| 水稻耐碱突变体ACR78在苏打盐碱胁迫下的离子吸收特性 |
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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). |
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| 作者姓名： | 齐春艳 梁正伟 杨福 王志春 |
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| 作者单位： | 1. 中国科学院,东北地理与农业生态研究所,吉林,长春,130012;中国科学院,研究生院,北京,100039;中国大安碱地生态试验站,吉林,大安,131317
2. 中国科学院,东北地理与农业生态研究所,吉林,长春,130012;中国大安碱地生态试验站,吉林,大安,131317 |
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| 基金项目： | 中国科学院西部行动计划项目，国家科技支撑项目，中国科学院知识创新工程项目，中国科学院知识创新工程前沿领域项目 |
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| 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K+、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+>/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5.9%),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.
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| 关 键 词： | 水稻 耐碱突变体 盐碱胁迫 离子吸收 |
Ion Absorption Characteristics of Mineral Elements of Alkali-tolerant Rice Mutant ACR78 under Soda Saline-alkaline Stress |
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| 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). |
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| Authors: | QI Chun-yan LIANG Zheng-wei YANG Fu WANG Zhi-chun |
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| Institution: | QI Chun-yan1,2,3,LIANG Zheng-wei1,YANG Fu1,WANG Zhi-chun1,3 |
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| Abstract: | The content change of K+,Na+,Ca2+,Mg2+,Fe 2+ 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 an... |
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| Keywords: | ACR78 |
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