Search results for "métabolite"

showing 2 items of 2 documents

Cytochrome P450-dependent metabolism of caffeine in [i]Drosophila melanogaster[/i]

2014

Caffeine (1, 3, 7-trimethylxanthine), an alkaloid produced by plants, has antioxidant and insecticide properties that can affect metabolism and cognition. In vertebrates, the metabolites derived from caffeine have been identified, and their functions have been characterized. However, the metabolites of caffeine in insects remain unknown. Thus, using radiolabelled caffeine, we have identified some of the primary caffeine metabolites produced in the body of Drosophila melanogaster males, including theobromine, paraxanthine and theophylline. In contrast to mammals, theobromine was the predominant metabolite (paraxanthine in humans; theophylline in monkeys; 1, 3, 7-trimethyluric acid in rodents…

MaleMetabolite[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutritionlcsh:MedicineéthanolPharmacology[ SDV.BA ] Life Sciences [q-bio]/Animal biologychemistry.chemical_compound0302 clinical medicineCytochrome P-450 Enzyme Systemmétabolitelcsh:SciencemetabolitesParaxanthinecaféinecaffeineAnimal biology0303 health sciencesMultidisciplinarybiologyAlkaloid[SDV.BA]Life Sciences [q-bio]/Animal biologymétabolisme des xénobiotiquesxenobiotic metabolism3. Good healthBiochemistryAlimentation et Nutritioncaffeine;xenobiotic metabolism;drug metabolism;metabolites;drosophila melanogaster;theobromine;ethanolCaffeinemedicine.drugResearch Articledrosophila melanogasterXenobioticsmétabolisme enzymatique03 medical and health sciencesBiologie animalemedicineAnimalsFood and NutritionTheophyllineGene SilencingTheobromine030304 developmental biologytheobrominelcsh:RfungiCytochrome P450drug metabolismchemistrybiology.proteinlcsh:Qethanol[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition030217 neurology & neurosurgeryDrug metabolism
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Les herbicides β-tricétones : devenir et impact écotoxicologique dans les sols agricoles et caractérisation de souches bactériennes dégradantes

2016

P-triketone herbicides : fate and ecotoxicological impact in arable soils and characterization of degrading bacterial strains abstract :This work aims to describe the ecodynamics of synthetic (sulcotrione and mesotrione) and natural (leptospermone) -triketone herbicides and to estimate their ecotoxicological impact on the bacterial community in arable soils. The processes involved in the dissipation of these herbicides (adsorption and biodegradation) have been studied in soil microcosms. Two bacterial strains, Bradyrhizobium sp. SRl able to degrade sulcotrione and mesotrione, and Methylophilus sp. LS1 degrading leptospermone, have been isolated. A bank of 12 ooo mutants of Bradyrhizobium sp…

[SDE] Environmental Scienceseffets des herbicidesbiodégradationsolsbiodegradationécotoxicologie microbiennemicrobial ecotoxicologytriketone herbicides[SDV] Life Sciences [q-bio]herbicidesmétabolites[SDV.BV] Life Sciences [q-bio]/Vegetal Biologymicrobiologieherbicides-tricétonesécotoxicologiemetabolites
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