NaCl胁迫对光蜡树幼苗保护酶系统的影响  

Effects of NaCl Stress on the Activity of Cell Defense Enzymes in the Leaves of Fraxinus griffithii

作　　者：张桂菊[1] 吴军[1] 王玉忠 李昳乐[1] 刘建玲[1] 苏金乐[1] 

机构地区：[1]河南农业大学,河南郑州450002 [2]郑州市绿文广场管理处,河南郑州450002

出　　处：《河南农业科学》2007年第9期75-78,共4页Journal of Henan Agricultural Sciences

基　　金：河南省教育厅2006年自然科学研究资助计划项目(2006220003)

摘　　要：以光蜡树幼苗为材料,研究了NaCl胁迫对其保护酶活性的影响。结果显示:随着NaCl处理浓度的升高,丙二醛含量呈上升趋势,超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性均先上升后下降。光蜡树在低浓度NaCl处理下能够维持较高的保护酶活性和较低的膜脂过氧化作用,具有一定的耐盐潜力。Activities of cell defense enzymes in the leaves of Fraxinus griffithii seedlings were studied under salt stress. The results showed that, with the increase of salt content, the content of MDA raised, while the activities of SOD, POD and CAT increased at first and then decreased. In lower NaCl solutions, the activities of cell defense enzymes maitained a higher level and lipid peroxidation a lower level. This suggested that the Fraxinus griffithii seedlings have the potential to survive under NaCl stress.

关 键 词：NACL胁迫 光蜡树 丙二醛 保护酶活性 

分 类 号：S687[农业科学—观赏园艺]