Lipid Peroxidation and Antioxidative Enzymes of Two Turfgrass Species Under Salinity Stress

查看全文 作　　者：[1]R.XU;[2]M.YAMADA;[2]H.FUJIYAMA

机构地区：[1]United Graduate School of Agricultural Sciences,Tottori University;[2]Faculty of Agriculture,Tottori University

出　　处：《Pedosphere》索引2013年第23卷第2期,共10页

基　　金：Supported by the Global Center of Excellence for Dryland Science from the Ministry of Education,Science,Culture,Sports and Technology of Japan 摘　　要：Salinity stress is a major factor limiting the growth of turfgrass irrigated with recycled wastewater. The change in lipid peroxidation in terms of malondialdehyde (MDA) content and the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxide (APX) and glutathione reductase (GR) in the shoots and roots of Kentucky bluegrass and tall fescue were investigated under salinity stress. Plants were subjected to 0, 50, 100, 150 and 200 mmol L 1 NaCl for 40 d. The MDA content under salinity stress was lower in tall fescue than in Kentucky bluegrass in both shoots and roots. Activities of SOD in the shoots of both species increased with salinity stress. The activities of CAT and APX decreased in Kentucky bluegrass, but no significant difference in the activities of CAT and APX was observed in tall fescue. The activities of SOD, CAT and APX in the shoots of tall fescue were higher than those in Kentucky bluegrass. In the roots of Kentucky bluegrass, SOD and GR activities increased and CAT and APX activities decreased in comparison with the control. In the roots of tall fescue, salinity increased the activities of SOD, CAT, and APX. These results suggested that tall fescue exhibited a more effective protection mechanism and mitigated oxidative stress and lipid peroxidation by maintaining higher SOD, CAT and APX activities than Kentucky bluegrass. 关键词：脂质过氧化草坪植物盐胁迫抗氧化酶超氧化物歧化酶抗坏血酸过氧化物酶草地早熟禾谷胱甘肽还原酶

相关文献

参考文献（50）
引证文献（7）
耦合文献（1）

参考文献(50)

引证文献(7)

耦合文献(1)

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

Lipid Peroxidation and Antioxidative Enzymes of Two Turfgrass Species Under Salinity Stress

参考文献(50)

引证文献(7)

耦合文献(1)

用户提示