| 盐胁迫对小麦萌发期幼苗抗氧化酶系统的影响 |
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| 引用本文： | 张敏,蔡瑞国,韩金玲,武宝悦,乔亚科,梁梅. 盐胁迫对小麦萌发期幼苗抗氧化酶系统的影响[J]. 河北科技师范学院学报, 2010, 24(3): 15-18,27 |
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| 作者姓名： | 张敏 蔡瑞国 韩金玲 武宝悦 乔亚科 梁梅 |
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| 作者单位： | 河北科技师范学院生命科技学院,河北,秦皇岛,066600;河北省邢台市农业局 |
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| 基金项目： | 河北科技师范学院博士基金 |
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| 摘 要： | 为了解盐胁迫对小麦萌发期幼苗抗氧化酶系统的影响,选择不同抗盐性的小麦品种德抗961和泰山9818,研究了盐胁迫下小麦萌发期幼苗3~13 d抗氧化酶活性的变化。结果表明:随着盐胁迫浓度的增大,德抗961幼苗的SOD,POD和APX的活性增加,CAT活性7天后也增加,泰山9818幼苗这几个酶的变化趋势存在差别。随着胁迫时间的延长,2品种的SOD和APX活性各处理都表现为随着盐胁迫时间的延长而降低,POD上升,CAT先升后降。推测超氧阴离子在前期积累较多,而过氧化氢在后期较多。在整个胁迫过程中,抗盐品种的POD和CAT活性一直高于普通品种,可见,POD和CAT与抗盐性联系密切。
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| 关 键 词： | 小麦 盐胁迫 抗氧化酶 |
Effects of Salt Stress on the Activities of Antioxidant Enzymes in Wheat Seeding |
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| ZHANG Min,CAI Rui-guo,HAN Jin-ling,WU Bao-yue,QIAO Ya-ke,LIANG Mei. Effects of Salt Stress on the Activities of Antioxidant Enzymes in Wheat Seeding[J]. Journal of Hebei Normal University of Science & Technology, 2010, 24(3): 15-18,27 |
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| Authors: | ZHANG Min CAI Rui-guo HAN Jin-ling WU Bao-yue QIAO Ya-ke LIANG Mei |
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| Affiliation: | ZHANG Min1,CAI Rui-guo1,HAN Jin-ling1,WU Bao-yue1,QIAO Ya-ke1,LIANG Mei2(1 College of Life Science and Technology,Hebei Normal University of Science & Technology,Qinhuangdao Hebei,066600,2 Agricultural Bureau of Xingtai City,China) |
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| Abstract: | In this study,two wheat cultivars(DK961 and TS9818) were selected to study the effects of salt stress on the antioxidant enzymes of cultured wheat seedling of 3-13 days.The results showed that the activities of SOD,POD and APX enhanced with the increase of salt stress level and CAT activity also improved after seven days of culture in DK961.As to TS9818,the influence of salt stress on antioxidant enzymes varied with enzyme types.With the extension of salt stress time,the activities of SOD and APX declined,w... |
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| Keywords: | wheat salt stress antioxidant enzyme |
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