Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?

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The uropygial gland is morphologically different in diverse bird species. This gland was macroscopically and microscopically examined in penguins, storm petrels and skuas. In all the studied species, the gland showed a connective tissue capsule and one papilla. A negative relationship was observed b...

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Autores principales: Chiale, María Cecilia, Fernández, Patricia Elena, Gimeno, Eduardo Juan, Barbeito, Claudio Gustavo, Montalti, Diego
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Zoología
Avian gland
Preen gland
Seabird
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85158
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85158
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Avian gland
Preen gland
Seabird
spellingShingle Zoología
Avian gland
Preen gland
Seabird
Chiale, María Cecilia
Fernández, Patricia Elena
Gimeno, Eduardo Juan
Barbeito, Claudio Gustavo
Montalti, Diego
Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
topic_facet Zoología
Avian gland
Preen gland
Seabird
description The uropygial gland is morphologically different in diverse bird species. This gland was macroscopically and microscopically examined in penguins, storm petrels and skuas. In all the studied species, the gland showed a connective tissue capsule and one papilla. A negative relationship was observed between the relative glandular mass and the body mass, being highest in petrels (small glands) and lowest in penguins (large glands). Birds that spend much time in water (penguins) have gland characteristics related to a continuous, but not stored, secretion, such as straight adenomers, the presence of abundant elastic fibres in the connective tissue and the absence of a primary storage chamber. Instead, birds that have less contact with water (storm petrels) have a gland with much more tortuous adenomers and a small primary storage chamber. The secretory cells showed a positive PAS reaction in all the glandular zones. Therefore, no differences could be seen between the sebaceous and glucogenic zones, as proposed in other birds. These results allow the conclusion that, in aquatic birds, there is no connection between the relative mass of the uropygial gland and the time in contact with water, though the differences found in the histological structure could be related to a different contact with the aquatic environment.
format Articulo
Articulo
author Chiale, María Cecilia
Fernández, Patricia Elena
Gimeno, Eduardo Juan
Barbeito, Claudio Gustavo
Montalti, Diego
author_facet Chiale, María Cecilia
Fernández, Patricia Elena
Gimeno, Eduardo Juan
Barbeito, Claudio Gustavo
Montalti, Diego
author_sort Chiale, María Cecilia
title Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
title_short Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
title_full Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
title_fullStr Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
title_full_unstemmed Morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
title_sort morphology and histology of the uropygial gland in antarctic birds: relationship with their contact with the aquatic environment?
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85158
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