XB-IMG-137944
Xenbase Image ID: 137944
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Fig. 13. Photomicrographs of neurons labelled from
rostral spinal cord HRP applications. (A) Horizontal
section through midbrain and hindbrain of a normal
Xenopus larva. Ventral midbrain cells and vestibulospinal
neurons are clearly labelled. Some more medial hindbrain
reticulospinal neurons are more faintly labelled.
(B) Horizontal section through midbrain and hindbrain of
a RA-treated Xenopus. Eyes are present at the truncated
anterior midbrain. As in controls, ventral midbrain cells
and vestibulospinal neurons are labelled, but the distance
between these two cell groups is reduced. Some
reticulospinal neurons are also apparent. (C-E)
Transverse sections of RA-treated embryos. (C) TS
through midbrain showing large ventral midbrain
neurons. The ectopically placed otocysts are apparent in this section. (D) TS showing one Mauthner's neuron (arrowed),
and two Mauthner's axons (curved arrow) crossing the ventral floor plate at the level of the rostral vestibulospinal neurons.
(E) TS through vestibulospinal complex, showing its characteristic location dorsolateral to the reticulospinal neurons, vm,
ventral midbrain neurons; vsp, vestibulospinal neurons; rsp, reticulospinal neurons; oto, otocyst. Scale bar is 100 nm. Image published in: Papalopulu N et al. (1991) Copyright © 1991. Image reproduced with permission of the publisher and the copyright holder. This is an Open Access article distributed under the terms of the Creative Commons Attribution License. Larger Image Printer Friendly View |