Effects of salt-alkali stress on active oxygen metabolism in roots of Spiraea × bumalda 'Gold Mound' and Spiraea × bumalda 'Gold Flame'

查看全文 作　　者：YAN Yong-qing CHE Dai-di SHI Xi-chan LIU Xing-[1]liang

机构地区：[1]College of Horticulture, Northeast Agricultural University, Harbin 150030, P. R. China.

出　　处：《Journal of Forestry Research》索引2011年第22卷第1期,共6页

基　　金：supported by Innovation Team Project of Northeast Agricultural University of P. R. China (CXZ004-3);Science Foundation of Heilongjiang Province (C2007-16) 摘　　要：Under artificially-simulated complex salt-alkali stress, the levels of active oxygen metabolism in roots were studied using three-year-old cutting seedlings of Spiraea × bumalda 'Gold Mound' and Spiraea × bumalda 'Gold Flame'. The present study aimed at exploring the antioxidant capacity in roots of spiraeas and revealing their adaptability to salt-alkali stress. Results indicate that the oxygen free radicals contents, electrolyte leakage rates and MDA contents in roots of Spiraea × bumalda 'Gold Mound' and Spiraea × bumalda 'Gold Flame' show an increasing tendency with the increases of the salinity and pH value, whereas the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) all increased firstly and then decreased. With the increase in intensity of salt-alkali stress, the CAT activity in roots of Spiraea × bumalda 'Gold Flame' is higher and the increasing extents in the oxygen free radicals contents, electrolyte leakage rates as well as MDA contents are lower compared with Spiraea × bumalda 'Gold Mound', indicating that Spiraea × bumalda 'Gold Flame' has a stronger antioxidant capacity. 关键词：珍珠绣线菊活性氧代谢珍珠花碱胁迫黄金火焰复盐影响效果

相关文献

参考文献（15）
引证文献（2）
耦合文献（73）

参考文献(15)

引证文献(2)

耦合文献(73)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Effects of salt-alkali stress on active oxygen metabolism in roots of Spiraea × bumalda 'Gold Mound' and Spiraea × bumalda 'Gold Flame'

参考文献(15)

引证文献(2)

耦合文献(73)

用户提示