Metagenomes from Thawing Low-Soil-Organic-Carbon Mineral Cryosols and Permafrost of the Canadian High Arctic

Author:

Chauhan Archana12,Layton Alice C.134,Vishnivetskaya Tatiana A.1,Williams Daniel1,Pfiffner Susan M.13,Rekepalli Bhanu5,Stackhouse Brandon6,Lau Maggie C. Y.6,Phelps Tommy J.47,Mykytczuk Nadia8,Ronholm Jennifer9,Whyte Lyle9,Onstott Tullis C.6,Sayler Gary S.123

Affiliation:

1. Center for Environmental Biotechnology, University of Tennessee, Knoxville, Tennessee, USA

2. Joint Institute for Biological Sciences, University of Tennessee, Knoxville, and Oak Ridge National Laboratory, Knoxville, Tennessee, USA

3. Department of Microbiology, University of Tennessee, Knoxville, Tennessee, USA

4. Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, Tennessee, USA

5. National Institute for Computational Sciences, University of Tennessee, Knoxville, and Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

6. Department of Geosciences, Princeton University, Princeton, New Jersey, USA

7. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

8. Vale Living with Lakes Centre, Laurentian University, Sudbury, Ontario, Canada

9. Department of Natural Resource Sciences, Macdonald Campus of McGill University, Ste. Anne de Bellevue, Quebec, Canada

Abstract

ABSTRACT Microbial release of greenhouse gases from thawing permafrost is a global concern. Seventy-six metagenomes were generated from low-soil-organic-carbon mineral cryosols from Axel Heiberg Island, Nunavut, Canada, during a controlled thawing experiment. Permafrost thawing resulted in an increase in anaerobic fermenters and sulfate-reducing bacteria but not methanogens.

Publisher

American Society for Microbiology

Subject

Genetics,Molecular Biology

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