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本文通过对葡萄白腐病毒素研究，明确了该菌经培养后可产生毒素物质，粗提纯后，该毒素在278nm处有吸收高峰，初步推测该毒素可能是一种蛋白质；将毒素用针刺法接种叶片，可产生和病原菌相似的症状，说明毒素是白腐病致病的一个重要因子；经超微结构观察表明，毒素可使寄主组织的细胞壁变薄或消失，叶绿体膜或线粒体膜破裂，内部组织崩解、细胞内原生质流失或凝集，各种细胞器分辨不清。
In this paper, through the study of grape white rot virus, it is clear that the toxin can be produced after culturing the strain. After crude purification, the toxin has absorption peak at 278 nm. It is preliminarily presumed that the toxin may be a kind of protein; The results showed that the toxin could make the cell wall of the host tissue thin or disappear and the chloroplast membrane or the mitochondrial membrane ruptured , Disintegration of internal tissues, loss or agglutination of intracellular protoplasts, various organelles are indistinguishable.