Metabolic aspects of the transport of ions by cells and tissues of roots
There is no clear cut viewpoint concerning the mechanism of transport of solutes into and within roots that is applicable to all plants and all solutes. Most attention has been given to ionised species, particularly those that are not incorporated into organic molecules, e.g. K+, Na+, Ca+ + and Cl−. Ions that are rapidly metabolised such as NO 3 − , SO 4 − − and H2PO 4 − give rise to special problems as do uncharged solutes such as sugars that become charged during entry by phosphorylation.
KeywordsSugar Phosphorus Starch Maize Boron
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- 2.Biswas, B. B., Biswas, S., Chakravarky, S. and De, B. P. 1978 A novel metabolic cycle involving myo inositol phosphates during formation and germination of seeds. In: Eisenberg, F. and Wells, W. W. (eds.), Cyclitol and Phosphoinositides, New York, Academic Press.Google Scholar
- 5.Floc’h, J.-Y. and Penot, M. 1976 Etude comparative du transport a longue distance de differents radioelements dans le thalle de Laminaria digitata. C.R. seances Acad, sci., serie D, Paris, 282, 989–992.Google Scholar
- 9.Loughman, B. C., 1978 Metabolic factors and the utilization of phosphorus by plants. In: Porter, R. and Fitzimons, D. W. (eds.), Phosphorus in the environment: its chemistry and biochemistry, pp. 155–174. Amsterdam and New York: Elsevier/Excerpta Medica/North Holland.Google Scholar
- 13.Ullrich, C, Novacky, A., Fischer, E. and Luttge, U. 1978 Driving forces of phosphate transport inLemna gibba, presented at SEB/FESPP Inaugural Meeting, Edinburgh, July 9–14.Google Scholar