spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Audsley, N.
Right arrow Articles by Phillips, J. E.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Audsley, N.
Right arrow Articles by Phillips, J. E.

Journal of Experimental Biology, Vol 173, Issue 1 275-288, Copyright © 1992 by Company of Biologists

JOURNAL ARTICLES

ACTIONS OF ION-TRANSPORT PEPTIDE FROM LOCUST CORPUS CARDIACUM ON SEVERAL HINDGUT TRANSPORT PROCESSES

N. Audsley, C. Mcintosh and J. E. Phillips

1. Schistocerca gregaria ion-transport peptide (Scg-ITP), a neuropeptide isolated from locust corpora cardiaca, stimulates ileal Cl- transport (Isc) in a dose-dependent manner and causes increases in Na+, K+ (IK) and fluid reabsorption (Jv) as previously observed with crude extracts of corpus cardiacum and with cyclic AMP. Unlike cyclic AMP, Scg-ITP does not stimulate ileal NH4+ secretion. 2. H+ secretion (JH) in the ileum, which is not affected by cyclic AMP, is almost completely abolished by Scg-ITP. Although ITP may act via cyclic AMP as second messenger to stimulate NaCl, KCl and fluid reabsorption, it apparently acts through a different intracellular pathway to influence JH. 3. Scg-ITP is unlikely to be the chloride transport stimulating hormone previously reported to act on the rectum, because it did not produce a maximum rectal Isc response and had no effect on either rectal Jv (which is Cl--dependent) or IK.


This article has been cited by other articles:


Home page
 J. Exp. Biol.Home page
L. Serrano, G. Blanvillain, D. Soyez, G. Charmantier, E. Grousset, F. Aujoulat, and C. Spanings-Pierrot
Putative involvement of crustacean hyperglycemic hormone isoforms in the neuroendocrine mediation of osmoregulation in the crayfish Astacus leptodactylus
J. Exp. Biol., March 15, 2003; 206(6): 979 - 988.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
J. S. Chung, H. Dircksen, and S. G. Webster
A remarkable, precisely timed release of hyperglycemic hormone from endocrine cells in the gut is associated with ecdysis in the crab Carcinus maenas
PNAS, November 9, 1999; 96(23): 13103 - 13107.
[Abstract] [Full Text] [PDF]

Home page
 J. Exp. Biol.Home page
G. Coast, J Meredith, and J. Phillips
Target organ specificity of major neuropeptide stimulants in locust excretory systems
J. Exp. Biol., January 11, 1999; 202(22): 3195 - 3203.
[Abstract] [PDF]


© The Company of Biologists Ltd 1992