华北农学报 ›› 2009, Vol. 24 ›› Issue (4): 153-157. doi: 10.7668/hbnxb.2009.04.030

所属专题: 杂粮作物 抗旱节水

• 论文 • 上一篇    下一篇

干旱胁迫对荞麦幼苗活性氧代谢的影响

巩巧玲, 冯佰利, 高金锋, 柴岩, 石虎, 周继华   

  1. 西北农林科技大学, 小宗粮豆研究中心, 陕西杨凌 712100
  • 收稿日期:2009-02-23 出版日期:2009-08-28
  • 通讯作者: 冯佰利(1966-),男,陕西耀县人,教授,博士,博士生导师,主要从事作物高产生态生理技术及小杂粮栽培、品种资源、育种及产业化开发研究。
  • 作者简介:巩巧玲(1983-),女,河南安阳人,硕士,主要从事作物高产生态生理研究.
  • 基金资助:
    科技部科技支撑计划(2006BAD02B06);国家高技术研究发展计划("863"计划)项目(2006AA100201);西北农林科技大学植物遗传育种专项资助

Effects of Drought Stress on Active Oxygen Metabolism of Buckwheat Seedling

GONG Qiao-ling, FENG Bai-li, GAO Jin-feng, CHAI Yan, SHI Hu, ZHOU Ji-hua   

  1. Research Center for Minor Cereals and Beans, Northwest Agricultural and Forestry University, Yangling 712100, China
  • Received:2009-02-23 Published:2009-08-28

摘要: 以4个荞麦品种为材料,采用PEG模拟干旱胁迫方法,研究了干旱胁迫对荞麦幼苗生长发育的影响.结果表明,随着胁迫强度和胁迫时间的延长,叶绿素含量逐渐下降,SOD、POD与CAT活性均表现为先升后降趋势、而MDA含量呈现上升趋势;与其他荞麦品种相比,西农9976具有较高的叶绿素含量,SOD、POD与CAT活性峰值最大,且活性最高值出现时间最晚,后期维持较高的酶活性,同时具有较低的MDA含量.

关键词: 干旱胁迫, 荞麦幼苗, 保护酶活性

Abstract: The effects of drought stress on growth and development of buckwheat seedling were treated with the osmotic stress solution PEGwere studied using four tartary buckwheat cultivars. The results showed that with the intensification and the time delay of drought,content of chlorophyll decreased gradually,and activities of superoxide dismutase (SOD),peroxi2 dase (POD),catalase (CAT) increased first then decreased,and content of malondialdephyde (MDA) increased gradually. Compared to other three tartary buckwheat cultivars,Xinong 9976 had the higher content of chlorophyll and the activities peak of dismutase (SOD),peroxidase (POD),catalase (CAT),the maximum value of activities was delayed,Xinong 9976 kept up the heigher Activities of protective enzymes and had a lower content of malondialdephyde (MDA).

Key words: Drought stress, Buckwheat seedling, Activities of protective enzymes

中图分类号: 

引用本文

巩巧玲, 冯佰利, 高金锋, 柴岩, 石虎, 周继华. 干旱胁迫对荞麦幼苗活性氧代谢的影响[J]. 华北农学报, 2009, 24(4): 153-157. doi: 10.7668/hbnxb.2009.04.030.

GONG Qiao-ling, FENG Bai-li, GAO Jin-feng, CHAI Yan, SHI Hu, ZHOU Ji-hua. Effects of Drought Stress on Active Oxygen Metabolism of Buckwheat Seedling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(4): 153-157. doi: 10.7668/hbnxb.2009.04.030.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2009.04.030

               http://www.hbnxb.net/CN/Y2009/V24/I4/153