Next Article in Journal
Do Local Environmental Factors and Lunar Cycle Influence Timing and Synchrony of Oviposition of a Turtle with Strict Nocturnal Nesting?
Previous Article in Journal
Evaluation of Gonadal Tissue to Validate Size at Reproductive Maturity in Kemp’s Ridley Sea Turtles Found Stranded in Texas, USA
Previous Article in Special Issue
The Polyextreme Ecosystem, Salar de Huasco at the Chilean Altiplano of the Atacama Desert Houses Diverse Streptomyces spp. with Promising Pharmaceutical Potentials
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

Impacts of Elevated CO2 Levels on the Soil Bacterial Community in a Natural CO2-Enhanced Oil Recovery Area

1,2,†, 3,†, 1,2,*, 2, 2 and 3
1
Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
2
Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China
3
School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221008, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Diversity 2019, 11(5), 77; https://doi.org/10.3390/d11050077
Received: 29 March 2019 / Revised: 8 May 2019 / Accepted: 9 May 2019 / Published: 11 May 2019
  |  
PDF [5531 KB, uploaded 11 May 2019]
  |  

Abstract

Knowledge of the interactions among different microorganisms is important to understand how ecological function transformation is affected by elevated CO2 levels in CO2-enhanced oil recovery (CO2-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 CO2 pressure. The structures of networks under different CO2 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 CO2 leakage affected the soil ecosystem functions by changing the network interactions. Additionally, the key microbial populations such as Bacteroidetes and Proteobacteria 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. View Full-Text
Keywords: CO2-enhanced oil recovery; CO2 leakage; soil microbial community; microbial interactions; network analysis CO2-enhanced oil recovery; CO2 leakage; soil microbial community; microbial interactions; network analysis
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Ma, J.; Luo, Z.; Chen, F.; Chen, R.; Zhu, Q.; Zhang, S. Impacts of Elevated CO2 Levels on the Soil Bacterial Community in a Natural CO2-Enhanced Oil Recovery Area. Diversity 2019, 11, 77.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Diversity EISSN 1424-2818 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top