Research Projects

Current Research Projects

Metabolic labeling of complex microbial communities (MSCA-DN METAMIC3)

Start: since 01.10.2025  

Funding: HORIZON TMA MSCA Doctoral Networks

METAMIC3 - Metaproteome-based leveraged microbiome management in the context of One Health
People
We are looking for a new PhD student!

 

This project aims to applying protein-labeling techniques such as protein-stable isotope probing (SIP) and click chemistry approaches such as bioorthogonal non-canonical amino acid tagging (BONCAT) for an enhanced identification of metabolic active microbes (WP3). We will apply these techniques to reconstruct metabolic networks in microbial communities originating from various environmental and organismal samples, identify the cellular response of single species, or simplify MOCK communities relevant to specific objectives described in WP1. This will reveal the influence of antimicrobial effectors in different microbiomes. In addition, the replication of phages triggered by microbe-phage interactions or environmental stress will be confirmed by BONCAT (in collaboration with AUAS).

 

 

Methabreed - Reduction of methane emissions in dairy cows

Sustainable reduction of methane emissions in dairy farms considering breeding strategies, improved feed efficiency and animal health (project 4)

Duration: 2025-2027
Funding by Bundesanstalt für Landwirtschaft und Ernährung

 
Partners

- Förderverein Bioökonomieforschung e.V. (FBF)
- Vereinigte Informationssysteme Tierhaltung w.V. (vit)
- Justus-Liebig-Universität Gießen (JLU)
- Christian-Albrechts-Universität zu Kiel (CAU)

Correlation of metal homeostasis and catabolism of Prevotellaceae in the rumen

Start: since 01.01.2025  

Funding: DFG (327953272)

People
Publications from previous project:

 

Deusch S, Bok E, Schleicher L, Seifert J, Steuber J (2019) Occurrence and function of the Na+-translocating NADH:Quinone oxidoreductase in Prevotella spp. Microorganisms 7(5), 117, doi: 10.3390/microorganisms7050117

Schleicher L, Fritz G, Seifert J, Steuber J (2020) Anoxic cell rupture of Prevotella bryantii by high-pressure homogenization protects the Na+-translocating NADH:quinone oxidoreductase from oxidative damage. Archive of Microbiology 202, 1263–1266, doi: 10.1007/s00203-019-01805-x

Trautmann A, Schleicher L, Deusch S, Gätgens J, Steuber J, Seifert J (2020) Short-chain fatty acids modulate metabolic pathways and membrane lipids in Prevotella bryantii B14. Proteomes. 8, 28; doi:10.3390/proteomes8040028

Schleicher L, Trautmann A, Stegmann D, Fritz G, Gätgens J, Bott M, Hein S, Simon J, Seifert J, Steuber J (2021) A sodium-translocating module linking succinate production to formation of a membrane potential in Prevotella bryantii. Applied and Environmental Microbiology. doi.10.1128/AEM.01211-21.

Trautmann A, Schleicher L, Pfirrmann J, Boldt C, Steuber J, Seifert J (2021) Na+-coupled respiration and reshaping of extracellular polysaccharide layer counteract monensin-induced cation permeability in Prevotella bryantii B14. International Journal of Molecular Sciences 22: 10202; doi.10.3390/ijms221910202.

Trautmann A, Schleicher L, Koch A, Günther J, Steuber J, Seifert J. (2022) A shift towards succinate-producing Prevotella in the ruminal microbiome challenged with monensin. Proteomics. e2200121. doi: 10.1002/pmic.202200121

 

Hau JL, Schleicher L, Herdan S, Simon J, Seifert J, Fritz G, Steuber J (2023) Functionality of the Na+-translocating NADH:quinone oxidoreductase and quinol:fumarate reductase from Prevotella bryantii inferred from homology modeling. Archives in Microbiology. 206(1):32. doi: 10.1007/s00203-023-03769-5.

Host-Microbiome Interaction: Implications for cellular and global energy metabolism of dairy cows (WiMiQ)

WiMiQ

2024- 2026

DFG: Projektnummer 202989534

In collaboration with FLI Braunschweig (Dr J. Frahm, Prof. S. Dänicke), Uni Bonn (Prof. H. Sauerwein)

 
Publications

from previous project MitoCow

Tröscher-Mußotter J, Saenz JS, Grindler S, Meyer J, Kononov SU, Mezger B, Borda-Molina D, Frahm J, Dänicke S, Camarinha-Silva A, Huber K, Seifert J (2021) Microbiome clusters disclose physiologic variances in dairy cows challenged by calving and lipopolysaccharides.

mSystems 6(5):e00856; doi.org/10.1128/mSystems.00856-21

Tröscher-Mußotter J, Deusch S, Borda-Molina D, Frahm J, Dänicke S, Camarinha-Silva A, Huber K, Seifert J (2022) Cow’s microbiome from antepartum to postpartum: A long-term study covering two physiological challenges.

Frontiers in Microbiology 13. doi: 10.3389/fmicb.2022.1000750

Project in the DFG Research Unit ‘Appearance and physiological relevance of inositol phosphates and myo-inositol in the domesticated fowl’ FOR 2601

Project time: 2022-2025

People
Groups

2023-2026
Funding: Bundesanstalt für Landwirtschaft und Ernährung

Groups

This is a collaborative project with Prof. Amélia Camarinha-Silva und Prof. Markus Rodehutscord.

 

Partnership program The Hebrew University of Jerusalem – University of Hohenheim

2024-2025

Dr. Kfir Sharabi (Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem)

 

 

Terminated Research Projects

Duration: 2017-2022
DFG (SE 2059/3-1)

People
Publications

 

Deusch S, Bok E, Schleicher L, Seifert J, Steuber J (2019) Occurrence and function of the Na+-translocating NADH:Quinone oxidoreductase in Prevotella spp. Microorganisms 7(5), 117, doi: 10.3390/microorganisms7050117

Schleicher L, Fritz G, Seifert J, Steuber J (2020) Anoxic cell rupture of Prevotella bryantii by high-pressure homogenization protects the Na+-translocating NADH:quinone oxidoreductase from oxidative damage. Archive of Microbiology 202, 1263–1266, doi: 10.1007/s00203-019-01805-x

Trautmann A, Schleicher L, Deusch S, Gätgens J, Steuber J, Seifert J (2020) Short-chain fatty acids modulate metabolic pathways and membrane lipids in Prevotella bryantii B14. Proteomes. 8, 28; doi:10.3390/proteomes8040028

Schleicher L, Trautmann A, Stegmann D, Fritz G, Gätgens J, Bott M, Hein S, Simon J, Seifert J, Steuber J (2021) A sodium-translocating module linking succinate production to formation of a membrane potential in Prevotella bryantii. Applied and Environmental Microbiology. doi.10.1128/AEM.01211-21.

Trautmann A, Schleicher L, Pfirrmann J, Boldt C, Steuber J, Seifert J (2021) Na+-coupled respiration and reshaping of extracellular polysaccharide layer counteract monensin-induced cation permeability in Prevotella bryantii B14. International Journal of Molecular Sciences 22: 10202; doi.10.3390/ijms221910202.

Trautmann A, Schleicher L, Koch A, Günther J, Steuber J, Seifert J. (2022) A shift towards succinate-producing Prevotella in the ruminal microbiome challenged with monensin. Proteomics. e2200121. doi: 10.1002/pmic.202200121

 

Hau JL, Schleicher L, Herdan S, Simon J, Seifert J, Fritz G, Steuber J (2023) Functionality of the Na+-translocating NADH:quinone oxidoreductase and quinol:fumarate reductase from Prevotella bryantii inferred from homology modeling. Archives in Microbiology. 206(1):32. doi: 10.1007/s00203-023-03769-5.

01.07.2017 - 2022

People
Groups
Publications

Tröscher-Mußotter J, Saenz JS, Grindler S, Meyer J, Kononov SU, Mezger B, Borda-Molina D, Frahm J, Dänicke S, Camarinha-Silva A, Huber K, Seifert J (2021) Microbiome clusters disclose physiologic variances in dairy cows challenged by calving and lipopolysaccharides.

mSystems 6(5):e00856; doi.org/10.1128/mSystems.00856-21

 

Tröscher-Mußotter J, Deusch S, Borda-Molina D, Frahm J, Dänicke S, Camarinha-Silva A, Huber K, Seifert J (2022) Cow’s microbiome from antepartum to postpartum: A long-term study covering two physiological challenges.

Frontiers in Microbiology 13. doi: 10.3389/fmicb.2022.1000750

Project within DFG Research Unit ‘Appearance and physiological relevance of inositol phosphates and myo-inositol in the domesticated fowl’ FOR 2601

Projektbeginn: 01.05.2018
Projektende: 31.12.2021

People

 

Publications

Röhm K, Gonzalez-Uarquin F, Harmel RK, Trung MN, Diener M, Fiedler D, Huber K, Seifert J. (2021) Investigation of a potential electrogenic transport-system for myo-inositol in the small intestine of laying hens.    British Poultry Science; doi.org/10.1080/00071668.2021.1958301

 

Röhm K, Diener M, Huber K, Seifert J. (2021) Characterization of the cecal smooth muscle contraction in laying hens. Veterinary Sciences 8(6), 91; doi.org/10.3390/vetsci8060091

 

 

 

 

Start: 01.08.2019
Wilhelm Schaumann Stiftung

People
Collaborators

This is a collaborative project together with Prof. Amélia Camarinha-Silva, Prof. Markus Rodehutscord and Prof. Jörn Bennewitz.

Publications

Kurz A, Seifert J (2021) Factors Influencing Proteolysis and Protein Utilization in the Intestine of Pigs: A Review.

Animals 11(12):3551; doi.org/10.3390/ani11123551

Sarpong N, Seifert J, Bennewitz J, Rodehutscord M, Camarinha-Silva A (2024) Microbial signatures and enterotype clusters in fattening pigs: implications for nitrogen utilization efficiency.

Frontiers in Microbiology.15. doi: 10.3389/fmicb.2024.1354537

Schmid M, Weishaar R, Seifert J, Camarinha-Silva A, Rodehutscord M, Bennewitz J (2024) Genomic analyses of nitrogen utilization efficiency, its indicator trait blood urea nitrogen and the relationship to classical growth performance and feed efficiency traits in a Landrace x Piétrain crossbred population.

Journal of Animal Breeding and Genetics. doi: 10.1111/jbg.12864

 

 

 

Project in the DFG Research Unit ‘Appearance and physiological relevance of inositol phosphates and myo-inositol in the domesticated fowl’ FOR 2601

Project time: 2018-2022

People
Groups

Project time: 2019-2022
Funding: EU, BMBF

Researchers
Groups

Publications

Serrano-Villar S, Tincati C, Raju SC, Sáenz JS, Moreno E, Bargiela R, Cabello A, Sendagorta E, Kurz A, Perez Molina JA, de Benito A, Hov JR, Fernandez-Lopez L, Muriel A, del Campo R, Moreno S, Trøseid M, Seifert J, Ferrer M. (2023) Microbiome-derived cobalamin and succinyl-CoA as biomarkers for improved screening of anal cancer.

Nature Medicine. 29. 1738-1749. doi:10.1038/s41591-023-02407-3