Histology and Ultrastructure of the Gut of the Tilapia (<i>Tilapia</i> spp.), a Hybrid Teleost

Gargiulo, Anna; Ceccarelli, Piero; Dall’Aglio, Cecilia; Pedini, V.

doi:10.1111/j.1439-0264.1998.tb00162.x

Cited by 56 publications

(56 citation statements)

References 22 publications

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“…This finding agrees with that of Gargiulo et al (1998), in Tilapia spp., and Albrecht et al (2001), in Leporinus friderici and Leporinus taeniofasciatus. However, this result contradicts with that of Grau et al (1992) who described three layers of unstriated muscle fibres throughout the whole intestinal length of Seriola dumerili.…”

Section: In Esox Lucius and Silurus Glanis Andsupporting

confidence: 83%

“…This result agrees with that of Cataldi et al (1987), in Sparus aurata, and Gargiulo et al (1998), in Tilapia spp. The enterocytes of the intestine of both studied species are tall columnar cells with numerous apical microvilli, forming the brush border, and are interconnected in the apical regions by the junctional complexes.…”

Section: In Esox Lucius and Silurus Glanis Andsupporting

confidence: 82%

“…This result agrees with that of Grau et al (1992) in Seriola dumerili, but contradicts with that of Gargiulo et al (1998) who stated that the thickness of the rectal muscularis of Tilapia spp. is the same as the rest of the intestine.…”

Section: In Esox Lucius and Silurus Glanis Andcontrasting

confidence: 37%

“…This observation agrees with that of Deplano et al (1989), in Dicentrarchus labrax, Olsen et al (1999), in Salvelinus alpinus, Kozarić et al (2004), in Merluccius merluccius, andOlsen et al (2005), in Oncorhynchus mykiss, who stated that the presence of the endocytotic vesicles in the rectal enterocytes may be a complement to the luminal protein digestion by absorbing protein macromolecules. Moreover, Gargiulo et al (1998), in Tilapia spp, suggested that the endocytosis is followed by the intracellular digestion by the lysosomes.…”

Section: In Esox Lucius and Silurus Glanis Andmentioning

confidence: 99%

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Comparative study on the intestine of Schilbe mystus and Labeo niloticus in correlation with their feeding habits

Amer

Naguib

Ghafar

2008

Egypt. J. of Aquatic Biolo. and Fish.

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he present investigation aims to illustrate the morphological, histological and ultrastructural differences in the intestine of a carnivorous fish, Schilbe mystus and a herbivorous fish, Labeo niloticus, in correlation with their feeding habits. The histological examination of the mucosa of the intestine of both studied species revealed that it is built up of a simple columnar epithelium that contains goblet cells. Though these, are generally more numerous in the intestine of Schilbe mystus than in that of Labeo niloticus. The ultrastructural investigation of the mucosa of the duodenum and ileum of Schilbe mystus revealed that the enterocytes are tall columnar cells and possess well-developed microvilli, numerous mitochondria, microtubules and numerous lipid droplets. The ultrastructural examination of the mucosa of the ileum of Labeo niloticus revealed that the enterocytes are tall columnar and possess well-developed microvilli, numerous mitochondria, microtubules, a few endocytotic channels and aggregated chylomicrons. The enterocytes of the rectum of both studied species are tall columnar and are characterized by the presence of short and wellspaced microvilli, a well-developed vesiculotubular system, numerous microtubules and mitochondria. In addition, the rectal enterocytes of Schilbe mystus contain endocytotic vesicles. The intestinal muscularis of both studied species is well-developed and built up of unstriated muscle fibres, which are arranged into two layers: an inner circular layer and an outer longitudinal one. The rectal muscularis of both studied species is thicker than that of the rest of the intestine.

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Section: In Esox Lucius and Silurus Glanis Andsupporting

confidence: 83%

Section: In Esox Lucius and Silurus Glanis Andsupporting

confidence: 82%

Section: In Esox Lucius and Silurus Glanis Andcontrasting

confidence: 37%

Section: In Esox Lucius and Silurus Glanis Andmentioning

confidence: 99%

See 2 more Smart Citations

Comparative study on the intestine of Schilbe mystus and Labeo niloticus in correlation with their feeding habits

Amer

Naguib

Ghafar

2008

Egypt. J. of Aquatic Biolo. and Fish.

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“…The intestine of O. hepsetus has two distinct parts, the same as in Tilapia spp. [31] . The anterior part is characterized by a larger number of thin and elongated longitudinal folds, which branch out to form villi, making the organ's lumen very small.…”

Section: Discussionmentioning

confidence: 99%

Immunohistochemical study of the digestive tract ofOligosarcus hepsetus

Vieira-Lopes

Pinheiro²,

Sales³

et al. 2013

WJG

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AIM:To describe the histology of the digestive tract and to investigate the occurrence of endocrine cells in Oligosarcus hepsetus (O. hepsetus ). METHODS:The digestive tract (DT) of O. hepsetus was divided into esophagus, two stomach regions (glandular and non-glandular) and two intestinal regions (anterior and posterior). These specimens were processed by routine histological techniques and stained with hematoxylin-eosin, Gomori's trichrome, periodic acid Schiff (PAS) and Alcian blue (AB). An immunohistochemical method using avidin-biotin-peroxidase was employed. RESULTS:The esophagus is lined with a non-keratinized stratified squamous epithelium that is reactive to PAS and AB. The stomach has a mucosa lined with a simple columnar epithelium with mucus-secreting cells that are reactive only to PAS. The intestine has a simple columnar epithelium with a brush border and goblet cells that are reactive to PAS and AB. Somatostatin, serotonin and cholecystokinin immunoreactive cells were identified throughout the DT. CONCLUSION:This study revealed adaptations for the species' diet and showed that the distribution and relative frequency of immunoreactive cells are similar to those of other fish.

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Histology and ultrastructure of the gut epithelium of the neotenic cave salamander, Proteus anguinus (Amphibia, Caudata)

Mali¹,

Bulog²

2003

Journal of Morphology

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Histological, histochemical, and ultrastructural features of the gut of the European endemic cave salamander Proteus anguinus were studied. The gut is a relatively undifferentiated muscular tube lined with a simple columnar epithelium containing numerous goblet cells. The mucosa and underlying lamina propria/submucosa are elevated into a number of high longitudinal folds projecting into the lumen. The enterocytes are covered apically with uniform microvilli. Irregularity in the arrangement of microvilli was observed. Occasionally, irregular protrusions of the cytoplasm appear between groups of microvilli. Pinocytotic activity occurs at the bases of the intermicrovillous space. Mitochondria are numerous in the apical cytoplasm and basally beneath the nuclei. The supranuclear cytoplasm contains most of the cell organelles. The lateral plasma membranes of adjacent cells interdigitate and are joined by junctional complexes. The periodic acid-Schiff (PAS) reaction, indicating neutral mucosubstances, is positive only in the apical brush border of enterocytes and in goblet cells. The goblet cells also stained with Alcian blue (AB), at pH 2.5, thus revealing the presence of carboxylated glycosaminoglycans. Compact aggregations of AB- and PAS-negative cells are situated directly below the epithelium. Mitotic figures are present in individual clusters of cells. The fine structure of cells in these clusters indicated that these cells could be responsible for renewal of intestinal epithelium. Numerous endocrine-like cells could also be seen. The closely packed smooth muscle cells and amorphous extracellular material with collagen fibrils constitute a net-like structure under the basal lamina that is very closely associated with the epithelium. There are numerous acidophilic granular cells between epithelial cells, in the lamina propria/submucosa, and between cells aggregations. They seem to be associated with nematode infections and possibly constitute a humoral defense mechanism.

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Histology and Ultrastructure of the Gut of the Tilapia (Tilapia spp.), a Hybrid Teleost

Cited by 56 publications

References 22 publications

Comparative study on the intestine of Schilbe mystus and Labeo niloticus in correlation with their feeding habits

Comparative study on the intestine of Schilbe mystus and Labeo niloticus in correlation with their feeding habits

Immunohistochemical study of the digestive tract ofOligosarcus hepsetus

Histology and ultrastructure of the gut epithelium of the neotenic cave salamander, Proteus anguinus (Amphibia, Caudata)

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