Year: 2015
Type: article
Abstract: To understand patterns of geochemical cycling in pristine versus contaminated groundwater ecosystems, pristine shallow groundwater (FW301) and contaminated groundwater (FW106) samples from the Oak Ridge Integrated Field Research Center (OR-IFRC) were sequenced and compared to each other to determine phylogenetic and metabolic difference between the communities. Proteobacteria (e.g., Burkholderia, Pseudomonas) are the most abundant lineages in the pristine community, though a significant proportion ( >55%) of the community is composed of poorly characterized low abundance (individually <1%) lineages. The phylogenetic diversity of the pristine community contributed to a broader diversity of metabolic networks than the contaminated community. In addition, the pristine community encodes redundant and mostly complete geochemical cycles distributed over multiple lineages and appears capable of a wide range of metabolic activities. In contrast, many geochemical cycles in the contaminated community appear truncated or minimized due to decreased biodiversity and dominance by Rhodanobacter populations capable of surviving the combination of stresses at the site. These results indicate that the pristine site contains more robust and encodes more functional redundancy than the stressed community, which contributes to more efficient nutrient cycling and adaptability than the stressed community.
Source: Frontiers in Microbiology
Institutions: University of Oklahoma, Arizona State University, Chinese Academy of Sciences, Research Center for Eco-Environmental Sciences, Los Alamos National Laboratory, Joint Genome Institute, Montana State University, Michigan State University, Oak Ridge National Laboratory, University of Tennessee at Knoxville, Lawrence Berkeley National Laboratory, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University
Language: English
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,801
Awards: G1286236842, G1337544421, G1414775356, G1581387393, G1816284028, G222768804, G223002938, G3083819904, G3432487278, G365575497, METAGENOMICS-ENABLED UNDERSTANDING OF THE FUNCTIONS AND ACTIVITIES OF MICROBIAL COMMUNITIES AT ERSP FIELD RESEARCH CENTER AT OAK RIDGE, TN, G419881185, G42916606, METAGENOMICS ENABLED UNDERSTANDING OF THE FUNCTIONS AND ACTICITIES OF MICROBIAL COMMUNITIES AT ERSP FIELD RESEARCH CENTER AT OAK RIDGE, TN, G4501827968, G498139845, G6652958823, METAGENOMICS ENABLED UNDERSTANDING OF THE FUNCTIONS AND ACTICITIES OF MICROBIAL COMMUNITIES AT ERSP FIELD RESEARCH CENTER AT OAK RIDGE, TN, G7205239661, G7787287669, G805243471, G834277795, G969889393
OpenAlex ID: W2147654303