Impact of Rhizosphere Biostimulation on Cd Transport and Isotope Fractionation in Cd-Tolerant and Hyperaccumulating Plants Based on MC-ICP-MS and NanoSIMS
文献类型：期刊论文
| 作者 | Wei, Rongfei7; Liu, Yizhang6; Kang, Fengxin7; Tian, Liyan5; Wei, Qiang7; Li, Zhiying4; Xu, Pei7; Hu, Huiying7; Tan, Qiyu3; Zhao, Changqiu7 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2024-10-16 |
| 卷号 | N/A |
| 关键词 | Cd isotope fractionation hyperaccumulator phytoremediation heavy metals pollution |
| DOI | 10.1021/acs.est.4c03674 |
| 产权排序 | 1 |
| 英文摘要 | Phytoremediation efficiency can be enhanced by regulating rhizosphere processes, and the Cd isotope is a useful approach for deciphering Cd transport processes in soil-plant systems. However, the effects of adsorption and complexation on Cd isotope fractionation during the rhizosphere processes remain unclear. Here, we cultivated the Cd hyperaccumulator Sedum alfredii and Cd-tolerance Sedum spectabile in three different soils with citric acid applied as a degradable rhizosphere biostimulant. Cellular elemental distributions in the tissues and Cd isotope compositions were determined through NanoSIMS and MC-ICP-MS, respectively. Cd precipitation/adsorption on cell walls and intracellular regional distribution were the main mechanisms of Cd tolerance in S. spectabile. Plant roots became enriched with heavier Cd isotopes relative to the surrounding soils upon increasing secretion of rhizosphere organic acids. This indicates that organic matter with O and N functional groups preferentially chelates heavy Cd isotopes. In addition, Cd isotope fractionation between roots and shoots varies within the three soils, which could be due to the influence of protein and metallothionein contents in roots and leaves. The finding indicates that sulfur-containing ligands preferentially chelate light Cd isotopes. This study suggests that organic ligands play a vital role in Cd isotope fractionation and consequent hyperaccumulation of soil-plant systems. |
| WOS关键词 | SUBCELLULAR-DISTRIBUTION ; CADMIUM UPTAKE ; SEDUM-ALFREDII ; SOIL ; LOCALIZATION ; ZINC ; ACCUMULATION ; METALS ; PHYTOEXTRACTION ; SEQUESTRATION |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001335274400001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208205]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100101, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 230046, Peoples R China 3.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Peoples R China 5.Chinese Acad Sci, Inst Proc Engn, Beijing 100101, Peoples R China 6.Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Rongfei,Liu, Yizhang,Kang, Fengxin,et al. Impact of Rhizosphere Biostimulation on Cd Transport and Isotope Fractionation in Cd-Tolerant and Hyperaccumulating Plants Based on MC-ICP-MS and NanoSIMS[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2024,N/A. |
| APA | Wei, Rongfei.,Liu, Yizhang.,Kang, Fengxin.,Tian, Liyan.,Wei, Qiang.,...&Guo, Qingjun.(2024).Impact of Rhizosphere Biostimulation on Cd Transport and Isotope Fractionation in Cd-Tolerant and Hyperaccumulating Plants Based on MC-ICP-MS and NanoSIMS.ENVIRONMENTAL SCIENCE & TECHNOLOGY,N/A. |
| MLA | Wei, Rongfei,et al."Impact of Rhizosphere Biostimulation on Cd Transport and Isotope Fractionation in Cd-Tolerant and Hyperaccumulating Plants Based on MC-ICP-MS and NanoSIMS".ENVIRONMENTAL SCIENCE & TECHNOLOGY N/A(2024). |
入库方式： OAI收割
来源：地理科学与资源研究所
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。