欢迎访问《草业学报》官方网站,今天是 分享到:

草业学报 ›› 2010, Vol. 19 ›› Issue (6): 272-275.

• 研究简报 • 上一篇    下一篇

苣荬菜对盐胁迫的生理响应

时丽冉1, 牛玉璐1, 李明哲2*   

  1. 1.衡水学院 生命科学系,河北 衡水 053000;
    2.河北省农林科学院旱作农业研究所,河北 衡水 053000
  • 收稿日期:2009-12-17 出版日期:2010-06-25 发布日期:2010-12-20
  • 作者简介:时丽冉(1970-),女,河北深县人,副教授,硕士。E-mail:slr701212@163.com
  • 基金资助:
    河北省科学技术研究与发展计划项目(07220118)资助

Physiological response of Sonchus brachyotus to salt stress

SHI Li-ran1, NIU Yu-lu1, LI Ming-zhe2   

  1. 1.Department of Life Science, Hengshui University, Hengshui 053000, China;
    2.Dry Land Farming
    Institute, Hebei Academy of Agricultural and Forestry Science, Hengshui 053000, China
  • Received:2009-12-17 Online:2010-06-25 Published:2010-12-20

摘要: 研究了苣荬菜在不同浓度NaCl(0,3,6,9,12g/kg)胁迫下生理指标的变化。结果表明,随盐浓度的增大,叶片质膜透性、丙二醛含量升高,抗氧化酶SOD、CAT、POD活性上升,可溶性有机渗透调节物质脯氨酸、可溶性糖含量上升,可溶性蛋白含量仅在低浓度下升高,之后随NaCl浓度升高降低,表明苣荬菜抗盐能力较强。

Abstract: Seedlings of Sonchus brachyotus were treated with NaCl at different concentrations (0, 3, 6, 9, 12 g/kg), the physiological response was observed, and the physiological indexes measured. With an increase in NaCl concentration, plasma membrane permeability and malondialdehyde (MDA) content increased. The activity of superoxide dismutase (SOD), guaiacol peroxidase (POD) and catalase (CAT), and the proline and soluble sugar contents also increased with NaCl stress intensification. Soluble protein contents increased under low NaCl concentrations but tended to slowly decline with an increase in NaCl concentration. In conclusion, S. branchyotus showed a great adaptability to salt stress.

中图分类号: