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Rankenbewegungen - 2. Reizort, Reizalter und Reaktionstypen
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Citation of segmentFormal 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 Blattbewegung Bewegung / Rankenbewegung Rankenbewegung Nastien 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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