Author
Listed:
- Cindy J. Castelle
(University of California)
- Laura A. Hug
(University of California)
- Kelly C. Wrighton
(University of California)
- Brian C. Thomas
(University of California)
- Kenneth H. Williams
(Lawrence Berkeley National Laboratory)
- Dongying Wu
(UC Davis Genome Center, University of California, Davis)
- Susannah G. Tringe
(Department of Energy Joint Genome Institute
Lawrence Berkeley National Laboratory)
- Steven W. Singer
(Lawrence Berkeley National Laboratory)
- Jonathan A. Eisen
(UC Davis Genome Center, University of California, Davis
University of California, Davis
University of California, Davis)
- Jillian F. Banfield
(University of California
Lawrence Berkeley National Laboratory)
Abstract
Microorganisms in the subsurface represent a substantial but poorly understood component of the Earth’s biosphere. Subsurface environments are complex and difficult to characterize; thus, their microbiota have remained as a ‘dark matter’ of the carbon and other biogeochemical cycles. Here we deeply sequence two sediment-hosted microbial communities from an aquifer adjacent to the Colorado River, CO, USA. No single organism represents more than ~1% of either community. Remarkably, many bacteria and archaea in these communities are novel at the phylum level or belong to phyla lacking a sequenced representative. The dominant organism in deeper sediment, RBG-1, is a member of a new phylum. On the basis of its reconstructed complete genome, RBG-1 is metabolically versatile. Its wide respiration-based repertoire may enable it to respond to the fluctuating redox environment close to the water table. We document extraordinary microbial novelty and the importance of previously unknown lineages in sediment biogeochemical transformations.
Suggested Citation
Cindy J. Castelle & Laura A. Hug & Kelly C. Wrighton & Brian C. Thomas & Kenneth H. Williams & Dongying Wu & Susannah G. Tringe & Steven W. Singer & Jonathan A. Eisen & Jillian F. Banfield, 2013.
"Extraordinary phylogenetic diversity and metabolic versatility in aquifer sediment,"
Nature Communications, Nature, vol. 4(1), pages 1-10, October.
Handle:
RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3120
DOI: 10.1038/ncomms3120
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