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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Stable Carbon Isotope Fractionation during Bacterial Acetylene Fermentation: Potential for Life Detection in Hydrocarbon-Rich Volatiles of Icy Planet(oid)s
|
|---|---|
| Published in |
Astrobiology, November 2015
|
| DOI | 10.1089/ast.2015.1355 |
| Pubmed ID | |
| Authors |
Laurence G. Miller, Shaun M. Baesman, Ronald S. Oremland |
| Abstract |
We report the first study of stable carbon isotope fractionation during microbial fermentation of acetylene (C2H2) in sediments, sediment enrichments, and bacterial cultures. Kinetic isotope effects (KIEs) averaged 3.7 ± 0.5‰ for slurries prepared with sediment collected at an intertidal mudflat in San Francisco Bay and 2.7 ± 0.2‰ for a pure culture of Pelobacter sp. isolated from these sediments. A similar KIE of 1.8 ± 0.7‰ was obtained for methanogenic enrichments derived from sediment collected at freshwater Searsville Lake, California. However, C2H2 uptake by a highly enriched mixed culture (strain SV7) obtained from Searsville Lake sediments resulted in a larger KIE of 9.0 ± 0.7‰. These are modest KIEs when compared with fractionation observed during oxidation of C1 compounds such as methane and methyl halides but are comparable to results obtained with other C2 compounds. These observations may be useful in distinguishing biologically active processes operating at distant locales in the Solar System where C2H2 is present. These locales include the surface of Saturn's largest moon Titan and the vaporous water- and hydrocarbon-rich jets emanating from Enceladus. Key Words: Acetylene-Fermentation-Isotope fractionation-Enceladus-Life detection. Astrobiology 15, xxx-xxx. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 1 | 25% |
| Unknown | 3 | 75% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 75% |
| Scientists | 1 | 25% |
Mendeley readers
The data shown below were compiled from readership statistics for 18 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 6% |
| Ukraine | 1 | 6% |
| Canada | 1 | 6% |
| Slovenia | 1 | 6% |
| Unknown | 14 | 78% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 4 | 22% |
| Researcher | 4 | 22% |
| Professor | 3 | 17% |
| Student > Master | 3 | 17% |
| Lecturer > Senior Lecturer | 1 | 6% |
| Other | 0 | 0% |
| Unknown | 3 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 4 | 22% |
| Chemistry | 3 | 17% |
| Agricultural and Biological Sciences | 2 | 11% |
| Environmental Science | 2 | 11% |
| Physics and Astronomy | 2 | 11% |
| Other | 1 | 6% |
| Unknown | 4 | 22% |
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 10 September 2016.
All research outputs
#15,169,949
of 25,374,917 outputs
Outputs from Astrobiology
#1,036
of 1,394 outputs
Outputs of similar age
#145,243
of 296,932 outputs
Outputs of similar age from Astrobiology
#12
of 25 outputs
Altmetric has tracked 25,374,917 research outputs across all sources so far. This one is in the 38th percentile – i.e., 38% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,394 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 39.7. This one is in the 24th percentile – i.e., 24% 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 296,932 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 49th percentile – i.e., 49% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 25 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 52% of its contemporaries.