Figure 6.

Resistance of cev1 to Powdery Mildews.

Four-week-old Col-gl1 and cev1 plants were inoculated with E. cichoracearum UCSC1, E. orontii MGH, or O. lycopersicum Oxford. After 7 days (for E. cichoracearum) or 5 days (for E. orontii and O. lycopersicum), leaves were fixed and cleared in a lactophenol solution and stained with trypan blue, and the number of conidiophores per colony was recorded. Numbers are the means from 50 colonies for Col-gl1 (white bars) and cev1 (gray bars). An unpaired t test analysis indicated that for each fungus, differences between the means for the Col-gl1 and cev1 plants were statistically significant (P < 0.001).