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The formation of ring canals by cell furrows in Drosophila

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Summary

Fifteen ring canals or intercellular bridges connect the oocyte and 15 nurse cells in Drosophila. Recently, Koch and King (1969) proposed that these ring canals formed independently of a cell furrow and that cytokinesis during the 4 cell divisions producing the 16 cells occurred through fusion of vesicles aligned along the division plane. Serial sections of germaria, fixed with glutaraldehyde, have been studied with the electron microscope, and no evidence has been found for fusion of vesicles in the cleavage of cells. The probability that the chromate-OsO4 fixation used by Koch and King resulted in an artifact is discussed.

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Authors and Affiliations

  1. The Institute for Cancer Research, Fox Chase, Philadelphia, Pennsylvania, USA

    Anthony P. Mahowald

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  1. Anthony P. Mahowald
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The author gratefully acknowledges the assistance of Mrs. Joan Chlebowski; and the support of National Science Foundation grants GB-9780, GB-5780 and GB-24956; National Institutes of Health grant RR-05539; and an appropriation from the Commonwealth of Pennsylvania.

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Mahowald, A.P. The formation of ring canals by cell furrows in Drosophila . Z. Zellforsch. 118, 162–167 (1971). https://doi.org/10.1007/BF00341561

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  • DOI: https://doi.org/10.1007/BF00341561

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