Abstract: The infection threads in root nodules of Elaeagnus confera appear in the intercellular spaces at muItiple cell junctions.No root hairs are observed to be deformed in which nodules appear.The infection threads are scrotiform,containing filamentous materials and stromata;their walls thicken partly or completely and are linked together with host cell walls,Infection threads are varied morphologically.In infected cells of E.confera,cell nuclei swell and produce a few branches and form fingered nuclei.The endo-phytes and organelle in infected cells disappear with the senescene of infected cells.

Key words: Elaeagnus confera, Root nodule, Infection thread, Infected cell, Sub-microscopic structure

摘要： 羊奶果根瘤的侵入线,总是在几个相邻细胞的细胞间隙中出现。在根瘤发生部位未出现根毛的变形。侵入线似一囊状物,其内含物有丝状物和基质,侵入线的壁部分或全部加厚,并与周围的寄主细胞壁相连。侵入线呈多种形态,在被侵染细胞中,细胞核膨大,并分叉变成指状核。随着细胞的衰老,被侵染细胞中的内生菌、细胞器也逐渐消失。

关键词: 羊奶果, 根瘤, 侵入线, 被侵染细胞, 亚显微结构