Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study

Mostrar todas las versiones(3)

The sense of olfaction in armadillos plays an important role, suggested by the great development of the nasal structures, olfactory bulbs, and related brain regions. The mammalian olfactory mucosa is a privileged site of neuronal death and regeneration during the whole life span. A detailed knowledg...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Ferrari, C.C., Aldana Marcos, H.J., Carmanchahi, P.D., Affanni, J.M.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 1998
Materias:
Apocrine secretion
Apoptosis
Armadillo
Electron microscopy
Olfactory mucosa
Supporting cells
Xenarthra
animal tissue
armadillo
article
cell type
cell ultrastructure
electron microscopy
endoplasmic reticulum
histology
nonhuman
olfactory epithelium
phagosome
priority journal
smelling
Animals
Apocrine Glands
Armadillos
Epithelial Cells
Female
Male
Microscopy, Electron
Olfactory Mucosa
Olfactory Nerve
Smell
South America
Animalia
Chaetophractus villosus
Dasypodidae
Edentata
Mammalia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0003276X_v252_n3_p325_Ferrari
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_0003276X_v252_n3_p325_Ferrari
record_format dspace
spelling paperaa:paper_0003276X_v252_n3_p325_Ferrari2023-06-12T16:39:45Z Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study Anat. Rec. 1998;252(3):325-339 Ferrari, C.C. Aldana Marcos, H.J. Carmanchahi, P.D. Affanni, J.M. Apocrine secretion Apoptosis Armadillo Electron microscopy Olfactory mucosa Supporting cells Xenarthra animal tissue armadillo article cell type cell ultrastructure electron microscopy endoplasmic reticulum histology nonhuman olfactory epithelium phagosome priority journal smelling Animals Apocrine Glands Apoptosis Armadillos Epithelial Cells Female Male Microscopy, Electron Olfactory Mucosa Olfactory Nerve Smell South America Animalia Armadillo Chaetophractus villosus Dasypodidae Edentata Mammalia The sense of olfaction in armadillos plays an important role, suggested by the great development of the nasal structures, olfactory bulbs, and related brain regions. The mammalian olfactory mucosa is a privileged site of neuronal death and regeneration during the whole life span. A detailed knowledge of its ultrastructure is convenient for gaining insight into the factors controlling those phenomena. We performed this work in species not previously studied in order to provide a firm basis for further research on those factors. No information is available on the histology and ultrastructure of the olfactory mucosa in the order Xenarthra to which armadillos belong. Samples from the endoturbinals of the armadillo Chaetophractus villosus were prepared for light and electron microscopic examination by the usual conventional means. The olfactory epithelium of Chaetophractus villosus shows the classical three types of cells: supporting cells, olfactory receptor neurons, and basal cells. The olfactory neurons and the basal cells were similar to that described in other species. Two different types of supporting cells are described. An outstanding characteristic of the supporting cells is the normal presence of abundant phagosomes, apical secretory granules, apocrine-like protrusions, and highly developed smooth endoplasmic reticulum. Apoptotic bodies are frequently found in the infranuclear cytoplasm of supporting cells. The ductular epithelium of Bowman's glands reveals secretory activity. The lamina propria shows mixed Bowman's glands. Great development of smooth endoplasmic reticulum is observed in the mucous acinar cells. Evidence for merocrine and apocrine mechanisms in the Bowman's glands is presented. The presence of apoptotic bodies and phagosomes in supporting cells suggests a participation in the cellular events induced by cell death and proliferation of the olfactory epithelium. The variety of characteristics exhibited by the supporting cells of the olfactory mucosa may contribute to a deeper understanding of their scarcely known functions. Fil:Ferrari, C.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aldana Marcos, H.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Carmanchahi, P.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0003276X_v252_n3_p325_Ferrari
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic Apocrine secretion
Apoptosis
Armadillo
Electron microscopy
Olfactory mucosa
Supporting cells
Xenarthra
animal tissue
armadillo
article
cell type
cell ultrastructure
electron microscopy
endoplasmic reticulum
histology
nonhuman
olfactory epithelium
phagosome
priority journal
smelling
Animals
Apocrine Glands
Apoptosis
Armadillos
Epithelial Cells
Female
Male
Microscopy, Electron
Olfactory Mucosa
Olfactory Nerve
Smell
South America
Animalia
Armadillo
Chaetophractus villosus
Dasypodidae
Edentata
Mammalia
spellingShingle Apocrine secretion
Apoptosis
Armadillo
Electron microscopy
Olfactory mucosa
Supporting cells
Xenarthra
animal tissue
armadillo
article
cell type
cell ultrastructure
electron microscopy
endoplasmic reticulum
histology
nonhuman
olfactory epithelium
phagosome
priority journal
smelling
Animals
Apocrine Glands
Apoptosis
Armadillos
Epithelial Cells
Female
Male
Microscopy, Electron
Olfactory Mucosa
Olfactory Nerve
Smell
South America
Animalia
Armadillo
Chaetophractus villosus
Dasypodidae
Edentata
Mammalia
Ferrari, C.C.
Aldana Marcos, H.J.
Carmanchahi, P.D.
Affanni, J.M.
Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
topic_facet Apocrine secretion
Apoptosis
Armadillo
Electron microscopy
Olfactory mucosa
Supporting cells
Xenarthra
animal tissue
armadillo
article
cell type
cell ultrastructure
electron microscopy
endoplasmic reticulum
histology
nonhuman
olfactory epithelium
phagosome
priority journal
smelling
Animals
Apocrine Glands
Apoptosis
Armadillos
Epithelial Cells
Female
Male
Microscopy, Electron
Olfactory Mucosa
Olfactory Nerve
Smell
South America
Animalia
Armadillo
Chaetophractus villosus
Dasypodidae
Edentata
Mammalia
description The sense of olfaction in armadillos plays an important role, suggested by the great development of the nasal structures, olfactory bulbs, and related brain regions. The mammalian olfactory mucosa is a privileged site of neuronal death and regeneration during the whole life span. A detailed knowledge of its ultrastructure is convenient for gaining insight into the factors controlling those phenomena. We performed this work in species not previously studied in order to provide a firm basis for further research on those factors. No information is available on the histology and ultrastructure of the olfactory mucosa in the order Xenarthra to which armadillos belong. Samples from the endoturbinals of the armadillo Chaetophractus villosus were prepared for light and electron microscopic examination by the usual conventional means. The olfactory epithelium of Chaetophractus villosus shows the classical three types of cells: supporting cells, olfactory receptor neurons, and basal cells. The olfactory neurons and the basal cells were similar to that described in other species. Two different types of supporting cells are described. An outstanding characteristic of the supporting cells is the normal presence of abundant phagosomes, apical secretory granules, apocrine-like protrusions, and highly developed smooth endoplasmic reticulum. Apoptotic bodies are frequently found in the infranuclear cytoplasm of supporting cells. The ductular epithelium of Bowman's glands reveals secretory activity. The lamina propria shows mixed Bowman's glands. Great development of smooth endoplasmic reticulum is observed in the mucous acinar cells. Evidence for merocrine and apocrine mechanisms in the Bowman's glands is presented. The presence of apoptotic bodies and phagosomes in supporting cells suggests a participation in the cellular events induced by cell death and proliferation of the olfactory epithelium. The variety of characteristics exhibited by the supporting cells of the olfactory mucosa may contribute to a deeper understanding of their scarcely known functions.
format Artículo
Artículo
publishedVersion
author Ferrari, C.C.
Aldana Marcos, H.J.
Carmanchahi, P.D.
Affanni, J.M.
author_facet Ferrari, C.C.
Aldana Marcos, H.J.
Carmanchahi, P.D.
Affanni, J.M.
author_sort Ferrari, C.C.
title Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
title_short Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
title_full Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
title_fullStr Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
title_full_unstemmed Olfactory mucosa of the South American armadillo Chaetophractus villosus: An ultrastructural study
title_sort olfactory mucosa of the south american armadillo chaetophractus villosus: an ultrastructural study
publishDate 1998
url http://hdl.handle.net/20.500.12110/paper_0003276X_v252_n3_p325_Ferrari
work_keys_str_mv AT ferraricc olfactorymucosaofthesouthamericanarmadillochaetophractusvillosusanultrastructuralstudy
AT aldanamarcoshj olfactorymucosaofthesouthamericanarmadillochaetophractusvillosusanultrastructuralstudy
AT carmanchahipd olfactorymucosaofthesouthamericanarmadillochaetophractusvillosusanultrastructuralstudy
AT affannijm olfactorymucosaofthesouthamericanarmadillochaetophractusvillosusanultrastructuralstudy
_version_ 1769810305896939520

Ejemplares similares