Projects per year
Personal profile
Research interests
- Microbial symbioses, with emphasis on bacterial symbionts of protozoa and insects
- Evolution of intracellular bacteria
- Microbial genome evolution
- Interaction between intracellular bacteria and eukaryotic host cells
Awards
FWF START Award 2005
ERC Starting Grant (Consolidator Track) 2011
Memberships
Austrian Academy of Science (ÖAW) - Junge Kurie
Curriculum vitae
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Dive into the research topics where Matthias Horn is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Giant viruses in the wild
Horn, M. (Project Lead), Willemsen, A. (Cooperation Partner), Schulz, F. (Cooperation Partner), Pilhofer, M. (Cooperation Partner) & Arthofer, P. (Cooperation Partner)
1/06/24 → 31/05/28
Project: Research funding
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Host range and genome adaptation of giant viruses
Horn, M. (Project Lead) & Willemsen, A. (Co-Lead)
1/04/21 → 30/06/23
Project: Research funding
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The Mexican leech Haementeria officinalis and its nutritional symbiont as a model system for the study of strict blood-feeding animal-microbe symbioses and bacteriocyte development
Horn, M. (Project Lead) & Manzano Marín, A. (Co-Lead)
15/01/20 → 14/01/22
Project: Research funding
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Mimivirus transcription and translation occur at well-defined locations within amoeba host cells
Mayer, L., Nikolov, G., Kunert, M., Horn, M. & Willemsen, A. (Corresponding author), 13 Jun 2025, In: Journal of Virology. 99, 7, 13 p., e00554-25.Publications: Contribution to journal › Article › Peer Reviewed
Open Access -
Novel high-quality amoeba genomes reveal widespread codon usage mismatch between giant viruses and their hosts
Willemsen, A. (Corresponding author), Manzano-Marín, A. & Horn, M., 6 Jan 2025, In: Genome Biology and Evolution. 17, 1, 18 p., evae271.Publications: Contribution to journal › Article › Peer Reviewed
Open Access -
The adaptation of chlamydiae to facultative host multicellularity
Helmlinger, L., Arthofer, P., Cyran, N., Collingro, A. & Horn, M. (Corresponding author), 21 Jul 2025, In: Current Biology. 35, 14, p. 3368-3380.e4 18 p.Publications: Contribution to journal › Article › Peer Reviewed
Open Access
Activities
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Beyond pathogenesis: How chlamydial symbionts shape amoeba biology and microbial communities
Horn, M. (Speaker)
26 Sept 2025Activity: Talks and presentations › Talk or oral contribution › Science to Science
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Horizontal gene transfer as an evolutionary lifeline in intracellular bacteria
Horn, M. (Speaker)
25 Aug 2025Activity: Talks and presentations › Talk or oral contribution › Science to Science
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The ecology and evolution of bacterial symbionts in amoebae
Horn, M. (Speaker)
11 Mar 2025Activity: Talks and presentations › Talk or oral contribution › Science to Science