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采用人工控制接种和发病条件，对硬粒小麦品种和与其亲和的从硬粒小麦上分离到的小麦叶枯病菌株以及软粒小麦品种和与其亲和的从软粒小麦上分离到的小麦叶枯菌株２个组合进行了病程的病理组织学研究。结果表明：接种后１２ｈ，分生孢子发芽并从气孔侵入气孔空腔，病害潜育期为８～１０ｄ；接种后１４ｄ，聚集在气孔空腔内的菌丝体开始以气孔空腔为模板形成分生孢子器并伴有个别分生孢子器完全形成和分生孢子成熟，病组织上病原大量释放下代再侵染分生孢子一般在侵入后１６ｄ。因此，该病在小麦生育期可完成多次再侵染。
Using artificially controlled inoculation and onset conditions, the isolates of durum wheat cultivars and their isolates of wheat leaf blight isolates from durum wheat, as well as the soft wheat varieties and the wheat isolated from soft wheat Two combinations of leaf blight strains were pathologically histologically studied. The results showed that 12h after inoculation, the conidia germinated and invaded into the stomatal cavity from the stomata, and the latent period of disease was 8 to 10 days. At 14 days after inoculation, the mycelium accumulated in the stomatal cavity began to form with the stomatal cavity Conidia with concomitant individual conidia completely formed and conidia mature, a large number of pathogens on the release of the next generation of re-infecting conidia generally invaded 16d. Therefore, the disease can be re-infected multiple times during the growth period of wheat.