Mengjie Guo
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Mengjie Guo has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Dongsheng Fu
Institute of Polar Environment & Anhui Province Key Laboratory of Polar Environment and Emerging Pollutants, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
1 shared publication - Lijun Hou
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
1 shared publication - Renbin Zhu
Institute of Polar Environment & Anhui Province Key Laboratory of Polar Environment and Emerging Pollutants, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
1 shared publication - Yanling Zheng
State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai China
1 shared publication - Zeming Zhou
Institute of Polar Environment & Anhui Province Key Laboratory of Polar Environment and Emerging Pollutants, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
1 shared publication
Latest Publications
- Open Access
- 26 November 2025
- Published by Springer Nature in Microbial Ecology
- Vol. 89 (1)
Ubiquity and Dominance of Comammox Over AOB and AOA and their Links To ARGs in Antarctic Lake Sediments
Complete ammonia oxidizers (comammox), oxidizing ammonia to nitrate directly, have been found to exist widely in multiple environments, but their distribution patterns are still under-explored in Antarctic environments. For the first time, the sediments were collected from West Antarctic lakes to investigate distribution patterns and community structure for comammox, ammonia oxidizing archaea (AOA) and bacteria (AOB), and nitrite-oxidizing bacteria (NOB), as well as the associations between ammonia oxidizers and antibiotic resistance genes (ARGs). Comammox clade B and AOB were dominant ammonia oxidizers, with the abundances of (1.62 ± 0.10) × 102 – (5.21 ± 0.74) × 106 and (0.17 ± 0.05) × 105 – (4.79 ± 0.65) × 105 copies g− 1 sediment, respectively. Comammox clade B, instead of clade A, occurred in all sediments, exhibiting higher abundances than AOB and AOA in most of the sediments. The abundances for comammox clade B demonstrated significant positive correlation (p < 0.01) with NH4+-N levels, but negative correlation (p < 0.05) with C: N ratios. The coexistence of ammonia oxidizers in lake sediments was jointly structured by niche differentiation and environmental variables, and pH, modulated by penguin guano input, was found to be the most crucial factor in shaping their community structure. Co-occurrence network analyses revealed strong synergistic interactions between comammox and AOB, AOA, NOB, which played a critical role in nitrification processes. Our results further confirmed that comammox could act as important hosts for ARGs, hence stimulated their transmission and proliferation in the sediments. This study presented novel insights into the distribution patterns for ammonia oxidizers, their niche differentiation and the associations with ARGs in natural lake sediments of West Antarctica.
- 26 November 2025
- Published by Springer Nature in Microbial Ecology
- Vol. 89 (1)
Open AccessUbiquity and Dominance of Comammox Over AOB and AOA and their Links To ARGs in Antarctic Lake Sediments
Complete ammonia oxidizers (comammox), oxidizing ammonia to nitrate directly, have been found to exist widely in multiple environments, but their distribution patterns are still under-explored in Antarctic environments. For the first time, the sediments were collected from West Antarctic lakes to investigate distribution patterns and community structure for comammox, ammonia oxidizing archaea (AOA) and bacteria (AOB), and nitrite-oxidizing bacteria (NOB), as well as the associations between ammonia oxidizers and antibiotic resistance genes (ARGs). Comammox clade B and AOB were dominant ammonia oxidizers, with the abundances of (1.62 ± 0.10) × 102 – (5.21 ± 0.74) × 106 and (0.17 ± 0.05) × 105 – (4.79 ± 0.65) × 105 copies g− 1 sediment, respectively. Comammox clade B, instead of clade A, occurred in all sediments, exhibiting higher abundances than AOB and AOA in most of the sediments. The abundances for comammox clade B demonstrated significant positive correlation (p < 0.01) with NH4+-N levels, but negative correlation (p < 0.05) with C: N ratios. The coexistence of ammonia oxidizers in lake sediments was jointly structured by niche differentiation and environmental variables, and pH, modulated by penguin guano input, was found to be the most crucial factor in shaping their community structure. Co-occurrence network analyses revealed strong synergistic interactions between comammox and AOB, AOA, NOB, which played a critical role in nitrification processes. Our results further confirmed that comammox could act as important hosts for ARGs, hence stimulated their transmission and proliferation in the sediments. This study presented novel insights into the distribution patterns for ammonia oxidizers, their niche differentiation and the associations with ARGs in natural lake sediments of West Antarctica.