Microbial Ecology in the Soudan Mine
Author Information
Author(s): Robert A. Edwards, Beltran Rodriguez-Brito, Linda Wegley, Matthew Haynes, Mya Breitbart, Dean M. Peterson, Martin O. Saar, Scott Alexander, E. Calvin Alexander Jr., Forest Rohwer
Primary Institution: San Diego State University
Hypothesis
How do microbial communities differ in metabolic potential in environments with distinct geochemical conditions?
Conclusion
Pyrosequencing can effectively identify significant differences in microbial communities and their metabolic potentials in different environments.
Supporting Evidence
- The Black sample contained 5.8 × 10^5 microbes per ml, while the Red sample had 1.2 × 10^6 microbes per ml.
- Distinct microbial communities were identified in the Black and Red samples, with different metabolic pathways.
- Pyrosequencing provided over 70 Mbp of sequence data from more than 700,000 sequences.
Takeaway
Scientists studied tiny living things in a mine to see how they behave differently in two nearby places with different water chemistry.
Methodology
Pyrosequencing was used to analyze microbial DNA from two water samples collected from different environments in the Soudan Mine.
Potential Biases
Potential biases from whole genome amplification may affect results.
Limitations
The short length of sequence fragments may complicate genome assembly.
Statistical Information
P-Value
p<0.05
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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