论文部分内容阅读
成株抗性品种(简称成抗品种)苗期感病阶段和感病品种接种后,病菌在叶片内扩展和繁殖速度快,叶片内部组织变态,导管内菌量多、菌体形态正常;成抗品种成株抗病阶段和全生育期抗病品种(简称全抗品种)与此相反,病菌在接种叶片内扩展和繁殖速度慢,叶片内部组织结构正常,导管内菌量较少.并出现了不同形态的物质,将病菌包围,菌体形状不规则,这些物质在健康叶片、成抗苗期接种叶片和感病品种病叶的导管中未观察到,其形成似乎与品种抗性表现有关系.
Inoculation of susceptible varieties of adult plants (resistant varieties) at seedling stage and susceptible varieties inoculated, the bacteria in the leaves of the expansion and propagation speed, leaf tissue abnormalities, the amount of intraductal bacteria, normal morphology; On the contrary, the pathogenic bacteria in the resistance stage of the adult plants and the whole growth period were all the same, the pathogenic bacteria expanded and multiplied slowly in the inoculated leaves, the internal tissue structure was normal, and the amount of bacteria in the duct was less. Different forms of material, the bacteria surrounded, bacteria irregular shape, these substances in the healthy leaves, seedlings into seedlings and the susceptible varieties of diseased leaves of the catheter was not observed, the formation of resistance appears to be resistant to species relationship.