Capsule genes of Streptococcus pneumoniae influence growth in vitro.

Abstract excerpt

Recently, we showed that the in vitro lag phase correlates with the pneumococcal serotype. This study investigated the role of capsule genes in bacterial growth using strain D39. Deletion of the entire capsule operon induced a significantly prolonged lag phase in Todd Hewitt broth (P=0.0002). However, partial deletions showed a different influence on the lag phase. Supplementation of media with 5% fetal bovine...

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