Necrotizing and H
-inducing activities of Xyn11A. A) Infiltration in tomato (cv. Moneymaker) leaves. B) Infiltration in tobacco (cv. Havana) leaves. C) Side-by-side comparison of necrotizing activity of Xyn11A and EIX on tomato (cv. Moneymaker). Picture was taken 4 days after infiltration. D) Infiltration of tomato leaves and treatment with DAB to reveal H2O2. A positive control was made by wounding the leaf. X: xylanase Xyn11A; W: water; EIX: xylanase EIX from Trichoderma viride.