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  • Title: Sacciform cells in the epidermis of the brown trout, Salmo trutta, and the Arctic char, Salvelinus alpinus.
    Author: Pickering AD, Fletcher JM.
    Journal: Cell Tissue Res; 1987 Feb; 247(2):259-65. PubMed ID: 3815480.
    Abstract:
    Sacciform cells containing an acidophilic, proteinaceous secretion, were identified in the epidermis of the brown trout and Arctic char. This cell type increased in number during the chronic stages of infestation by the ectoparasitic flagellate, Ichthyobodo sp., in immature brown trout, and decreased during sexual maturation in male brown trout and char. It is suggested that the salmonid sacciform cell produces a secretion which protects the fish against infestation or damage by skin parasites.
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