Characterization of a Signaling System in Streptococcus mitis That Mediates Interspecies Communication with Streptococcus pneumoniae
نویسندگان
چکیده
منابع مشابه
Parallel Evolution of Streptococcus pneumoniae and Streptococcus mitis to Pathogenic and Mutualistic Lifestyles
The bacterium Streptococcus pneumoniae is one of the leading causes of fatal infections affecting humans. Intriguingly, phylogenetic analysis shows that the species constitutes one evolutionary lineage in a cluster of the otherwise commensal Streptococcus mitis strains, with which humans live in harmony. In a comparative analysis of 35 genomes, including phylogenetic analyses of all predicted g...
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H(2)O(2) formation by Streptococcus mitis was measured by the catalase-dependent conversion of [(14)C]formate to (14)CO(2) ; it was optimal at pH 6.0-6.5 and required glucose. The H(2)O(2) formed by S. mitis could be employed as a component of an antimicrobial system that also included lactoperoxidase (LPO) and either iodide or thiocyanate ions in the concentrations present in saliva. The antim...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2019
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.02297-18