Cu、Fe、Zn和Pb对玉米种子萌发率及淀粉酶活性的影响  

Effects of Cu,Fe,Zn and Pb on Seed Germination and α-Amylase Activity of Maize

作　　者：乔琳[1,2] 傅兆麟[2] 

机构地区：[1]淮北师范大学生命科学院,安徽淮北235000 [2]周口师范学院实验中心,河南周口466001

出　　处：《种子》2010年第6期36-38,共3页Seed

基　　金：河南省教育厅自然科学基金项目(2008B210014)

摘　　要：以玉米为材料,研究了不同浓度的铜、铁、锌、铅重金属离子对玉米种子萌发率及α-淀粉酶活性的影响。结果表明:低浓度重金属溶液(Cu2+≤0.5 mmol/L,Fe3+≤2 mmol/L,Zn2+≤1 mmol/L,Pb2+≤0.05 mmol/L)促进玉米萌发;铜、铅离子对淀粉酶活性有促进作用,锌离子对淀粉酶活性的有明显的抑制作用。With maize as material to study the influences of Cu,Fe,Zn and Pb on seed germination and the activity of a-Amylase.The results showed that Cu,Fe,Zn and Pb could promote seed germination at low concentration（Cu^2＋≤0.5mmol/L,Fe^3＋≤2mmol/L,Zn^2＋≤1mmol/L,Pb^2＋≤0.05mmol/L）,but when the concentration was higher than some value,maize seed germination were restrained obviously.Cu or Pb treatment could promote the activity of α-amylase,and Zn treatment had obviously inhibitory to α-amylase.

关 键 词：玉米 重金属 萌发率 淀粉酶 

分 类 号：S513[农业科学—作物学]