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Chara spec. - Release and Motility of Spermatozoids   [Title Translation]

Chara spec. - Freilassung und Bewegung der Spermatozoiden   [Other Title]
Année de production: 1981
Genre: Documentary Film
Lieu de tournage: n/a

Générique:
Production company: IWF (Göttingen)
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Author: Walter Gustav Url
  Oswald Kiermayer


Mot-clés: Algen, Armleuchteralge, Armleuchteralge, Chara, Chara, Chlorophyceae, geschlechtliche, geschlechtliche Fortpflanzung, Spermatozoiden, Zellbiologie, cell biology, Chara, Chlorophyceae, sexual, sexual reproduction, spermatozoids
Stoneworts (Charophyta). Antheridia-bearing plants have numerous, chambered, spermatogenous "branches". Each chamber contains a spirally twisted spermatozoid which becomes motile upon maturity and pushes its way out through an opening in the chamber wall. The two long flagella begin coordinated movement about 1/2 hour after the spermatozoid has emerged. With slow-motion.

Version 1
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Durée: 4 min

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Version 2
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Durée: 4 min

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Version 3
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Durée: 4 min

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