【摘要】 用光镜和电镜观察以条中28号小种接种的馒锈品种‘平原50’和感病品种‘铭贤169’的病理组织和超微结构。光镜观察发现两品种在侵入阶段无明显差异。在接种5天后，两品种中的菌落大小，吸器个数上出现较明显差异。与感病品种‘铭贤169’进行电镜比较观察，在慢锈品种‘平原50’中发现如下现象：在吸器外基质（EM）出现染色较深的物质；吸器周围有大量增生的膜复合体（MC）和内质网（ER）；有一吸器的分支出现；有叶绿体向吸器移动的现象。更多还原

【Abstract】 Pathological and ultrastructural differences between wheat cultivar ’Mingxian 169’ (susceptible check) and ’Pingyuan 50’ (slow-ruster) infected by Chniese stripe rust 28 were observed by mesns of light and electron microscope. Results of observation by light microscope showed that no differences in penetration stage betwee ’Mingxian 169’and ’Pinyuan 50’. Obvious differences in terms of area of colony and number of haustoria per colony between cultivars occurred after 5-days inoculation. Results of electron micro-scope observation as compared with ’Mingxian 169’ showed that some phenomena in ul-trastructure of ’Pingyuan 50’ as following: the more densely staining of extrahaustorial matrix (EM); proliferation of membrane complex (MC) and endoplastid reticulum (ER) around extrahaustorial membrane (EHM ); the occurence of a branch of haustorium;chloroplastid moving to haustorium.更多还原