Kleiner, Manuel


Publications
4

Horizontal acquisition of a patchwork Calvin cycle by symbiotic and free-living Campylobacterota (formerly Epsilonproteobacteria)

Citation
Assié et al. (2020). The ISME Journal 14 (1)
Names
“Thiobarbaceae” Ca. Thiobarba
Abstract
AbstractMost autotrophs use the Calvin–Benson–Bassham (CBB) cycle for carbon fixation. In contrast, all currently described autotrophs from the Campylobacterota (previously Epsilonproteobacteria) use the reductive tricarboxylic acid cycle (rTCA) instead. We discovered campylobacterotal epibionts (“CandidatusThiobarba”) of deep-sea mussels that have acquired a complete CBB cycle and may have lost most key genes of the rTCA cycle. Intriguingly, the phylogenies of campylobacterotal CBB cycle genes

Two intracellular and cell type-specific bacterial symbionts in the placozoan Trichoplax H2

Citation
Gruber-Vodicka et al. (2019). Nature Microbiology 4 (9)
Names
“Grellia alia”
Abstract
AbstractPlacozoa is an enigmatic phylum of simple, microscopic, marine metazoans1,2. Although intracellular bacteria have been found in all members of this phylum, almost nothing is known about their identity, location and interactions with their host3–6. We used metagenomic and metatranscriptomic sequencing of single host individuals, plus metaproteomic and imaging analyses, to show that the placozoan Trichoplax sp. H2 lives in symbiosis with two intracellular bacteria. One symbiont forms an un