Figure 4
From: Altered lipid composition in Streptococcus pneumoniae cpoA mutants
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2180-14-12/MediaObjects/12866_2013_Article_2181_Fig4_HTML.jpg)
Growth of cpoA mutants in low pH medium. Strains were grown in C-medium, and culture density was monitored by nephelometry [NU]. The growth was examined at pH 8 (circles) and pH 6 (squares). A: R6; B: P104; C: P106; D: R6ΔcpoA.