华北农学报 ›› 2002, Vol. 17 ›› Issue (2): 20-22. doi: 10.3321/j.issn:1000-7091.2002.02.005

所属专题: 玉米 抗旱节水 高影响力文章

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干旱胁迫下玉米根系活力和膜透性的变化

刘海龙, 郑桂珍, 关军锋, 李广敏   

  1. 河北省农林科学院农业物理生理生化研究所, 河北 石家庄 050051
  • 收稿日期:2001-10-02 出版日期:2002-06-28
  • 作者简介:刘海龙(1973-),男,在读硕士研究生,主要从事作物抗旱生理研究工作.李广敏,为通讯作者.
  • 基金资助:
    国家科技部特别支持项目

Changes of Root Activity and Membrane Permeability Under Drought Stress in Maize

LIU Hailong, ZHENG Guizhen, GUAN Junfeng, LI Guangmin   

  1. Institute o f Ag ro Physics, Plant Physiolog y and Biochemistr y, Hebei Academy of Agr icultur al and Fo restry Sciences, Shijiazhuang 050051, China
  • Received:2001-10-02 Published:2002-06-28

摘要: 研究了干旱胁迫下盆栽玉米叶片含水量、根系活力和质膜透性的变化,结果表明:干旱胁迫下,玉米叶片相对含水量下降,叶片及根系质膜透性上升,根系活力下降;并且,下部幼根的质膜透性比上部老根上升快,同时其活力下降也快于上部老根.

关键词: 玉米, 干旱胁迫, 质膜透性, 根系活力, 相对含水量

Abstract: Changes of the leave relat ive water content, roots activity and plasma membrane perme ability under drought st ress in pod cult ivated maize seedling were studied. T he results show ed that the leave relative water content and root s activity decreased, the plasma membrane permeability of leave and roots increased under drought st ress in maize, and the plasma membrane permeability in creased, as well as roots act ivity decreased in the low er younger roots more rapidly than those in the upper older roots.

Key words: Maize, Droug ht stress, Plasma membrane permeability, Root s activity, Relat ive water content

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引用本文

刘海龙, 郑桂珍, 关军锋, 李广敏. 干旱胁迫下玉米根系活力和膜透性的变化[J]. 华北农学报, 2002, 17(2): 20-22. doi: 10.3321/j.issn:1000-7091.2002.02.005.

LIU Hailong, ZHENG Guizhen, GUAN Junfeng, LI Guangmin. Changes of Root Activity and Membrane Permeability Under Drought Stress in Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(2): 20-22. doi: 10.3321/j.issn:1000-7091.2002.02.005.

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