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Phototaxis of Desmids and Diatoms

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Logo of IWF (Göttingen)IWF (Göttingen)
 Wenderoth, Klaus

Formal Metadata

Title
Phototaxis of Desmids and Diatoms
Alternative Title
Phototaxis bei Desmidiaceen und Diatomeen
Author
Contributors
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureC 1496
Publisher
Release Date1983
LanguageEnglish
Other Version
Producer
Production Year1981

Technical Metadata

IWF Technical DataFilm, 16 mm, LT, 159 m ; F, 14 1/2 min

Content Metadata

Subject Area
Genre
Abstract
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.
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IWF Classification