摘要
We used maize and sorghum seedings as the material to investigate the protective effects of phosphate buffer on improving resistance and decreasing injury of sulphurous acid from membrane lipid peroxidation.The results showed that the activities of superoxide dismuiase (SOD) increased, the contents of superoxide anion radical (O -· 2) and malondialdehyde(MDA) decreased, the levels of electrolytic leakages decreased, and the seedings resistance improved. After treated with the different concentration of sulphurous acid,the seedings sprayed with phosphate buffer were less harmed than not-sprayed. The protective effects were obvious and varied with the concentration of sulphurous acid and plant species. The effect on sorghum was higher than that on maize.
We used maize and sorghum seedings as the material to investigate the protective effects of phosphate buffer on improving resistance and decreasing injury of sulphurous acid from membrane lipid peroxidation.The results showed that the activities of superoxide dismuiase (SOD) increased, the contents of superoxide anion radical (O -· 2) and malondialdehyde(MDA) decreased, the levels of electrolytic leakages decreased, and the seedings resistance improved. After treated with the different concentration of sulphurous acid,the seedings sprayed with phosphate buffer were less harmed than not-sprayed. The protective effects were obvious and varied with the concentration of sulphurous acid and plant species. The effect on sorghum was higher than that on maize.
出处
《生态学杂志》
CAS
CSCD
北大核心
2000年第3期16-19,共4页
Chinese Journal of Ecology
关键词
亚硫酸
大气污染
农作物
危害
磷酸缓冲液
sulphurous acid injury, phosphate buffer, membrane lipid, peroxidation.
