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Potato plants bearing a vacuolar Na+/H+ antiporter HvNHX2 from barley are characterized by improved salt tolerance

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Abstract

Two cultivars of potato (Solanum tuberosum L.) were transformed with a barley antiporter gene HvNHX2 driven by the CaMV 35S promoter. The expressed transgene conferred a higher NaCl tolerance to one of the cultivars. Under salt stress, the more salt-tolerant transgenic plants had longer roots, higher dry weight, and suppressed cell expansion as compared to wild-type plants. The salt tolerance of the plants grown in vitro was not accompanied by elevated total sodium in any plant organs tested. Instead, higher potassium was found in roots of transgenic plants. Possible mechanisms of plant salt tolerance are discussed.

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Abbreviations

BA:

benzyladenine

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Authors and Affiliations

  1. Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Shahrekord, Shahrekord, Iran

    F. Bayat, B. Shiran & M. Khodambashi

  2. Russian State Agrarian University-MTAA named after K. A. Timiryazev, Timiryazevskaya ul. 49, Moscow, 127550, Russia

    F. Bayat & D. V. Belyaev

  3. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya ul. 35, Moscow, 127276, Russia

    F. Bayat, D. V. Belyaev, N. O. Yur’eva & G. I. Sobol’kova

  4. Moscow Institute of Physics and Technology, Dolgoprudny, 141700, Russia

    D. V. Belyaev

  5. Department of Agricultural Biotechnology, Agricultural College, University of Tehran, Karaj, 31587-11167, Iran

    H. Alizadeh

  6. All-Russia Institute of Agricultural Biotechnology, Russian Academy of Agricultural Sciences, Timiryazevskaya ul. 42, Moscow, 127550, Russia

    A. V. Babakov

Authors
  1. F. Bayat
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  2. B. Shiran
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  3. D. V. Belyaev
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  4. N. O. Yur’eva
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  5. G. I. Sobol’kova
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  6. H. Alizadeh
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  7. M. Khodambashi
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  8. A. V. Babakov
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Corresponding author

Correspondence to B. Shiran.

Additional information

Original Russian Text © F. Bayat, B. Shiran, D.V. Belyaev, N.O. Yur’eva, G.I. Sobol’kova, H. Alizadeh, M. Khodambashi, A.V. Babakov, 2010, published in Fiziologiya Rastenii, 2010, Vol. 57, No.5, pp. 744–755.

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Bayat, F., Shiran, B., Belyaev, D.V. et al. Potato plants bearing a vacuolar Na+/H+ antiporter HvNHX2 from barley are characterized by improved salt tolerance. Russ J Plant Physiol 57, 696–706 (2010). https://doi.org/10.1134/S1021443710050134

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  • DOI: https://doi.org/10.1134/S1021443710050134

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