Summary
Cation-exchange capacity (C.E.C.), pectin, respiration, and nitrogen content have been measured in successive segments of leek roots over a distance of 140 mm from the root tip. All are highest at the root tip and decrease with increasing distance from the root tip.
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Literature
Crooke, W. M., Effect of heavy-metal toxicity on the cation-exchange capacity of plant roots. Soil Sci.86, 231–240 (1958).
Crooke, W. M., Knight, A. H., and MacDonald, I. R., Cation-exchange properties and pectin content of storage tissue disks. Plant and Soil13, 55–67 (1960).
Fuller, K. W., Changes in the cell-wall components of the bean root during development. Biochem. J.70, 18–19 P (1958).
Hanson, J. B. and Bonner, J., The relationship between salt and water uptake in Jerusalem artichoke tuber tissue. Am. J. Botany41, 702–710 (1954).
Keller, P. and Deuel, H., Kationenaustauschkapazität und Pektingehalt von Pflanzenwürzeln. Z. Pflanzenernähr. Düng. u. Bodenk.79, 119–131 (1957).
Kramer, P. J. and Wiebe, H. H., Longitudinal gradients of P32 absorption in roots. Plant Physiol.27, 661–674 (1952).
Mattson, S., Erikson, E., Vahtras, K., and Williams, E. G., Phosphate relationships of soil and plant. I. Membrane equilibria and phosphate uptake. Lantbrukshögskol. Ann.16, 457–484 (1949).
Norris, W. E., Harber, E. J., and Butler, J. E., Cellular respiration in onion root tips. Botan. Gaz.120, 131–137 (1959).
Tracey, M. V., A manometric method for the estimation of milligram quantities of uronic acids. Biochem. J.43, 185–189 (1948).
Wilson, C. M. and Skoog, F., Indole-acetic acid induced changes in uronide fractions and growth of excised tobacco pith tissue. Physiol. Plantarum7, 204–211 (1954).
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Crooke, W.M., Knight, A.H. & Macdonald, I.R. Cation-exchange capacity and pectin gradients in leek root segments. Plant Soil 13, 123–127 (1960). https://doi.org/10.1007/BF01394108
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DOI: https://doi.org/10.1007/BF01394108