ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary In excised barley roots the presence of either Ca or Mg reduces the additional amount of Na taken up within the first few hours after immersion in a Na-solution, presumably by blocking the free penetration of Na through the outer cell barrier. In contrast, only Ca is effective in shifting the ratio in which Rb and Na are absorbed from a mixture of the two ions, the shift favouring Rb. Therefore, a direct although still unexplained action of Ca on the system involved in the absorption of monovalent cations, independent of effects resulting from its influence on cell permeability, is advocated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01349188
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