The distribution and function of mucous cells and their secretions in the alimentary tract of Arrhamphus sclerolepis krefftii

Tibbetts, I. R. (1997) The distribution and function of mucous cells and their secretions in the alimentary tract of Arrhamphus sclerolepis krefftii. Journal of Fish Biology, 50 4: 809-820. doi:10.1111/j.1095-8649.1997.tb01974.x


Author Tibbetts, I. R.
Title The distribution and function of mucous cells and their secretions in the alimentary tract of Arrhamphus sclerolepis krefftii
Formatted title
The distribution and function of mucous cells and their secretions in the alimentary tract of Arrhamphus sclerolepis krefftii
Journal name Journal of Fish Biology   Check publisher's open access policy
ISSN 0022-1112
1095-8649
Publication date 1997-04-01
Sub-type Article (original research)
DOI 10.1111/j.1095-8649.1997.tb01974.x
Volume 50
Issue 4
Start page 809
End page 820
Total pages 12
Language eng
Subject 0603 Evolutionary Biology
060112 Structural Biology (incl. Macromolecular Modelling)
Abstract The mucosa of the mouth, pharynx, oesophagus and rectum of Arrhamphus sclerolepis krefftii contain saccular mucous cells and the lining of the intestinal mucosa contains goblet mucous cells. Saccular mucous cells in the buccal epithelium are present in relatively low densities and contain acidic and neutral glycoprotein-secreting cells in an approximately 1:1 ratio. The saccular mucous cells in the mucosa of the pharynx, oesophagus and rectum are abundant and contain acidic glycoprotein which consists principally of sialomucin with traces of sulphomucin distributed around the periphery of the mucous vacuoles. Goblet cells in the intestinal mucosa contain neutral glycoprotein. Mechanically digested plant material within the lumen of the gut is bound by a sheath of acidic glycoprotein which is in contact with the intestinal mucosa. From these observations and with information on the known properties of acidic glycoproteins, a novel mechanism for the involvement of mucus in the extraction of nutrients from plant material mechanically digested by fish is proposed.
Keyword gut morphology
pharyngeal jaw apparatus
herbivory
digestion
mucus
Hemiramphidae
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Ecology Centre Publications
Centre for Marine Studies Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 72 times in Thomson Reuters Web of Science Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 18 Feb 2010, 19:58:35 EST by Laura McTaggart on behalf of Faculty of Science