Ningnanmycin has effect on virus disease of crops via inducing plant to bring PR protein systematically, reducing concentration of nucleocapsid in frond and destroying nucleocapsid structure.

• 宁南霉素系统地诱导植物产生PR蛋白,降低植物体内病毒粒体浓度,破坏病毒粒体结构,从而达到防治作物病毒病的效果。