title: [Fucosterol-24,28-epoxide, an intermediate in the oxidative biodegredation of fucosterol to cholesterol by the cricket (Locusta migratoria (R. and F.)].
abstract: beta-Sitosterol 1 is metabolised to cholesterol 5 by phytophagous insects. It has been previously shown that fucosterol-24,28 epoxide 3 is transformed into 5 in Locusta migratoria, desmosterol 4 being an intermediate. It is now established that locusts transform [3-3H]fucosterol propionate into the corresponding labelled epoxide 3, recovered as such or as an oxazoline derivative 11.
mesh_terms: D000818:Animals; D002784:Cholesterol / Q000096:biosynthesis*; D004852:Epoxy Compounds; D006110:Grasshoppers / Q000378:metabolism*; D012855:Sitosterols / Q000378:metabolism; D013261:Sterols / Q000378:metabolism*
chemical_list: D004852:Epoxy Compounds; D012855:Sitosterols; D013261:Sterols; D002784:Cholesterol
vernacular_title: Le fucostérol-24,28 époxyde, intermediaire dans la biodégradation oxydative du fucostérol en cholestérol par le criquet Locusta migratoria (R. et F.).