The Turbo Reductase in Plant Plasma Membranes

  • H. F. Bienfait
Part of the NATO ASI Series book series (NSSA, volume 7)


Plants get hold of the necessary inor9nic constituents by absorption from the soil. Ions like K+, Mg2+, NO3 - are normally present in the soil solution. However, in normal soils, iron is only present at very low concentrations. Ferric is precipitated by OH- and can attain levels above 1 µM only at pH values below 3. In the presence of oxygen and organic matter, ferrous is rapidly oxidized to ferric. In water culture, plants need soluble iron concentrations (realized by chelation with compounds like EDTA) around 1 µM (Lindsay and Schwab, 1982).


Helianthus Annuus Ferric Salt Plant Plasma Membrane Ferric Chelate Ferric Reduce Activity 


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  1. Bienfait, H.F., 1985, Regulated redox processes at the plasmalemma of plant cells and their function in iron uptake. J. Bioenerg. Biomembr., 17: 73.Google Scholar
  2. Bienfait, H.F., 1988, Proteins under the control of the FER gene for Fe efficiency. (Subm. to Plant Physiol.)Google Scholar
  3. Bienfait, H.F., Bino, R.J., Van der Bliek, A.M., Duivenvoorden, J.F., and Fontaine, J.M., 1983, Characterization of ferric reducing activity in roots of Fe-deficient Phaseolus vulgaris. Physiol. Plantarum 59: 196.Google Scholar
  4. Bienfait, H.F., De Weger, L.A., and Kramer, D., 1987, Control of development of iron-efficiency reactions in potato as a response to iron deficiency is located in the roots. Plant Physiol., 83: 244.PubMedCrossRefGoogle Scholar
  5. Bienfait, H.F., and Lüttge, U., 1988, On the function of two redox systems that can transfer electrons across the plasma membrane, Plant Physiol Biochem (in press).Google Scholar
  6. Brown, J.C., Chaney, R.L., and Ambler, J.E., 1973, A new tomato mutant inefficient in the transport of iron. Physiol. Plantarum 25: 48.Google Scholar
  7. Cakmak, I., Van de Wetering, D.A.M., Marschner, H. and Bienfait, H.F., 1987, Involvement of superoxide radical in extracellular ferric reduction by iron-deficient bean roots. Plant Physiol. 85: 310.PubMedCrossRefGoogle Scholar
  8. Chaney, R.L., Brown, J.C., and Tiffin, L.O., 1972, Obligatory reduction of ferric chelates in iron uptake by soybeans. Plant Physiol. 50:208.Google Scholar
  9. Kramer, D., Rómheld, V., Landsberg, E., and Marschner, H., 1980, Induction of transfer cell formation by iron deficiency in the root epidermis of Helianthus annuus L., Planta 147: 335.CrossRefGoogle Scholar
  10. Landsberg, E.C., 1986, Function of rhizodermal transfer cells in the Fe stress response mechanism of Capsicum annuum L. Plant Physiol. 82: 511.PubMedCrossRefGoogle Scholar
  11. Lindsay, W.L., and Schwab, A.P., 1982, The chemistry of iron in soils and its availability to plants. J. Plant Nutr. 5: 821.CrossRefGoogle Scholar
  12. Lubberding, H.J., De Graaf, F.H.J.M., and Bienfait, H.F., 1988, Ferric reducing activity in roots of iron-deficient Phaseolus vulgaris: source of reducing equivalents. Biochem. Physiol. Pflanzen (in press).Google Scholar
  13. Lúttge, U., and Clarkson, D.T., 1985, Mineral nutrition: plasmalemma and tonoplanst redox activities, in: ‘Progress in Botany’, Vol 47, Springer, Berlin, p 73.CrossRefGoogle Scholar
  14. Rómheld, V., and Marschner, H., 1986, Mobilization of iron in the rhizosphere of different plant species. Adv.Plant Nutr., 2: 155.Google Scholar
  15. Sijmons, P.C., and Bienfait, H.F., 1986, Development of FeIII reduction activity and H* extrusion during growth of iron-deficient bean plants in a rhizostat. Biochem. Physiol. Pflanzen 181: 283. Google Scholar
  16. Sijmons, P.C., Van den Briel, W., and Bienfait, H.F., 1984, Cytosolic NADPH is the electron donor for extracellular FeIII reduction in iron-deficient bean roots. Plant Physiol. 74: 219.CrossRefGoogle Scholar
  17. Takagi, S., Nomoto, K. and Takemoto T., 1984, Physiological aspect of mugineic acid, a possible phytosiderophore of gramineceous plants. J. Plant Nutr. 7: 469.CrossRefGoogle Scholar
  18. Wann, E.V., and Hills, W.A., 1973, The genetics of boron and iron transport in the tomato. J.Heredity, 64: 370.Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • H. F. Bienfait
    • 1
  1. 1.Oudegracht 285 bisUtrechtThe Netherlands

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