Tomato leaves were inoculated with B. cinerea after continuous treatment of tomato plants with EAWP for 7 days at 66 ng H2O2 cm3 h1. (A) Lesion diameter at 3 days post-inoculation (dpi); (B) gray mold on tomato leaves at 3 dpi; (C) light microscopy of tomato leaves at 3 dpi. Error bars represent the standard errors (n ¼ 42) from three independent experiments with five plants for each treatment. At least two compound leaves from the third true leaf of each of the tomato plants were examined. Data sets marked with asterisks are significantly different from inoculated plants with no
EAWP treatment (B. c.), as assessed by a Student's t test; ** indicates P < 0.01.
Fig.