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Molybdenum application enhances adaptation of crested wheatgrass to salinity stress

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Abstract

Crested wheatgrass (Agropyron cristatum) is a novel halophyte crop for sustainable agriculture in Northern Kazakhstan. This study investigated the effect of molybdenum (Mo) as molybdate (Na2MoO4·2H2O) and its chemical antagonist tungsten (W) as tungstate (Na2WO4·2H2O) on plant response to salinity treatment. The results showed that the treatment of A. cristatum with Mo significantly improved plant health, as opposed to the W application, which negatively correlated with root and shoot development. Indeed, Mo prevented oxidative damage to plant tissues subjected to salinity stress through increased activities of the three Mo-containing enzymes, nitrate reductase, aldehyde oxidase and xanthine dehydrogenase. Contrarily, treatment with tungsten negatively affected these enzymes’ activities, resulting in increased sensitivity to salt stress. Hence, our results suggested that the Mo-treatment might play an important role in the process of halophyte plant A. cristatum adaptation to salt stress.

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Acknowledgments

This research was supported by Kazakhstan Grant National Program 2012–2014. The authors gratefully acknowledge the funding provided by Ministry of Education and Science of the Republic of Kazakhstan within the bounds of the budgetary program 055 «Scientific and/or technical activity» and subprogram 101 «Grant financing of scientific researches». The authors would like to thank the A.I. Baraev Research and Production Center of Grain Farming (Kazakhstan, Akmola region, Shortandy) for providing the seeds of crested wheatgrass.

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  1. Scientific Research Institute for Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan

    Olga N. Babenko & Zerekbay A. Alikulov

  2. French Associates Institute for Agriculture and Biotechnology of Drylands, J. Blaustein Institutes for Desert Research, Ben-Gurion University, Sede Boqer Campus, Be’er Sheva, Israel

    Galina Brychkova & Moshe Sagi

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  1. Olga N. Babenko
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Correspondence to Galina Brychkova.

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Babenko, O.N., Brychkova, G., Sagi, M. et al. Molybdenum application enhances adaptation of crested wheatgrass to salinity stress. Acta Physiol Plant 37, 14 (2015). https://doi.org/10.1007/s11738-014-1757-8

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