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植物研究 ›› 2004, Vol. 24 ›› Issue (3): 326-330.

• 论文 • 上一篇    下一篇

盐胁迫下蒙古冰草幼苗生长和离子含量的变化

王荣华1,2, 石雷1, 汤庚国2, 梁寅初1, 张称意3   

  1. 1. 中国科学院植物研究所, 北京 100093;
    2. 南京林业大学森林与环境学院, 南京 210037;
    3. 国家气象中心, 北京 100081
  • 收稿日期:2004-02-10 出版日期:2004-09-15 发布日期:2016-06-14
  • 通讯作者: 石雷,E-mail:shilei67@263.net E-mail:shilei67@263.net
  • 作者简介:王荣华(1972-), 女, 硕士, 主要从事植物学教学与科研。
  • 基金资助:
    中国科学院知识创新工程重大项目(KSCX1-08-02-08)和首都圈(环北京)防沙治沙应急技术研究与示范(FS 2000-009)资助项目

Effect of NaCl stress on growth and content of severalions of wheatgrass

WANG Rong-Hua1,2, SHI Lei1, TANG Geng-Guo2, LIANG Yin-Chu1, ZHANG Chen-Yi3   

  1. 1. Institute of Botany, Chinese Academy of Sciences, Beijing 100093;
    2. Forestry and Environmental Faculty of Nanjing Forestry University, Nanjing 210037;
    3. National Climate Center, China Metrological Administration, Beijing 100081
  • Received:2004-02-10 Online:2004-09-15 Published:2016-06-14

摘要: 用不同浓度的NaCl溶液处理蒙古冰草幼苗后,测定了不同时间胁迫下植株地上部分鲜重和离子含量。结果表明:轻度盐胁迫对蒙古冰草幼苗的生长有一定的促进作用,而中度和重度盐胁迫对幼苗生长有明显的抑制作用。经分析认为,轻度盐胁迫下蒙古冰草可以将Na+等有害离子截流在根部,抑制其向地上部分的运输,而中度和重度盐胁迫下过多的Na+等有害离子运输到地上代谢活跃部分,限制了对K+、Ca2+等的吸收,造成植株的营养亏缺,从而引起植株的伤害。

关键词: 盐胁迫, 蒙古冰草, 幼苗生长, 离子含量

Abstract: Different concentration of NaCl was used to treat the seedings of wheatgrass,we studied the effect of salt stress on fresh weight and ion content of leaves of wheatgrass.The result showed that wheatgrass seedlings can keep growth in slight salt stress.But in middle or severe stress,growth of the seedlings was restrained distinctly.So we considered that the seedlings of wheatgrass can prevent Na+ from transporting to upgroud by withholding Na+ in root.This can keep the balance of ion of upground.But in middle or severe salt stress,the upgroud of seedlings accumulated superabundance of Na+,limited the uptake of K+ and Ca2+,seedlings was damaged heavily.

Key words: NaCl stress, Agropyron mongolium Keng, growth of seedlings, content of severalions