| NaCl胁迫对中华补血草活性氧清除能力的影响 |
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| 引用本文： | 张侠,尹海波,陈世华,李丽霞,赵吉强,郭善利.NaCl胁迫对中华补血草活性氧清除能力的影响[J].安徽农业科学,2012,40(21):10837-10839. |
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| 作者姓名： | 张侠 尹海波 陈世华 李丽霞 赵吉强 郭善利 |
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| 作者单位： | 烟台大学生命科学学院,山东烟台,264005;烟台大学生命科学学院,山东烟台,264005;烟台大学生命科学学院,山东烟台,264005;烟台大学生命科学学院,山东烟台,264005;烟台大学生命科学学院,山东烟台,264005;烟台大学生命科学学院,山东烟台,264005 |
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| 基金项目： | 山东省科技攻关计划资助项目，山东省自然科学基金青年基金资助项目，烟台大学博士启动基金资助项目 |
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| 摘 要： | 目的]探讨NaCl胁迫对中华补血草活性氧清除能力的影响。方法]用500 mmol/L NaCl对中华补血草进行处理,分别测定叶片渗透势,MDA含量以及过氧化氢酶(CAT)、过氧化物酶(POD)和超氧化物歧化酶(SOD)的活性。结果]MDA含量能维持较低水平,但在处理5 d时达到最高点,而3种抗氧化酶活性呈先升高后下降的趋势,在处理的第5天降至最低,与MDA含量测定结果一致。结论]补血草在短时间NaCl处理时能依靠抗氧化酶系统及时清除活性氧,减少氧化损伤,维持生长。
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| 关 键 词： | 补血草(Limonium sinense Kuntze) 活性氧 NaCl胁迫 |
Effects of NaCl Stress on the Scavenging Activity of Limonium sinense Kuntze to Reactive Oxygen Species |
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| Institution: | ZHANG Xia et al(College of Life Sciences,Yantai University,Yantai,Shandong 264005) |
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| Abstract: | Objective] To discuss the effects of NaCl stress on the scavenging activity of Limonium sinense Kuntze to reactive oxygen species(ROS).Method] After L.sinense seedlings were treated by 500 mmol/L NaCl,the osmotic potential of leaves,content of MDA,and activities of catalyses(CAT),peroxidase(POD),superoxside dismutase(SOD) were investigated.Result] The content of MDA maintained a relatively low level,while it reached the maximum value after treatment for 5 days.The antioxidase activities increased first and then decreased,and reduced to the minimum level after treatment for 5 days,which was consistent with the results of MDA content.Conclusion] Depending on antioxidant enzyme system,L.sinense could scavenge reactive oxygen species,reduce oxidative damage and maintain growth during a short period under NaCl stress. |
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| Keywords: | Limonium sinense Kuntze ROS NaCl stress |
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