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Immunocytochemistry of somatotrophs, gonadotrophs, prolactin and adrenocorticotropin cells in larval sea bream (Sparus auratus) pituitaries
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Advisor(s)
Abstract(s)
The chronological appearance of endocrine
cells in the pituitary of sea-bream (Sparus auratus) larvae was studied using antisera against salmon prolactin, trout growth hormone, salmon gonadotropin and Nterminal
human adrenocorticotropin. The larval pituitary (1-12 days after hatching) was oval in shape and was composed of a dense mass of cells with few neurohypophysial
fibres. By 60 days after hatching it began to
resemble the adult and was divisible into a distinct rostral pars distalis containing prolactin and adrenocorticotropin cells; a proximal pars distalis containing somatotrophs and gonadotrophs and a pars intermedia. Cells immunoreactive with antisera against growth hormone were observed immediately after hatching (2 days postfertilization). Weakly staining prolactin cells were observed 2 days later in the region corresponding to the
rostral pars distalis. Cells immunoreactive with antigonadotropin and anti-adrenocorticotropin sera were observed in the pituitary 6 and 8 days after hatching,
respectively. All the cell-types studied were immunoreactire from the time they were first identified until the final samples 90 days after hatching.
Description
Keywords
Growth hormone Sparus auratus (Teleostei) Pituitary gland Immunocytochemistry Adrenocorticotropin Gonadotropin Prolactin
Citation
Power, D. M.; Canario, A. V. M. Immunocytochemistry of somatotrophs, gonadotrophs, prolactin and adrenocorticotropin cells in larval sea bream (Sparus auratus) pituitaries, Cell & Tissue Research, 269, 2, 341-346, 1992.