Multifunctional Roles of Zinc in Cadmium Transport in Soil-Rice Systems: Novel Insights from Stable Isotope Fractionation and Gene Expression
文献类型：期刊论文
| 作者 | Zhong, Songxiong5; Li, Xiaomin2,3; Fang, Liping5; Bai, Jianghao4; Gao, Ruichuan5; Huang, Yao5; Huang, Yingmei5; Liu, Yuhui5; Liu, Chuanping5; Yin, Haoming1 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2024-07-05 |
| 卷号 | 58期号:28页码:12467-12476 |
| 关键词 | uptake and transport isotope fractionation Zn Cd soil-rice system transporter |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.4c01851 |
| 英文摘要 | The effect of Zn on Cd accumulation in rice varies under flooding and drainage conditions, and the underlying mechanism during uptake and transport from the soil to grains remains unclear. Isotope fractionation and gene expression were investigated using pot experiments under distinct water regimes and with Zn addition to gain a deeper understanding of the molecular effects of Zn on Cd uptake and transport in rice. The higher OsHMA2 expression but constitutively lower expression of zinc-regulated, iron-regulated transporter-like protein (ZIP) family genes in roots under the drainage regime than the flooding regime caused the enrichment of nonheavy Zn isotopes in the shoots relative to roots but minimally affected Cd isotopic fractionation. Drainage regime seem to exert a striking effect on the root-to-shoot translocation of Zn rather than Cd, and increased Zn transport via OsHMA2. The changes in expression patterns in response to Zn addition were similar to those observed upon switching from the flooding to drainage regime, except for OsNRAMP1 and OsNRAMP5. However, soil solution-to-rice plants and root-to-shoot fractionation toward light Zn isotopes with Zn addition (Delta Zn-66(rice plant-soil solution) = -0.49 to -0.40 parts per thousand, Delta Zn-66(shoot-root) = -0.36 to -0.27 parts per thousand) indicated that Zn transport occurred via nonspecific uptake pathways and OsHMA2, respectively. Accordingly, the less pronounced and minimally varied Cd isotope fractionation suggested that OsNRAMP5 and OsHMA2 are crucial for Cd uptake and root-to-shoot transport, respectively, facilitating Cd accumulation in grains. This study demonstrated that a high Zn supply promotes Cd uptake and root-to-shoot transport in rice by sharing distinct pathways, and by utilizing a non-Zn-sensitive pathway with a high affinity for Cd. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001263991100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78288]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Li, Fangbai |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China 2.South China Normal Univ, SCNU Environm Res Inst, Guangdong Prov Key Lab Chem Pollut & Environm Safe, Guangzhou 510006, Peoples R China 3.South China Normal Univ, MOE Key Lab Theoret Chem Environm, Guangzhou 510006, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 5.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Songxiong,Li, Xiaomin,Fang, Liping,et al. Multifunctional Roles of Zinc in Cadmium Transport in Soil-Rice Systems: Novel Insights from Stable Isotope Fractionation and Gene Expression[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2024,58(28):12467-12476. |
| APA | Zhong, Songxiong.,Li, Xiaomin.,Fang, Liping.,Bai, Jianghao.,Gao, Ruichuan.,...&Li, Fangbai.(2024).Multifunctional Roles of Zinc in Cadmium Transport in Soil-Rice Systems: Novel Insights from Stable Isotope Fractionation and Gene Expression.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(28),12467-12476. |
| MLA | Zhong, Songxiong,et al."Multifunctional Roles of Zinc in Cadmium Transport in Soil-Rice Systems: Novel Insights from Stable Isotope Fractionation and Gene Expression".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.28(2024):12467-12476. |
入库方式： OAI收割
来源：广州地球化学研究所
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