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. 2012 Sep 26;7(9):e46350. doi: 10.1371/journal.pone.0046350

Figure 3. The E. coli ΔnrdR mutant enhances biofilm formation through the class Ib and III RNR classes.

Figure 3

Biofilms of the wild-type E. coli strains MG1655 in panel A and E2348/69 in panel B are compared to their isogenic ΔnrdR mutant. The values shown are the means of at least 7–8 independent experiments with six wells in each and the error bars represent standard deviations. Differences with respect to the wild-type strain were statistically significant for all the pairs of strains (*, P<0.05 by the Mann-Whitney test). Plots and statistics were generated using GraphPad Prism 5.0 software.