The pH-based ecological coherence of active canonical methanotrophs in paddy soils

Zhao, Jun; Cai, Yuanfeng; Jia, Zhongjun

doi:https://doi.org/10.5194/bg-17-1451-2020

Articles | Volume 17, issue 6

https://doi.org/10.5194/bg-17-1451-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-1451-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 6

Research article

|

23 Mar 2020

Research article |

| 23 Mar 2020

The pH-based ecological coherence of active canonical methanotrophs in paddy soils

Jun Zhao, Yuanfeng Cai, and Zhongjun Jia

Supplement

https://doi.org/10.5194/bg-17-1451-2020-supplement

Data sets

Type II and I methanotrophs in paddy soils J. Zhao, Y. F. Cai, and Z. J. Jia https://www.ebi.ac.uk/ena/data/view/PRJEB37235

Methanotrophs in wetland paddies J. Zhao, Y. F. Cai, and Z. J. Jia https://www.ebi.ac.uk/ena/data/view/PRJEB40045

Methanotrophic bacterium clone J. Zhao https://www.ncbi.nlm.nih.gov/nuccore/MK613983-MK613993

Uncultured methanotrophic bacterium clone J. Zhao https://www.ncbi.nlm.nih.gov/nuccore/MK621911-MK621913

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Short summary

We show that soil pH is a key factor in selecting distinct phylotypes of methanotrophs in paddy soils. Type II methanotrophs dominated the methane oxidation in low-pH soils, while type I methanotrophs were more active in high-pH soils. This pH-based niche differentiation of active methanotrophs appeared to be independent of nitrogen fertilization, but the inhibition of type II methanotrophic rate in low-pH soils by the fertilization might aggravate the emission of methane from paddy soils.