Journal article

Tracer studies of food absorption in the digestive tract of Nautilus pompilius (Cephalopoda, Tetrabranchiata)


Authors listWestermann, B; Beuerlein, K; Ruth, P; Schipp, R

Publication year2000

Pages173-179

JournalCell and Tissue Research

Volume number300

Issue number1

ISSN0302-766X

DOI Linkhttps://doi.org/10.1007/s004410050058

PublisherSpringer


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.



Citation Styles

Harvard Citation styleWestermann, 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 Citation styleWestermann, 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



Keywords


autoradiographyC-14-labelled fooddigestive organsFERRITINlight and electron microscopyNautilus pompilius (Cephalopoda)

Last updated on 2025-02-04 at 07:36