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Hydrogen sulfide alleviated chromium toxicity in wheat


Effects of H2S on seed germination under chromium (Cr) stress were investigated in wheat (Triticum aestivum L.). Under Cr stress, the percentage of germination of wheat seeds decreased, but this decrease could be alleviated by pretreatment with NaHS, an H2S donor, in a dose-dependent manner. Furthermore, NaHS significantly enhanced the activities of amylase, esterase, superoxide dismutase, catalase, ascorbate peroxidase, and guaiacol peroxidase in Cr-stressed germinating seeds, whereas reduced the Cr-induced increase in lipoxygenase activity and over-production of malondialdehyde (MDA) and H2O2, and sustained slightly higher content of endogenous H2S.

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ascorbate peroxidase










reactive oxygen species


superoxide dismutase


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This work was supported by the Great Project of Natural Science Foundation from Anhui Provincial Education Department (ZD200910), and the innovation fund to undergraduate students from Hefei University of Technology (XS0637, 08072).

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Correspondence to H. Zhang.

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The first two authors contributed equally to this paper.

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Zhang, H., Hu, L.Y., Li, P. et al. Hydrogen sulfide alleviated chromium toxicity in wheat. Biol Plant 54, 743–747 (2010).

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Additional key words

  • amylase
  • antioxidative enzymes
  • esterase
  • lipid peroxidation
  • seed germination
  • Triticum aestivum