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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (13): 169-173.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

壳聚糖Cu(Ⅱ)，Mn(Ⅱ)配合物对玉米种子发芽和幼苗耐盐性的影响

刘正华 陈实 乐学义   

  • 收稿日期:2010-01-18 修回日期:2010-03-07 出版日期:2010-07-05 发布日期:2010-07-05
  • 基金资助:

    广东省自然科学基金重点项目“新型SOD模拟物抗拟增产剂的设计、制备及应用研究”

Effects of Chitosan Supported Cu(Ⅱ), Mn(Ⅱ) Complexes on Seed Germination and Salt-tolerance of Seedling Growth of Maize

  • Received:2010-01-18 Revised:2010-03-07 Online:2010-07-05 Published:2010-07-05

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摘要：

摘 要： 应用一定浓度的壳聚糖Cu(Ⅱ)、Mn(Ⅱ)配合物处理玉米种子和在120 mmolL-1NaCl胁迫条件下生长的玉米幼苗，探讨壳聚糖Cu(Ⅱ)、Mn(Ⅱ)配合物对玉米种子和盐胁迫下玉米幼苗某些生理生化特征的影响。试验结果表明：经配合物处理的玉米种子和玉米幼苗其发芽率、发芽指数及耐盐指数明显提高。在盐胁迫下，经配合物处理后的玉米幼苗叶片中脯氨酸含量增加放慢，叶绿素荧光参数PSⅡ原初光能转换效率降低放缓，蛋白质含量下降速度减小，可溶性糖含量提高变慢，SOD酶活性增加幅度变大。说明壳聚糖Cu(Ⅱ)、Mn(Ⅱ)配合物可以提高玉米幼苗的耐盐性。

关键词: EST, EST, 分子标记, 开发

Abstract:

Abstract: The effects of chitosan supported Cu(Ⅱ), Mn(Ⅱ) complexes on some physiological characteristics of seed germination and salt-tolerance of seedling growth of maize were investigated, seed and seedlings were treated with chitosan supported Cu(Ⅱ), Mn(Ⅱ) complexes solution and 120 mmolL-1 NaCl solution. The results showed that chitosan supported Cu(Ⅱ), Mn(Ⅱ) complexes solution increase seed germination percentage, germination index and salt tolerance index. Under salt stress conditions, the increment speed of proline content、the reduction velocity of chlorophyll content、the reduction velocity of soluble protein content and the increment speed of soluble sugar content decreased, the increment speed of SOD activities increased in stressed seedlings. It was suggested that chitosan supported Cu(Ⅱ), Mn(Ⅱ) complexes solution improve the salt tolerance of seedlings in maize.