Figure 3

AmrZ regulates a large number of genes, many of them implicated in environmental adaption. A. Pie chart representation of genes potentially regulated by AmrZ, distributed by functional classes. Genes in this chart are described in Additional file 1. Functional classes were assigned by ontogeny analysis. B. Expression analysis of selected genes in P. fluorescens F113 and an amrZ mutant background. Relative expression (X-fold) in the amrZ mutant (gray bars) against F113 (black bars) is shown. Numbers correspond to PSF113 annotation. Expression was determined by qPCR. RNA was extracted from cells growing in LB medium at 0.8 O.D.₆₀₀. Asterisks denote statistically significant differences, p < 0.05.