Effect of long‐term salt stress on antioxidative enzyme activities of NyPa Forage (Distichlis spicata var.yensen‐4a)and tall fescue(Festuca arundinacea Schreb)

摘要：

Salinization plays a major role in soil degradation.It affects 19.5％ of irrigated and 2.1％ of dry agriculture land existing on the globe, including 38.5 million ha that are salt‐affected to various degrees in China (FAO,2000).Na＋ imposes both ionic and osmotic stresses on plants, while the injurious osmotic effects and ionic toxicity lead to the generation of oxidative stress ( Hernandez and Almansa, 2002).To escape from the toxicity of activated oxygen species (AOS), plants have developed a complex antioxidative defense system, including antioxidant enzymes such as ascorbate peroxidase ( APX ), superoxide dismutase (SOD) and catalase (CAT).

关键词： salinization ascorbate peroxidase superoxide dismutase

作者: Yaxiong Jia Xianglin Li Liqiang Wan Feng He

作者单位: Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing,100094,China

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）