Effect of salt stress on aerobic methane oxidation and associated methanotrophs; a microcosm study of a natural community from a non-saline environment

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Ho, Adrian; Mo, Yongliang; Lee, Hyo Jung; Sauheitl, Leopold; Jia, Zhongjun; Horn, Marcus A.: Effect of salt stress on aerobic methane oxidation and associated methanotrophs; a microcosm study of a natural community from a non-saline environment. In: Soil Biology and Biochemistry 125 (2018), S. 210-214. DOI: https://doi.org/10.1016/j.soilbio.2018.07.013

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Abstract: 
We investigated the response of aerobic methane oxidation and the associated methanotrophs to salt-stress in a NaCl gradient ranging from 0 M (un-amended reference) to 0.6 M NaCl (seawater salinity) using a rice paddy soil as a model system. Salt-stress significantly inhibited methanotrophic activity at > 0.3 M NaCl at 0.6 M NaCl amendment, methanotrophic activity fully ceased. MiSeq sequencing of the pmoA gene and group-specific qPCR analyses revealed that type Ia methanotroph (Methylobacter) appeared to be favored under salinity up to 0.3 M NaCl, increasing in numerical abundance, while the type Ib was adversely affected. This suggests niche differentiation within members of the gammaproteobacterial methanotrophs. Overall, rice paddy soil methanotrophs showed remarkable resistance to salt-stress.
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: Article
Publishing status: acceptedVersion
Issue Date: 2018
Appears in Collections:Naturwissenschaftliche Fakultät

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1 image of flag of United States United States 9 34.62%
2 image of flag of Germany Germany 9 34.62%
3 image of flag of Korea, Republic of Korea, Republic of 2 7.69%
4 image of flag of Taiwan Taiwan 1 3.85%
5 image of flag of Thailand Thailand 1 3.85%
6 image of flag of Japan Japan 1 3.85%
7 image of flag of India India 1 3.85%
8 image of flag of Switzerland Switzerland 1 3.85%
9 image of flag of Belgium Belgium 1 3.85%

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