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Plasmodesmata between synchronously and asynchronously developing cells of the antheridial filaments ofChara vulgaris L.

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Summary

Plasmodesmata connecting synchronously developing cells are filled with electron-transparent, homogenous ground cytoplasm. At the middle lamella, their average diameter is about 67 nm; the relative area occupied by plasmodesmata is calculated to be about 8 to 9% of the wall.

Plasmodesmata occurring between cells which develop asynchronously are plugged by an electron-dense homogenous material. The plug fits tightly to the plasmalemma inside the plasmodesmatal canal. Occasionally (in 8% of the walls), the closing plugs are also found between synchronously dividing cells. Generally, the plugging takes place in the walls formed at the first stages of development of the antheridial filaments and is probably an irreversible process.

It is supposed that the plugging of plasmodesmata is the cause of the appearance of two or more synchronous cell groups within a single filament.

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Author notes

  1. Maria Kwiatkowska

    Present address: Laboratory of Plant Cytology and Cytochemistry, Institute of Physiology and Cytology, University of Łódź, Łódź, Poland

Authors and Affiliations

  1. Laboratory of Plant Cytology and Cytochemistry, Institute of Physiology and Cytology, University of Łódź, Łódź, Poland

    Janusz Maszewski

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  1. Maria Kwiatkowska
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  2. Janusz Maszewski
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Kwiatkowska, M., Maszewski, J. Plasmodesmata between synchronously and asynchronously developing cells of the antheridial filaments ofChara vulgaris L.. Protoplasma 87, 317–327 (1976). https://doi.org/10.1007/BF01624003

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  • DOI: https://doi.org/10.1007/BF01624003

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