Katz M J, Lasek R J
Science. 1978 Jan 13;199(4325):202-4. doi: 10.1126/science.619452.
Axons from eyes transplanted to the tail in Xenopus larvae enter the caudal spinal cord and follow two adjacent tracts rostrally to the level of the cerebellum. When eyes are transplanted to the ear area, optic axons enter the hindbrain and follow the same tracts rostrally and caudally. These sensory pathways normally contain the embryonic sensory system of the Rohon-Beard axons and the descending and ascending tracts of nerve V. We propose that the transplanted optic axons have followed a continuous substrate sensory pathway normally shared by a number of different sensory tracts.
移植到非洲爪蟾幼体尾巴上的眼睛发出的轴突进入尾脊髓,并沿着两条相邻的束向吻侧延伸至小脑水平。当眼睛移植到耳部区域时,视神经轴突进入后脑,并在吻侧和尾侧沿着相同的束延伸。这些感觉通路通常包含罗霍恩-比尔兹轴突的胚胎感觉系统以及神经V的下行和上行束。我们提出,移植的视神经轴突遵循了一条连续的底物感觉通路,该通路通常由许多不同的感觉束共享。