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Published online by Cambridge University Press: 19 September 2011
The effect of methionine on longevity, antioxygenic enzymes and lipid peroxides in Callosobruchus maculatus was investigated using C. maculatus maintained on Vigna radiata seeds soaked in seven levels of methionine, 0, 1, 3, 5, 7, 9 and 12 mg/ml water. The life span and activities of catalase and peroxidase were higher in Callosobruchus maculatus infesting Vigna radiata seeds soaked in methionine as compared to their control cohorts. However, the lipid peroxide (malondialdehyde; MDA) levels generally remained unaltered. The present observation on the increased longevity in C. maculatus with methionine level is an extension of earlier findings on its anti-ageing effect in higher animals.
L'effet de la méthionine sur la longevité, les enzymes antioxygéniques et les péroxydes de lipide chez Callosobruchus maculatus a été étudié sur C. maculatus cultivé sur de la graine de Vigna radiata. La graine a été trempée dans de la méthionine à 7 concentrations, à savoir 0, 1, 3, 5, 7, 9 et 12 mg de méthionine par ml d'eau. La durée de vie et les activités du catalase et du peroxidase ches Callosobruchus maculatus infestant les graines de Vigna radiata trempées dans la méthionine ont été supérieures, comparées aux cohortes témoins. Cependant, les niveaux du peroxide de lipide (malondialdehyde, MDA) étaient restés générallement inchangés. La présente observation sur la longevité accrue de C. maculatus avec le méthionine ajoute aux trouvailles antérieures sur son effet anti-vieillisement chez les animaux supérieures.
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