欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 1999, Vol. 19 ›› Issue (3): 347-355.

• 论文 • 上一篇    下一篇

碱性盐胁迫下星星草幼苗中几种渗透调节物质的变化

阎秀峰1, 孙国荣2, 李晶3, 肖玮2   

  1. 1. 东北林业大学森林植物生态学开放研究实验室, 哈尔滨 150040;
    2. 哈尔滨师范大学生物系, 哈尔滨 150080;
    3. 东北农业大学基础部, 哈尔滨 150030
  • 收稿日期:1997-03-10 出版日期:1999-09-15 发布日期:2016-06-14

CHANGES OF SEVERAL OSMOTICA IN PUCCINELLIA TENUIFLORA SEEDLING UNDER ALKALI SALT STRESS

Yan Xiu-feng1, Sun Guo-rong2, Li Jing3, Xiao Wei2   

  1. 1. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040;
    2. Department of Biology, Harbin Normal University, Harbin 150080;
    3. Northeast Agriculture University, Herbin 150030
  • Received:1997-03-10 Online:1999-09-15 Published:2016-06-14

摘要: 模拟松嫩盐碱草地碱化土壤的离子组成配制碱性盐溶液处理星星草(Puccinellia tenuiflora)幼苗,测定了碱性盐胁迫下星星草幼苗地上部分几种渗透调节物质含量的变化。随着碱性盐浓度及胁迫天数的增加,Na+、可溶性盐、游离脯氨酸和可溶性糖的含量逐渐增加,其中游离脯氨酸的变化倍数最大。K+含量在浓度小于20 g L-1碱性盐胁迫下随胁迫天数增加而略为减少,在40 g L-1和60 g L-1碱性盐胁迫下先是降低,而后迅速增加。

关键词: 星星草, 碱性盐胁迫, 渗透调节物质

Abstract: Puccinellia tenuiflora seedlings were treated by alkaline salt solution that was made up according to ions composition of the alkaline soil of Songnen alkaline grassland. Contents of several osmotica in above-ground part of P. tenuiflora seedling under alkaline salt stress were determined. With the increment of alkaline salt concentration and stress days, content of Na+, soluble salt, free proline and soluble carbohydrate increased gradually, and the change of free proline is the greatest. Under the stress of alkaline salt which concentration is smaller than 20 g L-1, K+ content decreased a little with the stress days, and under the concentration of 40 g L-1 and 60 g L-1, K+ content decreased first, and then increased rapidly.

Key words: Puccinellia tenuiflora, Alkaline salt stress, Osmotica