镉胁迫对野生龙葵抗逆指标的影响  

Effects of Cadmium Stress on Physiological Anti-adversity Indexes of Solanum nigrum L.

作　　者：陈凤清[1] 张紫瑶 冯钰益 张雪[1] 符宁宁 王金立[1] 郑长新[1] 丛建民[1] 

机构地区：[1]白城师范学院生命科学学院,吉林白城137000

出　　处：《湖北农业科学》2017年第11期2076-2078,共3页Hubei Agricultural Sciences

基　　金：吉林省科学技术厅自然科学基金项目(20140101222JC);白城师范学院2014年度校级重点课题项目(201402);吉林省大学生创新创业训练计划项目(201607)

摘　　要：以吉林西部野生龙葵(Solanum nigrum L.)为试验材料,研究镉胁迫对野生龙葵抗逆指标的影响。结果表明,在高浓度镉胁迫下,野生龙葵叶片中脯氨酸和丙二醛的含量都明显增加;野生龙葵叶片中超氧化物歧化酶(SOD)的活性变化随镉胁迫浓度的增大呈现不稳定状态;在高浓度Cd Cl2(200 mg/kg)胁迫下,野生龙葵叶片中过氧化物酶(POD)活性明显提高;在高浓度镉胁迫下,野生龙葵叶片中过氧化氢酶(CAT)活性降低。Taking wild Solanum nigrum L. from the west of Jilin as material,the effects of cadmium stress on physiological anti-adversity indexes of S. nigrum L. were studied. The results showed that the proline content and MDA content obviously increased under the stress of high concentration of cadmium; the SOD activity presented unstable state with the increase of Cd concentration; under the stress of 200 mg/kg CdCl2, POD activity was significantly increased; CAT activity decreased under high concentration of cadmium stress.

关 键 词：镉胁迫 野生龙葵(Solanum nigrum L.) 丙二醛 脯氨酸 抗氧化酶 

分 类 号：S567.219[农业科学—中草药栽培] Q945.78[农业科学—作物学]