Figure 1.

Resistance to B. cinerea and toluidine blue staining of wild type and cell wall acetylation mutants (rwa2-3, tbl29, and axy4-3). (A) B. cinerea infection defined by lesion area measured. Relative mean values to the wild type are shown and the error bars represent standard deviations (N > 8). An asterisk indicates statistically significant difference from the wild type by Student's t-test (P < 0.05). (B) Toluidine blue staining pattern of 3-week old plants. The same results were obtained in three independent analyses. The arrowhead indicates the staining of a trichome.