Biosynthesis of ascorbic acid in chick embryos.
Biosynthesis of ascorbic acid was found in the kidneys (mesonephros and metanephros) of the chick embryo as well as in the yolk sac membrane. The activity of L-gulonolactone oxidase in the yolk sac membrane suggested that it was the major source of ascorbic acid in the chick embryo.
D000367:Age Factors; D000818:Animals; D001205:Ascorbic Acid / Q000378:metabolism*; D002642:Chick Embryo / Q000378:metabolism*; D007668:Kidney / Q000196:embryology / Q000378:metabolism; D050544:L-Gulonolactone Oxidase; D008099:Liver / Q000196:embryology / Q000378:metabolism; D013401:Sugar Alcohol Dehydrogenases / Q000378:metabolism; D015017:Yolk Sac / Q000378:metabolism
D013401:Sugar Alcohol Dehydrogenases; D050544:L-Gulonolactone Oxidase; D001205:Ascorbic Acid