ISSN:
1570-7458
Keywords:
Callosobruchus maculatus
;
Tribolium confusum
;
legume
;
secondary plant compound
;
castanospermine
;
alkaloid
;
digestive carbohydrases
;
α-D and β-D-glucosidase and β-D-galactosidase inhibitor
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Description / Table of Contents:
Résumé La castanospermine, substance secondaire végétale, incorporée à l'aliment est toxique pour les larves de Callosobruchus maculatus F. et de Tribolium confusum J. & V. Les activités α-D-glucosidase et β-D-glucosidase du tube digestif de C. maculatus ont été fortement inhibées par la castanospermine respectivement de façon non-compétitive et compétitive. L'activité β-D-glucosidase du tube digestif de T. confusum était, fortement inhibée d'une façon compétitive, mais l'activité α-D-glucosidase n'était pas nettement inhibée; cependant, l'activité β-D-galactodase ne présentait pas une forte inhibition compétitive.
Notes:
Abstract The secondary plant compound castanospermine is toxic to the larvae of the bruchid beetle Callosobruchus maculatus F. and the flour beetle Tribolium confusum J. & V. when incorporated into the diet. The larval alimentary tract α-D-glucosidase and β-D-glucosidase activities of C. maculatus were strongly inhibited by castanospermine in a non-competitive and competitive manner respectively. The larval alimentary tract β-D-glucosidase activity of T. confusum was strongly inhibited in a competitive manner, but the α-D-glucosidase activity was not markedly inhibited; however, the β-D-galactosidase activity exhibited strong uncompetitive inhibition.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00186160
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