| 砷胁迫对小麦根系生长及活性氧代谢的影响 |
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| 引用本文： | 朱云集,王晨阳,马元喜,夏国军,王永华.砷胁迫对小麦根系生长及活性氧代谢的影响[J].生态学报,2000,20(4):707-710. |
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| 作者姓名： | 朱云集 王晨阳 马元喜 夏国军 王永华 |
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| 作者单位： | 1. 国家小麦工程技术研究中心,郑州,450002
2. 河南农业大学,郑州,450002 |
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| 基金项目： | 国家自然科学基金项目!(编号 39178489)的部分内容 |
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| 摘 要： | 在水培和盆载条件下研究了砷对小麦根系生长及活性氧代谢的影响。结果表明：随砷浓度的提高，小麦胚根、次生根条数减少，总根长度、胚芽长度缩短、根体积、干重也较对照冯少超氧物歧化酶（ＳＯＤ）活性下降趋势，质脂过氧化产物（ＭＤＡ）含理增加，质膜相对透性增大、泪科越冬期，拔节期、灌浆期表现出同样的趋势。
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| 关 键 词： | 小麦 砷胁迫 活性氧代谢 根系生长 土壤污染 |
| 收稿时间： | 4/4/1998 12:00:00 AM |
Effect of arsenic stress on the growth and metabolism of the wheat root system |
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| ZHU Yunji,WANG Chenyang,MA Yuanxi,XIA Guojun and WANG Yonghua.Effect of arsenic stress on the growth and metabolism of the wheat root system[J].Acta Ecologica Sinica,2000,20(4):707-710. |
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| Authors: | ZHU Yunji WANG Chenyang MA Yuanxi XIA Guojun and WANG Yonghua |
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| Institution: | National Engineering Research Centre for Wheat; Zhengzhou; China |
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| Abstract: | Effect of arsenic stress on the growth of root system and metabolism of active oxygen were studied in water planting and pot culture experiments.The results indicated that with the increased As concentrations,the number of radicle and the secondary root decreased,and the total length of root shortened,and the volume and weight of root became less,the activity of SOD tended to drop.The content of MDA went up and the relative permeability of plasma membrane rose,with the increasing of the concentration of arsenic.The same tendency was also observed at the over wintering stage,jointing stage and filling stage of wheat development. |
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| Keywords: | wheat arsenic stress root system metabolism of active oxygen |
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