采用示踪方法研究了条锈菌侵染早期小麦叶片的RNA和rRNA合成。结果表21h期间,表现不亲和性反应的叶片总RNA合成有所增加,而亲和性反应寄主叶片则低rRNA合成未受侵染影响。在接种后39～45h期间,只有呈亲和性反应的寄主叶片RNA和大幅度增加。对rRNA各组分合成的测定表明条锈菌侵染所影响的只是大分子量rRNA,胞质和叶绿体rRNA的合成也存在差别。文中讨论了上述变化的病理学意义。 Tracing the RNA and rRNA synthesis of early wheat leaves infected by stripe rust. As a result, the synthesis of total RNA of the leaves showing no affinity reaction increased during the period of Table 21h, while the affinity of the host leaves showed that the synthesis of low rRNA was uninfluenced by the infection. During the 39-45 h period after inoculation, only the avian host RNAs that had an affinity response increased significantly. The determination of the synthesis of rRNA components showed that stripe rust infection only affected high molecular weight rRNA, and the synthesis of cytoplasm and chloroplast rRNA also differed. The paper discusses the pathological significance of the above changes.