1. Salicylic acid Yes Apoplast ETI, SAR Biotrophs, necrotrophs Al-Daoude et al. 2019; Lim et al. 2016; Mittag and
2. Strader 2020; Wang et al. 2013; Wildermuth et al.
3. Jasmonates Yes Symplast, apoplast ETS Necrotrophs, biotrophs,
4. Current overview on viroid–host interactions
5. Phytoalexins in defense against pathogens