摘要
以NL-895杨组培苗为材料,研究不同浓度的盐胁迫对其几种抗氧化酶活性的影响。结果表明,在50 mmol/L NaCl处理下其具有较高的耐盐性,能够正常生长。在100 mmol/L NaCl处理下受到一定的氧化胁迫,根对盐胁迫比叶更敏感些;在100 mmol/L NaCl盐胁迫10 d时,根中AsA-POD活性、GR活性和叶中CAT活性含量与对照相比,分别上升了82.62%、36.36%、58.05%;盐胁迫20 d时,两种盐浓度处理下的根中CAT活性变化幅度均大于叶。
In this paper tissue culture plantlets of poplar variety NL-895were used as materials to study effects of different salinities onthe antioxidase activities.The results showed that the plantlets treated with50mmol/L NaCl had relatively high salt tolerance and couldgrow normally.Those treated with100mmol/L NaCl suffered some oxidative stress with the roots being more sensitive to salt stress thanthe leaves;when salt stressed with100mmol/L NaCl for10d,the active contents of AsA-POD and GR in the roots and the active contentsof CAT in the leaves were82.62%,36.36%and58.05%higher than those of the control group respectively;when salt-stressed for20d,the rangeabilities of CAT in the roots were higher than those in the leaves in the two salinities.
作者
周思言
ZHOU Siyan(Agricultural Cadre School of Xiangshui County, Yancheng 224600, Jiangsu, China)
出处
《安徽林业科技》
2016年第6期17-20,共4页
Anhui Forestry Science and Technology
关键词
杨树组培苗
盐胁迫
氧化胁迫
抗氧化酶
耐盐性
Poplar tissue culture plantlets
Salt stress
Oxidative stress
Antioxidase
Salt tolerance