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. 1999 Nov;10(11):3539–3547. doi: 10.1091/mbc.10.11.3539

Figure 1.

Figure 1

Time-lapse video microscopy of a Toxoplasma cell engaged in circular gliding. Freshly harvested parasites in HHE medium were put on BSA-coated glass-bottom microwell plates, and their motility was documented with phase-contrast video microscopy using a 63× lens. The temperature was maintained at 37°C throughout the experiment using a temperature-controlled stage. The time elapsed between each frame is indicated in seconds. The final panel shows a frame-summation of the video, with the arrow indicating the net direction of movement. Bar, 6 μm. The video is shown at 2× real time and is representative of four independent experiments.