| 琼脂培养基质条件下砷在水稻幼苗中的积累转运 |
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| 引用本文： | 刘志彦,杨俊兴,田耀武.琼脂培养基质条件下砷在水稻幼苗中的积累转运[J].安徽农业科学,2010,38(4):1755-1758. |
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| 作者姓名： | 刘志彦 杨俊兴 田耀武 |
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| 作者单位： | 聊城大学环境与规划学院,山东聊城,252059;中山大学生命科学学院,广东广州,510275;河南科技大学林学院,河南洛阳,471003 |
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| 基金项目： | 教育部985工程环境与污染控制科技创新平台项目;;聊城大学博士科研基金项目(31805) |
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| 摘 要： | 目的]研究砷（As）在水稻幼苗中的积累转运。方法]利用琼脂培养基质模拟厌氧的湿地环境,在不同As浓度条件下对水稻幼苗进行培养。结果]培养基质中的As对水稻根部干重没有显著影响,对地上部干重产生了显著抑制作用。低剂量的As可以促进部分水稻品种干物质的积累。水稻根系对As具有较强的吸收积累能力,As被根系吸收后多数被固定于根部,只有少量被转运至茎叶,二者呈极显著正相关关系。结论]该结果为进一步研究As在水稻中的积累转运规律提供了重要的理论依据。
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| 关 键 词： | 砷(As) 水稻 琼脂培养基质 积累 转运 |
Accumulation and Translocation of Arsenic in Rice Seedlings under Agar Culture Media |
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| LIU Zhi-yan et al.Accumulation and Translocation of Arsenic in Rice Seedlings under Agar Culture Media[J].Journal of Anhui Agricultural Sciences,2010,38(4):1755-1758. |
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| Authors: | LIU Zhi-yan |
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| Institution: | College of Environment & Planning;Liaocheng University;Liaocheng;Shandong 252059 |
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| Abstract: | Objective]The research aimed to study the accumulation and translocation of As in rice seedlings.Method]Agar culture media was used to simulate the anaerobic wetland environment.The rice seedlings were cultured at different concentrations of As.Result]As in agar culture medium had no significant influence on dry weight of rice roots.However,As in agar culture medium had the significant inhibition on the dry weight of shoots.Low doses of As could enhance the accumulation of the biomass of a part of experi... |
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| Keywords: | Arsenic (As) Rice Agar culture medium Accumulation Translocation |
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