Spermatozoa Chemotaxis

Embryology - 20 May 2024        Expand to Translate
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Sea Urchin Spermatozoa Chemotaxis Modern version of Lillie's historic 1902 sea urchin spermatozoa experiment. Chemotaxis is the attractive movement of an organism in response to a chemical stimulus, usually toward or "up" the chemical concentration gradient. Release of resact with a UV flash induces accumulation of sperm in the illuminated area while an annulus around the flash becomes depleted of sperm. After several seconds, the gradient dissipates because of resact binding and diffusion. (text from figure legend) Links: MP4 version | Fertilization | Spermatozoa Development | Sea Urchin Development | Movies

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Reference

<pubmed>23183693</pubmed>| J Gen Physiol.

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