The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species

Cardinal neon Paracheirodon axelrodi and bloodfin tetra Aphyocharax anisitsi are two species of characids with high trade value as ornamental fish in South America. Although both species inhabit middle water layers, cardinal neon exhibits a tropical distribution and bloodfin tetra a subtropical one....

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Detalles Bibliográficos
Publicado: 2016
Materias:
characiformes
opsins
pineal complex
pinealocytes
fish protein
scotopsin
anatomy and histology
animal
Characidae
metabolism
photoreceptor cell
pineal body
species difference
Animals
Fish Proteins
Photoreceptor Cells
Pineal Gland
Rod Opsins
Species Specificity
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10974687_v277_n10_p1355_RinconCamacho
http://hdl.handle.net/20.500.12110/paper_10974687_v277_n10_p1355_RinconCamacho
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10974687_v277_n10_p1355_RinconCamacho
record_format dspace
spelling paper:paper_10974687_v277_n10_p1355_RinconCamacho2023-06-08T16:07:08Z The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species characiformes opsins pineal complex pinealocytes fish protein scotopsin anatomy and histology animal Characidae metabolism photoreceptor cell pineal body species difference Animals Characidae Fish Proteins Photoreceptor Cells Pineal Gland Rod Opsins Species Specificity Cardinal neon Paracheirodon axelrodi and bloodfin tetra Aphyocharax anisitsi are two species of characids with high trade value as ornamental fish in South America. Although both species inhabit middle water layers, cardinal neon exhibits a tropical distribution and bloodfin tetra a subtropical one. In this work, we carried out an anatomical, histological and immunohistochemical study of the pineal complex of P. axelrodi and A. anisitsi. In both species, the pineal complex consisted of three components, the pineal and parapineal organs and the dorsal sac (DS). The pineal organ was composed of a short, thin pineal stalk (PS), vertically disposed with respect to the upper surface of the telencephalon, and a pineal vesicle (PV), located at the distal end of the PS and attached to the skull by connective tissue. The pineal window (PW), a site in the skull where the luminal information accesses the pineal organ, appeared just above the latter structures. In the epidermis of P. axelrodi's PW, club cells were identified, but were not observed in the epidermis of A. anisitsi's one. With respect to the DS, it appeared to be folded on itself, and was bigger and more folded in A. anisitsi than in P. axelrodi. Immunohistochemical assays revealed the presence of cone opsin-like and rod opsin-like photoreceptor cells in the PS and PV. These results provide a first insight into the morphological assembly of the pineal complex of both species, and contribute to a better understanding of the integration and transduction of light stimuli in characids. J. Morphol. 277:1355-1367, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10974687_v277_n10_p1355_RinconCamacho http://hdl.handle.net/20.500.12110/paper_10974687_v277_n10_p1355_RinconCamacho
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic characiformes
opsins
pineal complex
pinealocytes
fish protein
scotopsin
anatomy and histology
animal
Characidae
metabolism
photoreceptor cell
pineal body
species difference
Animals
Characidae
Fish Proteins
Photoreceptor Cells
Pineal Gland
Rod Opsins
Species Specificity
spellingShingle characiformes
opsins
pineal complex
pinealocytes
fish protein
scotopsin
anatomy and histology
animal
Characidae
metabolism
photoreceptor cell
pineal body
species difference
Animals
Characidae
Fish Proteins
Photoreceptor Cells
Pineal Gland
Rod Opsins
Species Specificity
The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
topic_facet characiformes
opsins
pineal complex
pinealocytes
fish protein
scotopsin
anatomy and histology
animal
Characidae
metabolism
photoreceptor cell
pineal body
species difference
Animals
Characidae
Fish Proteins
Photoreceptor Cells
Pineal Gland
Rod Opsins
Species Specificity
description Cardinal neon Paracheirodon axelrodi and bloodfin tetra Aphyocharax anisitsi are two species of characids with high trade value as ornamental fish in South America. Although both species inhabit middle water layers, cardinal neon exhibits a tropical distribution and bloodfin tetra a subtropical one. In this work, we carried out an anatomical, histological and immunohistochemical study of the pineal complex of P. axelrodi and A. anisitsi. In both species, the pineal complex consisted of three components, the pineal and parapineal organs and the dorsal sac (DS). The pineal organ was composed of a short, thin pineal stalk (PS), vertically disposed with respect to the upper surface of the telencephalon, and a pineal vesicle (PV), located at the distal end of the PS and attached to the skull by connective tissue. The pineal window (PW), a site in the skull where the luminal information accesses the pineal organ, appeared just above the latter structures. In the epidermis of P. axelrodi's PW, club cells were identified, but were not observed in the epidermis of A. anisitsi's one. With respect to the DS, it appeared to be folded on itself, and was bigger and more folded in A. anisitsi than in P. axelrodi. Immunohistochemical assays revealed the presence of cone opsin-like and rod opsin-like photoreceptor cells in the PS and PV. These results provide a first insight into the morphological assembly of the pineal complex of both species, and contribute to a better understanding of the integration and transduction of light stimuli in characids. J. Morphol. 277:1355-1367, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.
title The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
title_short The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
title_full The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
title_fullStr The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
title_full_unstemmed The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species
title_sort pineal complex: a morphological and immunohistochemical comparison between a tropical (paracheirodon axelrodi) and a subtropical (aphyocharax anisitsi) characid species
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10974687_v277_n10_p1355_RinconCamacho
http://hdl.handle.net/20.500.12110/paper_10974687_v277_n10_p1355_RinconCamacho
_version_ 1768545106113069056

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