FIG. 2.

Multiplication of P. syringae pv. lachrymans in challenged leaves assessed at the indicated time points postinoculation. Control plants (T−Psl+) were treated with distilled water 48 h prior to challenge with P. syringae pv. lachrymans (•); plants treated with T. asperellum (T+Psl+) were elicited 48 h prior to challenge with P. syringae pv. lachrymans (▴). Data points are means (CFU/gram) ± standard errors (SE) for two sets of 20 randomly selected leaves, and values are the averages from two independent experiments.