Histochemistry and the structure of the epidermis of a fresh-water teleost Noemacheilus botia (Hamilton-Buchanon) (Cobitidae, Pisces) |
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Authors: | T K Banerjee A K Mittal |
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Abstract: | Functional organization and the histochemical nature of the various cellular components of the epidermis of Noemacheilus botia are described. The various histochemical techniques reveal the basic proteinaccous nature of the outer free margins of the polygonal cells of the most superficial layer of the epidermis. These cells remain metabolically active as revealed by their healthy nuclei and are not sloughed off at the surface. the lateral cell membranes of these cells are fused together forming a continuous barrier which plays important role in water proofing the skin. In addition the polygonal cells in the most superficial layer also undergo the process of mucogenesis synthesizing sulphated acid mucopolysaccharides which may ultimately form a part of the contents of the protective extracellular cuticular coat. |
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