联合培养研究生武慧斌同学发表高影响因子论文

    近日，我所与华中农业大学联合培养的硕士研究生武慧斌同学在其导师唐世荣教授的指导下撰写的文章“Using elevated CO2 to increase the biomass of a Sorghum vulgare x Sorghum vulgare var. sudanense hybrid and Trifolium pratense L. and to trigger hyperaccumulation of cesium”被《Journal of hazardous materials》（中文译名《危险物质杂志》）杂志（2007年度SCI影响因子2.337）录用，论文第一作者和通讯作者单位为农业部环境保护科研监测所。本论文围绕国家自然科学基金项目（No. 40773078）的内容展开研究，发现二氧化碳浓度升高不仅大幅度提高铯胁迫条件下高丹草和三叶草的生物量，还可诱导上述两种植物超富集铯。（邓小芳供稿）

Abstract

 The most important challenge to use phytoremediation is how to improve its efficiency by increasing accumulation of metals in plants, or by improving key plant biological traits that should enhance metal uptake.  In this paper, we used open-top chambers to investigate the effects of elevated CO2 (860 µL L-1) on biomass and Cs uptake by a Sorghum vulgare x Sorghum vulgare var. sudanense hybrid and Trifolium pratense L. growing on soils spiked with various levels of cesium (0, 300, 1500 and 3000 mg Cs•kg-1).  The results showed that elevated CO2 not only increased aboveground biomass of the Sorghum and Trifolium species by 32-111%, and by 8-11%, respectively, compared to the ambient CO2 treatment, but also caused more accumulation of Cs by Sorghum species (up to 73%) than Trifolium species (up to 43%).  It was speculated that the increase in biomass and the improvement in Cs accumulation ability at elevated CO2 could be related to lowered soil pH values, and changes in number and kind of microorganisms in the rhizospheres of the two tested species.  This is the first report of a link among elevated CO2, increased biomass and hyperaccumulation of Cs by Sorghum and Trifolium species.