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Artículo

Biochemical and morphological features of the uropygial gland of the Chilean Flamingo and their functional implications

Chiale, Maria CeciliaIcon ; Cadierno, María PilarIcon ; Fernández, Patricia Elena; Mijailovsky, Sergio JavierIcon ; Heras, HoracioIcon ; Barbeito, Claudio GustavoIcon ; Montalti, DiegoIcon
Fecha de publicación: 08/2021
Editorial: Elsevier Gmbh
Revista: Zoology
ISSN: 0944-2006
e-ISSN: 1873-2720
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

Flamingos inhabit specialized habitats and breed in large colonies, building their nests on islands that limit the access of terrestrial predators. Many aspects of their uropygial gland are still unknown. The uropygial gland, a sebaceous organ exclusive to birds, shares some histological features among species such as the presence of a capsule, adenomers with stratified epithelium and secondary and primary chambers. We found that the uropygial gland of the Chilean Flamingo (Phoenicopterus chilensis) displays most of these characteristics but lacks a primary storage chamber. This absence may be an adaptation to their aquatic environment. The uropygial secretion of this species has a variety of glycoconjugates while its lipid moiety is largely dominated by waxes and minor amounts of triacylglycerols and fatty acids. Mass spectrometry analysis of the preen wax showed branched fatty acids of varied chain length and unbranched fatty alcohols, resulting in a complex mixture of wax esters and no differences between sexes were observed. The glycoconjugates present in the preen secretion could play a role as antimicrobial molecules, as suggested for other bird species, while the absence of diester waxes in flamingos might be related with their nesting habits and limited exposure to predation. Our results were evaluated according to physiological and ecological aspects of the flamingo's biology.
Palabras clave: AVES , GLYCOCONJUGATES , PHOENICOPTERIDAE , PREEN GLAND , WAXES
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/137459
URL: https://www.sciencedirect.com/science/article/abs/pii/S0944200621000490
DOI: https://doi.org/10.1016/j.zool.2021.125941
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(INIBIOLP)
Articulos de INST.DE INVEST.BIOQUIMICAS DE LA PLATA
Citación
Chiale, Maria Cecilia; Cadierno, María Pilar; Fernández, Patricia Elena; Mijailovsky, Sergio Javier; Heras, Horacio; et al.; Biochemical and morphological features of the uropygial gland of the Chilean Flamingo and their functional implications; Elsevier Gmbh; Zoology; 147; 8-2021; 1-11
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