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Title: Network succession reveals the importance of competition in response to emulsified vegetable oil amendment for uranium bioremediation: Competition in bioremediation system

Journal Article · · Environmental Microbiology
 [1];  [2];  [2];  [2];  [3];  [2];  [4];  [5]
  1. Chinese Academy of Sciences (CAS), Beijing (China). CAS Key Lab. of Environmental Biotechnology; Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Microbiology and Plant Biology
  2. Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Microbiology and Plant Biology
  3. Tsinghua Univ., Beijing (China). State Key Joint Lab. of Environment Simulation and Pollution Control
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). BioSciences Division
  5. Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Microbiology and Plant Biology; Tsinghua Univ., Beijing (China). State Key Joint Lab. of Environment Simulation and Pollution Control; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth Sciences Division

When trying to discern network interactions among different species/populations in microbial communities interests have been evoked in recent years, but little information is available about temporal dynamics of microbial network interactions in response to environmental perturbations. We modified the random matrix theory-based network approach to discern network succession in groundwater microbial communities in response to emulsified vegetable oil (EVO) amendment for uranium bioremediation. Groundwater microbial communities from one control and seven monitor wells were analysed with a functional gene array (GeoChip 3.0), and functional molecular ecological networks (fMENs) at different time points were reconstructed. Our results showed that the network interactions were dramatically altered by EVO amendment. Dynamic and resilient succession was evident: fairly simple at the initial stage (Day 0), increasingly complex at the middle period (Days 4, 17, 31), most complex at Day 80, and then decreasingly complex at a later stage (140–269 days). Unlike previous studies in other habitats, negative interactions predominated in a time-series fMEN, suggesting strong competition among different microbial species in the groundwater systems after EVO injection. In particular, several keystone sulfate-reducing bacteria showed strong negative interactions with their network neighbours. These results provide mechanistic understanding of the decreased phylogenetic diversity during environmental perturbations.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00OR22725; FG02-07ER64398; AC02-05CH11231; SC0004613
OSTI ID:
1325419
Journal Information:
Environmental Microbiology, Vol. 18, Issue 1; ISSN 1462-2912
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 279 works
Citation information provided by
Web of Science

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Cited By (26)

Relationships between microbial communities and groundwater chemistry in two pristine confined groundwater aquifers in central China journal April 2019
Molecular ecological network analysis of the response of soil microbial communities to depth gradients in farmland soils journal January 2020
Contrasting Ecological Processes and Functional Compositions Between Intestinal Bacterial Community in Healthy and Diseased Shrimp journal August 2016
Integrated network analysis reveals the importance of microbial interactions for maize growth journal March 2018
Different response of bacterial community to the changes of nutrients and pollutants in sediments from an urban river network journal January 2020
Habitat environments impacted the gut microbiome of long-distance migratory swan geese but central species conserved journal September 2018
Biogeography of Soil Bacterial Networks along a Gradient of Cropping Intensity journal March 2019
A general framework for quantitatively assessing ecological stochasticity journal August 2019
Fungal community demonstrates stronger dispersal limitation and less network connectivity than bacterial community in sediments along a large river journal August 2019
The interconnected rhizosphere: High network complexity dominates rhizosphere assemblages journal June 2016
Higher precipitation strengthens the microbial interactions in semi-arid grassland soils journal January 2018
The spatial scale dependence of diazotrophic and bacterial community assembly in paddy soil journal May 2019
Responses of phyllosphere microbiota and plant health to application of two different biocontrol agents journal March 2019
Variations in phyllosphere microbial community along with the development of angular leaf-spot of cucumber journal May 2019
Distinct Network Interactions in Particle-Associated and Free-Living Bacterial Communities during a Microcystis aeruginosa Bloom in a Plateau Lake journal June 2017
Chemotherapy Alters the Phylogenetic Molecular Ecological Networks of Intestinal Microbial Communities journal May 2019
Impacts of Elevated CO2 Levels on the Soil Bacterial Community in a Natural CO2-Enhanced Oil Recovery Area journal May 2019
Cracks Reinforce the Interactions among Soil Bacterial Communities in the Coal Mining Area of Loess Plateau, China journal December 2019
Flooding Irrigation Weakens the Molecular Ecological Network Complexity of Soil Microbes during the Process of Dryland-to-Paddy Conversion journal January 2020
Molecular Ecological Network Complexity Drives Stand Resilience of Soil Bacteria to Mining Disturbances among Typical Damaged Ecosystems in China journal March 2020
Petroleum Hydrocarbon Contamination in Terrestrial Ecosystems—Fate and Microbial Responses journal September 2019
The Variation of the Soil Bacterial and Fungal Community Is Linked to Land Use Types in Northeast China journal June 2019
Distribution and Abundance of Antibiotic Resistance Genes in Sand Settling Reservoirs and Drinking Water Treatment Plants across the Yellow River, China journal February 2018
Migration, clogging, and carbon source release of nano emulsified vegetable oil in porous media, evaluated by column experiments text January 2018
Migration, clogging, and carbon source release of nano emulsified vegetable oil in porous media, evaluated by column experiments text January 2018
Molecular ecological network complexity drives stand resilience of soil bacteria to mining disturbances among typical damaged ecosystems in China journal February 2020

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