Journalartikel

Jahr der Veröffentlichung: 2000

Seiten: 173-179

Zeitschrift: Cell and Tissue Research

Bandnummer: 300

Heftnummer: 1

ISSN: 0302-766X

DOI Link: https://doi.org/10.1007/s004410050058

Verlag: Springer

Abstract: 
In Nautilus pompilius, tracer experiments with C-14-labelled food show that the midgut gland, caecum and crop are involved in absorption of nutrients. According to liquid scintillation and light- and electron-microscopic autoradiography, the midgut gland exhibits the highest activity, followed by the caecum and crop. The density of silver precipitates is highest in the terminal alveoli of the midgut gland. Precipitates are also seen in the main cells of the caecal epithelium. Few precipitates are found in the lamina epithelialis mucosae of the crop, indicating that, in addition to food storage, digestive processes begin in this organ. These results have been confirmed by injection of the protein ferritin into the buccal cavity. The largest amount of ferritin is seen in the dense bodies of the main cells of the midgut gland, whereas those of the main cells of the caecum and crop contain less ferritin.

Harvard-Zitierstil: Westermann, B., Beuerlein, K., Ruth, P. and Schipp, R. (2000) Tracer studies of food absorption in the digestive tract of Nautilus pompilius (Cephalopoda, Tetrabranchiata), Cell and Tissue Research, 300(1), pp. 173-179. https://doi.org/10.1007/s004410050058

APA-Zitierstil: Westermann, B., Beuerlein, K., Ruth, P., & Schipp, R. (2000). Tracer studies of food absorption in the digestive tract of Nautilus pompilius (Cephalopoda, Tetrabranchiata). Cell and Tissue Research. 300(1), 173-179. https://doi.org/10.1007/s004410050058