Document Detail


Calcium ion triggers rapid morphological oscillation of chloride cells in the mudskipper, Periophthalmus modestus.
MedLine Citation:
PMID:  12122459     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Euryhaline teleosts rapidly regulate their ion flux at the chloride cells on entry to different salinities. The external trigger(s) for the rapid opening and closing of the chloride cell apical surface, the site of salt secretion, were examined in the skin of the mudskipper. With DASPEI (a mitochondrial probe) and Concanavalin-A (an apical surface marker of chloride cells), chloride cells were classified into two groups: those in contact and those not in contact with the external water. The fraction of chloride cells in contact with the water increased dramatically 1.5 h after transfer to seawater, and similarly after transfer to 10 mmol x l(-1) CaCl(2) solution. In comparison, transfer to 1.1 mol x l(-1) mannitol, 0.5 mol x l(-1) NaCl or 50 mmol x l(-1) MgCl(2) resulted in increases of only 40-60% of those in the seawater-transfer group. After return of the fish from 10 mmol x l(-1) CaCl(2) to freshwater, the cells in contact with the water decreased. Environmental Ca(2+) is the trigger for the morphological oscillation of chloride cell apical surface, presumably through modifications in Ca(2+) flux.
Authors:
T Sakamoto; M Ando
Related Documents :
16666949 - Maintenance of low cl concentrations in mesophyll cells of leaf blades of barley seedli...
10617769 - Sodium-potassium-chloride cotransport.
6969089 - Cell volume studies in b-cell leukaemia.
8699159 - Salinity change and cell volume: the response of tissues from the estuarine mussel geuk...
2079109 - Basal and norepinephrine-stimulated lipolysis in differently sized human isolated adipo...
1093169 - The relationship between enzyme activity, cell geometry, and fitness in saccharomyces c...
22161829 - Mammary gland stem cells: current status and future challenges.
16200199 - Endoplasmic reticulum stress: cell life and death decisions.
21210039 - Design and application of esterase-labile sulfonate protecting groups.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2002-06-19
Journal Detail:
Title:  Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology     Volume:  172     ISSN:  0174-1578     ISO Abbreviation:  J. Comp. Physiol. B, Biochem. Syst. Environ. Physiol.     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-07-17     Completed Date:  2003-02-03     Revised Date:  2009-06-08    
Medline Journal Info:
Nlm Unique ID:  8413200     Medline TA:  J Comp Physiol B     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  435-9     Citation Subset:  IM    
Affiliation:
Faculty of Integrated Arts and Sciences, Room C310, Hiroshima University, 1-7-1 Kagamiyama, Higashi-hiroshima 739-8521, Japan. tatsuyas@hiroshima-u.ac.jp
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Calcium / metabolism*
Calcium Chloride / pharmacology
Chlorides / metabolism*
Epithelial Cells / drug effects,  metabolism
Female
Fishes / physiology*
Fresh Water
Gills / cytology,  metabolism
Male
Seawater
Water-Electrolyte Balance / physiology*
Chemical
Reg. No./Substance:
0/Chlorides; 10043-52-4/Calcium Chloride; 7440-70-2/Calcium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Intermittent fasting during winter and spring affects body composition and reproduction of a migrato...
Next Document:  Effects of nitric oxide synthase inhibitors on the febrile response to muramyl dipeptide and lipopol...