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Rankenbewegungen - 2. Reizort, Reizalter und Reaktionstypen


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Formal Metadata

Title Rankenbewegungen - 2. Reizort, Reizalter und Reaktionstypen
Alternative Title The Movements of Tendrils - 2. Region and Age of Stimulation, Types of Reaction
Author Denffer, Dietrich von
License No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI 10.3203/IWF/C-678
IWF Signature C 678
Publisher IWF (Göttingen)
Release Date 1955
Language Silent film
Producer Justus-Liebig-Hochschule Gießen, Botanisches Institut
Production Year 1954

Technical Metadata

IWF Technical Data Film, 16 mm, 90 m ; SW, 8 1/2 min

Content Metadata

Subject Area Life Sciences
Abstract Verschiedene Versuche zu Reizort, -alter und Reaktionstypen: Die Ranke muß ein Mindestalter haben; nur der obere Teil der Ranke ist reizbar. Die Ranke von Cissus discolor ist allseitig empfindlich und reaktionsfähig, während Passiflora gracilis allseitig empfindlich, aber nur einseitig reaktionsfähig ist. Extreme Dorsiventralität von Bryonia dioica.
The film shows the area of stimulation and age of stimulation of tendrils and types of reaction movements of tendrils. Only the upper part of the tendril is capable of stimulation. Apart from this the tendril must have reached a minimum age. As types of rection are shown: from all sides sensitive and capable of reaction, from all sides sensitive and on one side capable of reaction, as well as extreme dorsiventralism. These tendril motions are in the film shown on Passiflora gracilis, Cissus discolor and Bryonia dioica.
Keywords Bryonia dioica
Passiflora gracilis
Cissus discolor
Bewegung / autonome Bewegung
Bewegung / Blattbewegung
Bewegung / Rankenbewegung
autonome Bewegung
autonomous movement
nastic movements
tendril movement
movement in plants / tendril movement
leaf movement
movement / leaf movement
movement in plants / autonomous movement
Cissus discolor
Passiflora gracilis
Bryonia dioica

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