Wagner, Michael


Publications
28

Candidatus Nitrosocosmicus members are the dominant archaea associated with pepper (Capsicum annuum L.) and ginseng (Panax ginseng C.A. Mey.) plants rhizospheres

Citation
Lee et al. (2024).
Names
Ca. Nitrosocosmicus
Abstract
Background: Although archaea are widespread in terrestrial environments, little is known about the selection forces that shape their composition, functions, survival, and proliferation strategies in the rhizosphere. The ammonia-oxidizing archaea (AOA), which are abundant in soil environments, catalyze the first step of nitrification and have the potential to influence plant growth and development significantly. Results: Based on archaeal 16S rRNA and amoA gene (encoding the ammonia monooxygenase

Genomic insights into diverse bacterial taxa that degrade extracellular DNA in marine sediments

Citation
Wasmund et al. (2021). Nature Microbiology 6 (7)
Names
“Izemoplasma acidinucleici” Ca. Izemoplasma Ca. Izemoplasmatales
Abstract
AbstractExtracellular DNA is a major macromolecule in global element cycles, and is a particularly crucial phosphorus, nitrogen and carbon source for microorganisms in the seafloor. Nevertheless, the identities, ecophysiology and genetic features of DNA-foraging microorganisms in marine sediments are largely unknown. Here, we combined microcosm experiments, DNA stable isotope probing (SIP), single-cell SIP using nano-scale secondary isotope mass spectrometry (NanoSIMS) and genome-centric metagen

Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities

Citation
Waite et al. (2020). International Journal of Systematic and Evolutionary Microbiology 70 (11)
Names
“Desulfofervidales” Ca. Desulfofervidaceae Ca. Desulfofervidus “Desulfofervidia” Ca. Magnetomorum “Magnetomoraceae” “Adiutricaceae” Ca. Adiutrix Myxococcota “Adiutricales”
Abstract
The class Deltaproteobacteria comprises an ecologically and metabolically diverse group of bacteria best known for dissimilatory sulphate reduction and predatory behaviour. Although this lineage is the fourth described class of the phylum Proteobacteria , it rarely affiliates with other proteobacterial classes and is freque

Correction: Cultivation and characterization of Candidatus Nitrosocosmicus exaquare, an ammonia-oxidizing archaeon from a municipal wastewater treatment system

Citation
Sauder et al. (2020). The ISME Journal 14 (9)
Names
Ca. Nitrosocosmicus exaquare
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Membrane Lipid Composition of the Moderately Thermophilic Ammonia-Oxidizing Archaeon “ Candidatus Nitrosotenuis uzonensis” at Different Growth Temperatures

Citation
Bale et al. (2019). Applied and Environmental Microbiology 85 (20)
Names
Ca. Nitrosotenuis uzonensis
Abstract
For Thaumarchaeota , the ratio of their glycerol dialkyl glycerol tetraether (GDGT) lipids depends on growth temperature, a premise that forms the basis of the widely applied TEX 86 paleotemperature proxy. A thorough understanding of which GDGTs are produced by which Thaumarchaeota and what the effect of temperature is on their GDGT composition is essential for constraining the TEX 86 pro

On the evolution and physiology of cable bacteria

Citation
Kjeldsen et al. (2019). Proceedings of the National Academy of Sciences 116 (38)
Names
Electronema Electrothrix Electrothrix communis Ts Electrothrix arhusiensis Electronema aureum Ts
Abstract
Cable bacteria of the family Desulfobulbaceae form centimeter-long filaments comprising thousands of cells. They occur worldwide in the surface of aquatic sediments, where they connect sulfide oxidation with oxygen or nitrate reduction via long-distance electron transport. In the absence of pure cultures, we used single-filament genomics and metagenomics to retrieve draft genomes of 3 marine Candidatus Electrothrix and 1 freshwater Ca.

Characterization of the First “ Candidatus Nitrotoga” Isolate Reveals Metabolic Versatility and Separate Evolution of Widespread Nitrite-Oxidizing Bacteria

Citation
Kitzinger et al. (2018). mBio 9 (4)
Names
Ca. Nitrotoga Ca. Nitrotoga fabula
Abstract
ABSTRACT Nitrification is a key process of the biogeochemical nitrogen cycle and of biological wastewater treatment. The second step, nitrite oxidation to nitrate, is catalyzed by phylogenetically diverse, chemolithoautotrophic nitrite-oxidizing bacteria (NOB). Uncultured NOB from the genus “ Candidatus Nitrotoga” are widespread in natural and engineered ecosystems. Knowledge about their biology is sparse, because no genomic information and no pure

Cultivation and genomic analysis ofCandidatusNitrosocaldus islandicus, a novel obligately thermophilic ammonia-oxidizingThaumarchaeon

Citation
Daebeler et al. (2017).
Names
Ca. Nitrosocaldus islandicus
Abstract
AbstractAmmonia-oxidizing archaea (AOA) within the phylumThaumarchaeaare the only known aerobic ammonia oxidizers in geothermal environments. Although molecular data indicate the presence of phylogenetically diverse AOA from theNitrosocaldusclade, group 1.1b and group 1.1aThaumarchaeain terrestrial high-temperature habitats, only one enrichment culture of an AOA thriving above 50 °C has been reported and functionally analyzed. In this study, we physiologically and genomically characterized a nov

Cultivation and characterization of Candidatus Nitrosocosmicus exaquare, an ammonia-oxidizing archaeon from a municipal wastewater treatment system

Citation
Sauder et al. (2017). The ISME Journal 11 (5)
Names
Ca. Nitrosocosmicus exaquare
Abstract
AbstractThaumarchaeota have been detected in several industrial and municipal wastewater treatment plants (WWTPs), despite the fact that ammonia-oxidizing archaea (AOA) are thought to be adapted to low ammonia environments. However, the activity, physiology and metabolism of WWTP-associated AOA remain poorly understood. We report the cultivation and complete genome sequence of Candidatus Nitrosocosmicus exaquare, a novel AOA representative from a municipal WWTP in Guelph, Ontario (Canada). In en