Results 1 to 10 of about 1,348 (145)

Comammox Nitrospira act as key bacteria in weakly acidic soil via potential cobalamin sharing [PDF]

iMeta
The discovery of comammox Nitrospira in low pH environments has reshaped the ammonia oxidation process in acidic settings, providing a plausible explanation for the higher nitrification rates observed in weakly acidic soils.
Yuxiang Zhao, Jiajie Hu, Jiaqi Wang, Xiangwu Yao, Tong Zhang, Baolan Hu   +5 more
doaj   +3 more sources

Nitrogen source influences the interactions of comammox bacteria with aerobic nitrifiers [PDF]

Microbiology Spectrum
While the co-existence of comammox Nitrospira with canonical nitrifiers is well documented in diverse ecosystems, there is still a dearth of knowledge about the mechanisms underpinning their interactions.
Katherine Jeanne Vilardi, Juliet Johnston, Zihan Dai, Irmarie Cotto, Erin Tuttle, Ariana Patterson, Aron Stubbins, Kelsey J. Pieper, Ameet J. Pinto   +8 more
doaj   +3 more sources

Ubiquity and Dominance of Comammox Over AOB and AOA and their Links To ARGs in Antarctic Lake Sediments. [PDF]

Microb Ecol
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.
Guo M, Zhou Z, Zheng Y, Fu D, Hou L, Zhu R.   +5 more
europepmc   +2 more sources

Monitoring complete ammonia oxidizers bacteria: relevant players for nitrogen removal from wastewater [PDF]

AMB Express
COMAMMOX (Complete Ammonia Oxidizers) bacteria seem to play an important role in nitrification, being able to directly transform ammonia into nitrates. Due to the relevance of this process in WWTPs, different approaches were used in this work to monitor ...
Javier Duque, Leire Besga-Oyanarte, Miguel De Celis, Susana Serrano, José Luis Alonso, Antonio Santos, Lucía Arregui   +6 more
doaj   +2 more sources

Impact of comammox process on membrane-aerated biofilm reactor for autotrophic nitrogen removal

Water Research X
This study compared the simulation results of the side-stream membrane-aerated biofilm reactor (MABR) in terms of total nitrogen (TN) removal and N2O production obtained by the conventional comammox-exclusive biological nitrogen removal (BNR) model and ...
Jiaying Hou, Ying Zhu, Fangang Meng, Bing-Jie Ni, Xueming Chen   +4 more
doaj   +2 more sources

Unraveling the important role of comammox Nitrospira to nitrification in the coastal aquaculture system [PDF]

Frontiers in Microbiology
Increasing nitrogen (N) input to coastal ecosystems poses a serious environmental threat. It is important to understand the responses and feedback of N removal microbial communities, particularly nitrifiers including the newly recognized complete ammonia-
Xueqin Yang, Yongjie Wu, Longfei Shu, Hang Gu, Fei Liu, Jijuan Ding, Jiaxiong Zeng, Cheng Wang, Zhili He, Zhili He, Meiying Xu, Feifei Liu, Xiafei Zheng, Bo Wu   +13 more
doaj   +2 more sources

Comparative enrichment of complete ammonium oxidation bacteria in floccular sludge reactors: Sequencing batch reactor vs. continuous stirred tank reactor [PDF]

Water Research X
This study attempted to compare the enrichment of complete ammonium oxidation (comammox) bacteria, which are affiliated with Nitrospira and not able to generate nitrous oxide (N2O, a potent greenhouse gas) through biological pathways, in two commonly ...
Ying Zhu, Jiaying Hou, Fangang Meng, Meiying Xu, Limin Lin, Linyan Yang, Xueming Chen   +6 more
doaj   +2 more sources

Acid tolerance and metabolic potential of comammox and nitrite-oxidizing <i>Nitrospira</i> enriched from soil. [PDF]

ISME Commun
Nitrification is the two-step microbial oxidation of ammonia to nitrate via nitrite, and it can contribute to environmental problems in soils. Some nitrifiers have been cultivated from acidic soils at pH
Takahashi Y, Fujitani H, Taniguchi I, Gotoh Y, Shimada Y, Ikeda S, Hayashi T, Tago K, Hayatsu M, Tsuneda S.   +9 more
europepmc   +2 more sources

Comprehensive evaluation of primer pairs targeting the ammonia monooxygenase subunit A gene of complete ammonia-oxidizing Nitrospira [PDF]

Microbiology Spectrum
Since the discovery of complete ammonia oxidizers (comammox) within the genus Nitrospira, their distribution and abundance across habitats have been intensively studied to better understand their ecological significance.
Pieter Blom, Garrett J. Smith, Maartje A. H. J. van Kessel, Hanna Koch, Sebastian Lücker   +4 more
doaj   +2 more sources

Functional redundancy and niche complementarity maintain nitrification stability in rapid sand filters [PDF]

Frontiers in Microbiology
Nitrification in drinking water biofilters is mediated by a complex guild of ammonia oxidizers, yet the mechanisms facilitating the coexistence of these functionally redundant nitrifier guild members are not well understood.
Alejandro Palomo, Alejandro Palomo, Alejandro Palomo, S. Jane Fowler, S. Jane Fowler, Ibrahim M. Nemer, Borja Valverde-Pérez, Yan Zheng, Yan Zheng, Yunjie Ma, Yunjie Ma, Barth F. Smets, Barth F. Smets   +12 more
doaj   +2 more sources