Salem S A, Azab M E, Soffar S A, Bishara S A, el Kadery A A
J Egypt Soc Parasitol. 1989 Dec;19(2):461-4.
The ultrastructure of penetrating Giardia lamblia trophozoites in immunosuppressed albino rats is described for the first time. Recorded changes in the general contour of the parasite; loss of flagellae, and suction disc, disappearance of the endoplasmic reticulum, appearance of abundant electron dense coarse granules as well as large sized vacuoles opening to outside, are probably modifications associated with penetration and accommodation to the new environment. Penetration appears to be due to activity of the trophozoite rather than passive transfer by tissue macrophages.
首次描述了免疫抑制白化大鼠体内穿透性蓝氏贾第鞭毛虫滋养体的超微结构。记录到的寄生虫总体轮廓变化;鞭毛和吸盘的丧失,内质网的消失,大量电子致密粗颗粒的出现以及通向外部的大尺寸液泡,可能是与穿透和适应新环境相关的改变。穿透似乎是由于滋养体的活动,而不是组织巨噬细胞的被动转移。