Summary
Generally, Ca uptakes were higher and K uptakes lower for excised vetch roots as opposed to those of barley under similar conditions. This behavior was considered to be related to root ion exchange properties and Dorman theory, since the ion exchange capacity of vetch roots is considerably higher than that of barley. Metabolic inhibitors were very effective against K uptakes in contrast to Ca uptakes by both vetch and barley indicating that Ca uptake was primarily non-metabolic under these experimental conditions. The rapidity with which most of the Ca previously taken up was removed by a Ba solution suggests that, for short time periods, a quasi-reversible ion exchange relationship existed between Ba and Ca. Fundamental differences between Ca and K washout curves are attributed to this primarily non-metabolic process. It was concluded that uptake of Ca by excised vetch and barley roots is basically of a surface nature.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Arnon, D. I., Fratzke, W. E. and Johnson, C. M., Hydrogen ion concentration in relation to absorption of inorganic nutrients by higher plants. Plant Physiol.17, 515–524 (1942).
Asher, C. J. and Ozanne, P. G., The cation exchange capacity of plant roots and its relationship to the uptake of insoluble nutrients. Aust. J. Agric. Res.12, 755–766 (1961).
Beeson, K. C., Mineral composition of crops. U.S. Dep. Agric. Misc. Publ.369, 93–117 (1941).
Drake, Mack, Vengris, J. and Colby, W. G., Cation-exchange capacity of plant roots. Soil Sci.72, 139–147 (1951).
Elgabaly, M. M. and Wiklander, L., Effect of exchange capacity of clay mineral and acidoid content of plant on uptake of sodium and calcium by excised barley and pea roots. Soil Sci.67, 419–424 (1949).
Emerson, Paul and Barton, John, The potassium-nitrogen ratio of red clover as influenced by potassic fertilizers. J. Am. Soc. Agron.14, 182–192 (1922).
Handley, Raymond and Overstreet, Roy, Uptake of calcium and chlorine in roots ofZea mays. Plant Physiol.36, 766–769 (1961).
Hoagland, D. R. and Broyer, T. C., General nature of the process of salt accumulation by roots with description of experimental methods. Plant Physiol.11, 471–507 (1936).
Hodges, T. K. and Hanson, J. B., Calcium accumulation by maize mitochondria. Plant Physiol.40, 101–109 (1966).
Jacobson, Louis, Moore, D. P. and Hannapel, R. J., Role of calcium in absorption of monovalent cations. Plant Physiol.35, 352–358 (1960).
Leggett, James E. and Gilbert, W. A., Localization of the Ca-mediated apparention selectivity in the cross-sectional volume of soybean roots. Plant Physiol.42, 1658–1664 (1967).
Maas, E. V., Calcium uptake by excised maize roots and interactions with alkali cations. Plant Physiol.44, 985–989 (1969).
Mattson, Saute, Eriksson, E., Vahtras, K. and Williams, E. G., Phosphate relationships of soil and plant: I. Membrane equilibria and phosphate uptake. Ann. Agric. Coll. Sweden16, 457–484 (1949).
Moore, David P., Jacobson, L. and Overstreet, R., Uptake of calcium by excised barley roots. Plant Physiol.36, 53–57 (1961).
Moore, David P., Mason, B. J. and Maas, E. V., Accumulation of calcium in exudate in individual barley roots. Plant Physiol.40, 641–644 (1965).
Nicholas, D. J. D., Inorganic nutrient nutrition of microorganisms.In Plant Physiology3, 402–408. F. C. Steward, Ed., Academic Press, N.Y. (1963).
Viets, Frank G., Jr., Calcium and other polyvalent cations as accelerators of ion accumulation by excised barley roots. Plant Physiol. 19, 466–480 (1944).
Volz, M. G. and Jacobson, L., A specific Ca requirement for potassium uptake by excised vetch roots. Plant and Soil41, 647–659 (1974).
Williams, D. E. and Coleman, N. T., Cation exchange properties of plant root surfaces. Plant and Soil2, 243–246 (1950).
Wyn Jones, R. G. and Lunt, O. R., The function of calcium in plants. Bot. Rev.33, 407–426 (1967).
Author information
Authors and Affiliations
Additional information
Senior author currently Assistant Plant Physiologist at the Connecticut Agricultural Experiment Station, New Haven, CT, 06504.
Rights and permissions
About this article
Cite this article
Volz, M.G., Jacobson, L. Nature and magnitude of calcium uptake by excised roots of Vetch and Barley. Plant Soil 46, 79–91 (1977). https://doi.org/10.1007/BF00693115
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00693115