The topography and morphology of retinal ganglion cells in the coral trout Plectropoma leopardus (Serranidae): A retrograde cobaltous-lysine study

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    Abstract

    The retinal topography of the adult coral trout Plectropoma leopardus (Serranidae, Perciformes) is examined in Nissl‐stained material and confirmed by means of retrograde labelling with cobalt‐lysine from the optic nerve. Concentric isodensity contours surround a temporoventral area centralis of over 1.5 × 104 cells per mm2 which lies ventral of the elongated optic nerve head. Peripheral densities of ganglion cells fall to less than 0.25 × 104 cells per mm2. A total of 1.17 × 105 ganglion cells is found over the entire retina. Silver intensifications of cobalt‐lysine‐stained cells allow a detailed analysis of ganglion cell morphology. Soma and dendritic field size increase with eccentricity, and within the confines of the area centralis only the smallest cell size is found. Dendritic arbors of peripheral ganglion cells are all oriented parallel to the retinal margin with an axon lying close to the vitreous humor. Nine classes of cells are characterized on the criteria of soma size, dendritic field size, primary and secondary branching patterns, soma position, and dendritic termination areas. Possible morphological homologies with ganglion cells of other teleosts are also discussed.
    Original languageEnglish
    Pages (from-to)143-158
    Number of pages15
    JournalThe Journal of Comparative Neurology
    Volume281
    Issue number1
    DOIs
    Publication statusPublished - 1 Mar 1989

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    Bass
    Anthozoa
    Retinal Ganglion Cells
    Trout
    Lysine
    Ganglia
    Carisoprodol
    Perciformes
    Vitreous Body
    Optic Disk
    Optic Nerve
    Cell Size
    Silver
    Axons
    Retina
    Cell Count

    Cite this

    @article{69756a1e969d47b19a0d9cf07d995b53,
    title = "The topography and morphology of retinal ganglion cells in the coral trout Plectropoma leopardus (Serranidae): A retrograde cobaltous-lysine study",
    abstract = "The retinal topography of the adult coral trout Plectropoma leopardus (Serranidae, Perciformes) is examined in Nissl‐stained material and confirmed by means of retrograde labelling with cobalt‐lysine from the optic nerve. Concentric isodensity contours surround a temporoventral area centralis of over 1.5 × 104 cells per mm2 which lies ventral of the elongated optic nerve head. Peripheral densities of ganglion cells fall to less than 0.25 × 104 cells per mm2. A total of 1.17 × 105 ganglion cells is found over the entire retina. Silver intensifications of cobalt‐lysine‐stained cells allow a detailed analysis of ganglion cell morphology. Soma and dendritic field size increase with eccentricity, and within the confines of the area centralis only the smallest cell size is found. Dendritic arbors of peripheral ganglion cells are all oriented parallel to the retinal margin with an axon lying close to the vitreous humor. Nine classes of cells are characterized on the criteria of soma size, dendritic field size, primary and secondary branching patterns, soma position, and dendritic termination areas. Possible morphological homologies with ganglion cells of other teleosts are also discussed.",
    author = "Collin, {Shaun Patrick}",
    year = "1989",
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    doi = "10.1002/cne.902810112",
    language = "English",
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    TY - JOUR

    T1 - The topography and morphology of retinal ganglion cells in the coral trout Plectropoma leopardus (Serranidae): A retrograde cobaltous-lysine study

    AU - Collin, Shaun Patrick

    PY - 1989/3/1

    Y1 - 1989/3/1

    N2 - The retinal topography of the adult coral trout Plectropoma leopardus (Serranidae, Perciformes) is examined in Nissl‐stained material and confirmed by means of retrograde labelling with cobalt‐lysine from the optic nerve. Concentric isodensity contours surround a temporoventral area centralis of over 1.5 × 104 cells per mm2 which lies ventral of the elongated optic nerve head. Peripheral densities of ganglion cells fall to less than 0.25 × 104 cells per mm2. A total of 1.17 × 105 ganglion cells is found over the entire retina. Silver intensifications of cobalt‐lysine‐stained cells allow a detailed analysis of ganglion cell morphology. Soma and dendritic field size increase with eccentricity, and within the confines of the area centralis only the smallest cell size is found. Dendritic arbors of peripheral ganglion cells are all oriented parallel to the retinal margin with an axon lying close to the vitreous humor. Nine classes of cells are characterized on the criteria of soma size, dendritic field size, primary and secondary branching patterns, soma position, and dendritic termination areas. Possible morphological homologies with ganglion cells of other teleosts are also discussed.

    AB - The retinal topography of the adult coral trout Plectropoma leopardus (Serranidae, Perciformes) is examined in Nissl‐stained material and confirmed by means of retrograde labelling with cobalt‐lysine from the optic nerve. Concentric isodensity contours surround a temporoventral area centralis of over 1.5 × 104 cells per mm2 which lies ventral of the elongated optic nerve head. Peripheral densities of ganglion cells fall to less than 0.25 × 104 cells per mm2. A total of 1.17 × 105 ganglion cells is found over the entire retina. Silver intensifications of cobalt‐lysine‐stained cells allow a detailed analysis of ganglion cell morphology. Soma and dendritic field size increase with eccentricity, and within the confines of the area centralis only the smallest cell size is found. Dendritic arbors of peripheral ganglion cells are all oriented parallel to the retinal margin with an axon lying close to the vitreous humor. Nine classes of cells are characterized on the criteria of soma size, dendritic field size, primary and secondary branching patterns, soma position, and dendritic termination areas. Possible morphological homologies with ganglion cells of other teleosts are also discussed.

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    DO - 10.1002/cne.902810112

    M3 - Article

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    EP - 158

    JO - The Journal of Comparative Neurology

    JF - The Journal of Comparative Neurology

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