Results 221 to 230 of about 50,684 (286)
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Comprehensive Physiology, 2014
AbstractThe article discusses advances in osmoregulation and excretion with emphasis on how multicellular animals in different osmotic environments regulate their milieu intérieur. Mechanisms of energy transformations in animal osmoregulation are dealt with in biophysical terms with respect to water and ion exchange across biological membranes and ...
Larsen, Erik Hviid +6 more
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AbstractThe article discusses advances in osmoregulation and excretion with emphasis on how multicellular animals in different osmotic environments regulate their milieu intérieur. Mechanisms of energy transformations in animal osmoregulation are dealt with in biophysical terms with respect to water and ion exchange across biological membranes and ...
Larsen, Erik Hviid +6 more
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Fish Physiology and Biochemistry, 2021
In most fish exhibiting external fertilization, spermatozoa become motile after release into water, triggered by differences between intracellular and extracellular conditions such as osmotic pressure, ion composition, and pH. The rapid change in osmolarity initiating spermatozoon motility induces osmotic pressure, resulting in active water movement ...
Fabio Herrera +2 more
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In most fish exhibiting external fertilization, spermatozoa become motile after release into water, triggered by differences between intracellular and extracellular conditions such as osmotic pressure, ion composition, and pH. The rapid change in osmolarity initiating spermatozoon motility induces osmotic pressure, resulting in active water movement ...
Fabio Herrera +2 more
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1980
Various aspects of the involvement of ions in osmoregulation (turgor regulation, volume regulation) have been reviewed recently by Bisson and Gutknecht (1979), Cram (1976), Flowers et al. (1977), Hellebust (1976), Osmond (1979) and by Pitman and Cram (1977).
J A, Raven, F A, Smith, S E, Smith
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Various aspects of the involvement of ions in osmoregulation (turgor regulation, volume regulation) have been reviewed recently by Bisson and Gutknecht (1979), Cram (1976), Flowers et al. (1977), Hellebust (1976), Osmond (1979) and by Pitman and Cram (1977).
J A, Raven, F A, Smith, S E, Smith
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1980
For the purposes of this article, osmoregulation will be defined as the maintenance of approximately constant cell volume and turgor pressure in the face of changing water potential. Microorganisms must accomodate the entire range of environmental water potential whereas the range is narrowed for the cells of healthy higher plants and animals by ...
A D, Brown, M, Edgley
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For the purposes of this article, osmoregulation will be defined as the maintenance of approximately constant cell volume and turgor pressure in the face of changing water potential. Microorganisms must accomodate the entire range of environmental water potential whereas the range is narrowed for the cells of healthy higher plants and animals by ...
A D, Brown, M, Edgley
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Thermodynamics and Osmoregulation
Nature, 1961DURING a recent meeting concerning renal function one of the speakers suggested that the reason for the high metabolic rate of the mammalian kidney might be further investigated since very little energy seems to be used in forming the urine. The allusion was to a computation by Borsook and Winegarten1 showing that the thermodynamic efficiency of the ...
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Osmoregulation in zebrafish: ion transport mechanisms and functional regulation
EXCLI Journal : Experimental and Clinical Sciences, 2015Fish, like mammals, have to maintain their body fluid ionic and osmotic homeostasis through sophisticated iono-/osmoregulation mechanisms, which are conducted mainly by ionocytes of the gill (the skin in embryonic stages), instead of the renal tubular ...
Ying-Jey Guh, Chia-Hao Lin, P. Hwang
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Molecular Biology of Osmoregulation
Science, 1984The drought of 1983 resulted in some 10 billion dollars in agricultural losses and has focused attention on the vulnerability of our major crops to this devastating form of environmental stress. This article is concerned with the molecular biology of a new class of genes, called osm (osmotic tolerance) genes, that ...
D, Le Rudulier +4 more
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Osmoreceptors, Osmoreception, and Osmoregulation
Frontiers in Neuroendocrinology, 1994Mammals have evolved sophisticated behavioral and physiological responses to oppose changes in the osmolality of their extracellular fluid. The behavioral approach consists of regulating the intake of salt and water through changes in sodium appetite and thirst.
Bourque, Charles +2 more
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Osmoregulation in the Periplasm
2014The only periplasmic components whose synthesis was found to be induced by low osmotic pressure in various bacterial species are osmoregulated periplasmic glucans (OPGs). OPG structures found in different bacterial species share several common characteristics: (i) D-glucose is the only constituent sugar; (ii) glucose units are linked, at least ...
Bohin, Jean-Pierre, Lacroix, Jean-Marie
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