Microbial Communities of Deep Marine Subsurface Sediments: Molecular and Cultivation Surveys

Author: Teske, Andreas¹

Source: Geomicrobiology Journal, Volume 23, Number 6, September 2006 , pp. 357-368(12)

Publisher: Taylor and Francis Ltd

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Abstract:

Recent molecular analyses show that microbial communities of deep marine sediments harbor members of distinct, uncultured bacterial and archaeal lineages, in addition to Gram-positive bacteria and Proteobacteria that are detected by cultivation surveys. Several of these subsurface lineages show cosmopolitan occurrence patterns; they can be found in cold marine sediments and also in hydrothermal habitats, suggesting a continuous deep subsurface and hydrothermal biosphere with shared microbiota. The physiologies and activities of these uncultured subsurface lineages remain to be explored by innovative combinations of genomic and biogeochemical approaches.

Keywords: Ribosomal RNA; functional genes; marine sediments; deep subsurface; microbial diversity

Document Type: Research article

DOI: 10.1080/01490450600875613

Affiliations: 1: Dept of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, USA

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