Permafrost Meta-Omics and Climate Change

Rachel Mackelprang, Scott Saleska, Carsten Suhr Jacobsen, Janet K. Jansson, Neslihan Taş

Research output: Contribution to journalReview article

26 Scopus citations

Abstract

Permanently frozen soil, or permafrost, covers a large portion of the Earth's terrestrial surface and represents a unique environment for cold-adapted microorganisms. As permafrost thaws, previously protected organic matter becomes available for microbial degradation. Microbes that decompose soil carbon produce carbon dioxide and other greenhouse gases, contributing substantially to climate change. Next-generation sequencing and other -omics technologies offer opportunities to discover the mechanisms by which microbial communities regulate the loss of carbon and the emission of greenhouse gases from thawing permafrost regions. Analysis of nucleic acids and proteins taken directly from permafrost-associated soils has provided new insights into microbial communities and their functions in Arctic environments that are increasingly impacted by climate change. In this article we review current information from various molecular -omics studies on permafrost microbial ecology and explore the relevance of these insights to our current understanding of the dynamics of permafrost loss due to climate change.

Original languageEnglish (US)
Pages (from-to)439-462
Number of pages24
JournalAnnual Review of Earth and Planetary Sciences
Volume44
DOIs
StatePublished - Jun 29 2016

Keywords

  • Arctic
  • Bioinformatics
  • Global warming
  • Metagenomics
  • Microbiology
  • Next-generation sequencing

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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