Environmental influences on prolactin cell development in the cyprinodont fish, Cynolebias whitei

J. M. Ruijter; J. A. van Kemenade; S. E. Wendelaar Bonga

doi:https://doi.org/10.1007/BF00219877

Environmental influences on prolactin cell development in the cyprinodont fish, Cynolebias whitei

J. M. Ruijter, J. A. van Kemenade, S. E. Wendelaar Bonga

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Abstract

A combined immunocytochemical and morphometric study on the development of the prolactin (PRL) cells of the annual cyprinodont Cynolebias whitei, transferred as newly hatched larvae to water with different salinities and/or Ca2+-concentrations, was carried out. The percentage of the pituitary volume occupied by PRL cells and the affinity of PRL cells for immunocytochemical staining were used as criteria for their activity. Exposure of the larvae for one day to salt water (260 mOsm/kg) led to a significant reduction in the pituitary volume occupied by PRL cells, indicating an osmoregulatory function of PRL shortly after hatching. In fish reared in diluted artificial seawater (70 and 260 mOsm/kg) or Na+-enriched fresh water the development of PRL cells was significantly retarded, but such an effect was not observed in fish placed in Ca2+-enriched fresh water. These experiments show that in C. whitei the development and activity of PRL cells are influenced by changes in environmental osmolarity and not by changes in ambient Ca2+-concentration

Original language	English
Pages (from-to)	595-600
Journal	Cell and Tissue Research
Volume	238
Issue number	3
DOIs	https://doi.org/10.1007/BF00219877
Publication status	Published - 1984

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https://doi.org/10.1007/BF00219877

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@article{fbfc29ca0b324dfb91d4391f129b3062,

title = "Environmental influences on prolactin cell development in the cyprinodont fish, Cynolebias whitei",

abstract = "A combined immunocytochemical and morphometric study on the development of the prolactin (PRL) cells of the annual cyprinodont Cynolebias whitei, transferred as newly hatched larvae to water with different salinities and/or Ca2+-concentrations, was carried out. The percentage of the pituitary volume occupied by PRL cells and the affinity of PRL cells for immunocytochemical staining were used as criteria for their activity. Exposure of the larvae for one day to salt water (260 mOsm/kg) led to a significant reduction in the pituitary volume occupied by PRL cells, indicating an osmoregulatory function of PRL shortly after hatching. In fish reared in diluted artificial seawater (70 and 260 mOsm/kg) or Na+-enriched fresh water the development of PRL cells was significantly retarded, but such an effect was not observed in fish placed in Ca2+-enriched fresh water. These experiments show that in C. whitei the development and activity of PRL cells are influenced by changes in environmental osmolarity and not by changes in ambient Ca2+-concentration",

author = "Ruijter, {J. M.} and {van Kemenade}, {J. A.} and {Wendelaar Bonga}, {S. E.}",

year = "1984",

doi = "https://doi.org/10.1007/BF00219877",

language = "English",

volume = "238",

pages = "595--600",

journal = "Cell and Tissue Research",

issn = "0302-766X",

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TY - JOUR

T1 - Environmental influences on prolactin cell development in the cyprinodont fish, Cynolebias whitei

AU - Ruijter, J. M.

AU - van Kemenade, J. A.

AU - Wendelaar Bonga, S. E.

PY - 1984

Y1 - 1984

N2 - A combined immunocytochemical and morphometric study on the development of the prolactin (PRL) cells of the annual cyprinodont Cynolebias whitei, transferred as newly hatched larvae to water with different salinities and/or Ca2+-concentrations, was carried out. The percentage of the pituitary volume occupied by PRL cells and the affinity of PRL cells for immunocytochemical staining were used as criteria for their activity. Exposure of the larvae for one day to salt water (260 mOsm/kg) led to a significant reduction in the pituitary volume occupied by PRL cells, indicating an osmoregulatory function of PRL shortly after hatching. In fish reared in diluted artificial seawater (70 and 260 mOsm/kg) or Na+-enriched fresh water the development of PRL cells was significantly retarded, but such an effect was not observed in fish placed in Ca2+-enriched fresh water. These experiments show that in C. whitei the development and activity of PRL cells are influenced by changes in environmental osmolarity and not by changes in ambient Ca2+-concentration

AB - A combined immunocytochemical and morphometric study on the development of the prolactin (PRL) cells of the annual cyprinodont Cynolebias whitei, transferred as newly hatched larvae to water with different salinities and/or Ca2+-concentrations, was carried out. The percentage of the pituitary volume occupied by PRL cells and the affinity of PRL cells for immunocytochemical staining were used as criteria for their activity. Exposure of the larvae for one day to salt water (260 mOsm/kg) led to a significant reduction in the pituitary volume occupied by PRL cells, indicating an osmoregulatory function of PRL shortly after hatching. In fish reared in diluted artificial seawater (70 and 260 mOsm/kg) or Na+-enriched fresh water the development of PRL cells was significantly retarded, but such an effect was not observed in fish placed in Ca2+-enriched fresh water. These experiments show that in C. whitei the development and activity of PRL cells are influenced by changes in environmental osmolarity and not by changes in ambient Ca2+-concentration

U2 - https://doi.org/10.1007/BF00219877

DO - https://doi.org/10.1007/BF00219877

M3 - Article

C2 - 6395961

SN - 0302-766X

VL - 238

SP - 595

EP - 600

JO - Cell and Tissue Research

JF - Cell and Tissue Research

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ER -