Premium
Hypophysectomy and Growth in the Axolotl, Amblystoma tigrinum (Green), Neotenic Form
Author(s) -
Howes N. H.
Publication year - 1939
Publication title -
proceedings of the zoological society of london
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0370-2774
DOI - 10.1111/j.1096-3642.1939.tb00044.x
Subject(s) - hypophysectomy , axolotl , biology , endocrinology , xenopus , medicine , metamorphosis , body weight , lithobates , larva , regeneration (biology) , microbiology and biotechnology , ecology , bullfrog , genetics , hormone , gene
SUMMARY.1 Hypophysectomy has little or no effect upon growth in neotenous Amblystoma tigrinum.2 Regression of the gonads appears to be compensated at least partly by increase in size of the fat‐body and possibly also by slightly accelerated growth of the remainder of the body. 3 The ratio food intake/weight gained is unaltered by hypophysectomy in young actively‐growing axolotls, and slightly but not significantly raised in sexually mature larvæ. 4 Following the operation the behaviour of the gonads is exactly like that already described by Burns and Buyse (1931) for this species. This closely resembles their behaviour in Xenopus lævis (Bellerby and Hogben, 1938).