Chemisch erzeugte Bewegungen isolierter Strukturen von Zellorganellen

zweidimensionales bewegtes Bild

Chemische Reizung kontraktiler Zellstrukturen (Vorticellenstiele, Trichozyten, Flimmerepithel) durch Gabe von Ca{++}, EDTA, Kationen, ATP, Salurgan, Detergentien. Reaktion je nach Zusatzstoff in Form von Kontraktion, Streckung, Erschlaffung oder Bewegung.
Cheimically Induced Movements of Isolaated Structures from Cell Organelles. Cytolysed and extracted stalks from Vorticella contract in the presence of calcium ions. If the calcium ions are removed and replaced with EDTA, the stalks elongate. Cations from invert soaps cause contractions. Rhythmic contractions occur when calcium ions and ATP are both present. Addition of salyrgan induces a state of continuous relaxation, which can be neutralized by adding detergents. This relaxed-state can also be brought about by relaxing factor from mammalian muscles when ATP is persent. Isolated trichocysts elongate when exposed to calcium ions. Their movement is slowed by protamin. In conclusion, the beating frequency of ciliated epithelial cells isolated and extracted from a frog is shown to increase with increasing ATP concentration. Poisoning with salyrgan the movement of these cilia.

Object Details

• Alternative title: Chemically Produced Movements in Isolated Structures of Cell Organelles
• Location: Hannover TIB
• Extent: 100MB, 00:08:07:00 (unknown)
• Notes: Audiovisuelles Material ; Stummfilm ; Silent movie

References and Relationships

• Bibliographic citation: Chemisch erzeugte Bewegungen isolierter Strukturen von Zellorganellen ; (Jan. 1960)

Classification and Topics

• Keyword: Gleitfilamenttheorie ; Myofibrillen ; subcellular fractions / drug effects ; chemistry ; Chemie ; Muskelkontraktion ; Zellbewegung / Arzneimitteleffekte ; organic chemistry ; medicine ; myofibrils ; Medizin ; subzelluläre Fraktionen / Arzneimitteleffekte ; muscle contraction ; Zytologie, Zyto- und Histopathologie ; cytology, cyto- and histopathology ; cell movement / drug effects ; Zellstruktur ; Organische Chemie ; Pathologie und Rechtsmedizin ; pathology and forensic medicine

Contributors, Places and Time

• Event: Veröffentlichung
• (who): IWF (Göttingen)
• (when): 1960-01-01
• Contributor: Hoffmann-Berling, Hartmut

Further information

• DOI: 10.3203/IWF/B-817
• Last update: 04.12.2024, 8:09 AM CET