Inactivation of the ciaH gene in Streptococcus mutans diminishes mutacin production and competence development, alters sucrose-dependent biofilm formation, and reduces stress tolerance

Fengxia Qi, Justin Merritt, Renate Lux, Wenyuan Shi

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Many clinical isolates of Streptococcus mutans produce peptide antibiotics called mutacins. Mutacin production may play an important role in the ecology of S. mutans in dental plaque. In this study, inactivation of a histidine kinase gene, ciaH, abolished mutacin production. Surprisingly, the same mutation also diminished competence development, stress tolerance, and sucrose-dependent biofilm formation.

Original languageEnglish (US)
Pages (from-to)4895-4899
Number of pages5
JournalInfection and Immunity
Volume72
Issue number8
DOIs
StatePublished - Aug 2004
Externally publishedYes

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Streptococcus mutans
Gene Silencing
Biofilms
Mental Competency
Sucrose
Dental Plaque
Ecology
Anti-Bacterial Agents
Peptides
Mutation
Genes
Histidine Kinase

ASJC Scopus subject areas

  • Immunology

Cite this

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abstract = "Many clinical isolates of Streptococcus mutans produce peptide antibiotics called mutacins. Mutacin production may play an important role in the ecology of S. mutans in dental plaque. In this study, inactivation of a histidine kinase gene, ciaH, abolished mutacin production. Surprisingly, the same mutation also diminished competence development, stress tolerance, and sucrose-dependent biofilm formation.",
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