Pituitary gland morphogenesis and ontogeny of adenohypophyseal cells of Salminus brasiliensis (Teleostei, Characiformes)

In this study, we describe for the first time the details of the pituitary gland morphogenesis and the ontogeny of adenohypophyseal cells of a South American Characiform species with great importance for Brazilian Aquaculture, Salminus brasiliensis (Characiformes, Characidae), from hatching to 25 da...

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Veröffentlicht in:Fish physiology and biochemistry 2014-06, Vol.40 (3), p.897-909
Hauptverfasser: de Jesus, Lázaro Wender Oliveira, Chehade, Chayrra, Costa, Fabiano Gonçalves, Borella, Maria Inês
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creator de Jesus, Lázaro Wender Oliveira
Chehade, Chayrra
Costa, Fabiano Gonçalves
Borella, Maria Inês
description In this study, we describe for the first time the details of the pituitary gland morphogenesis and the ontogeny of adenohypophyseal cells of a South American Characiform species with great importance for Brazilian Aquaculture, Salminus brasiliensis (Characiformes, Characidae), from hatching to 25 days after hatching (dah), by histochemical and immunocytochemical methods. The pituitary placode was first detected at hatching (0 dah), and the pituitary anlage became more defined at 0.5 dah. The neurohypophysis (NH) development started at 3 dah, and the early formation of its stalk at 12.5 dah. An increase in adenohypophyseal and NH tissues was also observed, and in juveniles at 25 dah, the pituitary displayed similar morphology to that found in adults of this species, displaying the main features of the teleost pituitary. PRL cells were detected at 0.5 dah, together with ACTH and α-MSH cells, followed by GH and SL cells at 1.5 dah. β-FSH cells were detected at 25 dah, while β-LH cells at 5 dah. The pituitary development in this species comprises a dynamic process similar to other teleosts. Our findings in S. brasiliensis corroborate the heterogeneity in the ontogeny of adenohypophyseal cells in teleosts and suggest a role for adenohypophyseal hormones in the early development of this species.
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source MEDLINE; SpringerNature Journals
subjects adults
alpha-melanocyte-stimulating hormone
Animal Anatomy
Animal Biochemistry
Animal Physiology
Animals
Aquaculture
Biomedical and Life Sciences
Characidae
Characidae - embryology
Characidae - growth & development
Characiformes
corticotropin
early development
Freshwater
Freshwater & Marine Ecology
Hatching
Heterogeneity
Histology
Hormones
juveniles
Life Sciences
Morphogenesis
Morphology
ontogeny
Organogenesis
Pituitary gland
Pituitary Gland, Anterior - cytology
Pituitary Gland, Anterior - embryology
posterior pituitary
Salminus brasiliensis
Salmon
Teleostei
Zoology
title Pituitary gland morphogenesis and ontogeny of adenohypophyseal cells of Salminus brasiliensis (Teleostei, Characiformes)
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