IFT can be visualized as the movement of large complexes up and down the inner surface of the flagellar membrane.
This video, taken by Dr. Keith Kozminski, displays time-lapse DIC imaging of a Chlamydomonas flagellum showing IFT. One frame equals 0.1 seconds.
This video, taken by Dr. Zhaohui Wang, displays the movement of GFP-tagged IFT27 protein in the flagella of Chlamydomonas.
