Abundances of hyperthermophilic autotrophic Fe(III) oxide reducers and heterotrophs in hydrothermal sulfide chimneys of the northeastern Pacific Ocean

Appl Environ Microbiol. 2009 Jan;75(1):242-5. doi: 10.1128/AEM.01462-08. Epub 2008 Oct 31.


The abundances of hyperthermophilic heterotrophs, methanogens, and autotrophic reducers of amorphous Fe(III) oxide in 18 samples of deep-sea hydrothermal vent sulfide chimneys of the Endeavour Segment were measured. The results indicate that conditions favor the growth of iron reducers toward the interiors of these deposits and that of heterotrophs toward the outer surfaces near high-temperature polychaete worms (Paralvinella sulfincola).

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Biodiversity*
  • Ferric Compounds / metabolism
  • Hot Springs / microbiology*
  • Methane / metabolism
  • Oxidation-Reduction
  • Pacific Ocean
  • Polychaeta / microbiology*
  • Seawater / microbiology*


  • Ferric Compounds
  • Methane