| 水稻对低磷反应的基因型差异及其生理适应机制的初步研究 |
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| 引用本文： | 明凤,米国华,张福锁,郑先武,朱立煌.水稻对低磷反应的基因型差异及其生理适应机制的初步研究[J].应用与环境生物学报,2000,6(2):138-141. |
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| 作者姓名： | 明凤 米国华 张福锁 郑先武 朱立煌 |
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| 作者单位： | 1. 中国科学院遗传所植物生化实验室,北京,100101
2. 中国农业大学植物营养系,北京,100094 |
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| 基金项目： | 国家重大项目资助课题!(No :39790100) |
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| 摘 要： | 选取构建水稻分子连锁图谱的两个亲本ＪＸ１７和ＺＹＱ８为材料，在３低磷胁迫下，对磷营养效率有关指标进行分析，结果表明，ＪＸ１７在与磷吸收效率有关的生理指标，如根干重、根分泌质子、根分泌有机酸等方面，都明显优于ＡＹＱ８，说明ＪＸ１７表现较高的相对干物重，低磷胁迫反应不敏感。
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| 关 键 词： | 水稻 低磷胁迫 吸收效率 敏感性 |
STUDIES ON VARIETAL DIFFERENCE OF RICE IN REPONSE TO LOW-P STRESS AND ITS PHYSIOLOGICAL ADAPTIVE MECHANISM |
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| MING Feng,MI Guohua,ZHANG Fusuo,ZHENG Xianwu,ZHU Lihuang.STUDIES ON VARIETAL DIFFERENCE OF RICE IN REPONSE TO LOW-P STRESS AND ITS PHYSIOLOGICAL ADAPTIVE MECHANISM[J].Chinese Journal of Applied and Environmental Biology,2000,6(2):138-141. |
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| Authors: | MING Feng MI Guohua ZHANG Fusuo ZHENG Xianwu ZHU Lihuang |
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| Abstract: | Two rice genotypes, JX17 and ZYQ8, which are the parents of 127-line DH population for construction of molecular linkage map, were chosen to detect their response to low phosphorus stress. The results indicated that JX17 had advantages over ZYQ8 on some traits associated with phosphorus uptake efficiency, such as root dry weight, root exuded acid phosphatase activity,root exuded organic acids and proton. Because of these properties, JX17 had relatively high total dry weight and was regarded as the non-sensitive genotype to low phosphorus stress. Fig 1, Tab 4, Ref 17 |
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| Keywords: | rice (Oryza sativa L ) low phosphorus stress phosphorus uptake efficiency sensitivity |
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