Video: Petunia Pollen Tube Growth with Cytoplasmic Streaming / Cyclosis

The preview version on Youtube is embedded below:

You can clearly see the cytoplasmic streaming involved in pollen tube tip elongation.

400x bright-field magnification, lighting at high level with low exposure times, 30fps video taken originally at 1 frame per second (30 seconds of tube growth activity = 1 second of video).

You can license this video for commercial purposes on Gumroad at


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