Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 539660
Title Fluctuations in populations of subsurface methane oxidizers in coordination with changes in electron acceptor availability
Author(s) Magnabosco, C.; Timmers, P.H.A.; Lau, M.C.Y.; Borgonie, G.; Linage-Alvarez, B.; Kuloyo, O.; Alleva, R.; Kieft, T.L.; Slater, G.F.; Heerden, E. van; Sherwood Lollar, B.; Onstott, T.C.
Source FEMS Microbiology Ecology 94 (2018)7. - ISSN 0168-6496
DOI https://doi.org/10.1093/femsec/fiy089
Department(s) Microbiological Laboratory
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Archaea - Metagenomics - Methane oxidation - Subsurface
Abstract

The concentrations of electron donors and acceptors in the terrestrial subsurface biosphere fluctuate due to migration and mixing of subsurface fluids, but the mechanisms and rates at which microbial communities respond to these changes are largely unknown. Subsurface microbial communities exhibit long cellular turnover times and are often considered relatively static-generating just enough ATP for cellular maintenance. Here, we investigated how subsurface populations of CH4 oxidizers respond to changes in electron acceptor availability by monitoring the biological and geochemical composition in a 1339 m-below-land-surface (mbls) fluid-filled fracture over the course of both longer (2.5 year) and shorter (2-week) time scales. Using a combination of metagenomic, metatranscriptomic, and metaproteomic analyses, we observe that the CH4 oxidizers within the subsurface microbial community change in coordination with electron acceptor availability over time. We then validate these findings through a series of 13C-CH4 laboratory incubation experiments, highlighting a connection between composition of subsurface CH4 oxidizing communities and electron acceptor availability.

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