CIL:24567

A frame from the grouped movie of a Balamuthia mandrillaris ameba within a culture of monkey kidney cells. Accompanying photographs are enlargements of the tips of pseudopodia to demonstrate their flexibility and movement, and a second set of photographs demonstrate the puncture of the plasma membrane of a monkey kidney cell. The first shows an indentation in the cell membrane, the withdrawal of the pseudopodia tip and the subsequent rupture of the membrane in the area indented by the amebic tip. The eventual break in the membrane may have resulted from the release of a proteolytic enzyme. Details of the preparation can be found in CIL:19325.本素材取自猴肾细胞培养物中曼德里尔巴姆虫（Balamuthia mandrillaris）群组影像序列的单帧画面。随附照片为伪足（pseudopodia）尖端的放大图像，用于展示其柔韧性与运动特性；第二组照片则展示了猴肾细胞质膜（plasma membrane）被刺穿的完整过程：该组的首张画面依次呈现细胞膜出现凹陷、伪足尖端回缩，以及虫体尖端压迫凹陷区域后质膜随之破裂的过程。质膜的最终破裂可能源自蛋白水解酶（proteolytic enzyme）的释放。本实验制备的详细信息可查阅CIL:19325。