| 外源GSH对NaCl胁迫下二色补血草盐害缓冲机理的研究 |
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| 引用本文： | 鲁丽丽,刘耕,李君,范海,赵可夫.外源GSH对NaCl胁迫下二色补血草盐害缓冲机理的研究[J].山东师范大学学报(自然科学版),2006,21(2):108-111. |
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| 作者姓名： | 鲁丽丽 刘耕 李君 范海 赵可夫 |
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| 作者单位： | 山东师范大学生命科学学院,250014,济南 |
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| 基金项目： | 法国国家自然科学基金;山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | 用外源GSH处理不同盐浓度下生长的泌盐植物二色补血草（Limonium bicolor Bge,Kuntz），比较处理前后活性氧清除系统中酶活性和抗氧化剂含量的变化,结果表明盐胁迫下，外源GSH可以明显提高补血草活性氧清除系统中SOD、CAT、APX、GR的活性以及AsA和GSH的含量，降低MDA和O2^-的含量，从而降低了细胞膜脂过氧化水平。缓解盐胁迫对细胞膜的伤害，表明二色补血草的抗盐性与活性氧清除能力的提高具密切关系．
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| 关 键 词： | 二色补血草 NaCl胁迫 活性氧 |
| 收稿时间： | 2006-01-05 |
| 修稿时间： | 2006-01-05 |
STUDY ON THE ALLEVIATORY EFFECT OF EXOGENEOUS GSH ON LIMONIUM BICOLOR UNDER NaCl STRESS |
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| Lu Lili,Liu Geng,Li Jun,Fan Hai,Zhao Kefu.STUDY ON THE ALLEVIATORY EFFECT OF EXOGENEOUS GSH ON LIMONIUM BICOLOR UNDER NaCl STRESS[J].Journal of Shandong Normal University(Natural Science),2006,21(2):108-111. |
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| Authors: | Lu Lili Liu Geng Li Jun Fan Hai Zhao Kefu |
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| Institution: | College of Life Science,Shandong Normal University, 250014, Jinan, China |
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| Abstract: | We treated a typical salt-secretion halophyte Limoniun bicolor Bge.Kuntz unefer different NaCl concentrations with or without GSH,then the contents of the ROS-scavenging enzymes and antioxidants were determined. The results show that with GSH treatment,the activities of superoxide dismutase (SOD),catalase (CAT),glutathion reductase (GR) and ascorbate peroxidase (APX),as well as the contents of glutathione (GSH) and ascorbate (ASA) in the leaves all increased,while the contents of MDA and O-_2 decreased.The results show that GSH alleviats salt injury to the membrane by lowering the peroxidation level under salt stress. The elevated salt-tolerant ability of Limonium bicolor treated with GSH could be traced to its increase of ROS-scavenging ability. |
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| Keywords: | GSH |
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