Developmental patterns of peroxisomal enzymes in amphibian liver during spontaneous and triiodothyronine-induced metamorphosis.
1. Liver catalase, D-amino acid oxidase, urate oxidase of Alytes obstetricans and Xenopus laevis (anuran amphibians) and fatty acyl-CoA oxidase of Alytes were present at all post-embryonic stages. 2. Catalase and D-amino acid oxidase activities increased during spontaneous metamorphosis of the two species. 3. During triiodothyronine-induced metamorphosis of Alytes larvae, catalase and D-amino acid oxidase activities increased after a latent period. 4. Our results suggest that expression of some hepatic peroxisomal enzymes is modulated by thyroid hormones.
Ciolek
E
E
Laboratoire de Biologie Cellulaire du Développement, Faculté des Sciences, Université de Nancy I, France.
Vamecq
J
J
Van Hoof
F
F
Dauça
M
M
Bautz
A
A
D000818:Animals; D001001:Anura / Q000254:growth & development* / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D007814:Larva / Q000201:enzymology; D008099:Liver / Q000201:enzymology / Q000648:ultrastructure*; D008675:Metamorphosis, Biological / Q000187:drug effects*; D008830:Microbodies / Q000201:enzymology*; D011394:Proline Oxidase / Q000378:metabolism; D014284:Triiodothyronine / Q000494:pharmacology*; D014503:Urate Oxidase / Q000378:metabolism; D014982:Xenopus laevis / Q000254:growth & development* / Q000378:metabolism
D014284:Triiodothyronine; D002374:Catalase; D011394:Proline Oxidase; D014503:Urate Oxidase