FER-mediated resistance mechanisms cannot be generalized, as fer mutants are susceptible to infections by Hyaloperonospora arabidopsidis, a biotrophic oomycete that provokes downy mildew (Coates and Beynon, 2010) and Colletotrichum higginsianum, a hemibiotrophic fungus causative of anthracnose disease (Kessler et al., 2010; Yan et al., 2018). Here, FER is linked to infection.