| Pb~(2+),Cd~(2+)胁迫对棉花保护酶及丙二醛含量的影响 |
| |
| 引用本文： | 郑世英,张秀玲,王丽燕,商学芳.Pb~(2+),Cd~(2+)胁迫对棉花保护酶及丙二醛含量的影响[J].河南农业科学,2007(8):43-45,63. |
| |
| 作者姓名： | 郑世英 张秀玲 王丽燕 商学芳 |
| |
| 作者单位： | 德州学院,生物系,山东,德州,253023 |
| |
| 基金项目： | 德州学院校科研和教改项目 |
| |
| 摘 要： | 分别用离子浓度为0 mol/L(ck),6 mol/L,10 mol/L,20 mol/L,30 mol/L,50 mol/L,100mol/L的Pb2+,Cd2+溶液处理经过珍珠岩栽培后又在1/2 Hoagland培养液进行培养的棉花幼苗,14 d后对其叶片的保护酶SOD,POD和CAT的活性以及MDA的含量进行测定。结果显示:低浓度Pb2+,Cd2+胁迫下,SOD,POD,CAT活性及MDA含量均高于对照。当Cd2+浓度达到30 mol/L时,SOD,POD及CAT活性最高,随着Cd2+浓度继续升高,SOD,POD及CAT活性随之降低。当Pb2+浓度达到50 mol/L时,SOD,POD及CAT活性最高,随着Pb2+浓度继续升高,SOD,POD及CAT活性随之降低。MDA含量随着Pb2+,Cd2+浓度逐渐升高呈升高的趋势。棉花幼苗对Pb2+胁迫的耐受力大于对Cd2+胁迫的耐受力。
|
| 关 键 词： | Pb2+ Cd2+ 棉花 保护酶 丙二醛 |
| 文章编号： | 1004-3268（2007）08-0043-04 |
| 修稿时间： | 2007-03-06 |
Effects of Pb2+ and Cd2+ Stress on the Protective Enzymes Activity and MDA Contents of Cotton |
| |
| ZHENG Shi-ying,ZHANG Xiu-ling,WANG Li-yan,SHANG Xue-fang.Effects of Pb2+ and Cd2+ Stress on the Protective Enzymes Activity and MDA Contents of Cotton[J].Journal of Henan Agricultural Sciences,2007(8):43-45,63. |
| |
| Authors: | ZHENG Shi-ying ZHANG Xiu-ling WANG Li-yan SHANG Xue-fang |
| |
| Institution: | Department of Biology,Dezhou University,Dezhou 253023, China |
| |
| Abstract: | The SOD,POD and CAT activity and MDA contents of cotton leaves were analyzed after treated with different concentrations of Pb2 and Cd2 solution(0 mol/L(ck),6 mol/L,10 mol/L,20 mol/L,30 mol/L,50 mol/L,100 mol/L). The results showed that the Pb2 and Cd2 stress at lower concentration conditin could raise the activities of SOD,POD and CAT and the contents of MDA .The SOD,POD and CAT activities in the 30 mol/L of Cd2 treatment reached to the highest,but declined as continually increasing the Cd2 concentration.For Pb2 ,the highest activities of SOD,POD and CAT came from the 50 mol /L treatment.MDA contents were increasing as the increase of Pb2 and Cd2 concentrations.The tolerance of cotton seedlings to Pb2 was bigger than to Cd2 . |
| |
| Keywords: | Pb2 Cd2 Cotton Protective enzymes MDA |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
