| 盐胁迫下小麦新品系89122的抗氧化酶类活性变化的研究 |
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| 引用本文： | 王晓娟,倪建福.盐胁迫下小麦新品系89122的抗氧化酶类活性变化的研究[J].兰州大学学报(自然科学版),1999,35(1):140-144. |
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| 作者姓名： | 王晓娟 倪建福 |
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| 作者单位： | [1]兰州大学干旱农业生态国家重点实验室 [2]甘肃省农业科学院 |
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| 基金项目： | 甘肃省1997年重点农业科技攻关项目 |
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| 摘 要： | 利用受粉后的花粉管通道将高梁ＤＮＡ导入普通小麦陇春１３号,在其后代中出现了广泛变异,从中选育出已稳定遗传的丰产、抗逆性强的新品系８９１２２。经大田和盐池鉴定,８９１２２的耐盐性明显高于陇春１３号,用ＮａＣｌ（０,０．１,０．１５,０．２,０．２５ｍｏｌ／Ｌ）处理８９１２２和陇春１３号幼苗７ｄ,测定盐胁迫后其幼苗中抗氧化酶类活性的变化。结果发现,转基因小麦８９１２２较其受体陇春１３号能维持较高的ＳＯ
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| 关 键 词： | 小麦 盐胁迫 抗氧化酶类 活性 品种 89122品系 |
Analyses of Enzymic Antioxidant Defenses in New Wheat Line 89122 under Salt Stress |
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| Wang Xiaojuan ,Qin Xincheng ,Dai Ruolan ,Wang Yafu ,Ni Jianfu ,Zhou Wenlin.Analyses of Enzymic Antioxidant Defenses in New Wheat Line 89122 under Salt Stress[J].Journal of Lanzhou University(Natural Science),1999,35(1):140-144. |
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| Authors: | Wang Xiaojuan Qin Xincheng Dai Ruolan Wang Yafu Ni Jianfu Zhou Wenlin |
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| Institution: | Wang Xiaojuan 1,Qin Xincheng 1,Dai Ruolan 1,Wang Yafu 1,Ni Jianfu 2,Zhou Wenlin 2 |
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| Abstract: | DNA of sorghum ( Sorghum bicolor ) was introduced into "Longchun No.13" ( Triticum aestivum L.) through the pollen tube pathway after self pollination. A great range of different kinds of variation occurred in the progenies of receptor and a good variation line-89122 with stabilized heredity was obtained. It gave high yield and has been identified stress-tolerance. In this study, the enzymatic antioxidant defenses in seedlings of 89122 and Longchun No.13 were analysized after both were exposed to salt stress. The activities of superoxide dismutase (SOD),catalase(CAT) and peroxidase (POD) were higher in 89122 than in Longchun No.13. These results suggest that higher activities of enzymic antioxidant defenses are associated closely with salt tolerance and they can be adopted as an index in selecting transgenic wheat. |
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| Keywords: | wheat ( Triticum aestivum L ) salt stress enzymic antioxidant defenses |
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