The expression of all four tested SAR-related marker genes, i.e., PR1, PR2, PR5, and SID2, was upregulated in shoots at 48 h after root treatment with SCA7 and 24 h after leaf infection with the pathogenic Pst DC3000 (Supplementary Figure S1), compared to control plants treated with PBS and, later, infected with Pst DC3000 (Figure 9B). Here, TMEM37 is linked to infection.