| Title |
Potential for Methanosarcina to Contribute to Uranium Reduction during Acetate-Promoted Groundwater Bioremediation
|
|---|---|
| Published in |
Microbial Ecology, March 2018
|
| DOI | 10.1007/s00248-018-1165-5 |
| Pubmed ID | |
| Authors |
Dawn E Holmes, Roberto Orelana, Ludovic Giloteaux, Li-Ying Wang, Pravin Shrestha, Kenneth Williams, Derek R Lovley, Amelia-Elena Rotaru |
| Abstract |
Previous studies of acetate-promoted bioremediation of uranium-contaminated aquifers focused on Geobacter because no other microorganisms that can couple the oxidation of acetate with U(VI) reduction had been detected in situ. Monitoring the levels of methyl CoM reductase subunit A (mcrA) transcripts during an acetate-injection field experiment demonstrated that acetoclastic methanogens from the genus Methanosarcina were enriched after 40 days of acetate amendment. The increased abundance of Methanosarcina corresponded with an accumulation of methane in the groundwater. In order to determine whether Methanosarcina species could be participating in U(VI) reduction in the subsurface, cell suspensions of Methanosarcina barkeri were incubated in the presence of U(VI) with acetate provided as the electron donor. U(VI) was reduced by metabolically active M. barkeri cells; however, no U(VI) reduction was observed in inactive controls. These results demonstrate that Methanosarcina species could play an important role in the long-term bioremediation of uranium-contaminated aquifers after depletion of Fe(III) oxides limits the growth of Geobacter species. The results also suggest that Methanosarcina have the potential to influence uranium geochemistry in a diversity of anaerobic sedimentary environments. |
X Demographics
The data shown below were collected from the profiles of 20 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 6 | 30% |
| Australia | 2 | 10% |
| India | 1 | 5% |
| Belgium | 1 | 5% |
| Guinea | 1 | 5% |
| Estonia | 1 | 5% |
| Nepal | 1 | 5% |
| Czechia | 1 | 5% |
| Netherlands | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 4 | 20% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 12 | 60% |
| Members of the public | 8 | 40% |
Mendeley readers
The data shown below were compiled from readership statistics for 41 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 41 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 7 | 17% |
| Student > Bachelor | 6 | 15% |
| Researcher | 6 | 15% |
| Student > Doctoral Student | 3 | 7% |
| Student > Master | 3 | 7% |
| Other | 6 | 15% |
| Unknown | 10 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 7 | 17% |
| Biochemistry, Genetics and Molecular Biology | 7 | 17% |
| Agricultural and Biological Sciences | 5 | 12% |
| Chemical Engineering | 2 | 5% |
| Immunology and Microbiology | 2 | 5% |
| Other | 5 | 12% |
| Unknown | 13 | 32% |
Attention Score in Context
This research output has an Altmetric Attention Score of 10. 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 07 December 2018.
All research outputs
#3,542,313
of 25,137,221 outputs
Outputs from Microbial Ecology
#273
of 2,187 outputs
Outputs of similar age
#68,514
of 337,444 outputs
Outputs of similar age from Microbial Ecology
#14
of 39 outputs
Altmetric has tracked 25,137,221 research outputs across all sources so far. Compared to these this one has done well and is in the 85th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,187 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.3. This one has done well, scoring higher than 87% 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 337,444 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 79% of its contemporaries.
We're also able to compare this research output to 39 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 66% of its contemporaries.