Article (Scientific journals)
Contributions à la biochimie du ver à soie. XXVII. Tréhalose, tréhalase et mue
Duchâteau-Bosson, Gh.; Jeuniaux, Charles; Florkin, Marcel
1963In Archives Internationales de Physiologie et de Biochimie, 71 (4), p. 566-576
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Keywords :
plasma sanguin; Insectes; glucides fermentescibles; tréhalose; dihololoside non réducteur, non fermentescible; hémolymphe; glucose; atome de carbone radioactif; tube digestif; Schistocerca; ver à soie; tissu adipeux; tréhalose-phosphate; glucose-6-phosphate; UDPG
Abstract :
[en] During the development of the Silkworm, the amount of blood trehalose sharply decreases at each moult, and also during the fasting period corresponding to spinning. The fall of blood trehalose concentration during the moults is related to the release of the inhibition of the trehalase present in the hemolymph. The presence of a trehalase in the muscles and in the digestive tract is confirmed. This enzyme has not been detected in the fat body, in the epidermis or in the silkglands. In the fat body, there exists an inverse relationship between glycogen and trehalose, the former disappearing almost completely at each moult, whereas the amount of trehalose tends to remain at a nearly constant level. On the other hand, the bulk of the fat body is consumed to a large extent during the periods of chitin synthesis. The gluconeogenesis during the silkworm development and the metabolism of chitin synthesis at each moult, are discussed in the light of these experimental data.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Duchâteau-Bosson, Gh.;  Université de Liège - ULiège > Institut Léon Fredericq > Biochimie
Jeuniaux, Charles ;  Université de Liège - ULiège > Institut Léon Fredericq > Biochimie
Florkin, Marcel ;  Université de Liège - ULiège > Institut Léon Fredericq > Biochimie
Language :
French
Title :
Contributions à la biochimie du ver à soie. XXVII. Tréhalose, tréhalase et mue
Publication date :
1963
Journal title :
Archives Internationales de Physiologie et de Biochimie
ISSN :
0003-9799
Publisher :
Vaillant Carmanne, Liège, Belgium
Volume :
71
Issue :
4
Pages :
566-576
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 May 2016

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