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Rankenbewegungen - 2. Reizort, Reizalter und Reaktionstypen

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
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.
Identifiers
IWF SignatureC 678
Publisher
Release Date
Language
Producer
Production Year1954

Technical Metadata

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

Content Metadata

Subject Area
Genre
Abstract
German
German
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.
English
English
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
German
German
English
English
IWF Classification
German
German
English
English