Loy, Alexander


Publications
8

Ecophysiology and interactions of a taurine-respiring bacterium in the mouse gut

Citation
Ye et al. (2023). Nature Communications 14 (1)
Names
Taurinivorans muris Ts Taurinivorans
Abstract
AbstractTaurine-respiring gut bacteria produce H2S with ambivalent impact on host health. We report the isolation and ecophysiological characterization of a taurine-respiring mouse gut bacterium. Taurinivorans muris strain LT0009 represents a new widespread species that differs from the human gut sulfidogen Bilophila wadsworthia in its sulfur metabolism pathways and host distribution. T. muris specializes in taurine respiration in vivo, seemingly unaffected by mouse diet and genotype, but is dep

Novel taxa of Acidobacteriota implicated in seafloor sulfur cycling

Citation
Flieder et al. (2021). The ISME Journal 15 (11)
Names
Sulfomarinibacter kjeldsenii Ts Sulfomarinibacter Sulfomarinibacteraceae “Polarisedimenticola svalbardensis” “Polarisedimenticola” “Polarisedimenticolaceae” “Polarisedimenticolia” “Polarisedimenticolales”
Abstract
Abstract Acidobacteriota are widespread and often abundant in marine sediments, yet their metabolic and ecological properties are poorly understood. Here, we examined metabolisms and distributions of Acidobacteriota in marine sediments of Svalbard by functional predictions from metagenome-assembled genomes (MAGs), amplicon sequencing of 16S rRNA and dissimilatory sulfite reductase (dsrB) genes and transcripts, and gene expression analyses of tetrathionate-amended microcosms. Acido

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. Desulfobacterota 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

Draft Genome Sequence of Desulfosporosinus sp. Strain Sb-LF, Isolated from an Acidic Peatland in Germany

Citation
Hausmann et al. (2019). Microbiology Resource Announcements 8 (29)
Names
Abstract
Desulfosporosinus sp. strain Sb-LF was isolated from an acidic peatland in Bavaria, Germany. Here, we report the draft genome sequence of the sulfate-reducing and lactate-utilizing strain Sb-LF.

Long-Term Transcriptional Activity at Zero Growth of a Cosmopolitan Rare Biosphere Member

Citation
Hausmann et al. (2019). mBio 10 (1)
Names
Desulfosporosinus infrequens
Abstract
The microbial rare biosphere represents the largest pool of biodiversity on Earth and constitutes, in sum of all its members, a considerable part of a habitat’s biomass. Dormancy or starvation is typically used to explain the persistence of low-abundance microorganisms in the environment. We show that a low-abundance microorganism can be highly transcriptionally active while remaining in a zero-growth state for at least 7 weeks. Our results provide evidence that this zero growth at a high cellul