[蜗牛（Helix lucorum L.）消色差视觉的机制：视网膜中光敏感细胞的细胞内研究]

[Mechanisms of achromatic vision in snail Helix lucorum L.: intracellular study of light-sensitive cells in retina].

作者信息

Chernorizov A M, Zimachev M M, Shekhter E D, Garusev A V

出版信息

Zh Vyssh Nerv Deiat Im I P Pavlova. 2007 Jan-Feb;57(1):80-5.

Abstract

Intracellular study of the eye of land snail Helix lucorum L. demonstrated two types of visual cells responding to flashes of white light by slow sustained depolarization (D - type) and by slow sustained hyperpolarization (H - type). Peaks of spectral sensitivity of both types at 465-500 nm coincide with the peak of spectral sensitivity of photopigment 'rhodopsin'. The revealed D- and H - cells in the snail retina are considered as analogous of B- and D - cells, respectively, in the vertebrate visual system.

摘要

对陆地蜗牛亮大蜗牛眼睛的细胞内研究表明，有两种视觉细胞，一种通过缓慢持续去极化（D型）对白光闪烁做出反应，另一种通过缓慢持续超极化（H型）做出反应。两种类型细胞的光谱敏感性峰值在465 - 500纳米处，与光色素“视紫红质”的光谱敏感性峰值一致。蜗牛视网膜中发现的D细胞和H细胞分别被认为类似于脊椎动物视觉系统中的B细胞和D细胞。