Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area
Knowledge of the interactions among different microorganisms is important to understand how ecological function transformation is affected by elevated CO<sub>2</sub> levels in CO<sub>2</sub>-enhanced oil recovery (CO<sub>2</sub>-EOR) sites. Molecular ecological ne...
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MDPI AG
2019-05-01
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| Online Access: | https://www.mdpi.com/1424-2818/11/5/77 |
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| author | Jing Ma Zhanbin Luo Fu Chen Run Chen Qianlin Zhu Shaoliang Zhang |
| author_facet | Jing Ma Zhanbin Luo Fu Chen Run Chen Qianlin Zhu Shaoliang Zhang |
| author_sort | Jing Ma |
| collection | DOAJ |
| description | Knowledge of the interactions among different microorganisms is important to understand how ecological function transformation is affected by elevated CO<sub>2</sub> levels in CO<sub>2</sub>-enhanced oil recovery (CO<sub>2</sub>-EOR) sites. Molecular ecological networks were established to reveal the interactions among different microbes of the soil bacterial community with the high-throughput sequencing data of 16S rRNA genes. The results showed that these networks are a powerful tool to identify and explain the interactions and keystone species in the communities under elevated CO<sub>2</sub> pressure. The structures of networks under different CO<sub>2</sub> leakage concentrations were different as a result of the networks’ topology properties, such as node numbers, topological roles of individual nodes, and network hubs. These indicators imply that the interactions among different groups were obviously changed. Moreover, changes in the network structure were significantly correlated with soil pH value, which might suggest that the large CO<sub>2</sub> leakage affected the soil ecosystem functions by changing the network interactions. Additionally, the key microbial populations such as <i>Bacteroidetes</i> and <i>Proteobacteria</i> were distinguished based on network topology to reveal community structure and ecosystem functioning. The work developed in this study could help microbiologists to address some research questions that could not be approached previously, and, hence, might represent a new area of research for microbial ecology. |
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| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-04-11T14:05:10Z |
| publishDate | 2019-05-01 |
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| spelling | doaj.art-c459a011932f4431957ba10245185e5f2022-12-22T04:19:55ZengMDPI AGDiversity1424-28182019-05-011157710.3390/d11050077d11050077Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery AreaJing Ma0Zhanbin Luo1Fu Chen2Run Chen3Qianlin Zhu4Shaoliang Zhang5Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, ChinaSchool of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221008, ChinaJiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, ChinaLow Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, ChinaLow Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, ChinaSchool of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221008, ChinaKnowledge of the interactions among different microorganisms is important to understand how ecological function transformation is affected by elevated CO<sub>2</sub> levels in CO<sub>2</sub>-enhanced oil recovery (CO<sub>2</sub>-EOR) sites. Molecular ecological networks were established to reveal the interactions among different microbes of the soil bacterial community with the high-throughput sequencing data of 16S rRNA genes. The results showed that these networks are a powerful tool to identify and explain the interactions and keystone species in the communities under elevated CO<sub>2</sub> pressure. The structures of networks under different CO<sub>2</sub> leakage concentrations were different as a result of the networks’ topology properties, such as node numbers, topological roles of individual nodes, and network hubs. These indicators imply that the interactions among different groups were obviously changed. Moreover, changes in the network structure were significantly correlated with soil pH value, which might suggest that the large CO<sub>2</sub> leakage affected the soil ecosystem functions by changing the network interactions. Additionally, the key microbial populations such as <i>Bacteroidetes</i> and <i>Proteobacteria</i> were distinguished based on network topology to reveal community structure and ecosystem functioning. The work developed in this study could help microbiologists to address some research questions that could not be approached previously, and, hence, might represent a new area of research for microbial ecology.https://www.mdpi.com/1424-2818/11/5/77CO<sub>2</sub>-enhanced oil recoveryCO<sub>2</sub> leakagesoil microbial communitymicrobial interactionsnetwork analysis |
| spellingShingle | Jing Ma Zhanbin Luo Fu Chen Run Chen Qianlin Zhu Shaoliang Zhang Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area Diversity CO<sub>2</sub>-enhanced oil recovery CO<sub>2</sub> leakage soil microbial community microbial interactions network analysis |
| title | Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area |
| title_full | Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area |
| title_fullStr | Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area |
| title_full_unstemmed | Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area |
| title_short | Impacts of Elevated CO<sub>2</sub> Levels on the Soil Bacterial Community in a Natural CO<sub>2</sub>-Enhanced Oil Recovery Area |
| title_sort | impacts of elevated co sub 2 sub levels on the soil bacterial community in a natural co sub 2 sub enhanced oil recovery area |
| topic | CO<sub>2</sub>-enhanced oil recovery CO<sub>2</sub> leakage soil microbial community microbial interactions network analysis |
| url | https://www.mdpi.com/1424-2818/11/5/77 |
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