Phototaxis of Desmids and Diatoms

Video in TIB AV-Portal: Phototaxis of Desmids and Diatoms

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 Signature
C 1496
Publisher
Release Date
1983
Language
English
Producer
IWF
Production Year
1981

Technical Metadata

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

Content Metadata

Subject Area
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.
Keywords phototaxis shunting movement movement / shunting movement cell biology Cosmarium Micrasterias Navicula peregrina Desmidiaceae
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Timings

  407 ms - page object

Version

AV-Portal 3.20.2 (36f6df173ce4850b467c9cb7af359cf1cdaed247)
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