小麦条锈菌吸器母细胞超微结构的研究

本文利唱电镜技术研究了小麦条锈菌吸器母细胞的超微特征。观察发现,小麦条锈菌吸器母细胞大部位于胞间菌丝的顶部,但也可形成于两菌丝细胞间,同一菌丝细胞上可着生多个吸器母细胞,吸器母细胞的多核现象较为普遍。吸器母细胞壁由6层组成,而其隔膜可分辩为4层。细泡化学染色结果表明隔膜突中含有多糖类物质,吸器母细胞隔膜突的出现和消失与吸器的发育密切相关。本文结果表明小麦条锈菌吸器母细胞的一些超微特征明显不同于其它锈菌。

ULTRASTRUCTURE OF HAUSTORIAL MOTHER CELL OF WHEAT STRIPE RUST

Ultrastructure of haustorial mother cell of wheat stripe rust was studied with electron microscopy. It was observed that haustorial mother cells could be formed between intercellular hyphal cells while most of them usually located on the tip of intercellular hyphae. There were Several haustorial mother cells formed on the same intercellular hyphal cell, and multinuclear condition in haustorial mother cell was very common, Six layers in haustorial mother cell wall and four in haustorial mother cell septum were recognized. Cytochemical staining revealed that the protrusion of haustorial mother cell septum contained polysaccharide. Forthermore, the appearance and disappearance of the protrusion were found to be related to the development of haustorium. The results here showed that some of ultrastructural characteristics of the haustorial mother cell of wheat stripe rust was evidently different from those of other rusts.