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Phototaxis bei Desmidiaceen und Diatomeen


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Title Phototaxis bei Desmidiaceen und Diatomeen
Alternative Title Phototaxis of Desmids and Diatoms
Author Wenderoth, Klaus
Contributors Trude Hard (Redaktion)
Elvira Poloczek, Karl-Heinz Seack (Kamera)
Elvira Poloczek (Schnitt)
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.
DOI 10.3203/IWF/C-1496
IWF Signature C 1496
Publisher IWF (Göttingen)
Release Date 1983
Language German
Producer IWF
Production Year 1981

Technical Metadata

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

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Subject Area Life Sciences
Abstract Desmidiaceen steuern Licht direkt an. Positive Phototaxis mit Micrasterias. Weißes, rotes und blaues Reaktionslicht. Lichtfelder verschiedener Größe und Intensität (Resultantengesetz). Massenreaktion bei Cosmarium. Diatomeen erreichen Licht durch Modifikation ihres autonomen Umkehrrhythmus (Rangierbewegung). Positive Phototaxis (Kapillarversuche) und negative Phototaxis mit Navicula peregrina. Sicherheitslicht: 537 nm. Zeitraffung.
Keywords Desmidiaceae
Navicula peregrina
Bewegung / Rangierbewegung

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