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本研究采用电镜技术研究了种衣剂17号对小麦条锈菌发育的影响。观察结果表明,该种衣剂引起病菌和寄主细胞内发生了一系列变化。病菌菌丝和吸器内脂肪粒和液泡明显增加;菌丝壁和吸器壁呈不规则加厚;菌丝分枝处无隔膜产生或隔膜畸形;有的吸器母细胞产生的畸形入侵栓,大都不能穿透寄主细胞壁,初生吸器外间质内沉积有染色较深的物质,次生吸器可产生多个不规则分枝,但不能扩张膨大;菌丝外渗的物质可能引起寄主细胞的坏死;大多数受侵寄主细胞可分泌形成较大的胼胝质,有时寄主细胞分泌的物质可将吸器体完全包围起来。上述结果表明,种衣剂17号不仅可直接作用于条锈菌,而且也可通过影响寄主而间接地影响病菌。
In this study, electron microscopy was used to study the effects of seed coating agent 17 on the development of wheat stripe rust. Observations show that the coating causes a series of changes in germs and host cells. Most of mycelium and aspirate fat particle and vacuole increased significantly; mycelial wall and aspiration wall were irregularly thickened; there was no septum or septal deformity in mycelial branch; most of them could not produce deformity invasion suppository Penetrate the host cell wall, the nascent exoendothelium deposited in the stroma of darker substances, secondary suction device can produce a number of irregular branches, but can not expand expansion; mycelium extravasation of material may cause host cell necrosis; large Most of the affected host cells can secrete larger callose, and sometimes secreted by the host cell can completely surround the body. The above results indicate that Seed Coating No. 17 not only acts directly on Stripe rust but also indirectly affects the germs by affecting the host.