Ultrastructural study of the Distal part of the intestine of Oncorhynchus mykiss. Absorption of dietary protein

Abaurrea, María Asunción; Núñez, María Isabel; Ostos, M.V.

doi:10.1016/0968-4328(93)90022-s

Cited by 10 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pinocytotic uptake and subsequent intracellular digestion of exogenous proteins by rectal epithelia has been documented frequently in both larval fish and adult stomachless fish (Noaillac-Depeyre & Gas, 1976;Watanabe, 1981Watanabe, , 1984Govoni et al, 1986;Caceci & Hrubec, 1990;Abaurrea et al, 1993). In stomachless species, protein digestion occurs intracellularly in the rectal epithelium (Govoni et al, 1986), as also in species with functional stomachs (Ezeasor, 1981;Morrison, 1987), probably increasing protein digestion efficiency, when gastric emptying is too frequent for complete hydrolysis of proteins in the stomach (Ezeasor, 1981).…”

Section: Discussionmentioning

confidence: 99%

A comparative histological and histochemical study of the post‐gastric alimentary canal from three species of pleuronectid, the Atlantic halibut, the yellowtail flounder and the winter flounder

Murray

Wright

Goff

1996

Journal of Fish Biology

View full text Add to dashboard Cite

The histology and mucus histochemistry of the pleuronectid post-gastric alimentary canal was examined using light and electron microscopy. Distinct differences in goblet cell mucus histochemistry were observed between species, with the two closest taxonomic species, the winter flounder and the yellowtail flounder showing the most diversity and the halibut showing regional variation. Numbers of goblet cells within post-gastric regions did not differ significantly between species, but were significantly different between regions within species increasing toward the rectum. The post-gastric region was divisible into two areas based upon the ultrastructural features of lipid digestion and absorption in the intestine and pyloric caeca, and of exogenous protein in the rectum. The combination of species-specific histochemical differences in mucus and general histological and ultrastructural differences within the post-gastric regions between these species suggest a correlation between lumenal environmental conditions/histology and natural prey preference. 1996 The Fisheries Society of the British Isles

show abstract

Section: Discussionmentioning

confidence: 99%

A comparative histological and histochemical study of the post‐gastric alimentary canal from three species of pleuronectid, the Atlantic halibut, the yellowtail flounder and the winter flounder

Murray

Wright

Goff

1996

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…Buccal or orophryngeal cavity shows structural adaptability and great plasticity for eating different food items (Abbate et al, ; Abbate, Guerrera, Montalbano, Ciriaco, & Germanà, ; Abbate, Guerrera, Montalbano, de Carlos, et al, ; Baaoom, ; El Bakary, ; El Bakary, ; Harabawy, Mekkawy, Mahmoud, Abdel‐Rahman, & Khidr, ; Horn, ; Kapoor & Khanna, ; Kapoor, Smit, & Verighina, ; Levanti et al, ). The alimentary canal morphology in fishes usually shows characteristic variations in relation to diet, habit of feeding, phylogeny, shape of body, and characters that show functional differentiation (Abaurrea, Nuñez, & Ostos, ; Anderson, ; Kapoor et al, ; Noaillac‐Depeyre & Gas, ). The digestive system of fishes changed in morphology and function in relation to taxonomy and different feeding habits (Abdulhadi, ).…”

Section: Introductionmentioning

confidence: 99%

The microstructure of buccal cavity and alimentary canal of Siganus rivulatus: Scanning electron microscope study

Sayed

Mahmoud

Essa

2019

Microscopy Res & Technique

View full text Add to dashboard Cite

The microstructure of the oral cavity and alimentary canal of herbivorous fish Siganus rivulatus collected from the Red Sea were investigated by using scanning electron microscope (SEM). The results showed that S. rivulatus has three types of teeth, tri‐cusped, bi‐cusped, and papilliform. A taste bud (Type I) was recorded in the oropharyngeal cavity. Characteristic styles of microridges on the cell's surface inside the buccal cavity were recorded. Also, the distribution of the mucous cells in the lining of the mouth cavity, alimentary canal was observed. Mucosal folds along the distinct parts of alimentary canal, showed characteristic pattern which was complex in the intestinal mucosa. The results concluded that there are characteristic microstructures according to feeding habitat compared with other bony fishes.

show abstract

“…Histological studies of the digestive tract and adjacent structures have been reported for several fish species (Abaurrea et al. 1993; Ostos‐Garrido et al.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural study on the intestine of Senegal sole, Solea senegalensis

2002

View full text Add to dashboard Cite

The intestinal epithelium of Senegal sole, Solea senegalensis Kaup is composed of three main cell types: epithelial, goblet and rodlet. The cytoplasm of columnar epithelial cells – enterocytes – has spherical lipid droplets. The dominant feature throughout the intestinal mucosa was goblet cells filled with numerous mucous droplets of high density. The cytoplasm of the rodlet cells contained peripheral filamentous, pycnotic nuclei, and numerous cytoplasmic inclusions (rodlets), with a very dense cylindrical core surrounded by flocculent material. Some physiological implications related to ultrastructural features of the intestine are also discussed.

show abstract

Ultrastructural study of the Distal part of the intestine of Oncorhynchus mykiss. Absorption of dietary protein

Cited by 10 publications

References 22 publications

A comparative histological and histochemical study of the post‐gastric alimentary canal from three species of pleuronectid, the Atlantic halibut, the yellowtail flounder and the winter flounder

A comparative histological and histochemical study of the post‐gastric alimentary canal from three species of pleuronectid, the Atlantic halibut, the yellowtail flounder and the winter flounder

The microstructure of buccal cavity and alimentary canal of Siganus rivulatus: Scanning electron microscope study

Ultrastructural study on the intestine of Senegal sole, Solea senegalensis

Contact Info

Product

Resources

About