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Biodiversity of cryopegs in permafrost

  • David Gilichinsky
  • , Elizaveta Rivkina
  • , Corien Bakermans
  • , Viktoria Shcherbakova
  • , Lada Petrovskaya
  • , Svetlana Ozerskaya
  • , Natalia Ivanushkina
  • , Galina Kochkina
  • , Kyastus Laurinavichuis
  • , Svetlana Pecheritsina
  • , Rushania Fattakhova
  • , James M. Tiedje

Research output: Contribution to journal › Article › peer-review

Abstract

This study describes the biodiversity of the indigenous microbial community in the sodium-chloride water brines (cryopegs) derived from ancient marine sediments and sandwiched within permafrost 100-120,000 years ago after the Arctic Ocean regression. Cryopegs remain liquid at the in situ temperature of -9 to -11°C and make up the only habitat on the Earth that is characterized by permanently subzero temperatures, high salinity, and the absence of external influence during geological time. From these cryopegs, anaerobic and aerobic, spore-less and spore-forming, halotolerant and halophilic, psychrophilic and psychrotrophic bacteria, mycelial fungi and yeast were isolated and their activity was detected below 0°C.

Original languageEnglish (US)
Pages (from-to)117-128
Number of pages12
JournalFEMS microbiology ecology
Volume53
Issue number1
DOIs
StatePublished - Jun 1 2005

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 14 - Life Below Water
    SDG 14 Life Below Water

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Ecology
  • Applied Microbiology and Biotechnology

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