Characteristics of cadmium translocation and isotope fractionation in Ricinus communis seedlings: Effects from split/cut-root and limited nutrients
文献类型：期刊论文
| 作者 | Wei, Rongfei1; Guo, Qingjun1,2; Zhang, Qian1; Ma, Jie3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 819页码:10 |
| ISSN号 | 0048-9697 |
| 关键词 | Cadmium Isotope fractionation Ricinus communis Translocation Heavy metal |
| DOI | 10.1016/j.scitotenv.2021.152493 |
| 通讯作者 | Guo, Qingjun(guoqj@igsnrr.ac.cn) |
| 英文摘要 | Studying cadmium (Cd) transport in plants will improve the current understanding of Cd tolerance mechanisms. Due to the influence of analytical techniques, the application of Cd isotopes in plants is still in its early stages. Therefore, the relationships between Cd isotope fractionation and Cd translocation in plants remain unclear. In this study, we cultured Ricinus communis in hydroponic solutions during split/cut-root experiments and limited and infinite nutrient experiments. To understand the Cd transport process, the Cd2+ and other ion concentrations in different tissues (i.e., roots, stems, and leaves) and nutrient solutions, Cd isotope composition and the soluble protein in tissues were measured. The results showed that although significant effects were evident in the top leaves, the principal roots had less pronounced effects on Cd2+ translocation in the stems. Moreover, Cd underwent homolateral transport before it was translocated from the principal roots to the leaves on the side without Cd. It was apparent that the stems were responsible for translocating Cd2+ in plants. In addition, the continuous supply of high Cd2+ concentrations inhibited the growth of the top leaves, while in low Cd2+ concentrations, it was gradually transferred to the top leaves. Moreover, the tissues of R. communis were enriched with lighter Cd isotopes compared with the solutions. The clear differences between the Cd isotope fractionation of leaves under infinite and limited nutrient experiments may be attributed to plant growth and Cd uptake rates. This study provides important information for understanding Cd2+ translocation in R. communis and furthers our understanding of its tolerance and hyperaccumulation. |
| WOS关键词 | SUBCELLULAR-DISTRIBUTION ; CALCIUM-CHANNELS ; CD TRANSLOCATION ; CHEMICAL FORMS ; ACCUMULATION ; TOLERANCE ; SOIL ; XYLEM ; PLANTS ; ZINC |
| 资助项目 | National Natural Science Foundation of China[42073012] ; Beijing Natural Science Foundation[8212036] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000766801900013 |
| 资助机构 | National Natural Science Foundation of China ; Beijing Natural Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/171604]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Rongfei,Guo, Qingjun,Zhang, Qian,et al. Characteristics of cadmium translocation and isotope fractionation in Ricinus communis seedlings: Effects from split/cut-root and limited nutrients[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,819:10. |
| APA | Wei, Rongfei,Guo, Qingjun,Zhang, Qian,&Ma, Jie.(2022).Characteristics of cadmium translocation and isotope fractionation in Ricinus communis seedlings: Effects from split/cut-root and limited nutrients.SCIENCE OF THE TOTAL ENVIRONMENT,819,10. |
| MLA | Wei, Rongfei,et al."Characteristics of cadmium translocation and isotope fractionation in Ricinus communis seedlings: Effects from split/cut-root and limited nutrients".SCIENCE OF THE TOTAL ENVIRONMENT 819(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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