Summary
Imaginal discs from mature larvae of the fly Calliphora erythrocephala fixed in permanganate and embedded in Epon 812 were observed by electron microscopy. Irrespective of the type of the disc, the endoplasmic reticulum in the cells was found to be in unbroken contact with the outer nuclear membrane, Golgi areas, the mitochondria and the cell membrane. The imaginai discs are syncytial in that all cells are in cytoplasmic communication through secondary breaks in the cell membranes.
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The investigation was facilitated by grants from the Nordic Insulin Foundation.
I am indebted to Mrs. Mariann Carleson and Miss Brita Nilsson for technical aid.
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Agrell, I.P.S. Continuity of the membrane systems in the cells of imaginal discs. Zeitschrift für Zellforschung 72, 22–29 (1966). https://doi.org/10.1007/BF00336894
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DOI: https://doi.org/10.1007/BF00336894