小麦慢锈品种‘平原50’上条锈菌侵染的超微结构观察初报

用光镜和电镜观察以条中２８号小种接种的慢锈品种“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。

Preliminary Ultrastructural Study on Infection Structure of Puccinia striformis in Solw-Rusting Cultivar 'Pingyuan 50'

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.