CALCIUM TRANSPORT IN FISH GILLS AND INTESTINE
نویسندگان
چکیده
منابع مشابه
Short Communication Magnesium Transport in Fish Intestine
BY J. A. VAN DER VELDEN-, J. A. GROOT, G. FLIK, P. POLAK AND Z. I. KOLAR Department of Radiochemistry, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands, Department of Animal Physiology, Faculty of Science, University of Nijmegen, Nijmegen, The Netherlands, Department of Experimental Zoology, Faculty of Biology, University of Amsterdam, ...
متن کاملVectorial Transcellular Calcium Transport in Intestine: Integration of Current Models
In spite of decades of research, the exact subcellular pathway for calcium transport in intestine has not been elucidated. In this mini-review, we present three models for vectorial movement of calcium across the cell: facilitated (cytoplasmic) diffusion, vesicular/lysosomal transport, and tunneling through the endoplasmic reticulum compartment. We conclude by offering one way to integrate elem...
متن کاملOptimal lamellar arrangement in fish gills.
Fish respire through gills, which have evolved to extract aqueous oxygen. Fish gills consist of filaments with well-ordered lamellar structures, which play a role in maximizing oxygen diffusion. It is interesting that when we anatomically observe the gills of various fish species, gill interlamellar distances (d) vary little among them, despite large variations in body mass (Mb). Noting that th...
متن کاملElectron probe analysis of calcium transport by small intestine
Calcium transport in small intestine of rat and chick has been studied at the cellular level using the electron probe X-ray microanalyzer. Tissues were examined directly after removal as well as after incubation in a calcium solution. In both preparations, discrete calcium localizations were found associated with intracellular and extracellular goblet cell mucus. The in vitro preparations showe...
متن کاملTranscellular Intestinal Calcium Transport in Freshwater and Seawater Fish and Its Dependence on Sodium/calcium Exchange
Transepithelial calcium uptake and transcellular calcium uptake mechanisms were compared in the proximal intestine of freshwaterand seawater-adapted tilapia, Oreochromis mossambicus. Stripped intestinal epithelium of seawater fish showed a higher paracellular permeability to calcium in vitro. Net transepithelial calcium uptake was 71% lower, reflecting a physiological response to the increased ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1993
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.184.1.17