Effect of exogenous nitric oxide donor on lipid peroxidation and antioxidant system in needles of Taxus chinensis var. mairei seeding

摘要：

Taxus chinensis var. mairei was used as test material, exogenous nitric oxide (NO) fumigation treatment with different concentration (0,0.01,0.1,0.5 or 1 mM) of sodium nitrop russide (SNP), a donor for exogenous NO, was used to study the effects of NO on the active oxygen metabolism index of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD), Hydrogen peroxide (H2O2) and malondialdehyde (MDA) in Taxus chinensis var. mairei. The results showed that low concentration of exogenous NO treatment increased the activities of the protective enzyme, such as SOD, CAT, POD and APX of Taxus chinensis var. mairei leaves, reduced the content of H2O2, and inhibit the increase of MDA in the first three days. NO fumigation treatment enhanced the antioxidant ability of Taxus chinensis var. mairei, prevented lipid membrane peroxidation.

作者: Dewen Li Xiaoxue Wei Jinghua Yu Yuangang Zu

作者单位: Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University,Harbin 150040, China Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China

会议类型: 国际会议

会议名称: 2011 International Conference on Environmental Biotechnology and Materials Engineering(2011年环境生物技术与材料工程国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 427-431

在线出版日期: 2011-03-26（万方平台首次上网日期，不代表论文的发表时间）