Medicinal Plant

2012, v.3(10) 30-32+36

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Effects of NaCl Stress on the Scavenging Activity of Limonium sinense Kuntze to Reactive Oxygen Species
Effects of NaCl Stress on the Scavenging Activity of Limonium sinense Kuntze to Reactive Oxygen Species

ZHANG Xia;YIN Hai-bo;CHEN Shi-hua;LI Li-xia;ZHAO Ji-qiang;GUO Shan-li;

摘要(Abstract):

[Objective] To discuss the effects of NaCl stress on the scavenging activity of Limonium sinense Kuntze to reactive oxygen species (ROS). [Method] After L. sinense seedlings were treated by 500mmol/L NaCl, the osmotic potential of leaves, content of MDA, and activities of catalyses (CAT), peroxidase (POD), superoxside dismutase (SOD) were investigated. [Result] The content of MDA maintained a relatively low level, while it reached the maximum value after treatment for 5 days. The antioxidase activities increased first and then decreased, and reduced to the minimum level after treatment for 5 days, which was consistent with the results of MDA content. [Conclusion] Depending on antioxidant enzyme system, L. sinense could scavenge reactive oxygen species, reduce oxidative damage and maintain growth during a short period under NaCl stress.

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基金项目(Foundation): Supported by the Key Science&Technology Brainstorm Project of Shandong Province(2010GNC10937);; the Natural Science Foundation for Youth of Shandong Province(ZR2011 CQ013);; the Initial Foundation for Ph.D of Yantai University(TM09B25,HX10B23)

作者(Author): ZHANG Xia;YIN Hai-bo;CHEN Shi-hua;LI Li-xia;ZHAO Ji-qiang;GUO Shan-li;

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