Lauderia borealis (Centrales) - Vegetative Vermehrung

zweidimensionales bewegtes Bild

Kieselalge. Kettenförmige Kolonien. Mediane Lage des hantelförmigen Interphasekerns, Wanderung des Kerns zum Zellrand vor der Teilung, Bildung eines "Kernhügels", Kern- und Protoplastenteilung, Übergang der Tochterkerne in die Interphaseform.
The centric planktonic diatom Lauderia borealis forms fragile, chain-like colonies, which easily fragment into single cells. The dumb-bell shaped nucleus is expanded centrally through the cell. Preceding cell division the nucleus moves to the margin of the cell, and contracts to form a nuclear hemisphere at the equator of the cell. After division of both the nucleus and the protoplast the daughter nuclei regain their normal dump-bell shape of the interphase.

Object Details

• Alternative title: Lauderia borealis (Centrales) - Vegetative Reproduction
• Location: Hannover TIB
• Extent: 219MB, 00:03:41:00 (unknown)
• Notes: Audiovisuelles Material ; Stummfilm ; Silent movie

References and Relationships

• Bibliographic citation: Lauderia borealis (Centrales) - Vegetative Vermehrung ; (Jan. 1974)

Classification and Topics

• Keyword: biology ; Encyclopaedia Cinematographica ; Biologie ; reproduction, asexual / Chrysophyceae ; developmental cycles ; algae ; Algen ; Botanik ; Lauderia borealis ; diatom ; Fortpflanzung, ungeschlechtliche / Chrysophyceae ; botany ; Entwicklungszyklen ; Lauderia borealis ; Algen / Kieselalge ; Kieselalge

Contributors, Places and Time

• Event: Veröffentlichung
• (who): IWF (Göttingen)
• (when): 1974-01-01
• Contributor: Drebes, Gerhard

Further information

• DOI: 10.3203/IWF/E-1839
• Last update: 04.12.2024, 8:09 AM CET