摘要
分别用50、100、150、200、250 mM NaCl溶液处理蛋黄木薯幼苗,对不同盐浓度下幼根中超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(APX)和谷胱甘肽还原酶(GR)的表达水平进行分析。结果显示:与对照相比,低浓度NaCl处理(≤100 mM)对蛋黄木薯生长没有明显的抑制作用,幼根中SOD、APX和GR的表达量均有所提高;高浓度NaCl处理时(≥150 mM),SOD和APX的表达水平随盐浓度的上升呈下降趋势,而GR的表达水平呈上升趋势,随着盐浓度的增加,蛋黄木薯生长受抑制程度也增加。
In this paper, Manihotesculenta Crantz. cv. M . South China 9（SC9） seedlings were treated with NaCI solution under concentra- tions of 50,100,150,200,250 mM, and the expressian levels of its superoxide dismutaso （SOD）, asoo/onte perexidase （ APX ） and gluta- thione reductase （GR） were analyzed. The results showed that compared with control, the low NaCl concentrations （ ≤100 mM） had no significant inhibition for the growth of SC9, and the expression levels of SOD, APX and GR were increased; While expression levels of SOD and APX were decreased with the increase of salt concentrations（ ≥150mM）, but GR expression level was increased with high salt concen- tration, and the growth inhibition of SC9 also increased with the increase of salt concentrations.
出处
《西南农业学报》
CSCD
北大核心
2015年第3期1057-1061,共5页
Southwest China Journal of Agricultural Sciences
基金
陈松笔创新创业启动经费
国家自然科学基金面上项目(31271776)
关键词
木薯
NACL处理
抗氧化酶
表达水平
Manihotesculenta Crantz
NaC1 treaunent
Antioxidant enzyme
Expression level
