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1978年,烟草病毒病在安徽烟区流行,导致凤阳县烟叶总产损失92.3％,引起了普遍震惊。1981—1984年作者对来自16个县、市552个病毒材料,经生物测定、血清反应、电镜观察,初步分离出CMV、TMV、PVY和PVX四种病毒。它们分别约占检测总数的82.79％、4.53％、2.54％和0.36％,其中CMV与长期视为优势种的TMV比值为18.3,除此,尚有约占检测总数9.8％的CMV和TMV、CMV和PVY复合侵染,以及不明类型的毒株。通过对田间烟草以及其他植物花叶病株的实际检测,进一步表明:CMV在烟区分布范围极广、出现频次最多,已形成了复杂的循环侵染系统,成为近期内烟草病毒病持续流行危害的首要毒原。
In 1978, the tobacco virus disease prevailed in the tobacco area of Anhui Province, causing a total loss of 92.3% of the total output of tobacco leaves in Fengyang County, causing widespread shock. In 1981-1984, 552 virus materials from 16 counties and cities were obtained. The viruses of CMV, TMV, PVY and PVX were initially isolated by bioassay, serum reaction and electron microscope observation. They accounted for about 82.79%, 4.53%, 2.54% and 0.36% of the total number of tests, respectively. Among them, the ratio of CMV to long-term dominant species was 18.3. Besides, CMV and TMV still accounted for about 9.8% And PVY complex infection, as well as unknown types of strains. Through the actual detection of tobacco and other plant mosaic strains in the field, CMV further showed that the distribution of CMV in the tobacco area is very wide and has the highest frequency of occurrence, forming a complicated circulating infection system and becoming a continuous epidemic hazard of tobacco virus in the near future The primary poison.