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Title

Histochemical aspects of the yolk-sac and digestive tract of larvae of the Senegal sole, Solea senegalensis (Kaup, 1858)

AuthorsSarasquete, Carmen ; González de Canales, María Luisa; Arellano, Juana M.; Muñoz-Cueto, José Antonio; Ribeiro, Laura; Dinis, M. T.
KeywordsHIstochemistry
Glycoproteins
Carbohydrates
Proteins
Larvae
Solea senegalensis
Issue Date1996
PublisherUniversidad de Murcia
CitationHistology and Histopathology (Cellular and Molecular Biology ) 11(4): 881-888 (1996)
AbstractHistochemical distribution of glycoproteins, carbohydrates and proteins rich in different aminoacids were studied using histological and histochemical procedures, in Senegal sole, Solea senegalensis (Kaup, 1858) larvae from hatching until day 15. Glycogen, proteins and glycoproteins were detected in the yolk-sac of the larvae at hatching and during the yolk-resorption. The epithelia1 digestive system (brush border, enterocytes and goblet cells) contained neutral and acid mucins (carboxylated andlor sulphated). Glycogen was observed in the cytoplasm of the digestive absortive cells (enterocytes) and in the liver (hepatocytes) on day 3-4 posthatching. Protein reactions, and specially those that showed proteins rich in arginine, tyrosine and tryptophan, were very intense in the zymogen granules of the pancreatic cells. Oesophageal and intestinal goblet cells contained glucose N-acetyl and sialic acid residues, but the mucin content of these mucous cells did not show affinity towards Con-A, suggesting the absence of glycoproteins with Mannose andlor glucose residues. WGA showed a very intense positivity in the microvilli of the digestive epithelium of the larvae and positive granules for both lectins, specially for Con-A, were detected in the cytoplasm of the anterior intestinal enterocytes.
Description8 páginas, 3 figuras, 1 tabla.
URIhttp://hdl.handle.net/10261/48153
ISSN0213-3911
E-ISSN1699-5848
Appears in Collections:(ICMAN) Artículos
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