| Cd、Pb胁迫对烟草叶片中活性氧清除系统的影响 |
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| 引用本文： | 严重铃,洪业汤,付舜珍,方重华,雷基祥,沈芹.Cd、Pb胁迫对烟草叶片中活性氧清除系统的影响[J].生态学报,1997,17(5):488-492. |
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| 作者姓名： | 严重铃 洪业汤 付舜珍 方重华 雷基祥 沈芹 |
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| 作者单位： | 贵州省环保科研所，中国科学院地球化学研究所，贵州农学院林学系 |
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| 摘 要： | Ｃｄ，Ｐｂ胁迫对烟草叶片活性氧清除系统的影响表明：随着Ｃｄ、Ｐｂ处理浓度的增大，叶绿素含量、叶绿素ａ／ｂ值，ＣＡＴ（过氧化氢酶）活性逐渐减小，ＳＯＤ（超氧化物歧化酶）活性先升后转而下降；ＰＯＤ（过氧化物酶）活性则逐渐增加。对烟草活性氧清除系统的影响。Ｃｄ，Ｐｂ之间存在明显的协合作用。Ｃｄ，Ｐｂ胁迫明显地影响活性氧清除系统，导致烟草叶片活性氧代谢失调和加速叶片的老化。
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| 关 键 词： | 烟草 活性氧清除系统 镉胁迫 铅胁迫 |
| 收稿时间： | 1995/10/27 0:00:00 |
| 修稿时间： | 1996/3/27 0:00:00 |
EFFECT OF Cd,Pb STRESS ON SCARENGING SYSTEM OF ACTIVATED OXYGEN IN LEAVES OF TOBACCO |
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| YAN Chongling,HONG Yetang,FU Shunzhen,FANG Chonghu,LEI Jixiang and SHEN Qin.EFFECT OF Cd,Pb STRESS ON SCARENGING SYSTEM OF ACTIVATED OXYGEN IN LEAVES OF TOBACCO[J].Acta Ecologica Sinica,1997,17(5):488-492. |
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| Authors: | YAN Chongling HONG Yetang FU Shunzhen FANG Chonghu LEI Jixiang and SHEN Qin |
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| Institution: | Guizhou Institution of Environmental Protection; Guiyang; China |
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| Abstract: | The effect of Cd,Pb stress on scarenging system of activated oxygen indicated that content of chlorophyll,chlorophyll a/b ratio and activity of CAT gradually decrease,the activity of SOD increase first and decrease afterwards,the activity of POD gradually increase with the consistency of Cd,Pb treatment.Between Cd and Pb,there is a synergistical action on effect of scarenging system of activated oxygen.The results indicated that Cd,Pb stress affect scarenging system of activated oxygen and result in imbalance of activated oxygen metabolism |
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| Keywords: | Cd Pb stress scarenging system of activated oxygen tobacco |
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