作者在本文报道的是:从选自克山农科所1978年夏播田克新二号品种马铃薯纺锤块茎(经茎尖培养汰除其它病毒而未脱掉 PSTV)1979年在北京西郊栽培的植物叶组织,提取2M LiCl 可溶性核糖核酸,经5%聚丙烯酰胺凝胶电泳分离出 PSTV—RNA。马铃薯纺锤块茎病害在我国最早发现于黑龙江省,一般减产率达20～70%。 The author reported in this paper is: from the election from Keshan Agricultural Institute in the summer of 1978 Tian Xin Keji No.2 varieties of potato spindle spindle (stem tip culture to eliminate other viruses without removing the PSTV) in 1979 in the western suburbs of Beijing cultivated Plant leaf tissue was extracted 2M LiCl soluble ribonucleic acid, PSTV-RNA was isolated by 5% polyacrylamide gel electrophoresis. Potato spindle tuber disease was first found in Heilongjiang Province in China, the general yield reduction rate of 20 to 70%.