Nitrogen source influences the interactions of comammox bacteria with aerobic nitrifiers [PDF]
Microbiology SpectrumWhile 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 +8 more
doaj +4 more sources
Metagenomic Evidence for the Presence of Comammox
mSphere, 2016 We report metagenomic evidence for the presence of a Nitrospira-like organism with the metabolic potential to perform the complete oxidation of ammonia to nitrate (i.e., it is a complete ammonia oxidizer [comammox]) in a drinking water system.
Ameet J. Pinto +5 more
doaj +7 more sources
Comammox Nitrospira act as key bacteria in weakly acidic soil via potential cobalamin sharing [PDF]
iMetaThe 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 +5 more
doaj +4 more sources
Ecotoxicology and Environmental Safety, 2023 The construction of the reservoir has changed the nitrogen migration and transformation processes in the river, and a large amount of sediment deposition in the reservoir may also lead to the spatial differentiation of complete ammonia oxidation ...
Hang Ding +7 more
doaj +3 more sources
Geoderma, 2023 This study investigated the abundance of comammox bacteria and canonical ammonia-oxidizing bacteria (AOB) and archaea (AOA), and their relative contribution to nitrification along a chronosequence of deglaciated forelands.
Hanxia Yu +10 more
doaj +3 more sources
Monitoring complete ammonia oxidizers bacteria: relevant players for nitrogen removal from wastewater [PDF]
AMB ExpressCOMAMMOX (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 +6 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 XThis 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 +6 more
doaj +2 more sources
Nitrogen Kinetic Isotope Effects of Nitrification by the Complete Ammonia Oxidizer Nitrospira inopinata [PDF]
mSphere, 2021 Analysis of nitrogen isotope fractionation effects is useful for tracing biogeochemical nitrogen cycle processes. Nitrification can cause large nitrogen isotope effects through the enzymatic oxidation of ammonia (NH3) via nitrite (NO2−) to nitrate (NO3−)
Shurong Liu +5 more
doaj +3 more sources
Comprehensive evaluation of primer pairs targeting the ammonia monooxygenase subunit A gene of complete ammonia-oxidizing Nitrospira [PDF]
Microbiology SpectrumSince 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 +4 more
doaj +2 more sources
Functional redundancy and niche complementarity maintain nitrification stability in rapid sand filters [PDF]
Frontiers in MicrobiologyNitrification 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 +12 more
doaj +2 more sources