光和传出活动控制鲎感光细胞中的视杆更新。

Light and efferent activity control rhabdom turnover in Limulus photoreceptors.

作者信息

Chamberlain S C, Barlow R B

出版信息

Science. 1979 Oct 19;206(4416):361-3. doi: 10.1126/science.482946.

Abstract

Photosensitive membrane structures in the retinular cells of the Limulus lateral eye are broken down and renewed daily. The first light onset causes a rapid, synchronous disassembly and buildup of the rhabdom in each photoreceptor cell. The entire process is complete within 30 minutes. Blocking the efferent input to the retina from the brain blocks the turnover of the rhabdom, and mimicking the efferent input by optic nerve stimulation restores it.

摘要

鲎侧眼小眼细胞中的光敏膜结构每天都会分解并更新。首次光照开始会导致每个感光细胞中的视杆迅速、同步地分解和重建。整个过程在30分钟内完成。阻断从大脑到视网膜的传出输入会阻断视杆的更新，而通过视神经刺激模拟传出输入则可恢复视杆的更新。