Lauderia borealis (Centrales) - Vegetative Vermehrung

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Formal Metadata

Title
Lauderia borealis (Centrales) - Vegetative Vermehrung
Alternative Title
Lauderia borealis (Centrales) - Vegetative Reproduction
Author
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.
Identifiers
IWF Signature
E 1839
Publisher
Release Date
1974
Language
Silent film
Producer
Institut für den Wissenschaftlichen Film (IWF)
Production Year
1971

Content Metadata

Subject Area
Abstract
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.
Keywords Algen / Kieselalge Kieselalge Lauderia borealis Fortpflanzung, ungeschlechtliche / Chrysophyceae reproduction, asexual / Chrysophyceae Lauderia borealis diatom algae
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