Histological, histochemical and ultrastructural analysis of the gastric mucosa in Oncorhynchus mykiss

Garrido, M.V. Ostos; Torres, Marı́a Isabel; Equisoain, M.A. Abaurrea

doi:10.1016/0044-8486(93)90363-4

Cited by 32 publications

(26 citation statements)

References 24 publications

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“…This observation is in accordance with the data obtained by Abol-Munafi et al (2006) who reported a PAS-positive mucous in the stomach of marble goby (Oxyeleotris marmorata) larvae immediately after development of gastric glands. Similar observation was made by Verreth et al (1992) in African catfish (Clarias gariepinus) and by Ostos Garrido et al (1993) in rainbow trout (Oncorhynchus mykiss).…”

Section: Discussionsupporting

confidence: 71%

The ontogenetic development of the digestive tract and accessory glands of sterlet (Acipenser ruthenus L.) larvae during endogenous feeding

Wegner

Ostaszewska

Rozek³

2009

Rev Fish Biol Fisheries

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The process of differentiation of digestive tract structures in the sterlet Acipenser ruthenus (L.) larvae was studied from hatching to the beginning of exogenous feeding [9 dph (day post hatching)] using histological procedures. On the day of hatching the digestive tract was closed and completely filled with nutrients (the yolk platelets) that were successively utilized during development. A liver primordium was present in the ventral region of the yolksac. The pancreas was observed on the 2 dph. At the same time, the mouth opening took place. Glandular and nonglandular stomach and anterior and intermediate intestine developed from the yolksac walls. Gastric glands became visible on the 7 dph. The primary intestine developed into the spiral intestine. At the moment of onset of exogenous feeding the yolk material was completely exhausted and there was not mixed feeding observed in sterlet larvae. The fish started exogenous feeding on the 9 dph, which was accompanied with evacuation of melanin plug. At the end of endogenous feeding the digestive tract of sterlet larvae was developed and functional, so they could properly utilize food.

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Section: Discussionsupporting

confidence: 71%

The ontogenetic development of the digestive tract and accessory glands of sterlet (Acipenser ruthenus L.) larvae during endogenous feeding

Wegner

Ostaszewska

Rozek³

2009

Rev Fish Biol Fisheries

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“…(), the granules of epithelial cells of the stomach of Schilbe mystus appear frequently in contact with the apical plasma membrane to empty its contents into the gastric lumen. These granules are secreted into the gastric lumen by exocytosis (Noaillac‐Depeyre and Gas, ; Ostos‐Garrido et al ., ) and they protect the epithelium of stomach from autodigestion processes caused by secretions produced in the gastric glands (Ferraris et al ., ). Other authors found microvilli related to absorption in the gastric epithelial cells in some teleosts, such as Salmo gairdneri (Ezeasor and Stokoe, ), Mystus aor (Sinha and Chakrabarti, ), Gymnothorax pictus (Takiue and Akiyoshi, ).…”

Section: Discussionmentioning

confidence: 94%

Ultrastructure of the digestive tract in neotropical carnivorous catfish Hemisorubim platyrhynchos (Valenciennes, 1840) (Siluriformes, Pimelodidae)

et al. 2015

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The surface of the digestive tract of Hemisorubim platyrhynchos was analyzed by scanning electron microscopy. Morphometric studies by transmission electron microscopy were performed to analysis the intestinal microvilli. H. platyrhynchos is a Neotropical carnivorous freshwater catfish featuring a short digestive tract composed of a short esophagus, saccular stomach, and intestine with four regions: anterior, middle, posterior, and rectal. The esophageal surface is constituted by fingerprint-like microridges that anchor the mucosubstances secreted by goblet cells facilitating the passage of food. Goblet cells present the opening to the esophageal lumen, between the microridges. Club cells are in basal epithelium and they do not present the opening to the lumen. The gastric luminal surface shows polygon-shaped epithelial cells which secrete granules by exocytose to protect the gastric surface. The intestinal luminal surface reveals folds that are thicker in the anterior intestine than in the posterior intestine, increasing the absorptive surface area. The intestinal surface presents the microvilli of enterocytes and the opening of goblet cells. The morphometric analysis showed that the microvilli are longer in the anterior intestine, significantly decreasing towards the posterior intestine. The microvilli surface area significantly is greater in the anterior and middle intestine than in the posterior intestine. Numerous openings of goblet cells were observed in the posterior intestine acting in epithelial protection and lubrication. SCANNING 38:336-343, 2016. © 2015 Wiley Periodicals, Inc.

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“…It was found that a ‘stratum compactum’ composed of dense collagen fibres between the lamina propria and the submucosa in S. dumerili (Grau et al. 1992), Oncorhynchus mykiss (Ostos Garrido et al. 1993) and Hippoglossus hippoglossus (Murray et al.…”

Section: Discussionmentioning

confidence: 99%

A study of morphology and histology of the alimentary tract of Glyptosternum maculatum (Sisoridae, Siluriformes)

et al. 2011

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2011. A study of morphology and histology of the alimentary tract of Glyptosternum maculatum (Sisoridae, Siluriformes). -Acta Zoologica (Stockholm) 92: 161-169.The structure of alimentary tract has been studied in a cold water fish Glyptosternum maculatum, an endemic teleost species of notable economic importance and with high potential for controlled rearing of the species in Tibet, by light and electron microscope. Glyptosternum maculatum has short oesophagus, large caecal-type stomach and short intestine, and the digestive tract with four layers: mucosa, submucosa, muscularis and serosa. Taste buds were found in the epithelium of lips, buccopharynx and oesophagus. The stratified epithelium of buccopharynx and oesophagus was located with numerous goblet cells. The U-shaped stomach has three parts, corresponding to mammalian cardiac, fundus and pyloric portion, lined with a single-layered columnar epithelium, and tubular gastric glands are present in cardiac and fundic portion, but absent in pyloric portion. No pyloric caeca was detected. The intestine is separated from the stomach by a loop valve. The intestine epithelium is composed of simple columnar cells with a distinct microvillus brush border and many goblet cells. Meanwhile, the intestinal coefficient was 0.898. At the ultrastuctural level, three type cells (mucous, glandular and endocrine cell) were found in the stomach, and glandular cell with a great amount of pepsinogen granules. The enterocytes of the intestinal mucosa display abundant endoplasmic reticulum, mitochondria and well-developed microvilli.

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Histological, histochemical and ultrastructural analysis of the gastric mucosa in Oncorhynchus mykiss

Cited by 32 publications

References 24 publications

The ontogenetic development of the digestive tract and accessory glands of sterlet (Acipenser ruthenus L.) larvae during endogenous feeding

The ontogenetic development of the digestive tract and accessory glands of sterlet (Acipenser ruthenus L.) larvae during endogenous feeding

Ultrastructure of the digestive tract in neotropical carnivorous catfish Hemisorubim platyrhynchos (Valenciennes, 1840) (Siluriformes, Pimelodidae)

A study of morphology and histology of the alimentary tract of Glyptosternum maculatum (Sisoridae, Siluriformes)

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