Influence of starvation and feeding on the hepatopancreas of larvalHyas araneus (Decapoda,Majidae) |
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Authors: | V Storch K Anger |
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Institution: | 1. Zoologisches Institut, Im Neuenheimer Feld 230, D-6900, Heidelberg, Federal Republic of Germany 2. Biologische Anstalt Helgoland (Meeresstation), D-2192, Helgoland, Federal Republic of Germany
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Abstract: | Zoea-1 larvae ofHyas araneus were kept under different nutritional conditions. Their midgut glands were investigated with a transmission electron microscope. The glandular epithelium consists of the cell types known from adult decapods. It is mainly the R-cell type that undergoes ultrastructural alterations which reflect nutritional conditions. R-cells of fed larvae are characterized by large lipid inclusions; after a certain period of food deprivation (point-of-no-return) the original ultrastructure cannot be reestablished. Refeeding results in large glycogen deposits in these cells. |
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