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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:

第44卷

期数:

2016年12期

页码:

465-467

栏目:

资源与环境

出版日期:

2016-12-25

文章信息/Info

Title:

Potentiation of nitrate reductase-mediated nitric oxide to aluminum tolerance of plants

作者:

王华华; 李焱; 候俊杰

河南师范大学生命科学学院，河南新乡 453007

Author(s):

Wang Huahua; et al

关键词:

一氧化氮; 铝毒害; 硝酸还原酶; 一氧化氮突变体; 耐受性

Keywords:

-

分类号:

Q945.78

DOI:

-

文献标志码:

A

摘要:

以拟南芥野生型、一氧化氮(NO)产生途径相关突变体Atnoa1(NO合成酶缺失突变体)和nialnia2(硝酸还原酶缺失突变体)为材料，研究铝毒害对拟南芥野生型、Atnoa1和nialnia2的影响。试验结果显示，不同浓度(0～200 μmol/L)AlCl₃处理抑制了拟南芥中根的生长，野生型和Atnoa1突变体表现出一致的抑制趋势，而nialnia2突变体中根生长的抑制程度更严重。进一步的结果显示，AlCl₃处理增加了拟南芥中丙二醛和活性氧(H₂O₂和O^-₂· )含量，野生型和Atnoa1突变体表现出一致的增加趋势，而nialnia2突变体中丙二醛和活性氧含量增加幅度更大；此外，AlCl₃处理显著增加了拟南芥中还原型抗坏血酸(AsA)和谷胱甘肽(GSH)的含量，野生型和Atnoa1突变体表现出一致的增加趋势，而nialnia2突变体中AsA和GH含量增加幅度最小。这些结果表明，硝酸还原酶途径介导的NO在增强植物抗铝毒害过程中起着重要的作用。

Abstract:

-

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期：2016-02-11
基金项目：国家自然科学基金(编号：31301252)；河南师范大学优秀青年科学基金(编号：14YQ003)；河南师范大学博士启动课题(编号：11129)；河南省高校科技创新团队支持计划(编号：15IRTSTHN020)。
作者简介：王华华(1980—)，男，湖北汉川人，博士，副教授，主要从事植物逆境生理研究。E-mail：hhwang04@163.com。

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更新日期/Last Update: 2016-12-25