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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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