Peas Pisum sativum response

Wu, Q. and VanEtten, H.D., Introduction of plant and fungal genes into pea (Pisum sativum L.) hairy roots reduces their ability to produce pisatin and affects their response to a fungal pathogen. Mol Plant Microbe Interact., 17, 798, 2004. 

Pisatin (6.23) is an isoflavonoid phytoalexin that is synthesized by pea (Pisum sativum L.) as a response to infection (Preisig et al., 1989). Subsequently, it was shown that pathogens capable of demethylating pisatin were tolerant of this phytoalexin. The enzyme responsible for demethylation is a specific cytochrome P450 mono-oxygenase released by the fungus Nectria haematococca (Delserone et al., 1999). 

---