Bacterial community rather than metals shaping metal resistance genes in water, sediment and biofilm in lakes from arid northwestern China
文献类型：期刊论文
| 作者 | Song, Wenjuan2,3; Qi, Ran4; Zhao, Li2; Xue, Nana2,3; Wang, Liyi2,3; Yang, Yuyi1,3,5 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 254页码:12 |
| 关键词 | Bosten lake Ebi lake Sediment quality guidelines Mercury resistance genes Bacterial community |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2019.113041 |
| 英文摘要 | Lakes in arid northwestern China are valuable freshwater resources that drive socioeconomic development. Environmental pollution can significantly influence the composition of microbial communities and the distribution of functional genes in lakes. This study investigated heavy metal pollution to identify possible correlations with metal resistance genes (MRGs) and bacterial community composition in water, sediment and biofilm samples from Bosten Lake and Ebi Lake in northwestern China. High levels of zinc were detected in all samples. However, the metals detected in the sediment samples of both lakes were determined to be at low risk levels according to an ecological index. The mercury resistance gene subtype merP had the greatest average abundance (4.61 x 10(-3) copies per 16S rRNA) among all the samples, followed by merA and merC. The high abundance of merA in the pelagic zone rather than in benthic sediment suggests that the pelagic microbial community was important in mercury reduction. Proteobacteria were the main phylum found in the microbial communities in all samples. However, microbial communities in most of the water, sediment and biofilm samples had different compositions, indicating that the habitat niche plays an important role in shaping the bacterial communities in lakes. The microbial community, rather than the heavy metals, was the main driver of MRG distribution. The abundances of some bacterial genera involved in the decomposition of organic matter and the terrestrial nitrogen cycle were negatively correlated with heavy metals. This result suggests that metal pollution can adversely affect the biogeochemical processes that occur in lakes. (C) 2019 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[41673127] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017478] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2015282] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000488887500051 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/8560]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Yang, Yuyi |
| 作者单位 | 1.Univ Dundee, Sch Life Sci, Dundee DD1 5EH, Scotland 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100099, Peoples R China 4.Chinese Peoples Armed Police Golden Headquarters, Beijing 100055, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wenjuan,Qi, Ran,Zhao, Li,et al. Bacterial community rather than metals shaping metal resistance genes in water, sediment and biofilm in lakes from arid northwestern China[J]. ENVIRONMENTAL POLLUTION,2019,254:12. |
| APA | Song, Wenjuan,Qi, Ran,Zhao, Li,Xue, Nana,Wang, Liyi,&Yang, Yuyi.(2019).Bacterial community rather than metals shaping metal resistance genes in water, sediment and biofilm in lakes from arid northwestern China.ENVIRONMENTAL POLLUTION,254,12. |
| MLA | Song, Wenjuan,et al."Bacterial community rather than metals shaping metal resistance genes in water, sediment and biofilm in lakes from arid northwestern China".ENVIRONMENTAL POLLUTION 254(2019):12. |
入库方式： OAI收割
来源：武汉植物园
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