| 镉胁迫对红三叶种子萌发及幼苗生理特性的影响 |
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| 引用本文： | 张颖,高景慧.镉胁迫对红三叶种子萌发及幼苗生理特性的影响[J].西北农业学报,2007,16(3):57-59. |
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| 作者姓名： | 张颖 高景慧 |
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| 作者单位： | 西北农林科技大学动物科技学院,陕西杨凌,712100 |
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| 基金项目： | 西北农林科技大学校科研和教改项目 |
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| 摘 要： | 研究了不同Cd^2＋污染胁迫对红三叶种子发芽率、胚根/胚芽、抗氧化酶（SOD、POD、CAT）活性及膜脂过氧化产物MDA含量的影响.结果显示：轻度Cd^2＋污染胁迫对红三叶种子的萌发及胚根的生长、幼苗的SOD和CAT活性表现出了激活效应,但重度Cd^2＋污染胁迫和严重Cd^2＋污染胁迫却抑制了红三叶种子的萌发、胚根的生长及幼苗的SOD和CAT活性;而随着Cd^2＋污染胁迫的加剧,红三叶幼苗的POD活性、MDA含量是持续增高的.
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| 关 键 词： | Cd2 胁迫 红三叶 种子萌发 幼苗生理特性 |
| 文章编号： | 1004-1389（2007）03-0057-03 |
| 收稿时间： | 2006-09-08 |
| 修稿时间： | 2006-09-082006-11-30 |
Effects of Cd2+ Stress on the Seed Germination and Some Physiological Characteristics about Seedlings of Trifolium pratens |
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| ZHANG Ying and GAO Jing-hui.Effects of Cd2+ Stress on the Seed Germination and Some Physiological Characteristics about Seedlings of Trifolium pratens[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(3):57-59. |
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| Authors: | ZHANG Ying and GAO Jing-hui |
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| Institution: | College of Animal Science and Technology, Northwest A & F University, Yangling Shaanxi 712100, China;College of Animal Science and Technology, Northwest A & F University, Yangling Shaanxi 712100, China |
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| Abstract: | Effects of Cd2 stress on the seed germination and some physiologic characteristics about seedlings of Trifolium pratens were studied.The results showed that seed germination,growth of radicles,activities of SOD and CAT were activated under slightly-polluted Cd2 stress,but they were inhibited under heavily-polluted and seariously-polluted Cd2 stresses.At the same time,the activities of POD and the content of MDA were continuously increased with the increase of Cd2 pollution. |
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| Keywords: | Cd2 Stress Trifolium pratens Seed germination Physiologic characteristics of seedlings |
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