Fig. 3From: Comparative genomic and phenomic analysis of Clostridium difficile and Clostridium sordellii, two related pathogens with differing host tissue preferenceGrowth dependence on pH. Phenotype Microarray growth data for the pH range 4–10 was obtained from PM10-A (Additional file 1: Table S1). For each species, the data was normalized to pH 6, which is the optimal growth pH of C. difficile Back to article page