Figure 1
From: The role of sigma factor RpoH1 in the pH stress response of Sinorhizobium meliloti
Growth curves of S. meliloti 1021 wild type strain and mutant strains for sigma factor genes at neutral and acidic pH. S. meliloti 1021 (open circles) and mutant strains for sigma factor genes rpoE1 (filled squares), rpoE2 (filled triangles), rpoE5 (open triangles), fecI (filled circles) and rpoH1 (open squares) were grown in VMM medium at 30°C at either pH 7.0 (A) or pH 5.75 (B). Each panel shows the data from three representative experiments. The error bars indicate the standard deviation calculated from three independent cultures.