Human sperm steer with second harmonics of the flagellar beat

oleh: Guglielmo Saggiorato, Luis Alvarez, Jan F. Jikeli, U. Benjamin Kaupp, Gerhard Gompper, Jens Elgeti

Format: Article
Diterbitkan: Nature Portfolio 2017-11-01

Deskripsi

The mechanism allowing sperm to steer is not fully understood. The authors find that superposition of two harmonic waves breaks the flagellar beat symmetry temporally rather than spatially, and that this mechanism is enhanced by the sexual hormone progesterone, which changes the motility pattern.