两种木麻黄变异类型的抗盐性比较  

Salt Resistance Characteristics in Two Forms of Casuarina equisetifolia

作　　者：邬金[1] 温国胜[1] 张汝明[1] 陈嘉琦[1] 

机构地区：[1]浙江农林大学 亚热带森林培育国家重点实验室培育基地,浙江临安311300

出　　处：《浙江林业科技》2013年第4期34-38,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省级财政林业专项补助资金资助项目(2010B10);浙江省科技厅重大项目(2006C12003)

摘　　要：选取两种木麻黄变异类型(编号B1和R5)为实验材料,分析不同浓度NaCl胁迫下其抗氧化酶活性(SOD、POD、CAT)变化和MDA含量变化,研究NaCl胁迫下木麻黄的逆境响应机制。结果表明,变异类型B1的SOD活性较R5高,而R5的POD活性和CAT活性都比B1高,B1的MDA含量相较R5高,说明B1叶片细胞内O2-更多,比R5受到伤害更大。综合抗氧化物酶活性和MDA含量测定指标的分析得出,R5比B1更具抗盐性。Two forms of Casuarina equisetifolia from Yuhuan and Taizhou, Zhejiang province were selected as experimental materials, numbered Bland R5, for studying salt resistance mechanism under NaC1 stress. The results showed that superoxide dismutase（SOD） activity and malondialdehyde content ha B1 was higher than that ha R5, while peroxidase（POD） and eatalase（CAT） activity in R5 were higher than that in/31. The experiment indicated that B1 got more content of 02- in leaves than R5, causing more hurt. Comprehensive analysis on activities of antioxidant enzymes and MDA content resulted that R5 had stronger salt tolerance than B1.

关 键 词：木麻黄 抗氧化酶 抗盐性 

分 类 号：S718.43[农业科学—林学]