Artículo
Comparative histology of the digestive tract in three new world marsupials
Andrini, Laura Beatríz; García, Marcela Nilda; Inda, Ana María; Errecalde, Ana Lia; Goin, Francisco Javier
; Carlini, Alfredo Armando
; Scarano, Alejo Carlos
; Martin, Gabriel Mario
; de Los Reyes, Leonardo Martín
Fecha de publicación:
04/2019
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Acta Zoologica
ISSN:
0001-7272
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We compare the main histological features of the digestive tract of three selected New World didelphid marsupials (Mammalia, Metatheria, Didelphimorphia, Didelphidae): the White-eared Opossum Didelphis albiventris Lund, 1840, the Short-tailed Opossum Monodelphis dimidiata Wagner, 1847, and the Patagonian Opossum Lestodelphys halli Thomas, 1921. The three species have a geographic distribution restricted to south-eastern and southern South America, and have quite distinct body masses, adaptations and life histories. Our observations include the following: (i) submucosal glands are present throughout the oesophagus of D. albiventris, only in its first third in M. dimidiata, and are lacking in L. halli; (ii) in the stomach and duodenum, the serus coat coat in D. albiventris is cuboidal (simple, squamous mesothelial layer in the other two species); (iii) the duodenum in L. halli has large folds, short crypts and Brunner's glands (the other species lack folds and Brunner's glands); (iv) the colon's mucous membrane has short, scarce villi in D. albiventris (villi absent in the remaining species). Some of the observed differences can be due to ecological adaptations, especially in the relatively large-sized, extremely omnivorous D. albiventris (e.g., colon villi).
Palabras clave:
DIDELPHIS
,
DIGESTIVE TRACT
,
HISTOLOGY
,
LESTODELPHYS
,
MONODELPHIS
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(CIEMEP)
Articulos de CENTRO DE INVESTIGACION ESQUEL DE MONTAÑA Y ESTEPA PATAGONICA
Articulos de CENTRO DE INVESTIGACION ESQUEL DE MONTAÑA Y ESTEPA PATAGONICA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Andrini, Laura Beatríz; García, Marcela Nilda; Inda, Ana María; Errecalde, Ana Lia; Goin, Francisco Javier; et al.; Comparative histology of the digestive tract in three new world marsupials; Wiley Blackwell Publishing, Inc; Acta Zoologica; 100; 2; 4-2019; 153-159
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