Dynamique et enzymologie de la digestion chez l'huitre Crassostrea gigas

Feeding experiments carried out on Crassostrea gigas allowed the authors to set up the stages and the timing of the movement of food throughout the digestive tract. Various activities involved in digestion (glycosidases, esterases, and peptidases) were investigated histochemically in the digestive t...

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Bibliographic Details
Main Authors: Boucaud, C, Lebesnerais, C, Lubet, P, Lihrmann, I
Format: Conference Object
Language:French
Published: Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1985 1983
Subjects:
Crassostrea gigas
Bivalvia
Cytology
Histochemistry
Histology
Digestive system
Enzymatic activity
Digestive glands
Digestion
Enzymes
Transit digestif
Huitre
Online Access:https://archimer.ifremer.fr/doc/1983/acte-1179.pdf
https://archimer.ifremer.fr/doc/00000/1179/
Description
Summary:Feeding experiments carried out on Crassostrea gigas allowed the authors to set up the stages and the timing of the movement of food throughout the digestive tract. Various activities involved in digestion (glycosidases, esterases, and peptidases) were investigated histochemically in the digestive tract in order to localize the sites of absorption and the sites of protein and carbohydrate digestion. An explicative model of the different stages of digestion is proposed. Chez Crassostrea gigas (Thunberg) des expériences d'alimentation contrôlée ont permis d'établir les modalités et la chronologie du transit alimentaire. Différentes activités enzymatiques en relation avec la digestion (glycosidases, esterases et peptidases) ont été localisées dans l'appareil digestif et ont permis de préciser les sites de digestion des glucides et des protides et les sites d'absorption. Un schéma explicatif des différentes étapes de la digestion est proposé.

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