Another glycoprotein elicitor MGJ2 was purified utilizing Sephacryal-100 gel filtration, DEAE sepharose FF ion exchange, SDS-PAGE showed that the MGJ2 had only one band of 102.2 kDa.

• 3 将稻瘟菌粗激发子经S-100凝胶柱层析，在全排阻阶段，收集活性峰，而后经DEAE-Sepharose FF离子交换柱层析获得糖蛋白激发子MGJ2，分别经SDS-PAGE蛋白银染及高碘酸-Schiff糖染色均显示单一条带，表明MGJ2激发子达到电泳纯。