Summary
The electron microscopical investigation of Y-organs of Astacus astacus revealed that during intermoult (stage C) the cytoplasm is poorly developed and that it increases at premoult (stage D). It then shows the typical signs of steroid production, namely agranular endoplasmic reticulum and mitochondria of the tubular type. Furthermore, a larger type of mitochondria with a regular pattern of internal structure is described.
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Supported by Sächsische Akademie der Wissenschaften zu Leipzig
We are grateful for technical assistance to Mrs. B. Cosack und Mrs. A. Schmidt
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Birkenbeil, H., Gersch, M. Ultrastructure of the Y-organ of Astacus astacus (L.) (Crustacea) in relation to the moult cycle. Cell Tissue Res. 196, 519–524 (1979). https://doi.org/10.1007/BF00234744
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DOI: https://doi.org/10.1007/BF00234744