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Low yield and abiotic origin of N2O formed by the complete nitrifier Nitrospira inopinata

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Listed:
  • K. Dimitri Kits

    (University of Vienna)

  • Man-Young Jung

    (University of Vienna)

  • Julia Vierheilig

    (University of Vienna
    Division of Water Quality and Health
    Interuniversity Cooperation Centre for Water and Health)

  • Petra Pjevac

    (University of Vienna)

  • Christopher J. Sedlacek

    (University of Vienna)

  • Shurong Liu

    (University of Vienna
    University of Vienna)

  • Craig Herbold

    (University of Vienna)

  • Lisa Y. Stein

    (University of Alberta)

  • Andreas Richter

    (University of Vienna
    University of Vienna)

  • Holger Wissel

    (Forschungszentrum Jülich GmbH)

  • Nicolas Brüggemann

    (Forschungszentrum Jülich GmbH)

  • Michael Wagner

    (University of Vienna
    University of Vienna)

  • Holger Daims

    (University of Vienna
    University of Vienna)

Abstract

Nitrous oxide (N2O) and nitric oxide (NO) are atmospheric trace gases that contribute to climate change and affect stratospheric and ground-level ozone concentrations. Ammonia oxidizing bacteria (AOB) and archaea (AOA) are key players in the nitrogen cycle and major producers of N2O and NO globally. However, nothing is known about N2O and NO production by the recently discovered and widely distributed complete ammonia oxidizers (comammox). Here, we show that the comammox bacterium Nitrospira inopinata is sensitive to inhibition by an NO scavenger, cannot denitrify to N2O, and emits N2O at levels that are comparable to AOA but much lower than AOB. Furthermore, we demonstrate that N2O formed by N. inopinata formed under varying oxygen regimes originates from abiotic conversion of hydroxylamine. Our findings indicate that comammox microbes may produce less N2O during nitrification than AOB.

Suggested Citation

  • K. Dimitri Kits & Man-Young Jung & Julia Vierheilig & Petra Pjevac & Christopher J. Sedlacek & Shurong Liu & Craig Herbold & Lisa Y. Stein & Andreas Richter & Holger Wissel & Nicolas Brüggemann & Mich, 2019. "Low yield and abiotic origin of N2O formed by the complete nitrifier Nitrospira inopinata," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09790-x
    DOI: 10.1038/s41467-019-09790-x
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    Cited by:

    1. He, Yanying & Li, Yiming & Li, Xuecheng & Liu, Yingrui & Wang, Yufen & Guo, Haixiao & Hou, Jiaqi & Zhu, Tingting & Liu, Yiwen, 2023. "Net-zero greenhouse gas emission from wastewater treatment: Mechanisms, opportunities and perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 184(C).
    2. Ping Han & Xiufeng Tang & Hanna Koch & Xiyang Dong & Lijun Hou & Danhe Wang & Qian Zhao & Zhe Li & Min Liu & Sebastian Lücker & Guitao Shi, 2024. "Unveiling unique microbial nitrogen cycling and nitrification driver in coastal Antarctica," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    3. Jie Zhou & Yanling Zheng & Lijun Hou & Zhirui An & Feiyang Chen & Bolin Liu & Li Wu & Lin Qi & Hongpo Dong & Ping Han & Guoyu Yin & Xia Liang & Yi Yang & Xiaofei Li & Dengzhou Gao & Ye Li & Zhanfei Li, 2023. "Effects of acidification on nitrification and associated nitrous oxide emission in estuarine and coastal waters," Nature Communications, Nature, vol. 14(1), pages 1-13, December.

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