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Shifting microbial communities sustain multiyear iron reduction and methanogenesis in ferruginous sediment incubations

Overview of attention for article published in Geobiology, April 2017
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • Among the highest-scoring outputs from this source (#14 of 464)
  • High Attention Score compared to outputs of the same age (96th percentile)
  • High Attention Score compared to outputs of the same age and source (90th percentile)

Mentioned by

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8 news outlets
blogs
2 blogs
twitter
5 X users
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1 Facebook page

Citations

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25 Dimensions

Readers on

mendeley
64 Mendeley
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Title
Shifting microbial communities sustain multiyear iron reduction and methanogenesis in ferruginous sediment incubations
Published in
Geobiology, April 2017
DOI 10.1111/gbi.12239
Pubmed ID
Authors

M. S. Bray, J. Wu, B. C. Reed, C. B. Kretz, K. M. Belli, R. L. Simister, C. Henny, F. J. Stewart, T. J. DiChristina, J. A. Brandes, D. A. Fowle, S. A. Crowe, J. B. Glass

Abstract

Reactive Fe(III) minerals can influence methane (CH4 ) emissions by inhibiting microbial methanogenesis or by stimulating anaerobic CH4 oxidation. The balance between Fe(III) reduction, methanogenesis, and CH4 oxidation in ferruginous Archean and Paleoproterozoic oceans would have controlled CH4 fluxes to the atmosphere, thereby regulating the capacity for CH4 to warm the early Earth under the Faint Young Sun. We studied CH4 and Fe cycling in anoxic incubations of ferruginous sediment from the ancient ocean analogue Lake Matano, Indonesia, over three successive transfers (500 days in total). Iron reduction, methanogenesis, CH4 oxidation, and microbial taxonomy were monitored in treatments amended with ferrihydrite or goethite. After three dilutions, Fe(III) reduction persisted only in bottles with ferrihydrite. Enhanced CH4 production was observed in the presence of goethite, highlighting the potential for reactive Fe(III) oxides to inhibit methanogenesis. Supplementing the media with hydrogen, nickel and selenium did not stimulate methanogenesis. There was limited evidence for Fe(III)-dependent CH4 oxidation, although some incubations displayed CH4 -stimulated Fe(III) reduction. 16S rRNA profiles continuously changed over the course of enrichment, with ultimate dominance of unclassified members of the order Desulfuromonadales in all treatments. Microbial diversity decreased markedly over the course of incubation, with subtle differences between ferrihydrite and goethite amendments. These results suggest that Fe(III) oxide mineralogy and availability of electron donors could have led to spatial separation of Fe(III)-reducing and methanogenic microbial communities in ferruginous marine sediments, potentially explaining the persistence of CH4 as a greenhouse gas throughout the first half of Earth history.

X Demographics

X Demographics

The data shown below were collected from the profiles of 5 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 64 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 2%
Switzerland 1 2%
Unknown 62 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 17 27%
Researcher 10 16%
Student > Master 8 13%
Other 7 11%
Student > Doctoral Student 3 5%
Other 7 11%
Unknown 12 19%
Readers by discipline Count As %
Environmental Science 13 20%
Earth and Planetary Sciences 12 19%
Agricultural and Biological Sciences 9 14%
Biochemistry, Genetics and Molecular Biology 4 6%
Veterinary Science and Veterinary Medicine 1 2%
Other 6 9%
Unknown 19 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 73. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 June 2020.
All research outputs
#556,567
of 24,453,338 outputs
Outputs from Geobiology
#14
of 464 outputs
Outputs of similar age
#11,928
of 314,429 outputs
Outputs of similar age from Geobiology
#1
of 10 outputs
Altmetric has tracked 24,453,338 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 97th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 464 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.4. This one has done particularly well, scoring higher than 96% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 314,429 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 96% of its contemporaries.
We're also able to compare this research output to 10 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them