| 硒对镉胁迫下豌豆幼苗生长发育的影响 |
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| 引用本文： | 王立新,郁建锋,张海芸,姜小莉,杜兰芳.硒对镉胁迫下豌豆幼苗生长发育的影响[J].安徽农业科学,2009,37(24):11502-11504. |
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| 作者姓名： | 王立新 郁建锋 张海芸 姜小莉 杜兰芳 |
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| 作者单位： | 常熟理工学院生物系,江苏常熟,215500;常熟理工学院生物系,江苏常熟,215500;常熟理工学院生物系,江苏常熟,215500;常熟理工学院生物系,江苏常熟,215500;常熟理工学院生物系,江苏常熟,215500 |
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| 基金项目： | 常熟理工学院植物学重点建设学科基金 |
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| 摘 要： | 目的]为缓解重金属对豌豆幼苗生长发育的毒害。方法]研究了不同浓度的硒对镉胁迫下豌豆的种子萌发、植株生长、根尖细胞分裂及过氧化物酶活性等方面的影响。结果]镉浓度≤50．0mg/L、硒浓度≤1．2mg/L时，硒促进镉胁迫下豌豆种子萌发生长、根尖细胞分裂，且降低细胞畸变率；镉浓度≤10．0mg／L、硒浓度≤0．1mg／L能提高叶绿素含量，缓解镉的氧化胁迫；当镉浓度达到100mg／L，1．2mg／L的硒则协同镉发生作用，加剧对豌豆幼苗的毒害作用。结论]低浓度的硒能缓解一定浓度的镉污染毒害，增强豌豆的抗性；高浓度的硒则协同镉一起胁迫豌豆而产生毒害。
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| 关 键 词： | 硒 镉 豌豆 叶绿素 过氧化物酶 |
Effects of Se on Growth and Development of Pea under Cd Stress |
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| WANG Li-xin et al.Effects of Se on Growth and Development of Pea under Cd Stress[J].Journal of Anhui Agricultural Sciences,2009,37(24):11502-11504. |
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| Authors: | WANG Li-xin |
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| Institution: | WANG Li-xin et al(Department of Biology,Changshu Institute of Technology,Changshu,Jiangsu 215500) |
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| Abstract: | Objective] The study aimed to relieve the toxic effect of heavy metal ions on the growth and development of pea seedling.Method] The effects of Se with different concentrations on seed germination,plant growth,root tip cell division and activity of peroxidases of peas under Cd stress were studied.Result] At the concentration of Cd ≤50.0 mg/L,Se ≤1.2 mg/L,Se can enhance the seeds germination and growth,root tip cell division,and reduce cell aberration rate under Cd stress;at the concentration of Cd ≤10.0 mg/L,Se ≤0.1 mg/L,chlorophyll contents were increased and oxidative stress of Cd was relieved;when the concentration of Cd was 100 mg/L,Se has the toxic effect coordinated with when the concentration of Cd was 1.2 mg/L,and the toxic effect was enhanced of peas.Conclusion] Se with a low concentration can relieve the toxic effect of Cd of certain concentration,and cooperating with Cd,Se with a high concentration can produce stress and toxic effect on peas. |
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| Keywords: | Se Cd Pea Chlorophyll Peroxidase |
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