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Methanol oxidation by temperate soils and environmental determinants of associated methylotrophs

Titelangaben

Stacheter, Astrid ; Noll, Matthias ; Lee, Charles K. ; Selzer, Mirjam ; Glowik, Beate ; Ebertsch, Linda ; Mertel, Ralf ; Schulz, Daria ; Lampert, Niclas ; Drake, Harold L. ; Kolb, Steffen:
Methanol oxidation by temperate soils and environmental determinants of associated methylotrophs.
In: The ISME Journal. Bd. 7 (2013) Heft 5 . - S. 1051-1064.
ISSN 1751-7370
DOI: https://doi.org/10.1038/ismej.2012.167

Abstract

The role of soil methylotrophs in methanol exchange with the atmosphere has been widely overlooked. Methanol can be derived from plant polymers and be consumed by soil microbial communities. In the current study, methanol-utilizing methylotrophs of fourteen aerated soils were examined to resolve their comparative diversities and capacities to utilise ambient concentrations of methanol. Abundances of cultivable methylotrophs ranged from 10 6 to 10 8 g soilDW-1 . Methanol dissimilation was measured based on conversion of supplemented 14 C-methanol, and occurred at concentrations down to 0.002 µmol methanol g soilDW-1 . Tested soils exhibited specific affinities to methanol (a 0s = 0.01 d -1 ) that were similar to those of other environments suggesting that methylotrophs with similar affinities were present. Two deep-branching alphaproteobacterial genotypes of mch responded to the addition of ambient concentrations of methanol (≤0.6 µmol methanol g soilDW-1 ) in one of these soils. Methylotroph community structures were assessed by amplicon pyrosequencing of genes of mono carbon metabolism (mxaF, mch and fae). Alphaproteobacteria-affiliated genotypes were predominant in all investigated soils, and the occurrence of novel genotypes indicated a hitherto unveiled diversity of methylotrophs. Correlations between vegetation type, soil pH, and methylotroph community structure suggested that plant-methylotroph interactions were determinative for soil methylotrophs.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER111323
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Ökologische Mikrobiologie
Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie
Forschungseinrichtungen
Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 29 Jul 2015 05:53
Letzte Änderung: 23 Nov 2023 12:11
URI: https://eref.uni-bayreuth.de/id/eprint/17314