Summary
The investigation of hepatopancreatic cells following damage to the shell revealed hypertrophic alterations of several Cytoplasmic organelles. The network of endoplasmic reticulum was extensively developed within both digestive and calcium cells. The arrangement of tubules exhibited a peculiar hexagonal pattern. It is suggested that the reticulum is of agranular type and may be engaged in the transport of lipids and calcium ions. Remarkable alterations were observed in mitochondria, apparently as the result of their hyperfunction. Mitochondria with reduced cristae, with two-layered transverse septum, and with bleb-like protrusions, occurred frequently. In the calcium cells, helically entwined fibres appeared among the fragments of disintegrated calcium spherites. The results of the investigation and the possible presence of collagen in the fibres originating from disintegrated spherites are discussed.
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This investigation was supported by grants from the Swedish Natural Science Research Council, which are gratefully acknowledged. The author wishes to thank Mrs. I. Rehnberg for technical assistance.
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Abolinš-Krogis, A. Alterations in the fine structure of cytoplasmic organelles in the hepatopancreatic cells of shell-regenerating snail, Helix pomatia L.. Z. Zellforsch. 108, 516–529 (1970). https://doi.org/10.1007/BF00339657
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DOI: https://doi.org/10.1007/BF00339657