Acta Agrestia Sinica ›› 2017, Vol. 25 ›› Issue (2): 337-343.DOI: 10.11733/j.issn.1007-0435.2017.02.017

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Physiological Responses of Oats Seedlings to Short-term Salt Stress

GAO Cai-ting1,2, LIU Jing-hui1, ZHANG Yu-qin2, XU Shou-jun2, ZHANG Yu-xia2   

  1. 1. Agricultural College, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010019, China;
    2. Agricultural College, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China
  • Online:2017-04-15 Published:2017-06-25

短期盐胁迫下燕麦幼苗的生理响应

高彩婷1,2, 刘景辉1, 张玉芹2, 徐寿军2, 张玉霞2   

  1. 1. 内蒙古农业大学农学院, 内蒙古 呼和浩特 010019;
    2. 内蒙古民族大学农学院, 内蒙古 通辽 028000
  • 通讯作者: 刘景辉,E-mail:cauljh@163.com
  • 作者简介:高彩婷(1977-),女,博士,讲师,内蒙古托克托县人,主要从事植物抗逆性遗传改良研究,E-mail:bao79@163.com
  • 基金资助:

    国家自然科学基金项目(31060174,30660084);内蒙古自然科学基金项目(2010Zd07,200607010301);国家现代农业产业技术体系建设专项(CARS-08-B-5);内蒙古农业大学科技创新团队项目(NDTD2010-8)资助

Abstract:

To mining salt tolerant genes of oats and select salt tolerant varieties, this study used hydroponics and adopted 0 (CK), 100, 200, 250, 300 mmol·L-1 NaCl salt stress treatments on two oat varieties. The changes of membrane systems, osmotic adjustment and antioxidant activity of blade within 72 hours were monitored, and according to the changes of physiological indicators to determine physiological response mechanism of seedlings. The results showed that oats maintained the stability of bio-membranes by mobilizing its own osmotic adjustment, and resisted salt stress to a certain degree by increasing the activity of antioxidant enzymes.

Key words: Oat, Salt stress, Membrane systems, Osmoregulation feature, Antioxidant properties

摘要:

为挖掘燕麦(Avena sativa L.)耐盐基因,筛选耐盐品种,本研究利用水培法,采用0,100,200,250,300 mmol·L-1 NaCl对‘VAO-9’与‘蒙农大燕1号’两个燕麦品种幼苗进行盐胁迫处理,研究72 h内叶片质膜系统、渗透调节物质和抗氧化物酶活性变化,根据生理指标的变化判断幼苗生理响应机制。结果表明,燕麦在盐胁迫下通过调动自身渗透调节物质,维持生物膜的稳定性,提高抗氧化物酶系统的酶活性,抵御一定的盐胁迫。

关键词: 燕麦, 盐胁迫, 质膜系统, 渗透调节特性, 抗氧化特性

CLC Number: