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Immunocytochemical identification of prolactin cells in the pituitary gland of tilapia larvae (Oreochromis mossambicus: Teleostei)

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Summary

Using an antiserum to highly purified chum salmon prolactin, prolactin cells were identified in the putative rostral pars distalis of newly hatched tilapia larvae (Oreochromis mossambicus) by the immunogold method for the electron microscope. In the putative rostral pars distalis, some cells had another kind of secretory granule which was much less numerous, much smaller in size, and without immunoreactivity to salmon prolactin antiserum. Controls incubated with salmon prolactin-preabsorbed antiserum or normal serum showed no immunoreactive cells, confirming the specificity of the antiserum. The possible role of prolactin in the osmoregulation of tilapia larvae is discussed.

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Authors and Affiliations

  1. Institute of Zoology, Academia Sinica, Taipei, Taiwan, Republic of China

    Pung Pung Hwang

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  1. Pung Pung Hwang
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Hwang, P.P. Immunocytochemical identification of prolactin cells in the pituitary gland of tilapia larvae (Oreochromis mossambicus: Teleostei). Cell Tissue Res 260, 203–205 (1990). https://doi.org/10.1007/BF00297506

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  • DOI: https://doi.org/10.1007/BF00297506

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