RpoB and RpoS mutants have a growth advantage on aging colonies.

Abstract

<p>Fold increase in wild-type and mutant cells added to 24 h wild-type colonies and allowed to age for a further 7 days. The box plots show the first quartile, median, and third quartile values. Outlier indicated by a triangle. Statistical significance of differences in the distribution of values between strains, compared to the wild-type, is given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0109255#pone.0109255.s002" target="_blank">Table S2</a> and indicated in the figure by asterisks (*  = 95% confidence interval, ***  = 99.9% confidence interval).</p