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Sensory physiology, anatomy and immunohistochemistry of Rohon-Beard neurones in embryos of Xenopus laevis.
Clarke JD
,
Hayes BP
,
Hunt SP
,
Roberts A
.
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Rohon-Beard neurones show substance P-like immunoactivity in their somas and in their centrally projecting axons. Peripherally, the morphology of their free nerve endings within the trunk skin has been shown using horseradish peroxidase staining. The excitation of Rohon-Beard neurones by natural and electrical stimulation of the skin has been examined using intracellular micro-electrodes in the late embryo of Xenopus laevis. Rohon-Beard cells are sensitive to transient, local indentation of the trunk skin, responding with one or a few impulses. They adapt rapidly to repeated stimulation. They can also be excited by a brief current pulse to the skin. They are not sensitive to slow indentation of the skin, nor are they excited by epithelial action potentials. The responses to skin stimulation are not abolished by a Ringer solution containing 12 mM-Mg2+ and only 0.5 mM-Ca2+. Intracellularly evoked action potentials in single Rohon-Beard cells are sometimes sufficient to evoke sustained episodes of fictive swimming. The results indicate that Rohon-Beard cells are responsible for detecting light touch stimuli to the embryo's body and for initiating swimming in response to this stimulus.
Barber,
The origin, distribution and synaptic relationships of substance P axons in rat spinal cord.
1979, Pubmed
Barber,
The origin, distribution and synaptic relationships of substance P axons in rat spinal cord.
1979,
Pubmed
Bixby,
The appearance and development of chemosensitivity in Rohon-Beard neurones of the Xenopus spinal cord.
1982,
Pubmed
,
Xenbase
Buchanan,
Activities of identified interneurons, motoneurons, and muscle fibers during fictive swimming in the lamprey and effects of reticulospinal and dorsal cell stimulation.
1982,
Pubmed
Chan-Palay,
Ultrastructural identification of substance P cells and their processes in rat sensory ganglia and their terminals in the spinal cord by immunocytochemistry.
1977,
Pubmed
Cuello,
The distribution of substance P immunoreactive fibers in the rat central nervous system.
1978,
Pubmed
HUGHES,
The development of the primary sensory system in Xenopus laevis (Daudin).
1957,
Pubmed
,
Xenbase
Hayes,
The anatomy of two functional types of mechanoreceptive 'free' nerve-ending in the head skin of Xenopus embryos.
1983,
Pubmed
,
Xenbase
Hunt,
An immunohistochemical study of neuronal populations containing neuropeptides or gamma-aminobutyrate within the superficial layers of the rat dorsal horn.
1981,
Pubmed
Inagaki,
Regional distribution of substance P-like immunoreactivity in the frog brain and spinal cord: immunohistochemical analysis.
1981,
Pubmed
Kahn,
The central nervous origin of the swimming motor pattern in embryos of Xenopus laevis.
1982,
Pubmed
,
Xenbase
Lamborghini,
Rohon-beard cells and other large neurons in Xenopus embryos originate during gastrulation.
1980,
Pubmed
,
Xenbase
Ljungdahl,
Distribution of substance P-like immunoreactivity in the central nervous system of the rat--I. Cell bodies and nerve terminals.
1978,
Pubmed
Lorez,
Substance P-, met-enkephalin- and somatostatin-like immunoreactivity distribution in the frog spinal cord.
1981,
Pubmed
Martin,
Sensory cells in the spinal cord of the sea lamprey.
1971,
Pubmed
Nicholls,
Specific modalities and receptive fields of sensory neurons in CNS of the leech.
1968,
Pubmed
Ogden,
The jet stream microbeveler: an inexpensive way to bevel ultrafine glass micropipettes.
1978,
Pubmed
Ritchie,
Immunohistochemical studies on the distribution and origin of candidate peptidergic primary afferent neurotransmitters in the spinal cord of an elasmobranch fish, the Atlantic stingray (Dasyatis sabina).
1983,
Pubmed
Roberts,
Neuronal growth cones in an amphibian embryo.
1976,
Pubmed
,
Xenbase
Roberts,
The anatomy and function of 'free' nerve endings in an amphibian skin sensory system.
1977,
Pubmed
,
Xenbase
Roberts,
The neuroanatomy of an amphibian embryo spinal cord.
1982,
Pubmed
,
Xenbase
Sato,
The genesis and transmission of epidermal potentials in an amphibian embryo.
1981,
Pubmed
,
Xenbase
Spitzer,
The ionic basis of the resting potential and a slow depolarizing response in Rohon-Beard neurones of Xenopus tadpoles.
1976,
Pubmed
,
Xenbase
Spitzer,
Development of the action potential in embryo amphibian neurons in vivo.
1976,
Pubmed
,
Xenbase
Spitzer,
Voltage- and stage-dependent uncoupling of Rohon-Beard neurones during embryonic development of Xenopus tadpoles.
1982,
Pubmed
,
Xenbase
Teräväinen,
Electrical activity of myotomal muscle fibers, motoneurons, and sensory dorsal cells during spinal reflexes in lampreys.
1971,
Pubmed
