盐胁迫对苦菜幼苗膜质过氧化的影响  

THE EFFECTS OF SALT TOLERANCE ON THE MEMBRANE LIPID PEROXIDATION IN Sonchus oleraceus L.

作　　者：陈贵华[1] 石岭[1] 王萍[1] 张之为[1] 

机构地区：[1]内蒙古农业大学农学院,呼和浩特010019

出　　处：《内蒙古农业大学学报（自然科学版）》2017年第3期15-18,共4页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古自然科学基金(2014MS0324);现代农业产业技术体系建设专项基金(CARS-03-04);内蒙古农业大学科研发展基金(230014)

摘　　要：研究以苦菜为材料,研究0.6%、0.8%、1.0%的NaCl盐溶液胁迫处理对苦菜幼苗膜脂过氧化的影响。结果表明,0.6%、0.8%、1.0%的NaCl盐溶液胁迫处理后苦菜幼苗的MDA、H2O2含量,SOD、POD、CAT和APX活性均有变化;盐胁迫后的第10d、第15d时,以上的各项指标均达到峰值,在0.8%、1.0%NaCl盐溶液胁迫下,其各项指标显著高于对照。结果显示,在0.8%、1.0%NaCl盐溶液胁迫处理下,苦菜幼苗通过激活防系统,降低膜脂过氧化的水平,提高苦菜幼苗对盐胁迫的耐受能力。The effects of 0.6%, 0. 8%, 1.0% NaC1 stress on the membrane lipid peroxidation were investigation in Sonchus oleracers L. seedings. The results showed that the content of MDA and H202 appeared to increased;the antioxidant enzymes such as SOD ,POD,CAT and APX activity were also increased, and they were higher than CK obviousy under 0.8% ,1.0% NaC1 stress. This result showed ： It raised the antioxideant ability of seedlings under salt stress and the salt resistance was improved.

关 键 词：苦菜 盐胁迫 膜脂过氧化 

分 类 号：S636.9[农业科学—蔬菜学]