Figure 2.

Expression modes of AtCMPG1 promoter/GUS constructs in transgenic A. thaliana plants. Promoter fragments of different lengths up to the indicated positions (below panels) were tested for endogenous GUS expression (A; 6-week-old plant) and for responsiveness either to wounding [B–D; 5-week-old plant 4 h after wounding by cutting (Left) or squeezing with forceps (Right)] or to fungal infections by P. parasitica pv. Cala 2 (E and F, 10-day-old primary leaves) or A. brassicicola (G–I; 5-week-old leaves). Infected leaves were harvested 1 or 4 days postinoculation, respectively. Arrows mark the positions of fungal mycelium. Mock-inoculated leaves are shown on the Left in E and F. The fragments tested were the same as constructs A–C in Fig. 3 (see below).