欢迎访问中国科学院大学学报,今天是

中国科学院大学学报 ›› 2003, Vol. 20 ›› Issue (2): 172-176.DOI: 10.7523/j.issn.2095-6134.2003.2.007

• 论文 • 上一篇    下一篇

两个不同海拔地区珠芽蓼抗氧化系统的比较研究(英文)

易现峰   

  1. 中国科学院西北高原生物研究所, 西宁 810001
  • 收稿日期:2002-04-22 修回日期:2002-06-25 发布日期:2003-03-10

Comparative Study on Antioxidant Systems of Polygonum Viviparum Grown at Two Different Altitudes

YI Xianfeng   

  1. Northwest Institute of Plateau Biology, The Chinese Academy of Sciences, Xining 810001, China
  • Received:2002-04-22 Revised:2002-06-25 Published:2003-03-10
  • Supported by:

    research was sponsored by National Fund of Natural Science.(39570129,30270217)

摘要:

通过对两个不同海拔地区珠芽蓼抗氧化系统的比较研究,结果表明,较高海拔地区植物叶片内抗氧化系统,如紫外线吸收色素、抗坏血酸含量以及过氧化物酶、超氧化物歧化酶和抗坏血酸过氧化酶的活性,均比低海拔地区同种植物叶片高;而丙二醛(MDA)以及超氧阴离子自由基的相对含量在较高海拔地区植物叶片内较高.两地珠芽蓼叶片内抗氧化系统的差异是植物经过长期形成的对不同地区环境的适应性反应.

关键词: 珠芽蓼, 抗氧化物系统, 不同海拔

Abstract:

Study on the antioxidant systems of Polygonum viviparumgrown at two different altitudes indicated plants grown at Haibei Research Station at 3200 m altitude as compared with plants grown in Xining at 2300 m altitude had apparently higher contents of ultroviolet-absorbing compounds and ascorbic acid, and significantly higher activities of superoxide dismutase, peroxidase and ascorbic peroxidase. Higher contents of superoxide radical anions and malonadehyde were also found in plants at Haibei Research Station as compared with the plants grown in Xining which have been transplanted from Haibei Research Station for at least four years. The differences in antioxidant system reflect a long term of time of adaptation to different environments.

Key words: Polygonum viviparum, antioxidant system, different altitudes

中图分类号: