Histological and histochemical observations in the stomach of the Senegal sole, Solea senegalensis

• Arellano, J.M. ^[1] ; Storch, V. ^[2] ; Sarasquete, C. ^[1]
  1. [1] Institute of Marine Sciences of Andalucia, CSIC, Puerto Real, Cadiz, Spain
  2. [2] Department of Zoology I, University of Heidelberg , Heidelberg, Germany
• Localización: Histology and histopathology: cellular and molecular biology, ISSN-e 1699-5848, ISSN 0213-3911, Vol. 16, Nº. 2, 2001, págs. 511-521
• Idioma: inglés
• Enlaces
  • Texto completo
• Dialnet Métricas: 5 Citas
• Resumen

  • An histological and hi tochemical study was conducted on the stomach of adult Senegal sole, Solea senegalensis specimeDs. The stomach was made up of four distinct layers: mucosa, lamina propria-submucosa-, muscularis and serosa. Surface epithelial, glandular and rod let cells were present in the mucosa. Cells of the columnar epithelium contained a basal nucleus.

    Numerous mitochondria, granular endoplasmic reticulum and Golgi apparatus consisting of several parallel cisternae and vesicles were observed in the cytoplasm of these cells. The lysosomes were small, round and dense. The gastric glands were numerous in the pyloric and fundic regions but absent in the cardiac stomach. The e glands were formed by two cell-types:

    light and dark cells. The light cells were characterised by numerous mitochondria, while dark cells had slightly fewer mitochondria and a tubulo-vesicular system.

    Rodlet cells similar to those observed in other teleostean fish were present among the epithelial cells.

    Although the epithelial cells of the mucosa contained a weak presence of neutral and acid mucopolysaccharides/mucosubstances, the e substances were abundant in the lamina propria-submucosa.

    Proteins rich in arginine, lysine, cysteine and cystine were rarely present in the mucosa and lamina propriasubmucosa of stomach, while proteins rich in tyrosine \ ere abundant in these layers. Acid phosphatase, and ATP-ase (pH 7.2 and 9.4) activitie were detected in the mucosa and lamina propria-submucosa. Alkaline phosphatase activity was not detected.