| 硝酸盐胁迫下外源脱落酸对黄瓜幼苗生长及抗氧化酶活力的影响 |
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| 引用本文： | 王敏,王秀峰,夏燕飞,陈柔彤.硝酸盐胁迫下外源脱落酸对黄瓜幼苗生长及抗氧化酶活力的影响[J].山东农业科学,2012,44(3):21-24,28. |
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| 作者姓名： | 王敏 王秀峰 夏燕飞 陈柔彤 |
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| 作者单位： | 1. 山东农业大学园艺科学与工程学院,山东泰安,271018
2. 山东农业大学园艺科学与工程学院,山东泰安271018;农业部黄淮地区园艺作物生物学与种质创制重点实验室,山东泰安271018 |
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| 基金项目： | 国家自然科学基金项目(30471187、30871705);国家大宗蔬菜产业技术体系岗位专家经费资助 |
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| 摘 要： | 采用水培方法研究了外源脱落酸对硝酸盐胁迫下黄瓜幼苗生长及抗氧化酶活力的影响。结果表明:硝酸盐胁迫显著抑制了黄瓜幼苗的生长,尤其是地上部分的生长。在黄瓜幼苗两叶一心和三叶一心时,与对照相比喷施不同浓度外源ABA的黄瓜幼苗超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(APX)等抗氧化酶的活力均发生不同程度的变化,丙二醛(MDA)含量总体降低。
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| 关 键 词： | ABA 硝酸盐胁迫 黄瓜幼苗 抗氧化酶活力 |
Effects of Exogenous ABA on Growth of Cucumber Seedlings and Activities of Antioxidant Enzymes under Nitrate Stress |
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| WANG Min
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WANG Xiu-feng
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XIA Yan-fei
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CHEN Rou-tong.Effects of Exogenous ABA on Growth of Cucumber Seedlings and Activities of Antioxidant Enzymes under Nitrate Stress[J].Shandong Agricultural Sciences,2012,44(3):21-24,28. |
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| Authors: | WANG Min WANG Xiu-feng XIA Yan-fei CHEN Rou-tong |
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| Institution: | 1 (1.College of Horticulture Science and Engineering,Shandong Agricultural University,Taian 271018,China; 2.Key Laboratory of Horticultural Crop Biology and Germplasm Innovation,Huanghuaihai, Ministry of Agriculture,Taian 271018,China) |
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| Abstract: | The water culture method was adopted to study the effects of exogenous ABA on the growth of cucumber seedlings and activities of antioxidant enzymes under nitrate stress.The results showed that the nitrate stress inhibited the growth of cucumber seedlings significantly,especially the growth of aboveground.Compared to the check,spraying different concentrations of exogenous ABA could alter the activity of SOD and APX in varying degrees,and decrease the content of MDA in cucumber seedlings with two or three leaves. |
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| Keywords: | ABA Nitrate stress Cucumber seedling Antioxidant enzyme activity |
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