刘云霞;周益奇;董妍;孙国新;

• 1:中国科学院生态环境研究中心

摘要(Abstract)：

采用接种和不接种菌根真菌(Glomus mosseae)两种模式,研究了菌根真菌对旱稻中砷积累的影响。结果表明接种菌根真菌能够明显提高旱稻地上部磷的含量(对照0.84g·kg-1,接种2.23g·kg-1)和地下部(对照0.76g·kg-1,接种1.04g·kg-1)对磷的吸收;降低地上部(对照2.40mg·kg-1,接种0.69mg·kg-1)和地下部(对照8.90mg·kg-1,接种4.87mg·kg-1)中砷的积累;提高磷从地下部向地上部的转运能力,从而有效抑制了砷从地下部到地上部的传输。进一步研究发现,菌根真菌还可以降低土壤溶液中AsIII和总砷含量,即菌根真菌能够降低水稻可获得的砷含量,从而减少砷对人体健康的威胁。

关键词(KeyWords)： 水稻;砷;菌根真菌

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(No.40973058);; 国家水体污染控制与治理科技重大专项(2009ZX07212-001-05)

作者(Author): 刘云霞;周益奇;董妍;孙国新;

Email:

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