长时间的明适应和暗适应对成年绿螈晶状体再生的影响。

The effect of prolonged light and dark adaptation on lens regeneration in the adult newt Triturus viridescens.

作者信息

Chan F, McCarthy J

出版信息

Growth. 1980 Mar;44(1):12-8.

Abstract

Light intensity has been shown to affect lens regeneration in adult newts. Experiments were designed to study the effects of different light controlled environments on lens regeneration in the newt T, viridescens. Animals were preadapted to three light conditions: control, light from below and dark for ninety (90) days prior to lentectomy. The newts remained in the controlled environments post-lentectomy to test the effects of light preadaptation on lens regeneration. The results indicate that controlled light sources from below cannot stimulate the ventral iris to regenerate a new lens or inhibit the dorsal iris from normal lens regeneration. Lens regeneration in preadapted dark animals is similar in rate and amount to the control group indicating a totally dark environment does not always inhibit lens regeneration.

摘要

已有研究表明，光照强度会影响成年蝾螈晶状体的再生。实验旨在研究不同光照控制环境对绿纹钝口螈晶状体再生的影响。在摘除晶状体前，将动物预先适应三种光照条件：对照、底部光照和黑暗环境，为期九十（90）天。摘除晶状体后，蝾螈仍处于这些控制环境中，以测试光照预适应对晶状体再生的影响。结果表明，来自下方的受控光源既不能刺激腹侧虹膜再生新的晶状体，也不能抑制背侧虹膜的正常晶状体再生。预先适应黑暗环境的动物的晶状体再生速度和数量与对照组相似，这表明完全黑暗的环境并不总是抑制晶状体再生。