Long-Term Sustainability of a High-Energy, Low-Diversity Crustal Biome

  title={Long-Term Sustainability of a High-Energy, Low-Diversity Crustal Biome},
  author={Li-Hung Lin and Pei-ling Wang and Douglas Iii Rumble and Johanna Lippmann-Pipke and Erik Boice and Lisa M. Pratt and Barbara Sherwood Lollar and Eoin L. Brodie and Terry C. Hazen and Gary L. Andersen and Todd Z. DeSantis and Duane P Moser and Dave Kershaw and Tullis C. Onstott},
  pages={479 - 482}
Geochemical, microbiological, and molecular analyses of alkaline saline groundwater at 2.8 kilometers depth in Archaean metabasalt revealed a microbial biome dominated by a single phylotype affiliated with thermophilic sulfate reducers belonging to Firmicutes. These sulfate reducers were sustained by geologically produced sulfate and hydrogen at concentrations sufficient to maintain activities for millions of years with no apparent reliance on photosynthetically derived substrates. 

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