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. 1969 Sep;44(9):1233–1240. doi: 10.1104/pp.44.9.1233

Adaptation of Barley Roots to Low Oxygen Supply and its Relation to Potassium and Sodium Uptake

M G Pitman a,1
PMCID: PMC396249  PMID: 16657196

Abstract

The uptake of Na+ and K+ by barley seedlings grown on aerated or non-aerated solutions was studied. Plants growing in culture solution took up K+ with high selectivity whether the solution was aerated or not. Roots of plants grown on aerated CaSO4 and transferred to a solution of KCl and NaCl had a lower preference for K+ than roots of plants grown on non-aerated CaSO4. Both kinds of low-salt roots were much less able to discriminate between K+ and Na+ than high-salt roots grown on a culture solution. The different levels of K+ selectivity are suggested to be related to H+ release from the tissue.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bryant A. E. COMPARISON OF ANATOMICAL AND HISTOLOGICAL DIFFERENCES BETWEEN ROOTS OF BARLEY GROWN IN AERATED AND IN NON-AERATED CULTURE SOLUTIONS. Plant Physiol. 1934 Apr;9(2):389–391. doi: 10.1104/pp.9.2.389. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Cram W. J. Compartmentation and exchange of chloride in carrot root tissue. Biochim Biophys Acta. 1968 Nov 5;163(3):339–353. doi: 10.1016/0005-2736(68)90119-3. [DOI] [PubMed] [Google Scholar]
  3. Epstein E. The essential role of calcium in selective cation transport by plant cells. Plant Physiol. 1961 Jul;36(4):437–444. doi: 10.1104/pp.36.4.437. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Hiatt A. J. Relationship of Cell Sap pH to Organic Acid Change During Ion Uptake. Plant Physiol. 1967 Feb;42(2):294–298. doi: 10.1104/pp.42.2.294. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Jackson P. C., Edwards D. G. Cation effects on chloride fluxes and accumulation levels in barley roots. J Gen Physiol. 1966 Sep;50(1):225–241. doi: 10.1085/jgp.50.1.225. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Jackson P. C., Stief K. J. Equilibrium and Ion Exchange Characteristics of Potassium and Sodium Accumulation by Barley Roots. J Gen Physiol. 1965 Mar 1;48(4):601–616. doi: 10.1085/jgp.48.4.601. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Leggett J. E., Gilbert W. A. Localization of the ca-mediated apparent ion selectivity in the cross sectional volume of soybean roots. Plant Physiol. 1967 Dec;42(12):1658–1664. doi: 10.1104/pp.42.12.1658. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Pitman M. G., Saddler H. D. Active sodium and potassium transport in cells of barley roots. Proc Natl Acad Sci U S A. 1967 Jan;57(1):44–49. doi: 10.1073/pnas.57.1.44. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Rains D. W., Epstein E. Sodium absorption by barley roots: its mediation by mechanism 2 of alkali cation transport. Plant Physiol. 1967 Mar;42(3):319–323. doi: 10.1104/pp.42.3.319. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Rains D. W., Epstein E. Sodium absorption by barley roots: role of the dual mechanisms of alkali cation transport. Plant Physiol. 1967 Mar;42(3):314–318. doi: 10.1104/pp.42.3.314. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Rains D. W., Schmid W. E., Epstein E. Absorption of Cations by Roots. Effects of Hydrogen Ions and Essential Role of Calcium. Plant Physiol. 1964 Mar;39(2):274–278. doi: 10.1104/pp.39.2.274. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Siegel S. M., Daly O. Regulation of betacyanin efflux from beet root by poly-L-lysine, ca-ion and other substances. Plant Physiol. 1966 Nov;41(9):1429–1434. doi: 10.1104/pp.41.9.1429. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Vlamis J., Davis A. R. EFFECTS OF OXYGEN TENSION ON CERTAIN PHYSIOLOGICAL RESPONSES OF RICE, BARLEY, AND TOMATO. Plant Physiol. 1944 Jan;19(1):33–51. doi: 10.1104/pp.19.1.33. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Welch R. M., Epstein E. The dual mechanisms of alkali cation absorption by plant cells: their parallel operation across the plasmalemma. Proc Natl Acad Sci U S A. 1968 Oct;61(2):447–453. doi: 10.1073/pnas.61.2.447. [DOI] [PMC free article] [PubMed] [Google Scholar]

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