Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908

Seahorses are teleosts that have evolved a brood pouch analogous to the mammalian uterus. Attempts to breed the fish in captivity - a prerequisite for aquaculture and conservation of this species - are hampered by many unanswered questions regarding its general reproductive biology, especially its g...

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Main Authors: Oconer, E. P., Herrera, A. A., Amparado, E. A., Wetzel, J. T., De La Paz, R. M.
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Published: Animo Repository 2003
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Online Access:https://animorepository.dlsu.edu.ph/faculty_research/1191
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spelling oai:animorepository.dlsu.edu.ph:faculty_research-21902021-05-18T08:39:21Z Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908 Oconer, E. P. Herrera, A. A. Amparado, E. A. Wetzel, J. T. De La Paz, R. M. Seahorses are teleosts that have evolved a brood pouch analogous to the mammalian uterus. Attempts to breed the fish in captivity - a prerequisite for aquaculture and conservation of this species - are hampered by many unanswered questions regarding its general reproductive biology, especially its gestation. To determine if the hormones secreted by gestating female mammals are the same hormones involved in the unique pattern of male gestation in the seahorse (Hippocampus barbouri Jordan and Richardson 1908), the site of synthesis of hormones apparently involved in male gestation was localized by immunohistochemistry, and the presence of 3 β-hydroxysteroid dehydrogenase was investigated through enzyme histochemical analysis. Ultrastructure of the brood epithelium was further analyzed using transmission electron microscope. Results showed that both progesterone and estradiol are involved in gestation in the male seahorse. Synthesis of estrogen and progesterone was observed in the testis, brood pouch and interrenal tissues of gravid seahorse. Increase in the number and size of mitochondria was noted in gravid pouch. 2003-03-01T08:00:00Z text https://animorepository.dlsu.edu.ph/faculty_research/1191 Faculty Research Work Animo Repository Sea horses—Reproduction Biology
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
topic Sea horses—Reproduction
Biology
spellingShingle Sea horses—Reproduction
Biology
Oconer, E. P.
Herrera, A. A.
Amparado, E. A.
Wetzel, J. T.
De La Paz, R. M.
Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
description Seahorses are teleosts that have evolved a brood pouch analogous to the mammalian uterus. Attempts to breed the fish in captivity - a prerequisite for aquaculture and conservation of this species - are hampered by many unanswered questions regarding its general reproductive biology, especially its gestation. To determine if the hormones secreted by gestating female mammals are the same hormones involved in the unique pattern of male gestation in the seahorse (Hippocampus barbouri Jordan and Richardson 1908), the site of synthesis of hormones apparently involved in male gestation was localized by immunohistochemistry, and the presence of 3 β-hydroxysteroid dehydrogenase was investigated through enzyme histochemical analysis. Ultrastructure of the brood epithelium was further analyzed using transmission electron microscope. Results showed that both progesterone and estradiol are involved in gestation in the male seahorse. Synthesis of estrogen and progesterone was observed in the testis, brood pouch and interrenal tissues of gravid seahorse. Increase in the number and size of mitochondria was noted in gravid pouch.
format text
author Oconer, E. P.
Herrera, A. A.
Amparado, E. A.
Wetzel, J. T.
De La Paz, R. M.
author_facet Oconer, E. P.
Herrera, A. A.
Amparado, E. A.
Wetzel, J. T.
De La Paz, R. M.
author_sort Oconer, E. P.
title Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
title_short Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
title_full Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
title_fullStr Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
title_full_unstemmed Immunolocalization of hormones involved in male gestation in the seahorse, Hippocampus barbouri Jordan and Richardson 1908
title_sort immunolocalization of hormones involved in male gestation in the seahorse, hippocampus barbouri jordan and richardson 1908
publisher Animo Repository
publishDate 2003
url https://animorepository.dlsu.edu.ph/faculty_research/1191
_version_ 1701351047873691648