Rapid reactivation of deep subsurface microbes in the presence of C-1 compounds

Pauliina Rajala (Corresponding Author), Malin Bomberg, Riikka Kietäväinen, Ilmo Kukkonen, Lasse Ahonen, Mari Nyyssönen, Merja Itävaara

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Microorganisms in the deep biosphere are believed to conduct little metabolic activity due to low nutrient availability in these environments. However, destructive penetration to long-isolated bedrock environments during construction of underground waste repositories can lead to increased nutrient availability and potentially affect the long-term stability of the repository systems. Here we studied how microorganisms present in fracture fluid from a depth of 1500 m in Outokumpu, Finland respond to simple carbon compounds (C-1 compounds) in the presence or absence of sulphate as an electron acceptor.
Original languageEnglish
Pages (from-to)17-33
JournalMicroorganisms
Volume3
Issue number1
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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Keywords

  • deep biosphere
  • deep subsurface microorganisms
  • activity of microbes
  • C-1 compounds
  • methane
  • methanol
  • transcripts
  • functional gene

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