mutans and S. rattus continued to accumulate and a high proportion of the cells were viable. In contrast, ‘S. mitior’ cultures contained many non-viable organisms, possibly due to hydrogen peroxideinduced death. When S. rattus was co-cultured with ‘S. mitior’ it was strongly inhibited during the first 24 hours, but increased in proportion after 66 and 90 hours. It was concluded that in the interaction between ‘S. mitior’ and S. rattus during initial plaque development, a potentially rapid initial growth rate was of less importance than the ability to antagonise the other organism.

Type: Article
Title: Accumulation of streptococci on teeth in a laboratory microcosm (artificial mouth)
Location: UK
Open access status: An open access version is available from UCL Discovery
Publisher version: http://www.microbecolhealthdis.net/index.php/mehd/...
Language: English
Additional information: Authors contributing to Microbial Ecology in Health & Disease agree to publish their articles under the Creative Commons Attribution-Noncommercial 3.0 Unported license, allowing third parties to share their work (copy, distribute, transmit) and to adapt it, under the condition that the authors are given credit, that the work is not used for commercial purposes, and that in the event of reuse or distribution, the terms of this license are made clear.
Keywords: Model mouth, Oral streptococci, Microbial ecology
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Infection and Immunity
URI: https://discovery.ucl.ac.uk/id/eprint/1309102
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