Osmoregulation and Ionic Regulation in Hydra
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چکیده
منابع مشابه
Protein tyrosine phosphorylation is involved in osmoregulation of ionic conductances.
Using the human Intestine 407 cell line as a model, we investigated a possible role for tyrosine kinase(s) in regulating the ion efflux pathways induced by hyposmotic stimulation (regulatory volume decrease, RVD). Pretreatment of 125I(-)-and 86Rb(+)-loaded cells with the phosphotyrosine phosphatase inhibitor sodium orthovanadate (200 microM) potentiated isotope efflux triggered by mild hypotoni...
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In a previous paper (Webster & Wolpert, 1966 a) it was shown that during regulation the time required for the determination of the dominant region, the hypostome, was dependent on the original position of the hypostome-forming region on the linear axis. Hypostome determination occurred more quickly from distal than from proximal regions, suggesting an axial gradient. As Spiegelman (1945) has po...
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Fish, 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 cells in mammals. Given the advantages in terms of genetic database availability and manipulation, zebrafish is an emerging model for research in...
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Certain key enzymes of alternative pathways of glucose metabolism, of amino acid metabolism and of redox systems have been measured in hydra and this profile compared with mammalian differentiated tissues with a view to locating pathways of specific importance in hydra. There was a marked constant proportionality in the major part of the enzymes investigated, the profile suggested a metabolic p...
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preparation. Moreover, the strangeness of modern algebra is likely to wear off rapidly in the years ahead. Some of the contents of the first chapter, which is on set theory, are already included in the curriculum of grade schools, the earliest introduction often being made at the kindergarten level. For this and other reasons biologists should take the book seriously. This book is an excellent ...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1955
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.32.2.423