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Article

Changes in availability of oxygen accentuate differences in capsular polysaccharide expression by phenotypic variants and clinical isolates of Streptococcus pneumoniae.

Infection and immunity - 1 Sept 2001

Weiser J N, Bae D, Epino H, Gordon S B, Kapoor M, Zenewicz L A, Shchepetov M

Abstract excerpt

Most isolates of Streptococcus pneumoniae are mixed populations of transparent (T) and opaque (O) colony phenotypes. Differences in the production of capsular polysaccharide (CPS) between O and T variants were accentuated by changes in the environmental concentration of oxygen. O variants demonstrated a 5.2- to 10.6-fold increase in amounts of CPS under anaerobic compared to atmospheric growth conditions, while...

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Identifiers

PMID: 11500414
DOI: 10.1128/IAI.69.9.5430-5439.2001
PMCID: PMC98654

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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