• Corpus ID: 127766899

Active prokaryotic communities along a thermally and geochemically variable transect in Guaymas Basin hydrothermal sediments

  title={Active prokaryotic communities along a thermally and geochemically variable transect in Guaymas Basin hydrothermal sediments},
  author={Zena Cardman},
  • Z. Cardman
  • Published 1 August 2014
  • Environmental Science
Zena Cardman: Active prokaryotic communities along a thermally and geochemically variable transect in Guaymas Basin hydrothermal sediments (Under the direction of Andreas Teske) The microbial inhabitants of deep-sea vents are genetically and metabolically diverse, and often make a living at the edge of biological temperature limits. Guaymas Basin, a nascent spreading center in the Gulf of California, provides a unique environment in which to study prokaryotic communities across a range of… 


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Microbial Diversity of Hydrothermal Sediments in the Guaymas Basin: Evidence for Anaerobic Methanotrophic Communities
The combined evidence from bacterial phylogeny and molecular-isotopic data indicates an important role of some novel deeply branching bacteria in anaerobic methanotrophy in the trophic ecology of methane-rich hydrothermal vents.
Anaerobic oxidation of methane at different temperature regimes in Guaymas Basin hydrothermal sediments
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The visual patchiness of microbial mats reflects sharp discontinuities in microbial community structure and activity over sub-meter spatial scales and has to be taken into account in geochemical and microbiological inventories of seep environments.
Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin.
  • F. Inagaki, T. Nunoura, B. Jørgensen
  • Environmental Science, Geography
    Proceedings of the National Academy of Sciences of the United States of America
  • 2006
Results from cluster and principal component analyses, which include previously reported data from the West and East Pacific Margins, suggest that, for these locations in the Pacific Ocean, prokaryotic communities from methane hydrate-bearing sediment cores are distinct from those in Hydrate-free cores.
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The archaeal component of anaerobic oxidation of methane is comprised of an active population of mainly ANME-1b in this hypersaline sediment, indicating that electron donors other than methane, perhaps petroleum-derived hydrocarbons, drive sulfate reduction.
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Cold seep environments such as sediments above outcropping hydrate at Hydrate Ridge (Cascadia margin off Oregon) are characterized by methane venting, high sulfide fluxes caused by the anaerobic