安徽农业科学Issue(12)：7362-7364,3.
二氧化硫胁迫对紫叶矮樱膜脂过氧化和保护酶活性的影响
Effects of SO2 Stress on Peroxidation of Membrane Lipid and Activity of Protective Enzymes of Prunus × cistena ' Pissardii'
摘要
Abstract
[ Objective ] The aim was to provide theoretical guidance for the planting and selection of Primus x cistena ' Pissardii'. [ Methods ] Fumigation treatment for potted seedlings was carried out using simple static fumigation system, and the effect of SO2 with different concentrations on antioxidant enzyme activity, proline content, lipid peroxidation, soluble protein content, sulfur absorption and leaf fluid pH of Prunus x cistena ' Pissardii' was studied. [ Result J With the increase of SO2 concentration, the activities of superoxide dismutase ( SOD ) , peroxidase ( POD), and catalase (CAT) raised, the contents of malundialdehyde (MDA), proline and soluble protein increased, and membrane perme-ahility rose, sulfur absorption increased significantly, pH of leaves dropped. When the concentration of sulfur dioxide exceeded 17.10 mg/m3, the antioxidant enzyme system had been severely damaged. [ Conclusion ] The system of antioxidant enzymes of Prunus x cistena ' Pissardii' firstly defenses the toxicity of-SO2 actively, then with The increase of concentration, the system is damaged, thereby, its activities decrease.关键词
紫叶矮樱/二氧化硫/膜脂过氧化/抗氧化酶活性Key words
Prunus x cistena ' Pissardii ' / SO2/ Membrane lipid peroxidation/ Activity of antioxidant enzymes分类
农业科技引用本文复制引用
李向应,韩亚琦,李彦慧,白瑞琴..二氧化硫胁迫对紫叶矮樱膜脂过氧化和保护酶活性的影响[J].安徽农业科学,2012,(12):7362-7364,3.基金项目
国家林业局"948"项目(2001-40) （2001-40）
河北省农业综合开发办公室"新优彩色园林树种繁育技术示范推广"项目. （）
