Language:

Methanotrophy across a natural permafrost thaw environment

The ISME Journal, 2018-10, Vol.12 (10), p.2544-2558 [Peer Reviewed Journal]

2018. This work is published under http://creativecommons.org/licenses/by-nc-sa/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2018 ;ISSN: 1751-7362 ;ISSN: 1751-7370 ;EISSN: 1751-7370 ;DOI: 10.1038/s41396-018-0065-5 ;PMID: 29955139

Full text available

Citations Cited by

Actions
1. Add to My Research
2. Remove from My Research
3. E-mail
4. Print
5. Permalink
6. Citation
7. EasyBib
8. EndNote
9. RefWorks
10. Delicious
11. Export RIS
12. Export BibTeX

Title:
Methanotrophy across a natural permafrost thaw environment
Author: Singleton, Caitlin M ; McCalley, Carmody K ; Woodcroft, Ben J ; Boyd, Joel A ; Evans, Paul N ; Hodgkins, Suzanne B ; Chanton, Jeffrey P ; Frolking, Steve ; Crill, Patrick M ; Saleska, Scott R ; Rich, Virginia I ; Tyson, Gene W
Subjects: Atmosphere ; Bacteria ; Bacteria - genetics ; Bacteria - metabolism ; BASIC BIOLOGICAL SCIENCES ; Carbon ; Carbon - analysis ; Carbon Cycle ; Climate change ; Communities ; Community composition ; ENVIRONMENTAL SCIENCES ; Genomes ; GEOSCIENCES ; Global warming ; Isotopes ; Metagenome ; Metagenomics ; Methane ; Methane - analysis ; Methanotrophic bacteria ; Methanotrophs ; Microorganisms ; Oxidation ; Permafrost ; Permafrost - microbiology ; Population structure ; Pore water ; Soil Microbiology ; Sweden ; Temperature
Is Part Of: The ISME Journal, 2018-10, Vol.12 (10), p.2544-2558
Description: The fate of carbon sequestered in permafrost is a key concern for future global warming as this large carbon stock is rapidly becoming a net methane source due to widespread thaw. Methane release from permafrost is moderated by methanotrophs, which oxidise 20-60% of this methane before emission to the atmosphere. Despite the importance of methanotrophs to carbon cycling, these microorganisms are under-characterised and have not been studied across a natural permafrost thaw gradient. Here, we examine methanotroph communities from the active layer of a permafrost thaw gradient in Stordalen Mire (Abisko, Sweden) spanning three years, analysing 188 metagenomes and 24 metatranscriptomes paired with in situ biogeochemical data. Methanotroph community composition and activity varied significantly as thaw progressed from intact permafrost palsa, to partially thawed bog and fully thawed fen. Thirteen methanotroph population genomes were recovered, including two novel genomes belonging to the uncultivated upland soil cluster alpha (USCα) group and a novel potentially methanotrophic Hyphomicrobiaceae. Combined analysis of porewater δ C-CH isotopes and methanotroph abundances showed methane oxidation was greatest below the oxic-anoxic interface in the bog. These results detail the direct effect of thaw on autochthonous methanotroph communities, and their consequent changes in population structure, activity and methane moderation potential.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 1751-7362
ISSN: 1751-7370
EISSN: 1751-7370
DOI: 10.1038/s41396-018-0065-5
PMID: 29955139
Source: AUTh Library subscriptions: ProQuest Central
MEDLINE
PubMed Central
SWEPUB Freely available online

Back to results list


INSPIRE LIBRARY - TON DUC THANG UNIVERSITY	(84-028) 37 755 057	Feedback
19 Nguyen Huu Tho St. Dist.7, HCM	thuvien@tdtu.edu.vn	Feedback

Methanotrophy across a natural permafrost thaw environment

Searching Remote Databases, Please Wait