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The development of the oculomotor nucleus in five species of salamanders and one anuran species was investigated with tracing techniques. The data presented support the hypothesis that oculomotor motoneurons innervating the superior rectus muscle migrate across the midline. In the salamander Pleurodeles waltl, only ipsilateral oculomotor motoneurons are labeled in early development. Later, these neurons extend dendrites toward the contralateral side into the ventral tegmental neuropil, after which there is displacement of their nuclei (neuronal somata) across the midline. Cell bodies can be observed directly at the midline. In adult Salamandra salamandra, motoneurons innervating the superior rectus muscle are seen occasionally at the midline and on the ipsilateral side, with dendrites toward the contralateral side. Motoneurons on the ipsilateral side do not display these features. In Pleurodeles, developmental brain processes are slowed down, and the sequence of development of the contralateral subnucleus, which can be clearly observed, supports the migration hypothesis. In Xenopus laevis and most other species of salamanders this process is accelerated.
Adams,
Technical considerations on the use of horseradish peroxidase as a neuronal marker.
1977, Pubmed
Adams,
Technical considerations on the use of horseradish peroxidase as a neuronal marker.
1977,
Pubmed Adams,
Heavy metal intensification of DAB-based HRP reaction product.
1981,
Pubmed Akagi,
The localization of the motor neurons innervating the extraocular muscles in the oculomotor nuclei of the cat and rabbit, using horseradish peroxidase.
1978,
Pubmed Barbas-Henry,
The motor nuclei and sensory neurons of the IIIrd, IVth, and VIth cranial nerves in the monitor lizard, Varanus exanthematicus.
1988,
Pubmed Bourrat,
Migratory pathways and neuritic differentiation of inferior olivary neurons in the rat embryo. Axonal tracing study using the in vitro slab technique.
1988,
Pubmed Domesick,
Migration and differentiation of ganglion cells in the optic tectum of the chick embryo.
1977,
Pubmed Fritzsch,
Organization of the six motor nuclei innervating the ocular muscles in lamprey.
1990,
Pubmed Fritzsch,
Retinal projections in European Salamandridae.
1980,
Pubmed Glicksman,
Localization of motoneurons controlling the extraocular muscles of the rat.
1980,
Pubmed Glücksohn,
[Not Available].
1931,
Pubmed Graf,
Elasmobranch oculomotor organization: anatomical and theoretical aspects of the phylogenetic development of vestibulo-oculomotor connectivity.
1984,
Pubmed Hanker,
A new specific, sensitive and non-carcinogenic reagent for the demonstration of horseradish peroxidase.
1977,
Pubmed Heaton,
Peripheral innervation by migrating neuroblasts in the chick embryo.
1978,
Pubmed Heaton,
Patterns of extraocular innervation by the oculomotor complex in the chick.
1983,
Pubmed Heaton,
The development of the oculomotor nuclear complex in the Japanese quail embryo.
1981,
Pubmed Hogg,
Observations of the development of the nucleus of Edinger-Westphal in man and the albino rat.
1966,
Pubmed Luiten,
Extraocular muscle representation in the brainstem of the carp.
1978,
Pubmed Malmgren,
A sensitive method for histochemical demonstration of horseradish peroxidase in neurons following retrograde axonal transport.
1978,
Pubmed Matesz,
Development of the oculomotor and trochlear nuclei in the Xenopus toad.
1990,
Pubmed
,
Xenbase Matesz,
The dorsomedial nuclear group of cranial nerves in the frog.
1977,
Pubmed Mesulam,
Additional factors influencing sensitivity in the tetramethyl benzidine method for horseradish peroxidase neurohistochemistry.
1980,
Pubmed Mesulam,
Tetramethyl benzidine for horseradish peroxidase neurohistochemistry: a non-carcinogenic blue reaction product with superior sensitivity for visualizing neural afferents and efferents.
1978,
Pubmed Montgomery,
The pretectal nucleus lentiformis mesencephali of Rana pipiens.
1985,
Pubmed Naujoks-Manteuffel,
Localization of motoneurons innervating the extraocular muscles in Salamandra salamandra L. (Amphibia, Urodela).
1986,
Pubmed Porter,
Innervation of monkey extraocular muscles: localization of sensory and motor neurons by retrograde transport of horseradish peroxidase.
1983,
Pubmed Puelles,
A Golgi-study of oculomotor neuroblasts migrating across the midline in chick embryos.
1978,
Pubmed Puelles,
Do oculomotor neuroblasts migrate across the midline in the retal rat brain?
1977,
Pubmed Pu elles-Lobez,
The migration of oculomotor neuroblasts across the midline in the chick embryo.
1975,
Pubmed Rakic,
Mode of cell migration to the superficial layers of fetal monkey neocortex.
1972,
Pubmed Rettig,
Development of retinofugal neuropil areas in the brain of the alpine newt, Triturus alpestris.
1981,
Pubmed Rosiles,
The organization of the extraocular motor nuclei in the Atlantic stingray, Dasyatis sabina.
1980,
Pubmed Schönenberger,
Axon number in oculomotor nerves in Xenopus: removal of one eye primordium affects both sides.
1983,
Pubmed
,
Xenbase Sidman,
Neuronal migration, with special reference to developing human brain: a review.
1973,
Pubmed Sohal,
Development of the oculomotor nucleus, with special reference to the time of cell origin and cell death.
1977,
Pubmed Sonntag,
The development of the amphibian trochlear nucleus. An HRP study.
1987,
Pubmed
,
Xenbase Wilm,
Development of tectal neurons in the perciform teleost Haplochromis burtoni. A Golgi study.
1989,
Pubmed
