| NRT1.7基因突变对拟南芥硝酸盐再分配及氮效率的影响 |
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| 引用本文： | 余音,廖琼,吴智敏,宋海星,官春云,张振华.NRT1.7基因突变对拟南芥硝酸盐再分配及氮效率的影响[J].湖南农业科学,2017(3). |
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| 作者姓名： | 余音 廖琼 吴智敏 宋海星 官春云 张振华 |
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| 作者单位： | 1. 湖南农业大学资源环境学院,南方粮油作物协同创新中心,湖南 长沙 410128;2. 国家油料改良中心湖南分中心,湖南 长沙,410128 |
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| 基金项目： | 国家自然科学基金项目，湖南省自然科学基金青年基金，湖南省百人计划资助项目，湖南农大1515 人才资助项目，湖南省研究生科研创新项目 |
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| 摘 要： | 以NRT1.7突变体(nrt1.7-3)和哥伦比亚野生型植株(col.0)为材料,研究NRT1.7基因对植株产量和氮素利用效率(NUE)的影响。结果表明:在花期、角果期nrt1.7-3突变体叶片SPAD值显著升高,出现滞绿现象;与幼嫩叶片相比,硝酸盐更多地累积在老叶中;nrt1.7-3植株在花期、收获期的生物量、产量和氮效率均显著下降。
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| 关 键 词： | 拟南芥 NRT1.7基因 硝酸盐 氮效率 |
Effects of NRT1.7 Gene Mutation on Nitrate Redistribution and NUE of Arabidopsis |
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| YU Yin,LIAO Qiong,WU Zhi-min,SONG Hai-xing,GUAN Chun-yun,ZHANG Zhen-hua.Effects of NRT1.7 Gene Mutation on Nitrate Redistribution and NUE of Arabidopsis[J].Hunan Agricultural Sciences,2017(3). |
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| Authors: | YU Yin LIAO Qiong WU Zhi-min SONG Hai-xing GUAN Chun-yun ZHANG Zhen-hua |
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| Abstract: | The nrt1.7-3 mutant and wild-type (col 0) were used as materials to study the effects of NRT1.7 on plant yield and NUE of Arabidopsis. The results showed that, compared to wild-type, nrt1.7-3 mutant had increased leaf SPAD value and aggravated blade green in flowering and pod stage. Compared to the younger leaves, more nitrate was distributed in the old leaves. biomass, plant yield and nitrogen use efficiency of nrt1.7-3 mutant were significantly reduced in flowering and harvesting stages. |
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| Keywords: | Arabidopsis NRT1 7 gene nitrate nitrogen efficiency |
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