Microbial Ecology of Fe (hydr)oxide Mats and Basaltic Rock from Vailulu'u Seamount, American Samoa

Lisa A. Sudek, Alexis S. Templeton, Bradley Tebo, Hubert Staudigel

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Microbial community analysis of a deep-sea volcanic and hydrothermal system at Vailulu'u Seamount yielded 89 new organisms and three detailed 16S-rRNA gene clone libraries (one rock and two microbial mats). Proteobacterial communities dominate in most environments, but important differences are found between microbial mats from distinctly different geochemical environments and for the rock surface. Many cultured organisms are metabolically and functionally diverse, displaying at least two of the tested functions: Heterotrophy, Fe(II) and Mn(II) oxidation, and siderophore-production. Metabolic versatility of microorganisms is suggested as an important trait allowing diverse populations of bacteria to adapt to these environments.

Original languageEnglish (US)
Pages (from-to)581-596
Number of pages16
JournalGeomicrobiology Journal
Volume26
Issue number8
DOIs
StatePublished - Dec 2009

Fingerprint

American Samoa
microbial ecology
Ecology
seamount
Oxides
microbial mat
Rocks
oxide
Siderophores
Heterotrophic Processes
Microorganisms
rock
heterotrophy
Bacteria
siderophore
Genes
hydrothermal system
Gene Library
rRNA Genes
Oceans and Seas

Keywords

  • Biogeochemical cycling
  • Community structure
  • Deep biosphere
  • Iron-oxidizing bacteria
  • Molecular ecology

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Microbiology
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Microbial Ecology of Fe (hydr)oxide Mats and Basaltic Rock from Vailulu'u Seamount, American Samoa. / Sudek, Lisa A.; Templeton, Alexis S.; Tebo, Bradley; Staudigel, Hubert.

In: Geomicrobiology Journal, Vol. 26, No. 8, 12.2009, p. 581-596.

Research output: Contribution to journalArticle

Sudek, Lisa A. ; Templeton, Alexis S. ; Tebo, Bradley ; Staudigel, Hubert. / Microbial Ecology of Fe (hydr)oxide Mats and Basaltic Rock from Vailulu'u Seamount, American Samoa. In: Geomicrobiology Journal. 2009 ; Vol. 26, No. 8. pp. 581-596.
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