Methane-cycling microorganisms in soils of a high-alpine altitudinal gradient

FEMS Microbiology Ecology
Katrin HofmannPaul Illmer

Abstract

Methanogens and methanotrophs play unique roles as producers and consumers of the greenhouse gas methane (CH4) in soils, respectively. Here, we aimed to reveal whether and to which extent methane-cyclers occur in high-alpine soils, and to assess their spatial distribution along an altitudinal gradient (2700-3500 m) in the Austrian Alps at sites located within the alpine (2700-2900 m), the alpine-nival (3000-3100 m) and the nival belts (3200-3500 m). Methanococcales and Methanocella spp. were most abundant among all quantified methanogenic guilds, whereas Methanosarcinales were not detected in the studied soil. The detected methanogens seem to be capable of persisting despite a highly oxic low-temperature environment. Methanogenic and methanotrophic activities and abundances of methanotrophs, Methanococcales and Methanocella spp. declined with altitude. Methanogenic and methanotrophic abundances were best explained by mean annual soil temperature and dissolved organic carbon, respectively. Alpine belt soils harbored significantly more methane-cyclers than those of the nival belt, indicating some influence of plant cover. Our results show that methanogens are capable of persisting in high-alpine cold soils and might help to under...Continue Reading

References

May 7, 2003·Applied and Environmental Microbiology·Steffen KolbRalf Conrad
Nov 7, 2003·Applied and Environmental Microbiology·Claudia KniefPeter F Dunfield
Jul 8, 2005·Applied and Environmental Microbiology·Claudia KniefAmnat Chidthaisong
Oct 29, 2005·Science·Dagmar SchröterBärbel Zierl
Apr 1, 1995·Applied and Environmental Microbiology·V Peters, R Conrad
Sep 1, 1996·Applied and Environmental Microbiology·S Schnell, G M King
Nov 9, 2007·Trends in Ecology & Evolution·Christian Körner
Jan 1, 2008·Applied and Environmental Microbiology·Ian R McDonaldJ Colin Murrell
Oct 16, 2010·Nature Reviews. Microbiology·Brajesh K SinghDave S Reay
Feb 2, 2011·PloS One·Sebastian RealAlbert Tauler
Sep 3, 2011·Environmental Microbiology·Jennifer PratscherRalf Conrad
Apr 25, 2012·Folia Microbiologica·Andreas O WagnerPaul Illmer
Mar 26, 2013·Global Change Biology·Benjamin W SullivanStephen C Hart
May 31, 2013·Environmental Microbiology·Loïc NazariesBrajesh K Singh
Oct 1, 2009·Environmental Microbiology Reports·Steffen Kolb
Oct 1, 2010·Environmental Microbiology Reports·Eric S BoydJohn W Peters

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Citations

Oct 19, 2017·Ecological Applications : a Publication of the Ecological Society of America·Hélène GenetZhiliang Zhu
Aug 12, 2020·FEMS Microbiology Ecology·Caitlin I Looby, Patrick H Martin
Nov 1, 2016·FEMS Microbiology Ecology·Josef ElsterMax Häggblom

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