Abstract
We have been studying function of a small GTPase OsRac1 and its associated proteins during immune responses in rice. We have identified a number of proteins which directly or indirectly interact with OsRac1. They include two types of immune receptors, chaperones and co-chaperones, signaling proteins, and downstream enzymes for immune responses. A protein complex containing OsRac1 and its associated proteins is called Defensome. We found that proteins involved in PTI and ETI defense pathways are found in Defensome, suggesting that it is a major protein complex involved in rice innate immunity in general. In this talk results on early signaling events in PTI and biochemical analysis of Defensome including its dynamics after signal perception will be presented.
