FIG. 5.

Relative expression levels of Pal1 in the roots (A) and leaves (B) of cucumber plants. Expression was measured in both roots and leaves of cucumber at 24 to 96 h postelicitation of the root compartment with Trichoderma. At 48 h (arrow), challenge inoculation with P. syringae pv. lachrymans was performed, and mRNA levels postchallenge were recorded 48 h later. All experiments were repeated twice and showed similar results. Bars represent relative mRNA levels from one representative experiment ± SE.