Pst DC3000 infection assay of ecotype Columbia (Col-0) and atglr3.3 with putative ligands and Asp. The experiment procedure and analysis methods are same as those in Figure 5. Pst DC3000 proliferation in these leaves was monitored at 0 (A) and 2 DPI (B) preinfiltrated with either CK solution or the solution containing 100 µm  GSSG, Glu, Asp, Ala, Cys, and Asn. C, The same assay was conducted separately for Ser and Gly. At 2 DPI in B and C, except for Asp, the values of atglr3.3-1 and atglr3.3-2 were significantly higher than that of Col-0 at P < 0.01. The asterisk in B indicated there was sd between the treatment and the CK for the corresponding genotype at P < 0.01.