SOD模拟物对玉米幼苗抗盐害作用效果及机理研究  

Effect of SOD Mimics on Salt Stress of Maize Seedlings

作　　者：廖升荣[1] 毛小云[2] 张昭其[3] 林庆斌[1] 张军军[1] 丁杨[1] 乐学义[1] 

机构地区：[1]华南农业大学理学院,广东广州510642 [2]华南农业大学资源与环境学院,广东广州510642 [3]华南农业大学园艺学院,广东广州510642

出　　处：《土壤通报》2007年第5期962-965,共4页Chinese Journal of Soil Science

基　　金：广东省自然科学基金重点项目"新型SOD酶模拟物的设计;制备及应用研究"(04105986)

摘　　要：在中度盐害的情况下,用含氨基酸的过渡金属(Cu、Mn)SOD模拟物对玉米浸种、叶面喷施,八叶期后对幼苗的生理生化指标进行检测,结果发现经SOD模拟物浸种、叶面喷洒处理,生物量提高1.32%～15.77%(鲜重)和7.05%～15.89%(干重),光合速率提高17.60%～41.40%,叶绿素含量提高7.20%～26.51%,体内SOD活性提高最高达38.75%。初步表明上述SOD模拟物能有效抑制玉米幼苗所受的盐害胁迫作用。The effect of the SOD mimic s containing transition seedlings was investigated. The seeds of maize were treated with metals and L-amino acids on salt stress of maize a certain concentrations of SOD mimics （0.1-0.5mol L^-1） by the way of soaking and spraying. The biomass, chlorophyll content, photosynthetic rates and SOD activities were determined in the-8^th-ledf period. The results showed that SOD mimics could increase biomass （1.32%-15.77%, 7.05%-15.89%） and chlorophyll contents （7.20%-26.51%）, improvd photosynthetic rates （17.60%-41.40%） and enhancd the high SOD activities （0%-38.75%）, whieh means that the SOD mimics could protect the maize seedling against the salt stress.

关 键 词：SOD模拟物 盐害 玉米幼苗 

分 类 号：S155.95[农业科学—土壤学] S153.8[农业科学—农业基础科学]