干旱地区农业研究2011，Vol.29Issue(6)：222-226,232,6.
腐植酸浸种对盐碱胁迫下小麦根系抗氧化系统的影响
Effects of humic acid on activity of antioxidation system in wheat root under salinity-alkalinity stress
摘要
Abstract
Neutral salt (NaCl) and basic salt (NaHCO3) were mixed to simulate different concentration salinity-alkalinity stress respectively, two kinds of genotype spring wheat (Longmai 26 and Kehan 16) were treated for soaking seed of humic acid. The content of oxygen free radicals, malondialdehyde (MDA) and glutathione (GSH) , and the activity of peroxidase(POD) and superoxide dismutase (SOD) of root were determined to investigate the control effects of HA on an-tioxidant system of wheat root under salinity-alkalinity stress. The results showed that the content of MDA and the activity of POD were increased, however, the activity of SOD were decreased, and the effect of salt stress was more than that of alkali stress. Soaking seed of humic acid reduced the acumulation reactive oxygen species(ROS) , increased the activity of POD and SOD in root, and promoted the synthesis of GSH.关键词
小麦/根系/盐碱胁迫/抗氧化系统/腐植酸Key words
wheat/ root/ salinity-alkalinity stress/ antioxidation system/ humic acid分类
农业科技引用本文复制引用
郭伟,王庆祥..腐植酸浸种对盐碱胁迫下小麦根系抗氧化系统的影响[J].干旱地区农业研究,2011,29(6):222-226,232,6.基金项目
黑龙江省重大课题(G00QY08) （G00QY08）
黑龙江省教育厅课题(1153lz17) （1153lz17）
