Gamma-Aminobutyric Acid Enhances Cadmium Phytoextraction by Coreopsis grandiflora by Remodeling the Rhizospheric Environment
文献类型：期刊论文
| 作者 | Huang,Yingqi; Li,Boqun; Chen,Huafang; Li,Jingxian; Xu,Jianchu ; Li,Xiong
|
| 刊名 | PLANTS-BASEL
 |
| 出版日期 | 2023 |
| 卷号 | 12期号:7页码:1484 |
| 关键词 | gamma-aminobutyric acid heavy metal phytoextraction soil amendment plant growth-promoting rhizobacteria CHROMIUM STRESS AMINO-ACIDS ACCUMULATION L. PHYTOREMEDIATION AVAILABILITY IMPROVEMENT SPECIATION GROWTH PLANTS |
| ISSN号 | 2223-7747 |
| DOI | 10.3390/plants12071484 |
| 英文摘要 | Gamma-aminobutyric acid (GABA) significantly affects plant responses to heavy metals in hydroponics or culture media, but its corresponding effects in plant-soil systems remain unknown. In this study, different GABA dosages (0-8 g kg(-1)) were added to the rhizosphere of Coreopsis grandiflora grown in Cd-contaminated soils. Cd accumulation in the shoots of C. grandiflora was enhanced by 38.9-159.5% by GABA in a dose-dependent approach because of accelerated Cd absorption and transport. The increase in exchangeable Cd transformed from Fe-Mn oxide and carbonate-bound Cd, which may be mainly driven by decreased soil pH rather than GABA itself, could be a determining factor responsible for this phenomenon. The N, P, and K availability was affected by multiple factors under GABA treatment, which may regulate Cd accommodation and accumulation in C. grandiflora. The rhizospheric environment dynamics remodeled the bacterial community composition, resulting in a decline in overall bacterial diversity and richness. However, several important plant growth-promoting rhizobacteria, especially Pseudomonas and Sphingomonas, were recruited under GABA treatment to assist Cd phytoextraction in C. grandiflora. This study reveals that GABA as a soil amendment remodels the rhizospheric environment (e.g., soil pH and rhizobacteria) to enhance Cd phytoextraction in plant-soil systems. |
| 学科主题 | Plant Sciences |
| WOS记录号 | WOS:000970050400001 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/75049]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Huang,Yingqi,Li,Boqun,Chen,Huafang,et al. Gamma-Aminobutyric Acid Enhances Cadmium Phytoextraction by Coreopsis grandiflora by Remodeling the Rhizospheric Environment[J]. PLANTS-BASEL,2023,12(7):1484. |
| APA | Huang,Yingqi,Li,Boqun,Chen,Huafang,Li,Jingxian,Xu,Jianchu,&Li,Xiong.(2023).Gamma-Aminobutyric Acid Enhances Cadmium Phytoextraction by Coreopsis grandiflora by Remodeling the Rhizospheric Environment.PLANTS-BASEL,12(7),1484. |
| MLA | Huang,Yingqi,et al."Gamma-Aminobutyric Acid Enhances Cadmium Phytoextraction by Coreopsis grandiflora by Remodeling the Rhizospheric Environment".PLANTS-BASEL 12.7(2023):1484. |
入库方式： OAI收割
来源：昆明植物研究所
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