Plant resistance to disease and its associated molecule mechanism has been a hotspot and focus of plant physiology, pathology, biochemistry and molecular biology. Recently with the rapid advancement in these branches, their theories and technology gradually penetrate the study of the molecule mechanism of disease-resistance. Much investigations showed that some small molecules like salicylicacid (SA) and peroxide (H2O2) are involved in the course of destroying foreign pathogens. These small molec...