In A. thaliana and S. alba, early and high-level induction of defense-related genes, namely, pathogenesis-related-1 (PR1), β-1,3 glucanase (PR2), and chitinase (PR3), occurs compared to B. juncea after infection with A. brassicae or A. brassicicola (Narusaka et al., 2003; Van Wees et al., 2003; Ghose et al., 2008; Nayanakantha et al., 2016; Mandal, Rajarammohan & Kaur, 2018). The gene discussed is PRTN3; the disease is infection.