Figure 4From: PR genes of apple: identification and expression in response to elicitors and inoculation with Erwinia amylovoraExpression of apple PR genes in response to inoculation with plant pathogenic bacteria. Northern hybridization of RNA preparations from young apple shoots just prior to (Pre-treatment), and following inoculation with E. amylovora Ea273 (E), P. syringae DC3000 (P), or mock inoculation with 5 mM potassium phosphate buffer pH 6.5 (B).Back to article page