Étude ultra-structurale de la glande digestive du homard Homarus gammarus: rôle des divers types cellulaires dans les processus digestifs = Ultra-structural study of the digestive gland of the lobster Homarus gammarus: the role played by different cell types in digestive processes
Paquet, F.; Germain, P.; Fritsch, P. (1993). Étude ultra-structurale de la glande digestive du homard Homarus gammarus: rôle des divers types cellulaires dans les processus digestifs = Ultra-structural study of the digestive gland of the lobster Homarus gammarus: the role played by different cell types in digestive processes. Cah. Biol. Mar. 35(1): 15-37
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, meer
|   |
| Auteurs | | Top |
- Paquet, F.
- Germain, P.
- Fritsch, P.
|
|
|
| Abstract |
An ultra-structural study is realized on the digestive gland of the lobster Homarus gammarus. This work shows the presence of five cellular types, four of them being involved in the digestive processes. One type (E-cell) has embryonic characteristics and differentiate, along digestive cycle, into F-cells or R-cells. F-cells appear to play a role in secretory processes, whilst R-cells are responsible for resorption and long-term retention of nutrients. Only one type (B-cell) is involved in nutrient incorporation and digestion. The fifth cellular type are in fact blood cells, which penetrate into hepato-pancreatic tissue and act as the vertebrate macrophage cells. |
|
