Effect of silicon addition on the antioxidant enzymes activities of licorice leaves under salt stress
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DOI:10.7606/j.issn.1000-7601.2017.03.27
Key Words: licorice  silicon  salt stress  antioxidant enzyme
Author NameAffiliation
CUI Jia-jia College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China 
ZHANG Xin-hui College of Pharmacy, Ningxia Medical University, Yinchuan 750004, ChinaNingxia Engineering and Technology Research Center of Hui Medicine Modernization, Yinchuan 750004, ChinaNingxia Collaborative Innovation Center of Hui Medicine, Yinchuan 750004, ChinaKey Laboratory of Hui Medicine Modernization, Ministry of Education, Yinchuan 750004, China 
ZHANG En-he College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China 
LI Yue-tong College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China 
ZHOU Da College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China 
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Abstract:
      The experiment was carried out to study the effects of silicon on antioxidant enzymes(SOD, POD, and CAT) and osmolytes content of licorice leaves under NaCl stress by pot experiment. The results showed that the concentration of 0.2 g·kg-1 silicon had the strongest effect increasing the activities of SOD, POD, and CAT, by 37.44%, 26.98%, and 35.16% compared with the control, respectively. For the concentration of 0.6 g·kg-1, MDA was decreased by 35.63%, proline content by 38.15%, while the relative membrane permeability was increased by 17.69%, and the soluble protein content by 36.62%. In conclusion, silicon treatment could alleviate the damage degree of NaCl stress by promoting the antioxidant enzymes activities in licorice leaves.