Back to Search
Start Over
Comparative histochemical analysis of intestinal glycoconjugates in the blunthead pufferfish Sphoeroides pachygaster and grey triggerfish Balistes capriscus (Teleostei: Tetraodontiformes)
- Source :
- Journal of fish biology. 94(1)
- Publication Year :
- 2018
-
Abstract
- The localization of intestinal glycoconjugates of the blunthead pufferfish Sphoeroides pachygaster and the grey triggerfish Balistes capriscus from the north-western Ionian Sea was analysed by histochemical methods (PAS, AB pH 2.5, HID) and lectin binding experiments (WGA, LFA, SBA, sialidase-SBA, PNA, sialidase-PNA, ConA, AAA, UEA-I, LTA) to assess how evolutionary loss of a functional stomach in S. pachygaster affects intestinal secretions relative to the B. capriscus, which retains the plesiomorphic gastric condition. Sphoeroides pachygaster had a lower content of acid mucins but more complex sialylation patterns than B. capriscus. GalNAc and GlcNAc residuals were present in both, but GalNAc residuals in S. pachygaster were subterminal to sialic acid. Balistes capriscus lacked galactosylated residuals and its enterocytes had a glycocalyx that differed in composition between the small intestine and the rectum and was missing from S. pachygaster. Functional and ecological implications of these findings are discussed.
- Subjects :
- 0106 biological sciences
Glycoconjugate
Grey triggerfish
Zoology
Aquatic Science
010603 evolutionary biology
01 natural sciences
Tetraodontiformes
chemistry.chemical_compound
Lectins
medicine
Animals
Intestinal Mucosa
Ecology, Evolution, Behavior and Systematics
chemistry.chemical_classification
Teleostei
biology
Balistes
010604 marine biology & hydrobiology
Mucin
biology.organism_classification
Biological Evolution
Small intestine
Sialic acid
carbohydrates (lipids)
medicine.anatomical_structure
chemistry
Glycoconjugates
Subjects
Details
- ISSN :
- 10958649
- Volume :
- 94
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of fish biology
- Accession number :
- edsair.doi.dedup.....7e9bfc497b5ad765c397daf88d42d5e6