Influence of sulfur on the accumulation of mercury in rice plant (Oryza sativa L.) growing in mercury contaminated soils
文献类型：期刊论文
| 作者 | Zheng L(郑雷) ; Gao YX(高愈希); Li, YY; Zhao, JT; Guo, JX; Liu, MJ; Xu, QL; Li, H; Li, YF; Zheng, L
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017 |
| 卷号 | 182页码:293-300 |
| 关键词 | Sulfur Mercury Rice SR-XANES |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2017.04.129 |
| 文献子类 | Article |
| 英文摘要 | Sulfur (S) is an essential element for plant growth and its biogeochemical cycling is strongly linked to the species of heavy metals in soil. In this work, the effects of S (sulfate and elemental sulfur) treatment on the accumulation, distribution and chemical forms of Hg in rice growing in Hg contaminated soil were investigated. It was found that S could promote the formation of iron plaque on the root surface and decrease total mercury (T-Hg) and methylmercury (MeHg) accumulation in rice grains, straw, and roots. Hg in the root was dominated in the form of RS-Hg-SR. Sulfate treatment increased the percentage of RS-Hg-SR to T-Hg in the rice root and changed the Hg species in soil. The dominant Hg species (70%) in soil was organic substance bound fractions. Sulfur treatment decreased Hg motility in the rhizosphere soils by promoting the conversion of RS-Hg-SR to HgS. This study is significant since it suggests that low dose sulfur treatment in Hg-containing water irrigated soil can decrease both T-Hg and MeHg accumulation in rice via inactivating Hg in the soil and promoting the formation of iron plaque in rice root, which may reduce health risk for people consuming those crops. (C) 2017 Published by Elsevier Ltd. |
| 电子版国际标准刊号 | 1879-1298 |
| WOS关键词 | SULFATE-REDUCING BACTERIA ; METHYLMERCURY EXPOSURE ; IRON PLAQUE ; METHYLATION ; SPECIATION ; SEDIMENTS ; CHINA ; TRANSFORMATION ; TRANSLOCATION ; ASSIMILATION |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000403991700035 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284976]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zheng L,Gao YX,Li, YY,et al. Influence of sulfur on the accumulation of mercury in rice plant (Oryza sativa L.) growing in mercury contaminated soils[J]. CHEMOSPHERE,2017,182:293-300. |
| APA | 郑雷.,高愈希.,Li, YY.,Zhao, JT.,Guo, JX.,...&李云云.(2017).Influence of sulfur on the accumulation of mercury in rice plant (Oryza sativa L.) growing in mercury contaminated soils.CHEMOSPHERE,182,293-300. |
| MLA | 郑雷,et al."Influence of sulfur on the accumulation of mercury in rice plant (Oryza sativa L.) growing in mercury contaminated soils".CHEMOSPHERE 182(2017):293-300. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。