Summary
Striking differences in certain cell-types in the pituitary of the eel at different stages of the life-cycle indicate their possible function. One type, suspected of GTH function, was not present in the elver but present in the young adults and vacuolated in older adults just prior to migration; these changes accompany stages in the development of the gonads. Others, characterised as STH and TSH cells behaved in a manner consistent with the view that they are concerned in the regulation of metabolic activity and metamorphosis.
Stainable neurosecretory material was not detected in the tracts leading to the anterior lobes of the pituitary in the elver, but was present in these tracts in the adult.
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Dedicated to Professor W. Bargmann on his 60th birthday.
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Knowles, F., Vollrath, L. Cell types in the pituitary of the eel, Anguilla anguilla L., at different stages in the life-cycle. Z.Zellforsch 69, 474–479 (1966). https://doi.org/10.1007/BF00406297
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DOI: https://doi.org/10.1007/BF00406297