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Identification of Mn(II)-Oxidizing Bacteria from a Low-pH Contaminated Former Uranium Mine

Overview of attention for article published in Applied and Environmental Microbiology, June 2014
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Title
Identification of Mn(II)-Oxidizing Bacteria from a Low-pH Contaminated Former Uranium Mine
Published in
Applied and Environmental Microbiology, June 2014
DOI 10.1128/aem.01296-14
Pubmed ID
Authors

Denise M. Akob, Tsing Bohu, Andrea Beyer, Franziska Schäffner, Matthias Händel, Carol A. Johnson, Dirk Merten, Georg Büchel, Kai Uwe Totsche, Kirsten Küsel

Abstract

Biological Mn oxidation is responsible for producing highly reactive and abundant Mn oxide phases in the environment that can mitigate metal contamination. However, little is known about Mn oxidation at low pH environments, where metal contamination often is a problem due to mining activities. We isolated two Mn(II)-oxidizing bacteria (MOB) at pH 5.5 (Duganella isolate AB_14 and Albidiferax isolate TB-2) and nine strains at pH 7 from a former uranium mining site. Isolate TB-2 may contribute to Mn oxidation in the acidic Mn-rich subsoil as a closely related clone represented 16% of the total community. All isolates oxidized Mn over a small pH range and low pH isolates only oxidized Mn below pH 6. Two strains with different pH optima differed in their Fe requirements for Mn oxidation, suggesting that Mn oxidation by the neutral pH strain was linked to Fe oxidation. Isolates tolerated Ni, Cu, and Cd and produced Mn oxides with similarities to todorokite and birnessite, with the latter being present in subsurface layers where metal enrichment was associated with Mn oxides. This demonstrates that MOB can be involved in the formation of biogenic Mn oxides in both moderately acidic and neutral pH environments.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 100 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 2%
Germany 2 2%
Unknown 96 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 19 19%
Student > Master 18 18%
Researcher 17 17%
Student > Doctoral Student 7 7%
Student > Bachelor 5 5%
Other 10 10%
Unknown 24 24%
Readers by discipline Count As %
Environmental Science 20 20%
Agricultural and Biological Sciences 19 19%
Earth and Planetary Sciences 11 11%
Biochemistry, Genetics and Molecular Biology 5 5%
Engineering 5 5%
Other 10 10%
Unknown 30 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 2014.
All research outputs
#15,517,992
of 25,374,647 outputs
Outputs from Applied and Environmental Microbiology
#15,952
of 19,160 outputs
Outputs of similar age
#126,853
of 243,418 outputs
Outputs of similar age from Applied and Environmental Microbiology
#86
of 151 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 37th percentile – i.e., 37% of other outputs scored the same or lower than it.
So far Altmetric has tracked 19,160 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 7.7. This one is in the 16th percentile – i.e., 16% of its peers scored the same or lower than it.
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 243,418 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 47th percentile – i.e., 47% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 151 others from the same source and published within six weeks on either side of this one. This one is in the 42nd percentile – i.e., 42% of its contemporaries scored the same or lower than it.