QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by CHU, K. H. Search for Related Content PubMed Articles by CHU, K. H.

Journal of Experimental Biology 123,325-344 (1986)
Published by Company of Biologists 1986

Glucose Transport by the In Vitro Perfused Midgut of the Blue Crab, Callinectes Sapidus

KA HOU CHU ¹

¹ Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA; Department of Biology, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong

1. The midgut of Callinectes sapidus is capable of net transmural glucose absorption.

2. The mucosal glucose influx by the midgut has a sodium-dependent, saturable component and a sodium-independent, non-saturable counterpart.

3. The unidirectional mucosal to serosal flux and the mucosal influx of glucose are depressed by metabolic inhibitors, the presence of mucosal phlorizin or serosal ouabain.

4. The low rate of net transmural glucose flux and the kinetic characteristics of mucosal influx suggest that the midgut does not play an important role in total nutrient absorption.

5. Thin layer chromatographic analysis shows that most of the glucose appears as phosphorylated forms upon entering the midgut, suggesting that the efflux of free glucose across the serosal border requires an active mechanism.

Key words: glucose transport, gut transport, midgut, Callinectes sapidus

Submitted on February 3, 1986

This article has been cited by other articles:

				E. M. Conrad and G. A. Ahearn 3H-L-histidine and 65Zn2+ are cotransported by a dipeptide transport system in intestine of lobster Homarus americanus J. Exp. Biol., January 15, 2005; 208(2): 287 - 296. [Abstract] [Full Text] [PDF]