Figure 1

Overview of expression profiling analysis. (A) Venn diagram showing the number of genes differentially regulated under nitrogen fixation (red arrow) and ammonium shock conditions (blue arrow). The bold circle indicates the core subset of nitrogen fixation-inducible genes. The dotted circle indicates the Pseudomonas core genome. The numbers of upregulated and downregulated genes found in the Pseudomonas core genome are shown in parentheses. The number of genes induced specifically under nitrogen fixation conditions is underlined. (B) Functional categories of the core subset of nitrogen fixation, condition-induced genes.