Crops ›› 2016, Vol. 32 ›› Issue (4): 133-136.doi: 10.16035/j.issn.1001-7283.2016.04.022

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Effects of Selenium Stress on the Physiological Characteristic of Medicago sativa L.

Cui Kefei1,Dai Huiping1,2,3,Zhu Jiani1,Zhang Afang1   

  1. 1 College of Biological Science & Engineering,Shaanxi Sci-Tech University,Hanzhong 723001,Shaanxi,China;
    2 Shaanxi Province Key Laboratory of Bio-resources/Shaanxi Sci-Tech University,Hanzhong 723001,Shaanxi,China
    3 Qinling-Bashan Mountains Bioresources Comprehensive Development,Collaborative Innovation Center,Hanzhong 723001,Shaanxi,China
  • Received:2016-05-26 Revised:2016-06-23 Online:2016-08-15 Published:2018-08-26
  • Contact: Huiping Dai

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Abstract:

In this paper, the effects of selenium (Se) stress on the physiological characteristics of alfalfa were investigated by pot experiments, including soluble protein content, free proline content, O2 .- content and MDA content in different tissues of Medicago sativa L. The results showed that the O2 .- content, MDA content, free proline content and soluble protein content significantly increased when the Se stress increased to 900μM compared with the control (non-Se). After 60 days of Se exposure, the accumulation contents of Se in roots were significantly higher than in leaf and stem. Thus, these results indicated that the alfalfa was a promising remedial potential for the high level of Se contamination soil.

Key words: Selenium, Medicago sativa L., Physiological characteristics

Fig.1

Effects of Se stress on the accumulation of Se in the different tissues of Medicago sativa Different small letters indicate significant difference between treatments (P<0.05),the same below"

Fig.2

Effects of Se stress on the contents of soluble protein in the different tissues of Medicago sativa"

Fig.3

Effects of Se stress on the contents of proline in the different tissues of Medicago sativa"

Fig.4

Effects of Se stress on the contents of O2.- in the different tissues of Medicago sativa"

Fig.5

Effects of Se stress on the contents of MDA in the different tissues of Medicago sativa"

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