McMahon, Katherine D.


Publications
14

Refinement of the “ Candidatus Accumulibacter” genus based on metagenomic analysis of biological nutrient removal (BNR) pilot-scale plants operated with reduced aeration

Citation
Stewart et al. (2024). mSystems 9 (3)
Names
“Accumulibacter”
Abstract
ABSTRACT Members of the “ Candidatus Accumulibacter” genus are widely studied as key polyphosphate-accumulating organisms (PAOs) in biological nutrient removal (BNR) facilities performing enhanced biological phosphorus removal (EBPR). This diverse lineage includes 18 “ Ca . Accumulibacter” species, which have been proposed based on the phylogenetic divergence of the polyphosphate kinase 1 (

Refinement of the “CandidatusAccumulibacter” Genus Based on a Metagenomic Analysis of Biological Nutrient Removal (BNR) Pilot-Scale Plants Operated with Reduced Aeration

Citation
Stewart et al. (2023).
Names
“Accumulibacter” Ca. Accumulibacter jenkinsii
Abstract
ABSTRACTMembers of the “CandidatusAccumulibacter” genus are widely studied as key polyphosphate-accumulating organisms (PAOs) in biological nutrient removal (BNR) facilities performing enhanced biological phosphorus removal (EBPR). This diverse lineage includes 18 “Ca. Accumulibacter” species, which have been proposed based on the phylogenetic divergence of the polyphosphate kinase 1 (ppk1) gene and genome-scale comparisons of metagenome-assembled genomes (MAGs). Phylogenetic classification base

Reevaluation of the Phylogenetic Diversity and Global Distribution of the Genus “CandidatusAccumulibacter”

Citation
Petriglieri et al. (2022). mSystems 7 (3)
Names
“Accumulibacter” “Accumulibacter adiacens” “Accumulibacter meliphilus” “Accumulibacter propinquus” “Accumulibacter contiguus” “Accumulibacter vicinus” “Accumulibacter cognatus” “Accumulibacter affinis” “Accumulibacter proximus” “Accumulibacter necessarius” “Accumulibacter iunctus” “Accumulibacter similis” “Accumulibacter conexus” “Propionivibrio dominans” “Accumulibacter adjunctus” “Proximibacter danicus” “Proximibacter”
Abstract
“CandidatusAccumulibacter” is the most studied PAO, with a primary role in biological nutrient removal. However, the species-level taxonomy of this lineage is convoluted due to the use of different phylogenetic markers or genome sequencing approaches. Here, we redefined the phylogeny of these organisms, proposing a comprehensive approach which could be used to address the classification of other diverse and uncultivated lineages.

Re-evaluation of the phylogenetic diversity and global distribution of the genus Candidatus Accumulibacter

Citation
Petriglieri et al. (2021).
Names
“Accumulibacter” “Accumulibacter phosphatis”
Abstract
AbstractCandidatus Accumulibacter was the first microorganism identified as a polyphosphate-accumulating organism (PAO), important for phosphorus removal from wastewater. This genus is diverse, and the current phylogeny and taxonomic framework appears complicated, with the majority of publicly available genomes classified as “Candidatus Accumulibacter phosphatis”, despite notable phylogenetic divergence. The ppk1 marker gene allows for a finer scale differentiation into different “types” and “cl

Autotrophic and mixotrophic metabolism of an anammox bacterium revealed by in vivo13C and 2H metabolic network mapping

Citation
Lawson et al. (2019).
Names
“Kuenenia stuttgartensis”
Abstract
AbstractAnaerobic ammonium-oxidizing (anammox) bacteria mediate a key step in the biogeochemical nitrogen cycle and have been applied worldwide for the energy-efficient removal of nitrogen from wastewater. However, outside their core energy metabolism, little is known about the metabolic networks driving anammox bacterial anabolism and mixotrophy beyond genome-based predictions. Here, we experimentally resolved the central carbon metabolism of the anammox bacterium Candidatus ‘Kuenenia stuttgart

Integrated Omic Analyses Provide Evidence that a “ Candidatus Accumulibacter phosphatis” Strain Performs Denitrification under Microaerobic Conditions

Citation
Camejo et al. (2019). mSystems 4 (1)
Names
“Accumulibacter phosphatis”
Abstract
“ Candidatus Accumulibacter phosphatis” is widely found in full-scale wastewater treatment plants, where it has been identified as the key organism for biological removal of phosphorus. Since aeration can account for 50% of the energy use during wastewater treatment, microaerobic conditions for wastewater treatment have emerged as a cost-effective alternative to conventional biological nutrient removal processes. Our report provides strong genomics-based evid

Genome-Enabled Insights into the Ecophysiology of the Comammox Bacterium “ Candidatus Nitrospira nitrosa”

Citation
Camejo et al. (2017). mSystems 2 (5)
Names
Ca. Nitrospira nitrosa
Abstract
Nitrospira -like bacteria are among the most diverse and widespread nitrifiers in natural ecosystems and the dominant nitrite oxidizers in wastewater treatment plants (WWTPs). The recent discovery of comammox-like Nitrospira strains, capable of complete oxidation of ammonia to nitrate, raises new questions about specific traits responsible for the functional versatility and adaptation of this genus to a variety of environments. The availability of