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Presumed dopaminergic neurons were visualized in the retina of the clawed frog, Xenopus laevis, by anti-tyrosine hydroxylase (TH) immunoreactivity. The studied cells constitute a uniform population with perikarya at the junction of inner nuclear (INL) and inner plexiform (IPL) layers. Each cell body gives rise to 4-6 relatively stout processes (0.5-2.0 microns in diameter) which run for up to 1.2 mm in strata 4-5 of the IPL. These processes have a very asymmetric distribution in the horizontal plane of the retina. A dense plexus of TH fine fibers is distributed uniformly in stratum 1 of the IPL. TH cells are distributed evenly but sparsely (16-20 cells/mm2) across the retina. About 20% of the TH neurons emit 1-3 distally directed fine processes, the majority of which extend < 20 microns, which barely suffices to reach the outer plexiform layer (OPL). Other longer processes are typically unbranched; some reach the OPL, others run tangentially in the INL. The axon terminals of Golgi-impregnated bipolar cells are characterized according to the strata of the IPL in which they arborize. About 80% are confined either to strata 1-2 or 3-5, conforming to the 'off' and 'on' zones defined by Famiglietti and Kolb (1976). The remainder appear to end in both zones, some extending across the entire width of the IPL. EM examination showed that TH processes receive bipolar synaptic input in both distal and proximal portions of the IPL.
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Besharse,
The "ON"-bipolar agonist, L-2-amino-4-phosphonobutyrate, blocks light-evoked cone contraction in xenopus eye cups.
1992, Pubmed,
Xenbase
Besharse,
The "ON"-bipolar agonist, L-2-amino-4-phosphonobutyrate, blocks light-evoked cone contraction in xenopus eye cups.
1992,
Pubmed
,
Xenbase
Besharse,
Light-evoked contraction of red absorbing cones in the Xenopus retina is maximally sensitive to green light.
1992,
Pubmed
,
Xenbase
Boatright,
Stimulation of endogenous dopamine release and metabolism in amphibian retina by light- and K+-evoked depolarization.
1989,
Pubmed
,
Xenbase
Boycott,
The morphological types of ganglion cells of the domestic cat's retina.
1974,
Pubmed
Brecha,
Identification and characterization of tyrosine hydroxylase immunoreactive amacrine cells.
1984,
Pubmed
Critz,
Glutamate antagonists that block hyperpolarizing bipolar cells increase the release of dopamine from turtle retina.
1992,
Pubmed
Dearry,
Dopamine induces light-adaptive retinomotor movements in bullfrog cones via D2 receptors and in retinal pigment epithelium via D1 receptors.
1990,
Pubmed
Djamgoz,
Localization and function of dopamine in the adult vertebrate retina.
1992,
Pubmed
Dong,
The relationship between light, dopamine release and horizontal cell coupling in the mudpuppy retina.
1991,
Pubmed
Dowling,
The interplexiform cell system. I. Synapses of the dopaminergic neurons of the goldfish retina.
1978,
Pubmed
Dowling,
Synaptic organization of the amine-containing interplexiform cells of the goldfish and Cebus monkey retinas.
1975,
Pubmed
Ehinger,
Neurotransmitter systems in the retina.
1982,
Pubmed
Ehinger,
Adrenergic neurons in teleost retina.
1969,
Pubmed
Famiglietti,
Structural basis for ON-and OFF-center responses in retinal ganglion cells.
1976,
Pubmed
Gábriel,
Tyrosine hydroxylase-immunoreactive elements in the distal retina of Bufo marinus: a light and electron microscopic study.
1991,
Pubmed
Greferath,
Rod bipolar cells in the mammalian retina show protein kinase C-like immunoreactivity.
1990,
Pubmed
HAEGGENDAL,
IDENTIFICATION AND CELLULAR LOCALIZATION OF THE CATECHOLAMINES IN THE RETINA AND THE CHOROID OF THE RABBIT.
1965,
Pubmed
Hanani,
Rod and cone signals in the horizontal cells of the tiger salamander retina.
1980,
Pubmed
Hare,
Morphology of physiologically identified bipolar cells in the retina of the tiger salamander, Ambystoma tigrinum.
1986,
Pubmed
Hokoç,
Synapses from bipolar cells onto dopaminergic amacrine cells in cat and rabbit retinas.
1988,
Pubmed
Kolb,
The synaptic organization of the dopaminergic amacrine cell in the cat retina.
1990,
Pubmed
Kolb,
Distribution and morphology of dopaminergic amacrine cells in the retina of the turtle (Pseudemys scripta elegans).
1987,
Pubmed
Lasansky,
Organization of the outer synaptic layer in the retina of the larval tiger salamander.
1973,
Pubmed
Muresan,
D2-like dopamine receptors in amphibian retina: localization with fluorescent ligands.
1993,
Pubmed
,
Xenbase
Negishi,
Dopamine cells and rod bipolar cells contain protein kinase C-like immunoreactivity in some vertebrate retinas.
1988,
Pubmed
Nguyen-Legros,
Sclerally directed processes of dopaminergic interplexiform cells reach the outer nuclear layer in rat and monkey retina.
1990,
Pubmed
Nguyen-Legros,
Tyrosine hydroxylase immunohistochemistry fails to demonstrate dopaminergic interplexiform cells in the turtle retina.
1985,
Pubmed
Oyster,
Morphology and distribution of tyrosine hydroxylase-like immunoreactive neurons in the cat retina.
1985,
Pubmed
Piccolino,
Decrease of gap junction permeability induced by dopamine and cyclic adenosine 3':5'-monophosphate in horizontal cells of turtle retina.
1984,
Pubmed
Pierce,
Circadian regulation of retinomotor movements. I. Interaction of melatonin and dopamine in the control of cone length.
1985,
Pubmed
,
Xenbase
Pollard,
Synaptic analysis of amacrine cells in the turtle retina which contain tyrosine hydroxylase-like immunoreactivity.
1990,
Pubmed
Schütte,
Dopaminergic interplexiform cells and centrifugal fibres in the Xenopus retina.
1991,
Pubmed
,
Xenbase
Schütte,
Serotonin-like immunoreactivity in the retina of the clawed frog Xenopus laevis.
1990,
Pubmed
,
Xenbase
Slaughter,
2-amino-4-phosphonobutyric acid: a new pharmacological tool for retina research.
1981,
Pubmed
Stell,
Retinal structure in the smooth dogfish, Mustelus canis: general description and light microscopy of giant ganglion cells.
1973,
Pubmed
Stone,
Physiological and morphological properties of off- and on-center bipolar cells in the Xenopus retina: effects of glycine and GABA.
1991,
Pubmed
,
Xenbase
Törk,
Morphology of catecholamine-containing amacrine cells in the cat's retina, as seen in retinal whole mounts.
1979,
Pubmed
Van Haesendonck,
New aspects of dopaminergic interplexiform cell organization in the goldfish retina.
1993,
Pubmed
Voigt,
Dopaminergic innervation of A II amacrine cells in mammalian retina.
1987,
Pubmed
Wagner,
Microanatomy of the dopaminergic system in the rainbow trout retina.
1993,
Pubmed
Watt,
Synaptic organization of dopaminergic amacrine cells in the larval tiger salamander retina.
1993,
Pubmed
Watt,
Localization of tyrosine-hydroxylase-like-immunoreactive amacrine cells in the larval tiger salamander retina.
1988,
Pubmed
Witkovsky,
Extracellular dopamine concentration in the retina of the clawed frog, Xenopus laevis.
1993,
Pubmed
,
Xenbase
Witkovsky,
Catecholamine- and indoleamine-containing neurons in the turtle retina.
1984,
Pubmed
Witkovsky,
Morphology and synaptic connections of HRP-filled, axon-bearing horizontal cells in the Xenopus retina.
1988,
Pubmed
,
Xenbase
Yazulla,
Synaptic organization of dopaminergic interplexiform cells in the goldfish retina.
1988,
Pubmed
Zhu,
Dendritic morphology and retinal distribution of tyrosine hydroxylase-like immunoreactive amacrine cells in Bufo marinus.
1990,
Pubmed
