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See detailChitin location and subcellular organization during heterologous expression of chitin deacetylase in yeast Pichia pastoris
Jaspar-Versali, Marie-France ULg; Aifa, Karim; Compère, Philippe ULg et al

in Domard, Alain; Jeuniaux, Charles; Muzzarelli, Ricardo (Eds.) et al Advances in chitin sciences, volume I (1996)

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See detailThe digestive system of adult carabid beetles : an ultrastructural and histoenzymological study
Jaspar-Versali, Marie-France ULg; Goffinet, Gerhard ULg; Jeuniaux, Charles ULg

in Acta Botanica Academiae Scientiarum Hungaricae (1987), 22(1-4), 375-382

The morphological organization and the enzymatic equipment diversity of each digestive segment were studied by means of histology, electron microscopy and histoenzymology in seven carabid species ... [more ▼]

The morphological organization and the enzymatic equipment diversity of each digestive segment were studied by means of histology, electron microscopy and histoenzymology in seven carabid species : Carabus splendens, C. nemoralis, C. arvensis, C. problematicus, C. cancellatus, Abax parallelepipedus and Pterostichus melanarius. A particular function was attributed to each alimentary canal segment. The foregut is a mechanically functioning unit ensuring filtration and, in some cases, the site of temporary food storage. It is also the main site of food digestion, the digestive enzymes originating from regurgitated midgut fluid. The anterior region of the midgut plays a role in secretion and absorption processes, whereas the posterior one is the site of intracellular products storage, as well as of excretion and hydromineral regulation. The gastric caeca have a double function since they contain nests of regeneration cells and digestive glands. The hindgut disionic regulation. The fact that the digestive enzymatic equipment of carabids is well diversified (proteases, several polysaccharidases and oligosaccharidases) can be interpreted as a primitive character. [less ▲]

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See detailL'équipement enzymatique digestif des Carabes envisagé sous l'angle de leur niche écologique
Jaspar-Versali, Marie-France ULg; Jeuniaux, Charles ULg

in Revue d'écologie et de biologie du sol (1987), 24(4), 541-547

Distribution of chitinase, cellulase, amylase, laminarinase and proteolyc hydrolases in the digestive tract of Carabid beetles as well as of other Insects is in good agreement with their usual diet and ... [more ▼]

Distribution of chitinase, cellulase, amylase, laminarinase and proteolyc hydrolases in the digestive tract of Carabid beetles as well as of other Insects is in good agreement with their usual diet and ecological niche. [less ▲]

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