6-苄基腺嘌呤对盐分胁迫条件下小麦幼苗体内Na+、K+和Cl-的含量及其分布的影响

doi:10.3321/j.issn:1000-7091.1999.04.008

华北农学报 ›› 1999, Vol. 14 ›› Issue (4): 39-44. doi: 10.3321/j.issn:1000-7091.1999.04.008

所属专题： 小麦；盐碱胁迫；

6-苄基腺嘌呤对盐分胁迫条件下小麦幼苗体内Na⁺、K⁺和Cl^-的含量及其分布的影响

张士功¹, 高吉寅², 宋景芝²

1. 中国农业科学院山区研究室, 北京 100081;
2. 中国农业科学院品种资源研究所抗逆研究室, 北京 100081

收稿日期:1998-10-20 出版日期:1999-12-28
作者简介:张士功,男,1971年生,助理研究员,农学硕士,主要从事植物逆境生理学和植物营养学研究工作。

Effects of 6-Benzyladenine on Content and Distribution of Na⁺,K⁺ and Cl^-in Wheat(Triticum aestivum L.)Seedling Under Salt Stress

Zhang Shigong¹, Gao Jiyin², Song Jingzhi²

1. Upland Research Center, Institute of Agricultural National Resources and Agricultural Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081;
2. Department of Stress Resistance, Institute of Crop Germplasm Resources, Chinese Academy of Ag ricultural Sciences, Beijing

Received:1998-10-20 Published:1999-12-28

摘要/Abstract

摘要： 以小麦为材料,研究盐分胁迫条件下6-苄基腺嘌呤对小麦(Triticum aestivum L)幼苗Na⁺、K⁺、Cl^-吸收、分配的影响。结果表明,6-苄基腺嘌呤能够在一定程度上限制幼苗对Na⁺的吸收,阻滞其向地上部分运输的数量和速度；提高体内K⁺ 含量、向上运输效率,降低地上部分对Na⁺、K⁺的选择性(S_Na⁺、K⁺),同时6^-苄基腺嘌呤还能够促进幼苗根系对Cl^-的吸收,并有效地将Cl^-限制在根部,阻滞Cl^-向上运输,相对降低地上部分的Cl^-含量。所有这些变化都有利于提高小麦幼苗抗盐性和对盐分胁迫的适应性。

关键词: 盐分胁迫, 6-苄基腺嘌呤, SNa⁺、K⁺, 抗盐性

Abstract: Effects of 6-benzyladenine on content and distribution of Na⁺,K⁺and Cl^- in wheat (Triticum aestivum L.)seedling under salt stress were studied.The results showed that 6-benzyladenine could relatively inhibit the absorption of Na⁺ and Cl^-,cut down the quantity and rate of its transportation to shoot,and increase the K⁺ content in wheat seedling,decrease Na⁺,K⁺ selectivity ratio(S_Na⁺、_K⁺ )of transportation to shoot.Therefore the salt resistance and the adaptability of wheat seedling to salt stress were raised.

Key words: Salt stress, 6-Benzyladenine, S_Na⁺、_K⁺, Salt resistance

中图分类号:

S512.104.2

张士功, 高吉寅, 宋景芝. 6-苄基腺嘌呤对盐分胁迫条件下小麦幼苗体内Na⁺、K⁺和Cl^-的含量及其分布的影响[J]. 华北农学报, 1999, 14(4): 39-44. doi: 10.3321/j.issn:1000-7091.1999.04.008.

Zhang Shigong, Gao Jiyin, Song Jingzhi. Effects of 6-Benzyladenine on Content and Distribution of Na⁺,K⁺ and Cl^-in Wheat(Triticum aestivum L.)Seedling Under Salt Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1999, 14(4): 39-44. doi: 10.3321/j.issn:1000-7091.1999.04.008.

http://www.hbnxb.net/CN/Y1999/V14/I4/39

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Effects of 6-Benzyladenine on Content and Distribution of Na⁺,K⁺ and Cl^-in Wheat(Triticum aestivum L.)Seedling Under Salt Stress

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6-苄基腺嘌呤对盐分胁迫条件下小麦幼苗体内Na⁺、K⁺和Cl^-的含量及其分布的影响

Effects of 6-Benzyladenine on Content and Distribution of Na⁺,K⁺ and Cl^-in Wheat(Triticum aestivum L.)Seedling Under Salt Stress