DioscoreaPregnenolonePachyrhizusPregnenolone CarbonitrileFood StorageLiliaceaeYin Deficiency17-alpha-HydroxypregnenoloneCholesterol Side-Chain Cleavage EnzymePlant TubersDehydroepiandrosteronePregnanoloneDiosgeninPregnanesAnimals, WildPregnenesSteroidsProgesterone Reductase3-Hydroxysteroid DehydrogenasesProgesteroneChitinaseHydroxysteroidsBeninAdrenal CortexSteroid 17-alpha-Hydroxylase