Fig. 2.

GALA4 but not GALA5 can interfere with callose deposition. Arabidopsis thaliana leaves were inoculated with Pseudomonas syringae strains and stained for callose 24 h after infection. A box plot diagram of papillae number from at least five independent fields of view is shown for each strain. The horizontal black bar is the median and the boxes indicate lower and upper quartiles. This experiment was repeated four times with similar results. *, median number of callose spots per field of view in the tested strain is statistically different from the strain Pst DC3000 ΔCEL (Mann–Whitney test, P < 0.05). WT, wild-type.