Plant physiology, biochemistry and molecular biology

Effects of Cadmium Stress on the Physiological Characteristics of Echinochloa crusgalli

  • CHEN Wei ,
  • JIN Chen-Zhong ,
  • WU Xiao-Feng ,
  • BAI Lian-Yang ,
  • PENG Qiong
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  • (1.Collaborative Innovation Center for Farmland Weeds Control, Hunan University of Humanities, Science and Technology, Loudi 417002, Hunan China; 2.Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan China)

Received date: 2016-05-20

  Revised date: 2016-10-12

  Online published: 2016-09-10

Abstract

The physiological properties under different Cd2+ concentrations (0, 0.3, 0.6, 0.9, 1.5, 3.0 and 6.0 mg穔g-1) were investigated for the potential use of Echinochloa crusgalli as a candidate for phytoremediation of Cd-contaminated soils. In tillering stage, the photosynthesis and antioxidant enzyme activities were increased under 0.3 mg穔g-1 Cd2+ stress, and 0.6, 0.9 mg穔g-1 of Cd2+ stress inhibited photosynthesis, but promoted the antioxidant enzyme activities and MDA content. In tillering stage, antioxidant enzyme activities was improved under 3.0 mg穔g-1 Cd2+ stress, and MDA content increased under 6.0 mg穔g-1 Cd2+ stress. In heading stage, the photosynthesis was inhibited under 0.6 mg穔g-1 and 6.0 mg穔g-1 Cd2+ stress, and the antioxidant enzyme activities were also inhibited under high Cd stress. The proline content was increased under Cd stress, showing the higher resistance of Cd stress.

Cite this article

CHEN Wei , JIN Chen-Zhong , WU Xiao-Feng , BAI Lian-Yang , PENG Qiong . Effects of Cadmium Stress on the Physiological Characteristics of Echinochloa crusgalli[J]. Subtropical Plant Science, 2016 , 45(03) : 207 -211 . DOI: 10.3969/j.issn.1009-7791.2016.03.002

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