Overview

A wealth of information on osmotic and ionic reaulation in Estuarine and Marine Animals has been accumulated over the past decades. Beyond early studies of whole-animal responses to changes in envi- ronmental salinities, efforts have been made later on to identify, to localize and to characterize the organs and structures responsible for the control of the characteristics of the cell's environmental fluid. When considering the problem of cell volume control in animals facing media of fluctuating salinities, we are indeed dealing with two different categories of mechanisms. A first one is concerned with the control of the osmolality of the intracellular fluid, hence with the processes directly implicated in the maintenance of cell volume and shape. They have been extensively described in several recent review papers. The second category includes the processes controllin~ the charac- teristics of the cell's environmental fluid in order to minimize the amplitude of the osmotic shocks the cells may have to cope with upon acclimation to media of changed salinities. They are localized in particular organs and structures : the so-called ""caZt-transporting"" epithelia. Up to now, most of the studies on salt-transportino epithe- lia in estuarine and marine animals used the black box approach, so that little or sometimes nothing is still known on the physiological, the biochemical and the biophysical basis of the transporting mecha- nisms as well as on the structure-function relationships.

Full Product Details

Author:   A. Pequeux ,  R. Gilles ,  L. Bolis
Publisher:   Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
Imprint:   Springer-Verlag Berlin and Heidelberg GmbH & Co. K
Volume:   9
Dimensions:   Width: 17.00cm , Height: 1.20cm , Length: 24.40cm
Weight:   0.415kg
ISBN:  

9783540133537

ISBN 10:   3540133534
Pages:   222
Publication Date:   01 June 1984
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Out of stock  
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Table of Contents

I Physiological and Ultrastructural Aspects of “Salt-Transporting Tissues” Studies.- Homeostatic Function of Integuments and Nephridia in Annelids.- Control of the Extracellular Fluid Osmolality in Crustaceans.- Osmotic and Ionic Regulation in Saline Water Mosquito Larvae.- Chloride Secretion by the Chloride Cells of the Isolated Opercular Epithelium of Marine Fish.- Control of the Blood Osmolarity in Fishes, With Reference to the Functional Anatomy of the Gut.- Transport Properties of Fish Urinary Bladders in Relation to Osmoregulation.- The Contrasting Roles of the Salt Glands, The Integument and Behavior in Osmoregulation of Marine Reptiles.- Regulation of NaCl and Water Absorption in Duck Intestine.- II Biophysical and Biochemical Aspects of “Salt-Transporting Tissues” Studies.- Cellular Energy Metabolism and its Regulation in Gills of Fish and Crustacea.- Regulatory Functions of Na++K+-Atpase in Marine and Estuarine Animals.- Ultrastructural Localization of Na++K+-Atpase in Specialized Membranes of Salt Transporting Cells in Marine Vertebrates.- Models of Salt and Water Flow Across Epithelia: An Evaluation by Electron Probe X-Ray Microanalysis.- Taxonomic Index.

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