节点文献
NaCl和Na2CO3胁迫对甘草幼苗膜质过氧化作用的影响
Effects of NaCl and Na2CO3 Stresses on Lipid Peroxidation in Glycyrrhiza uralensis Fisch
【摘要】 以沙基培养的甘草幼苗为材料,研究不同浓度NaCl和Na2CO3胁迫对其膜质过氧化作用和保护酶活性的影响。结果表明,随盐处理浓度的升高,膜透性、MDA含量呈现上升趋势、POD和SOD两种保护酶的活性先上升后下降。在相同[Na+]胁迫强度下,碱胁迫下的胁变反应均比盐胁迫强烈。
【Abstract】 Lipid peroxidation and activity of defense enzymes in sand-cultured seedlings of Glycyrrhiza uralensis Fisch were studied under stress with different concentration of NaCl and Na2CO3.The results showed that with the increase of salt contents,the membrane permeability and the content of MDA increase,the activity of two kinds of defensive enzyme POD and SOD increased at first and then declined later.Under the same concentration of Na+,the reaction of alkaline stress was more seriously than that of the saline stress.
【关键词】 甘草;
盐胁迫;
碱胁迫;
膜质过氧化;
保护酶活性;
【Key words】 Glycyrrhiza uralensis Fisch; saline stress; alkaline stress; lipid peroxidation; activity of defense enzymes;
【Key words】 Glycyrrhiza uralensis Fisch; saline stress; alkaline stress; lipid peroxidation; activity of defense enzymes;
【基金】 国家自然科学基金项目(30671491)
- 【文献出处】 湖北农业科学 ,Hubei Agricultural Sciences , 编辑部邮箱 ,2009年10期
- 【分类号】S567.71
- 【被引频次】17
- 【下载频次】187