| 盐胁迫下两种草坪草膜脂过氧化和抗氧化酶比较 |
| |
| 作者姓名： | R. XU M. YAMADA H. FUJIYAMA |
| |
| 作者单位： | United Graduate School of Agricultural Sciences,Tottori University;Faculty of Agriculture,Tottori University |
| |
| 基金项目： | 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： | antioxidants malondialdehyde oxidative stress recycled wastewater salt tolerance |
| 收稿时间： | 18 June 2012 |
Lipid peroxidation and antioxidative enzymes of two turfgrass species under salinity stress |
| |
| R. XU,M. YAMADA,H. FUJIYAMA.Lipid peroxidation and antioxidative enzymes of two turfgrass species under salinity stress[J].Pedosphere,2013,23(2):213-222. |
| |
| Authors: | R XU M YAMADA and H FUJIYAMA |
| |
| Institution: | 1. United Graduate School of Agricultural Sciences, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8553,Japan
2. Faculty of Agriculture, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8553,Japan |
| |
| Abstract: | 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. |
| |
| Keywords: | antioxidants malondialdehyde oxidative stress recycled wastewater salt tolerance |
| 本文献已被 CNKI 万方数据 ScienceDirect 等数据库收录！ |
| 点击此处可从《土壤圈》浏览原始摘要信息 |
| 点击此处可从《土壤圈》下载免费的PDF全文 |
|
