Figure 3

Nucleic acid hybridization using labeled cDNA probes. Nucleic acid hybridization using labeled cDNA probe to 11 Xanthomonas citri subsp. citri strain 306 (Xcc) genes identified as important for pathogenicity through random mutagenesis. Panel A = gene expression of ORFs when Xcc was multiplied in culture medium. Panel B = gene expression of ORFs when Xcc was multiplied in citrus leaves for 3 days. C1–C4 = controls (5 ng, 20 ng, 80 ng and 320 ng, respectively).