Interactive effects of ozone exposure and nitrogen addition on the rhizosphere bacterial community of poplar saplings
文献类型：期刊论文
| 作者 | Wang, Qi ; Li, Zhengzhen; Li, Xuewei; Ping, Qin; Yuan, Xiangyang; Agathokleous, Evgenios; Feng, Zhaozhong
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-02-01 |
| 卷号 | 754页码:- |
| ISSN号 | 0048-9697 |
| 关键词 | Ozone Nitrogen addition Rhizosphere soil Bacterial community Co-occurrence network |
| 英文摘要 | It is widely documented that elevated ground-level ozone (O-3) has negative effects on tree physiological characteristics, and in return, affects forest ecosystem function. However, the effect may be modified by soil nitrogen (N) availability. Numerous studies have focused on the aboveground part of trees under elevated O-3 alone or in combination with soil N; however, little is known about the response of soil bacterial communities. Here, we investigated the effects of O-3 (charcoal-filtered air, CF, versus ambient air +40 ppb of O-3, E-O3), N addition (0 kg ha(-1) yr(-1), N0, versus 200 kg ha(-1) yr(-1), N200), and their combination on rhizosphere soil bacterial communities of hybrid poplar, using an MiSeq targeted amplicon sequencing of the bacterial 16S rRNA gene. E-O3 significantly decreased bacterial abundance, and N200 significantly decreased the alpha-diversity. The negative impacts of N200 on alpha-diversity were alleviated by E-O3. Nitrogen and E-O3-N200 combination altered bacterial community composition, with a significant increase in the relative abundance of Proteobacteria and Bacteroidetes and a decrease in the abundance of Firmicutes. From an ecological network analysis, E-O3, alone and in combination with N200, complicated the co-occurrence network of bacterial communities by inducing a microbial survival strategy, shifting the hub species from RB41 to Bacillus and Blastococcus. Conversely, N200 led to simplification and decentralization of the co-occurrence network. These findings demonstrate that the rhizosphere bacterial communities exhibit divergent responses to E-O3 and N200, suggesting the need to consider the stability of the belowground ecosystem to optimize plantation management in response to environmental changes. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45499]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Key Lab Agrometeorol Jiangsu Prov, Nanjing 210044, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Shuangqing Rd 18, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qi,Li, Zhengzhen,Li, Xuewei,et al. Interactive effects of ozone exposure and nitrogen addition on the rhizosphere bacterial community of poplar saplings[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,754:-. |
| APA | Wang, Qi.,Li, Zhengzhen.,Li, Xuewei.,Ping, Qin.,Yuan, Xiangyang.,...&Feng, Zhaozhong.(2021).Interactive effects of ozone exposure and nitrogen addition on the rhizosphere bacterial community of poplar saplings.SCIENCE OF THE TOTAL ENVIRONMENT,754,-. |
| MLA | Wang, Qi,et al."Interactive effects of ozone exposure and nitrogen addition on the rhizosphere bacterial community of poplar saplings".SCIENCE OF THE TOTAL ENVIRONMENT 754(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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