FIG 1 .

Microarray experimental design and flowchart. We compared transcriptional profiles of phylogenetically and ecologically distinct R. solanacearum strains GMI1000 (orange) and UW551 (green) during growth in tomato stems and in rich medium (CPG) at comparable cell densities. Bacteria grown in culture were treated with a transcriptional stop solution and pelleted. Bacteria were harvested from infected tomato xylem by centrifugation from cut stems into a transcriptional stop solution. Bacterial RNA was isolated from four biological replicates per strain per condition (16 replicates total).