Puccinia coronata f. sp. avenae

Three compounds, avenalumin I, II, and HI (19-21), are formed in resistant lines of oats (Avena sativa, Poaceae) in response to attack by crown rust, Puccinia coronata f. sp. avenae (Fig. 7.7) (Mayama, 1983). The structures of these compounds suggest that they are derived from anthranilic acid. 

---