Rattei, Thomas


Publications
8

The Fish Pathogen “Candidatus Clavichlamydia salmonicola”—A Missing Link in the Evolution of Chlamydial Pathogens of Humans

Citation
Collingro et al. (2023). Genome Biology and Evolution 15 (8)
Names
“Clavichlamydia salmonicola”
Abstract
Abstract Chlamydiae like Chlamydia trachomatis and Chlamydia psittaci are well-known human and animal pathogens. Yet, the chlamydiae are a much larger group of evolutionary ancient obligate intracellular bacteria that includes predominantly symbionts of protists and diverse animals. This makes them ideal model organisms to study evolutionary transitions from symbionts in microbial eukaryotes to pathogens of humans. To this end, comparative genome analysis has served as an importan

Novel taxa of Acidobacteriota implicated in seafloor sulfur cycling

Citation
Flieder et al. (2021). The ISME Journal 15 (11)
Names
“Polarisedimenticolales” “Polarisedimenticolia” “Polarisedimenticolaceae” “Polarisedimenticola” “Polarisedimenticola svalbardensis” Sulfomarinibacteraceae Sulfomarinibacter Sulfomarinibacter kjeldsenii Ts
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
Ca. Izemoplasmatales Ca. Izemoplasma “Izemoplasma acidinucleici”
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

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

The Genome of the Amoeba Symbiont “ Candidatus Amoebophilus asiaticus” Reveals Common Mechanisms for Host Cell Interaction among Amoeba-Associated Bacteria

Citation
Schmitz-Esser et al. (2010). Journal of Bacteriology 192 (4)
Names
Ca. Amoebophilus asiaticus
Abstract
ABSTRACT Protozoa play host for many intracellular bacteria and are important for the adaptation of pathogenic bacteria to eukaryotic cells. We analyzed the genome sequence of “ Candidatus Amoebophilus asiaticus,” an obligate intracellular amoeba symbiont belonging to the Bacteroidetes . The genome has a size of 1.89 Mbp, encodes 1,557 proteins, and shows massive proliferation of IS elements (24% of all genes), although the g