Distinct rhizobacteria recruitment under copper stress contributes to the different copper-accumulating capacities of two Elsholtzia species (Lamiaceae)
文献类型：期刊论文
| 作者 | Li,Xiong ; Zhao,Gaojuan; Huang,Yingqi; Li,Boqun
|
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2023 |
| 关键词 | Copper pollution Lamiaceae Phytoremediation Siderophore Plant growth-promoting rhizobacteria SOIL REMEDIATION CD |
| ISSN号 | 1573-5036 |
| DOI | 10.1007/s11104-023-06017-3 |
| 英文摘要 | Background and aimsThis study aims at identifying Cu accumulators from Elsholtzia and uncovering the rhizospheric mechanisms for improving the phytoremediation of Cu-contaminated soils.MethodsThe Cu accumulation capacities of ten Elsholtzia species were investigated in Cu-polluted soil, and two species with the largest differences in Cu accumulation capacities were selected to verify the results and to analyze their rhizospheric response characteristics (e.g., changes in Cu availability and rhizospheric bacterial community) to Cu stress in soils spiked with 0, 250, and 500 mg kg(-1) Cu.ResultsThese 10 Elsholtzia species showed various Cu accumulation capacities (Cu bioconcentration factors: 0.55-1.86 in shoots, 1.13-5.27 in roots), and most of them showed the potential for Cu phytostabilization. Among them, E. eriocalyx and E. winitiana could both tolerate up to 500 mg kg(-1) Cu in soils but showed high- and low-Cu-accumulating capacities, respectively. Rhizospheric analysis indicated that specific rhizobacteria recruited by E. eriocalyx and E. winitiana were responsible for their differential Cu uptake. Several different plant growth-promoting rhizobacteria (e.g., Sphingomonas, Gemmatimonas, Devosia, and Flavisolibacter) might contribute to the plant vitality of E. eriocalyx under Cu stress. Moreover, the dominant Sphingomonas was responsible for the higher Cu accumulation in E. eriocalyx plants. However, the dominance of several rhizobacteria in the Planctomycetes phylum might participate in Cu immobilization, thus decreasing Cu uptake by E. winitian.ConclusionThis study identifies novel Elsholtzia species resources for the phytoremediation of Cu-contaminated soils and improves our understanding of the roles of rhizobacteria in regulating the Cu accumulation capacities of plants. |
| 学科主题 | Agriculture ; Plant Sciences |
| WOS记录号 | WOS:000968515800003 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/74817]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Li,Xiong,Zhao,Gaojuan,Huang,Yingqi,et al. Distinct rhizobacteria recruitment under copper stress contributes to the different copper-accumulating capacities of two Elsholtzia species (Lamiaceae)[J]. PLANT AND SOIL,2023. |
| APA | Li,Xiong,Zhao,Gaojuan,Huang,Yingqi,&Li,Boqun.(2023).Distinct rhizobacteria recruitment under copper stress contributes to the different copper-accumulating capacities of two Elsholtzia species (Lamiaceae).PLANT AND SOIL. |
| MLA | Li,Xiong,et al."Distinct rhizobacteria recruitment under copper stress contributes to the different copper-accumulating capacities of two Elsholtzia species (Lamiaceae)".PLANT AND SOIL (2023). |
入库方式： OAI收割
来源：昆明植物研究所
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。