Research on nitrogen transformation pathways of a thermophilic heterotrophic nitrifying bacterial consortium GW7
The GW7 consortium demonstrated excellent nitrogen transformation capabilities, effectively utilizing ammonia nitrogen and contributing to the reduction of nitrogen losses in the aerobic composting process. The high enzymatic activities of key nitrogen-metabolizing enzymes, including AMO and HAO, support its role in heterotrophic nitrification. The proposed nitrogen conversion pathways, including ammonia assimilation, heterotrophic nitrification, and assimilatory nitrate reduction, highlight the versatile nitrogen metabolism of this bacterial consortium. The optimized cultivation conditions further enhance its practical application potential in mitigating nitrogen emissions during composting processes.
Authors
- Aiwen Zhang (ORCID: https://orcid.org/0000-0002-8760-3714)
- Rong‐Rong He (ORCID: https://orcid.org/0000-0001-5505-5672)
- Likun Sun (ORCID: https://orcid.org/0000-0001-9089-1836)
- Wenbo Qi (ORCID: https://orcid.org/0000-0001-7259-9751)
- Weiping Guan (ORCID: https://orcid.org/0000-0002-3955-5826)
- Jiali Wang (ORCID: https://orcid.org/0000-0001-5362-1546)
- Lin Dong (ORCID: https://orcid.org/0000-0002-8393-6669)
- Yongqi Ma
- Xisheng Tai (ORCID: https://orcid.org/0000-0003-0726-1329)
- Yindi Zhang (ORCID: https://orcid.org/0000-0003-2355-1537)
Institutions
- Gansu Agricultural University (CN)
- Gansu Provincial Agriculture and Animal Husbandry (CN)
- Institute of Modern Physics (CN)
- Lanzhou City University (CN)
Publication Details
- Journal
- Frontiers in Microbiology
- Published
- 2025-06-30
- DOI
- https://doi.org/10.3389/fmicb.2025.1578865
- Citations
- 3
- Primary Topic
- Wastewater Treatment and Nitrogen Removal
- Type
- article
- Field-Weighted Citation Impact
- 1.51
Funders
- National Natural Science Foundation of China