Fig. 5
SA signaling are involved in enterobacterium-induced callose production. Callose deposits area was measured in leaves of four- to five-week-old plants after syringe-infiltration with water as a mock control or 1 × 108 CFU.mL− 1 of Pst DC3118, STm 14,028 s, or E. coli O157:H7. Results are shown as mean (n = 18 to 37 ± SE). Statistical difference between the means (Col-0 versus mutant plant) was detected using two-tailed Student’s t-test (** = p < 0.01; *** = p < 0.001; ns = non-significant)