| 铅胁迫对小白菜幼苗叶绿素含量和抗氧化酶系统的影响 |
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| 引用本文： | 杜连彩.铅胁迫对小白菜幼苗叶绿素含量和抗氧化酶系统的影响[J].中国蔬菜,2008,1(5):17-19. |
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| 作者姓名： | 杜连彩 |
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| 作者单位： | 山东省潍坊学院生物工程学院，261061 |
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| 摘 要： | 采用在盆栽土壤中浇施铅溶液的方法，研究了外源重金属铅对小白菜幼苗叶片叶绿素含量和抗氧化酶系统的影响。结果表明，小白菜幼苗叶片中叶绿素a、叶绿素b含量及叶绿素总量随铅胁迫浓度升高而降低；SOD、POD、CAT活性随铅胁迫浓度的升高呈现先升高后降低的趋势；而MDA含量则随铅胁迫浓度的升高而增加。
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| 关 键 词： | 铅胁迫 小白菜 叶绿素 抗氧化酶系统 |
| 收稿时间： | 2007-09-28; |
| 修稿时间： | 2007年9月28日 |
Effects of Lead Stress on Chlorophyll Content and Antioxidant System of Pakchoi |
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| Du Liancai.Effects of Lead Stress on Chlorophyll Content and Antioxidant System of Pakchoi[J].China Vegetables,2008,1(5):17-19. |
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| Authors: | Du Liancai |
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| Institution: | (Bioengineering Institute,Weifang University，Weifang 261061) |
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| Abstract: | Pakchoi seedlings exposed to different concentrations of lead were used to study effects of lead stress on chlorophyll content and antioxidant system.The main results were following:with the increase of lead concentration the contents of chlorophyll a,chlorophyll b,and total chlorophyll decreased,and the activities of SOD,POD,CAT first increased then decreased,and the MDA content increased. |
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