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Stephanopyxis turris (Centrales) - Ungeschlechtliche Fortpflanzung durch Dauersporen
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Formal Metadata
| Title | Stephanopyxis turris (Centrales) - Ungeschlechtliche Fortpflanzung durch Dauersporen |
| Alternative Title | Stephanopyxis turris (Centrales) - Asexual Reproduction by the Formation of Perennial Spores |
| Author |
Drebes, Gerhard
|
| License |
CC Attribution - NoDerivatives 3.0 Germany: You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor. |
| DOI | 10.3203/IWF/E-1342 |
| IWF Signature | E 1342 |
| Publisher | IWF (Göttingen) |
| Release Date | 1969 |
| Language | Silent film |
| Producer |
IWF (Göttingen)
|
| Production Year | 1967 |
Technical Metadata
| IWF Technical Data | Film, 16 mm, 94 m ; SW, 8 1/2 min |
Content Metadata
| Subject Area | Life Sciences |
| Abstract |
Kieselalge. Kettenförmige Kolonien; Bildung von Dauersporen: erste Differenzierungsteilung (äqual), zweite Differenzierungsteilung (extrem inäqual, Polarisierung des Zellinhalts infolge des Streckungswachstums), Keimung der Dauersporen. Mit Zeitraffung. Stephanopyxis is capable of interrupting its vegetative reproduction by the formation of resting spores. The resting spores are formed in pairs via two differentiating cell divisions. The first division is equal, the second, however, extremely unequal, since during growth in the longitudinal direction the cell contents are polarized. Resting spores germinate by beginning with normal vegetative cell divisions. The walls of the spores are not shed but passed along from division to division. |
| Keywords |
Algen / Kieselalge Kieselalge Stephanopyxis turris Zellteilung / Chrysophyceae Fortpflanzung, ungeschlechtliche / Chrysophyceae reproduction, asexual / Chrysophyceae cell division / Chrysophyceae Stephanopyxis turris diatom algae |
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