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Gilpatrick和Weintraub,Weintraub和Kemp报导石竹两个种株上接种石竹花叶病毒,接种叶上有局部坏死斑,洼意到未接种又无病毒的叶上再接种时却能抵抗该病毒侵染。这种获得免疫通过嫁接可以传递耠健康的石竹,显然有保护作用。这种免疫通过无性繁殖在石竹中维持了两年半之久,又不知所以然丧失作用了。 Yarwood在菜豆叶上接种TMV之后的局部坏死斑的周围几毫米以内也发现有抵抗该病毒再侵染的现象。 Ross在心叶烟和Samsun烟的杂交种烟叶上接种TMV,局部坏死斑周围有约2毫米宽的抗病带;这种获得抗性可以从接种叶转移到未接种叶内,发展为系统性抗性;而
Gilpatrick and Weintraub, Weintraub and Kemp reported that two species of Dianthus were inoculated with Dianthus mosaic virus, with localized necrotic spots on the inoculated leaves, which were resistant to the virion infection on unvaccinated and virus-free leaves. This access to immunity through the grafting can pass 耠 healthy Dianthus, apparently protective effect. This kind of immunity has been dormant for two and a half years in Dianthus through asexual reproduction, and it is not known that it is ineffective. Within a few millimeters around the local necrotic spot after TMV was inoculated on bean leaves, Yarwood also found that it was resistant to reinfection of the virus. Ross inoculated TMV on hybrid leaf tobacco of both heart and Samsun tobaccos with an approximately 2 mm wide disease zone around the local necrotic spots; this acquired resistance can be transferred from the inoculated leaves to the non-inoculated leaves to develop systemic resistance Sex;