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Osmotische Erscheinungen bei Pflanzenzellen - Plasmolyse. Allium cepa (Liliaceae)


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Title Osmotische Erscheinungen bei Pflanzenzellen - Plasmolyse. Allium cepa (Liliaceae)
Alternative Title Osmotic Phenomena in Plant Cells - Plasmolysis. Allium cepa (Liliaceae)
Author Url, Walter Gustav
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/E-1911
IWF Signature E 1911
Publisher IWF (Göttingen)
Release Date 1973
Language Silent film
Producer IWF
Production Year 1972

Technical Metadata

IWF Technical Data Film, 16 mm, 48 m ; F, 4 1/2 min

Content Metadata

Subject Area Life Sciences
Abstract Küchenzwiebel. Abhebung des lebenden Protoplasten von der Zellwand unter der Einwirkung wasserentziehender (hypertonischer) Lösungen an der Innen- und Außenepidermis. Deplasmolyse, Wiederplasmolyse, verschiedene Plasmolysebilder (konkav, konvex) in unterschiedlichen Lösungen; Bildung von Hechtschen Fäden.
In time-lapse the film shows plasmolysis, i. e. the removal of the living protoplasma from the cell wall under the effect of water withdrawing media in cells of the outer and inner epidermis of the bulb scales of Allium cepa. The film shows the plasmolysis, deplasmolysis and replasmolysis in a glucose solution and the various plasmolysis images in KCl and CaCl2 solutions on outer epidermis cells coloured red by anthocyanin. In the phase-contrast and the dark field, the formation of Hecht's threads is demonstrated on the inner epidermis cells during plasmolysis with CaCl2.
Keywords Küchenzwiebel
Allium cepa
Allium cepa

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