With the use of chemistry and electron microscop, the histological and the ultrastructural characters of development of Puccinia gramminis f.sp. tritici on a susceptible host were studied.

• 摘要利用化学显微技术和生物电镜技术，系统地研究了小麦秆锈菌在感病寄主上发育过程的组织学及超微结构特征。