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Phototaxis bei Desmidiaceen und Diatomeen   [Other Title]

Phototaxis of Desmids and Diatoms   [Title Translation]
Year of origin: 1980-1981
Genre: Documentary Film
Locations of shooting: n/a

Credits
Author: Klaus Wenderoth
Producer: Trude Hard
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Production company: IWF (Göttingen)
Editing: Elvira Poloczek
Photography: Elvira Poloczek, Karl-Heinz Seack


Keywords: Bewegung, Cosmarium, Desmidiaceae, Micrasterias, Navicula peregrina, Phototaxis, Rangierbewegung, Rangierbewegung, Zellbiologie, cell biology, movement, phototaxis, shunting movement, shunting movement
Desmids move towards light: positive phototaxis with Micrasterias, tested with white, red and blue light; light fields of varying size and intensity. Mass response demonstrated with Cosmarium. Diatoms reach a more illuminated environment by modifying their reversal rhythm ("shunting movement"). Positive phototaxis (capillary experiment) and negative phototaxis demonstrated with Navicula peregrina. Safety light: 537 nm. Time-lapse.

Version 1
Language: deu, eng
Sound: Sound film
Aspect: n/a
Duration: 14 1/2 min

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Version 2
Language: deu, eng
Sound: Sound film
Aspect: n/a
Duration: 14 1/2 min

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Version 3
Language: deu, eng
Sound: Sound film
Aspect: n/a
Duration: 14 1/2 min

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Length 159 m Request Copy Button
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Copyright Information IWF Institut Wissen und Medien gGmbH
License Information Film can be licensed