华北农学报 ›› 2009, Vol. 24 ›› Issue (2): 112-116. doi: 10.7668/hbnxb.2009.02.024

所属专题: 水稻 盐碱胁迫

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水稻耐碱突变体ACR78在苏打盐碱胁迫下的离子吸收特性

齐春艳1,2,3, 梁正伟1,3, 杨福1,3, 王志春1,3   

  1. 1. 中国科学院 东北地理与农业生态研究所, 吉林 长春 130012;
    2. 中国科学院 研究生院, 北京 100039;
    3. 中国大安碱地生态试验站, 吉林 大安 131317
  • 收稿日期:2008-12-19 出版日期:2009-04-28
  • 通讯作者: 梁正伟( 1962- ), 男, 吉林长春人, 研究员, 博士, 博士生导师, 主要从事植物逆境生理生态与分子生物学研究。
  • 作者简介:齐春艳( 1978- ), 女, 吉林人, 博士, 主要从事植物逆境生理生态与水稻耐盐碱种质资源筛选研究.
  • 基金资助:
    中科院西部行动计划(KZCX2-XB2-13);国家科技支撑项目(2007BAD65802);中国科学院知识创新工程项目(KSCX1-YW-03);中科院知识创新工程前沿领域项目(KZCX3-SW-NA3-30)

Ion Absorption Characteristics of Mineral Elements of Alkali-tolerant Rice Mutant ACR78 under Soda Saline-alkaline Stress

QI Chun-yan1,2,3, LIANG Zheng-wei1,3, YANG Fu1,3, WANG Zhi-chun1,3   

  1. 1. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;
    3. Da′an Sodic Land Experiment Station, Da’an 131317, China
  • Received:2008-12-19 Published:2009-04-28

摘要: 利用盆栽方法,比较研究了盐碱胁迫下水稻耐碱突变体(ACR78)及其野生型植株体内K+、Na+、Ca2+、Mg2+、Fe2+和Zn2+含量的变化.结果表明,盐碱胁迫下,ACR78全株Na+总含量比野生型减少2.9%,显著低于野生型.同时,其+、Zn2+和Mg2+含量比野生型分别增加18.3%,89.7%和4.9%(P<0.05),全株K+/Na+比值(0.16)显著高于野生型(0.13).从器官水平看,ACR78茎中K+/Na+比值极显著高于野生型,约为野生型的1.4倍.ACR78根和茎中Na+含量显著低于野生型(14.0%和.9%),其茎中K+含量比野生型增加32.3%,根和叶中无显著性差异.ACR78根和茎中Zn2+含量分别比野生型增加44.2%和202.7%,Mg2+含量在器官中的分配规律与Na+相反.说明ACR78可显著抑制Na+的吸收,并对K+、Zn2+和Mg2+具有较强的选择性吸收能力.

关键词: 水稻, 耐碱突变体, ACR78, 盐碱胁迫, 离子吸收

Abstract: The content change of K+,Na+,Ca2+,Mg2+, Fe2+and Zn2+ of alkaline tolerant rice mutant(ACR 78) and its wild type were compared analysis by pot culture.The results showed that the total Na+ content of ACR78 was 2.9 % lower than that of the wild type,and the K+,Zn2+ and Mg2+ content of ACR78 were 18.3 %, 89.7 %and 4.9 %(P <0.05)higher than that of the wild type respectively.The ratio of K+ and Na+ in stem of ACR78 was approximately 1.4 times of the wild type,the difference was very significant.The Na+ content in root and stem of ACR78 were significantly lower than that of the wild type(14.0 % and 5.9 % respectively),and the K+ content in stem of ACR78 was 32.3 % higher than the wild type,but the content in root and stem were no difference.The Zn2+ content in root and stem of ACR78 were 44.2 % and 202.7 % higher than the wild type respectively.The distribution law of Mg2+ content in organs was opposite to the Na+ content.The results indicated that ACR78 could significantly inhibit the uptake of Na+ and had the ability of selective uptake to K+, Zn2+ and Mg2+.

Key words: Rice, Alkaline tolerant mutant, ACR78, Ion uptake

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引用本文

齐春艳, 梁正伟, 杨福, 王志春. 水稻耐碱突变体ACR78在苏打盐碱胁迫下的离子吸收特性[J]. 华北农学报, 2009, 24(2): 112-116. doi: 10.7668/hbnxb.2009.02.024.

QI Chun-yan, LIANG Zheng-wei, YANG Fu, WANG Zhi-chun. Ion Absorption Characteristics of Mineral Elements of Alkali-tolerant Rice Mutant ACR78 under Soda Saline-alkaline Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(2): 112-116. doi: 10.7668/hbnxb.2009.02.024.

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