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Cell functions - Reproduction & genetics - Mitosis & cytokinesis - Plant cell - Tradescantia, Commelinaceae
Mitosis & Cytokinesis - Plant Cell: (Tradescantia, Commelinaceae)
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| Description |
The events occuring during division in Tradescantia staminal hairs are typical for vacuolated higher plant cells. The chromosomes are already condensed and the nuclear envelope membrane has disintegrated. Metaphase and anaphase follow. The barrelshaped phragmoplast develops, with the cell plate in its centre [1]. The nuclear envelope disintegrates. The metaphase plate is lying at an angle to the long axis of the cell. The chromatides are coiled around each other. During anaphase the spindle elongates, the phragmoplast and the spindle become orientated along the long axis of the cell, and the cell plate is a right angles to it. By this process two equal daughter cells are formed. The cell plate fuses with the side walls. The middle lamella of the new cell wall is formed from the cell plate. The development of the cell wall is completed by deposition of cellulose [2].
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Sources
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Mitose - Karyo- und Cytokinese bei tierischen und pflanzlichen Zellen. J. BEREITER-HAHN. H. FALK. Publ.: 1977. B&W, com. ger. or engl., 172 m, 16 min. [1] 120 µm; DIC; 4 f/min; [2] 64 µm; DIC; 8 f/min.
IWF, Göttingen: C 1257
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Abbreviations
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Order |
For further films please search the IWF media catalogue for "cell biology".
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