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KMID : 0364219900330010012
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Korean Journal of Zoology
1990 Volume.33 No. 1 p.12 ~ p.21
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Light, Scanning and Transmission Electron Microscopic Studies on the Structure of the Pigment Cells of the Pisces
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Chi Young-Duk
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Abstract
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When a piece of the dorsal skin(cat fish) was observed under a light microscope, melanophores were horizontally expanded and had a few processes filled with melanosomes. They were isolated from one another. Some melanophores looked black, while others were d&k brown. On observation with a transmission electron microscope, the epidermal melanophore of cat fish was highly branched and small segments of processes were found frequendy m the vidnity of the interecellular spaces. The cross section of the processes of melanophore was almost circular, and often invested by a thin layer of epidermal cells. Some processes, however, occurred free m the wide interecellular spaces or at the cytoplasm of the superilcial layers. In the mature melanophore, the cell organelles including melanosomes, mitochondria and free ribosomes were prominent in the perinuclear portions. Many melanosomes were spherical or elipsoidal in shape. Each melanosomes was surrounded by a limiting membrane. The processes of the mature melanophore were well developed, but the processes of the immature melanophores were incompletely developed.
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KEYWORD
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Chromatophore , Melanophore , Melanosome , The processes of melanophore
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