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dc.contributor.authorColman, Daniel R.
dc.contributor.authorPoudel, Saroj
dc.contributor.authorStamps, Blake W.
dc.contributor.authorBoyd, Eric S.
dc.contributor.authorSpear, John R.
dc.date.accessioned2017-10-16T14:25:14Z
dc.date.available2017-10-16T14:25:14Z
dc.date.issued2017-07
dc.identifier.citationColman, Daniel R. , Saroj Poudel, Blake W. Stamps, Eric S. Boyd, and John R. Spear. "The deep, hot biosphere: Twenty-five years of retrospection." Proceedings of the National Academy of Sciences 114, no. 27 (July 2017): 6895-6903. DOI:https://dx.doi.org/10.1073/pnas.1701266114.en_US
dc.identifier.issn1091-6490
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/13821
dc.description.abstractTwenty-five years ago this month, Thomas Gold published a seminal manuscript suggesting the presence of a \deep, hot biosphere\" in the Earth\'s crust. Since this publication, a considerable amount of attention has been given to the study of deep biospheres, their role in geochemical cycles, and their potential to inform on the origin of life and its potential outside of Earth. Overwhelming evidence now supports the presence of a deep biosphere ubiquitously distributed on Earth in both terrestrial and marine settings. Furthermore, it has become apparent that much of this life is dependent on lithogenically sourced high-energy compounds to sustain productivity. A vast diversity of uncultivated microorganisms has been detected in subsurface environments, and we show that H2, CH4, and CO feature prominently in many of their predicted metabolisms. Despite 25 years of intense study, key questions remain on life in the deep subsurface, including whether it is endemic and the extent of its involvement in the anaerobic formation and degradation of hydrocarbons. Emergent data from cultivation and next-generation sequencing approaches continue to provide promising new hints to answer these questions. As Gold suggested, and as has become increasingly evident, to better understand the subsurface is critical to further understanding the Earth, life, the evolution of life, and the potential for life elsewhere. To this end, we suggest the need to develop a robust network of interdisciplinary scientists and accessible field sites for long-term monitoring of the Earth\'s subsurface in the form of a deep subsurface microbiome initiative."en_US
dc.titleThe deep, hot biosphere: Twenty-five years of retrospectionen_US
mus.citation.extentfirstpage6895en_US
mus.citation.extentlastpage6903en_US
mus.citation.issue27en_US
mus.citation.journaltitleProceedings of the National Academy of Sciencesen_US
mus.citation.volume114en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1073/pnas.1701266114en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentMicrobiology & Immunology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage3en_US


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