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Selenium reduces cadmium accumulation and alleviates cadmium-induced quality degradation in tobacco

Author

Listed:
  • W.X. Liu

    (Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou, P.R. China)

  • X. Feng

    (Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou, P.R. China)

  • S. Shang

    (Guizhou Tobacco Science Institute, Guiyang, P.R. China)

  • G. Zhang

    (Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou, P.R. China)

  • F.B. Wu

    (Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou, P.R. China)

Abstract

A greenhouse pot experiment was conducted using two contrasting tobacco cultivars Guiyan1 (Cd-sensitive) and Yunyan2 (Cd-tolerant) to evaluate the effect of external selenium (Se) on Cd-induced degradation of tobacco quality. Results showed that 3 mg/kg Cd reduced K, Mg, Mn, and Zn contents, but increased Cd, P, Ca, Fe contents in both cultivars. Addition of Se in Cd solution (Cd + Se) dramatically alleviated Cd-deteriorate effects on tobacco quality, markedly reduced Cd concentration, but increased Se and K contents in tobacco leaves compared with Cd alone treatment. Exogenous Se counteracted Cd-induced alterations in carbohydrate, e.g. it significantly depressed Cd-induced increase in total/reducing sugar, and sucrose contents, but elevated the reduced starch content. Furthermore, Se significantly depressed the elevated ratios in reducing sugar/total nitrogen, total sugar/total protein and reducing sugar/nicotine, but elevated total nitrogen/nicotine, which returned near to their control levels.

Suggested Citation

  • W.X. Liu & X. Feng & S. Shang & G. Zhang & F.B. Wu, 2015. "Selenium reduces cadmium accumulation and alleviates cadmium-induced quality degradation in tobacco," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(10), pages 444-450.
    • Handle: RePEc:caa:jnlpse:v:61:y:2015:i:10:id:397-2015-pse
    DOI: 10.17221/397/2015-PSE
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