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植物研究 ›› 2009, Vol. 29 ›› Issue (4): 424-427.doi: 10.7525/j.issn.1673-5102.2009.04.007

• 论文 • 上一篇    下一篇

NaHCO3胁迫下朝鲜接骨木膜脂过氧化和渗透调节物质含量的变化

孙晶1;王庆成1,2*;徐静1;刘强1   

  1. (1.东北林业大学林学院,哈尔滨150040) (2.东北林业大学大庆生物技术研究院,大庆163000)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-20 发布日期:2009-07-20
  • 通讯作者: 王庆成
  • 基金资助:
     

Plasma-membrane Peroxidation and Osmotic Substances Changes of Sambucus coreana Seedlings Under NaHCO3 Stress

SUN Jing;WANG Qing-Cheng;*;XU Jing;LIU Qiang   

  1. (1.Forestry College,Northeast Forestry University,Harbin150040) (2.Institute of biotechnology NEFU in Daqing,Daqing163000)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-20 Published:2009-07-20
  • Contact: WANG Qing-Cheng
  • Supported by:
     

摘要: 采用盆栽试验的方法研究NaHCO3不同浓度和不同胁迫时间对朝鲜接骨木(Sambucus coreana(Nakai)Kom.et Alis.)叶片的膜脂过氧化和渗透调节物质含量的影响。研究表明,随盐浓度的增加和胁迫时间的延长,MDA含量和相对电导率明显升高,可溶性蛋白含量整体均呈上升趋势;随盐浓度的增加,脯氨酸含量上升趋势明显,可溶性糖含量也呈上升趋势。研究结果显示,朝鲜接骨木在低浓度(1 g·kg-1)盐胁迫下相关生理指标相对稳定,且随胁迫时间延长变化相对较小,可在轻度盐碱化地区应用。

关键词: 朝鲜接骨木, NaHCO3胁迫, 膜脂过氧化, 渗透调节物质

Abstract: The effects of different concentrations of NaHCO3 and different stress time on plasma-membrane peroxide-tion and contents of osmoregulation substances of Sambucus coreana(Nakai)Kom.et Alis. leaves were studied using plotted experimentation. Dramatic increasing of malondialdehyde contents and relative electrical conductivity was detected with the increasing of NaHCO3 concentration and treatment time, as well as the soluble protein contents; Marked increasing of proline and soluble sugar contents was detected with the increasing of NaHCO3 concentration. Results suggested that there were relative jarless physiological responses of S. coreana(Nakai)Kom.et Alis. under lower NaHCO3 concentration (1 g·kg-1), as well as relative slight changing with increasing treatment time, so it could be planted in mild saline-alkali area.

Key words: Sambucus coreana(Nakai) Kom.et Alis., NaHCO3 stress, plasma-membrane peroxidation, osmoregulation substances

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