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1987年自东北农学院马铃薯区域试验材料(东农85-3334)上分离到烟草坏死病毒(Tobacco Necro—sis Virus简称TNV)。该病毒的寄主范围很广,在测试的茄科、豆科、藜科、葫芦科,十字花科、禾本科、苋科、菊科、伞形科、锦葵科、百合科、脂麻科和亚麻科等13科53种植物中,能侵染茄科、豆科、藜科、葫芦科、禾本科、苋科,脂麻科的亚麻科等8科34种植物,侵染率达64%。但人工接种仅能在接种叶上引起局部侵染,没有发现其系统侵染寄主。
In 1987, Tobacco Necro-sis Virus (TNV) was isolated from potato regional test material of Northeast Agricultural College (Dongnong 85-3334). The host of the virus is very broad, in the test Solanaceae, Leguminosae, Chenopodiaceae, Cucurbitaceae, Cruciferae, Gramineae, Amaranthus, Asteraceae, Umbelliferae, Malvaceae, Liliaceae, And flax families of 13 families and 53 species of plants, which can infect Solanaceae, Leguminosae, Chenopodiaceae, Cucurbitaceae, Gramineae, Amaranthus, Zhigancao Flaxaceae and other 34 families of 34 species, the infection rate of 64 %. However, artificial inoculation caused local infection only on the inoculated leaves and no systemic invasion of the host was found.