Influence of 3,3′,5′-triiodo-L-thyronine on the involution of the cement gland ofXenopus laevis (Daudin) in vivo and in vitro

✍ Scribed by Weets, J. ;Picard, J. J.

• Publisher: John Wiley and Sons
• Year: 1979
• Tongue: English
• Weight: 597 KB
• Volume: 207
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1402070213

✦ Synopsis

Abstract

The cement gland of Xenopus laevis appears at stage 15. It increases rapidly in volume and reaches its maximum size five days after fertilization at 18° The growth is followed by involution and the gland eventually disappears at stage 50. The evolution of explanted glands cultured in vitro is similar to the evolution observed in vivo. The involution of explanted glands cultured in Barth solution suggests that the initiation of the involution is independent of hormonal control. However, 3,3′,5′‐triiodo‐L‐thronine increases the rate of the involution in vivo as well as in vitro and this rate is a function of the concentration of the hormone.