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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (12): 139-142.

• 农学 农业基础科学 • 上一篇    下一篇

地被菊抗盐性研究

时丽冉1,赵炳春1,2,白丽荣1   

  • 收稿日期:2010-01-13 修回日期:2010-02-01 出版日期:2010-06-20 发布日期:2010-06-20
  • 基金资助:

    衡水湖湖滨带植被恢复及植物景观生态学研究

The Study on Salt Tolerance of Groune-cover chrysanthemum

Shi Liran1, Zhao Bingchun1,2, Bai Lirong1   

  • Received:2010-01-13 Revised:2010-02-01 Online:2010-06-20 Published:2010-06-20

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摘要：

为探究地被菊抗盐能力的高低，用0、50、100 、250 、400 mmol/L的NaCl溶液对地被菊幼苗进行盐胁迫处理，15天后测定幼苗叶片质膜透性、丙二醛、可溶性糖、脯氨酸含量及SOD、POD、CAT三种酶的活力等指标。结果显示，地被菊能忍受低浓度(?100mmol/L)NaCl胁迫。随盐胁迫强度加大，其叶片质膜透性增大，丙二醛含量上升。SOD、POD、CAT三种酶的活性则随逆境胁迫程度的加大呈现先上升后降低的趋势。可溶性糖含量在高浓度盐胁迫下增加，脯氨酸含量无明显变化。表明地被菊是一种优良的抗盐能力较强的地被花卉。

关键词: 果桑, 果桑, 侧芽, 组织快繁

Abstract:

To study the salt tolerance ability of Groune-cover chrysanthemum, the seedlings of Groune-cover chrysanthemum were treated with NaCl in different concentrations (0, 50, 100, 250, 400 mmol/L) for 15 days, then examined the physiological indexes. The result showed that Groune-cover chrysanthemum could tolerate low salt-stress (?100mmol/LNaCl). The plasma membrane permeability, malondialdehyde(MDA) content increased along with the concentration of NaCl increasing. The activity of superoxide dismutase (SOD), guaiacol peroxidase (POD), catalase (CAT) increased at first and then decreased along with NaCl concentration increasing. Soluble sugar content increased under high NaCl concentration. The proline content did not change significantly. Based on the results above we concluded that Groune-cover chrysanthemum show high adaptability to salt stress.