Copper and cadmium co-contamination affects soil bacterial taxonomic and functional attributes in paddy soils
文献类型：期刊论文
| 作者 | Guo, Yifan; Cheng, Shulan; Fang, Huajun; Yang, Yan; Li, Yuna; Shi, Fangying; Zhou, Yi |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2023 |
| 卷号 | 329 |
| 英文摘要 | Microorganisms inhabiting heavy metal-contaminated soils have evolved specific metabolic capabilities to sur-vive, which has the potential for effective bioremediation. However, the ecological consequence of copper (Cu) and cadmium (Cd) on bacterial taxonomic and functional attributes of rice field remains unclear. Here, we selected paddy soils along a polluted river in southern China to evaluate the role of Cu and Cd contaminant fractions in regulating bacterial co-occurrence patterns. We also assessed the effects of these heavy metal frac-tions on the relative abundance of functional genes using shotgun metagenomic analysis. Soil Cu and Cd con-centrations in paddy soils gradually decreased from upstream to downstream of the river, and had a greater impact on bacterial communities and metabolic potentials than soil general properties. Soil Cu and Cd contamination led to drastic changes in the cumulative relative abundance of ecological modules in bacterial co -occurrence networks. Bacteria associated with AD3, HSB_OF53-F07 (both belonging to Chloroflexi), Roku-bacteriales, and Nitrospira were identified as tolerant to Cu and Cd contamination. The Cu and Cd contaminant fractions were positively correlated with the genes involved in metal resistance, carbon (C) fixation, nitrification, and denitrification, but negatively correlated with the genes related to nitrogen (N) fixation. These results indicated that soil Cu and Cd pollution not only enriched metal resistant genes, but also affected genes related to microbial C and N cycling. This is critical for facilitating microbiome bioremediation of metal-contaminated paddy soils. |
| 源URL | [http://210.75.249.4/handle/363003/61653]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Guo, Yifan,Cheng, Shulan,Fang, Huajun,et al. Copper and cadmium co-contamination affects soil bacterial taxonomic and functional attributes in paddy soils[J]. ENVIRONMENTAL POLLUTION,2023,329. |
| APA | Guo, Yifan.,Cheng, Shulan.,Fang, Huajun.,Yang, Yan.,Li, Yuna.,...&Zhou, Yi.(2023).Copper and cadmium co-contamination affects soil bacterial taxonomic and functional attributes in paddy soils.ENVIRONMENTAL POLLUTION,329. |
| MLA | Guo, Yifan,et al."Copper and cadmium co-contamination affects soil bacterial taxonomic and functional attributes in paddy soils".ENVIRONMENTAL POLLUTION 329(2023). |
入库方式： OAI收割
来源：西北高原生物研究所
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