TMEM37 and infection: Prior to PsmDG3 infection, the relative transcript levels of the defense-associated gene PR1 were already higher in loh1-2 compared with Col-0, loh2-2, and loh3-2, while PR1 transcript levels rose to equally high levels in all genotypes following PsmDG3 infection (Supplementary Figure 3B), indicating that the resistance seen in loh1-2 in response to PsmDG3 is associated with the pre-activation of defense-associated gene expression.