Results 1 to 10 of about 2,030 (196)

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   +4 more sources

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   +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

AmoA-Targeted Polymerase Chain Reaction Primers for the Specific Detection and Quantification of Comammox Nitrospira in the Environment

Frontiers in Microbiology, 2017
Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be catalyzed by the concerted activity of ammonia- and nitrite-oxidizing microorganisms.
Petra Pjevac, Clemens Schauberger, Lianna Poghosyan, Craig W. Herbold, Maartje A. H. J. van Kessel, Anne Daebeler, Michaela Steinberger, Mike S. M. Jetten, Sebastian Lücker, Michael Wagner, Holger Daims   +10 more
doaj   +3 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

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

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

Transcriptional activity of ammonia oxidisers in response to soil temperature, moisture and nitrogen amendment [PDF]

Frontiers in Microbiology
The contrasting response of AOA, AOB, and comammox Nitrospira amoA transcript abundance to temperature, moisture, and nitrogen was investigated using soil microcosms.
Chris Chisholm, Hong Di, Keith Cameron, Andriy Podolyan, Jupei Shen, Limei Zhang, Kosala Sirisena, Xueying Che   +7 more
doaj   +2 more sources

Nitrification inhibitor chlorate and nitrogen substrates differentially affect comammox Nitrospira in a grassland soil [PDF]

Frontiers in Microbiology
IntroductionThrough the combined use of two nitrification inhibitors, Dicyandiamide (DCD) and chlorate with nitrogen amendment, this study aimed to investigate the contribution of comammox Nitrospira clade B, ammonia oxidizing bacteria (AOB) and archaea (
Anish S. Shah, Pei-Chun Hsu, Chris Chisholm, Andriy Podolyan, Keith Cameron, Jiafa Luo, Roland Stenger, Sam Carrick, Wei Hu, Scott A. Ferguson, Wenhua Wei, Jupei Shen, Limei Zhang, Hongbin Liu, Tongke Zhao, Wenxue Wei, Weixin Ding, Hong Pan, Yimeng Liu, Bowen Li, Jianjun Du, Hong J. Di   +21 more
doaj   +2 more sources