Results 21 to 30 of about 1,784 (205)

Nutrient-Limited Enrichments of Nitrifiers From Soil Yield Consortia of Nitrosocosmicus-Affiliated AOA and Nitrospira-Affiliated NOB

Frontiers in Microbiology, 2021
The discovery of ammonia-oxidizing archaea (AOA) and complete ammonia-oxidizing (comammox) bacteria widespread in terrestrial ecosystems indicates an important role of these organisms in terrestrial nitrification.
Jonathan Rodriguez, Seemanti Chakrabarti, Eunkyung Choi, Nisreen Shehadeh, Samantha Sierra-Martinez, Jun Zhao, Willm Martens-Habbena   +6 more
doaj   +1 more source

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

Imeta
AbstractThe 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. However, the response of comammox Nitrospira to varying pH levels and its ecological role in these environments remains ...
Zhao Y, Hu J, Wang J, Yao X, Zhang T, Hu B.   +5 more
europepmc   +4 more sources

Sustained nitrogen loss in a symbiotic association of ComammoxNitrospiraand Anammox bacteria [PDF]

Water Research, 2020
ABSTRACTThe discovery of complete aerobic and anaerobic ammonia-oxidizing bacteria (Comammox and Anammox) significantly altered our understanding of the global nitrogen cycle. A high affinity for ammonia (Km(app),NH3≈ 63nM) and oxygen place the first described isolate, ComammoxNitrospira inopinatain the same trophic category as organisms such as some ...
Ekaterina Y. Gottshall, Sam J. Bryson, Kathryn I. Cogert, Matthieu Landreau, Christopher J. Sedlacek, David A. Stahl, Holger Daims, Mari Winkler   +7 more
openaire   +3 more sources

Diversity and abundance of comammox bacteria in the sediments of an urban lake [PDF]

Journal of Applied Microbiology, 2020
Although comammox have been discovered in a variety of ecosystems, there are few studies in urban lakes. This paper attempted to confirm whether this ammonia-oxidizing microbe exists in urban lakes and to determine the factors influencing its existence.This study investigated the diversity and abundance of comammox bacteria in sediments of a typical ...
Y. Xu, J. Lu, Y. Wang, G. Liu, X. Wan, Y. Hua, D. Zhu, J. Zhao   +7 more
openaire   +3 more sources

Photoinhibition of comammox reaction in Nitrospira inopinata in a dose- and wavelength-dependent manner

Frontiers in Microbiology, 2022
Apparent contribution of complete ammonia-oxidizing organisms (comammox) to the global nitrogen cycle highlights the necessity for understanding niche differentiation of comammox bacteria among other ammonia oxidizers. While the high affinity for ammonia
Ekaterina Y. Gottshall, Bruce Godfrey, Bo Li, Britt Abrahamson, Wei Qin, Mari Winkler   +5 more
doaj   +1 more source

Variation, distribution, and diversity of canonical ammonia-oxidizing microorganisms and complete-nitrifying bacteria in highly contaminated ecological restoration regions in the Siding mine area

Ecotoxicology and Environmental Safety, 2021
Canonical ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB) and complete-nitrifying bacteria (comammox) exist in a variety of ecosystems.
Yi Li, Ying Liang, Haichun Zhang, Yuan Liu, Jing Zhu, Jie Xu, Zhenming Zhou, Jiangming Ma, Kehui Liu, Fangming Yu   +9 more
doaj   +1 more source

Expanding perspectives of soil nitrification to include ammonia‐oxidizing archaea and comammox bacteria [PDF]

Soil Science Society of America Journal, 2020
Abstract Catalyzed by multiple groups of phylogenetically distinct microorganisms, soil nitrification impacts ground water quality, greenhouse gas emissions, and agricultural practices. This review explores known microbial players involved in nitrification, encompassing aspects of biogeography, phylogenetic ...
Xinda Lu, Anne E. Taylor, David D. Myrold, Josh D. Neufeld   +3 more
openaire   +1 more source

Differential responses of canonical nitrifiers and comammox Nitrospira to long-term fertilization in an Alfisol of Northeast China

Frontiers in Microbiology, 2023
The newly identified complete ammonia oxidizer (comammox) that converts ammonia directly into nitrate has redefined the long-held paradigm of two-step nitrification mediated by two distinct groups of nitrifiers.
Yanan Wang, Xibai Zeng, Qiang Ma, Yang Zhang, Wantai Yu, Zhong Zheng, Nan Zhang, Liyang Xu   +7 more
doaj   +1 more source

Benzimidazole fungicide biotransformation by comammox Nitrospira bacteria: Transformation pathways and associated proteomic responses

Journal of Hazardous Materials, 2023
Benzimidazole fungicides are frequently detected in aquatic environments and pose a serious health risk. Here, we investigated the metabolic capacity of the recently discovered complete ammonia-oxidizing (comammox) Nitrospira inopinata and kreftii to transform a representative set of benzimidazole fungicides (i.e., benzimidazole, albendazole ...
Ping Han, Ana B. Rios-Miguel, Xiufeng Tang, Yaochun Yu, Li-Jun Zhou, Lijun Hou, Min Liu, Dongyao Sun, Mike S.M. Jetten, Cornelia U. Welte, Yujie Men, Sebastian Lücker   +11 more
openaire   +3 more sources

Salinity changes the nitrification activity and community composition of comammox Nitrospira in intertidal sediments of Yangtze River estuary

mSystems, 2023
The newly discovered complete ammonia-oxidizing (comammox) Nitrospira has been identified in different environments, including coastal environments, where salinity is one of the most important factors for the abundance and activity of nitrifiers.
Ran Jiang, Wen-Jing Qin, Ru-Yi Zhang, Kai Zhang, Xing Huang, Yong Li, Chen-Hao Zhou, Ting Zhu, Yan Zhang, Bin Zou, Ming Nie, Sung-Keun Rhee, Zhe-Xue Quan   +12 more
doaj   +1 more source