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Zentralinstitut für Ernährungs- und Lebensmittelforschung (ZIEL)

Abteilung Mikrobiologie
Technische Universität München
Weihenstephaner Berg 3
D-85350 Freising

The Chair for Microbial Ecology is led by Siegfried Scherer. (Department of Biosciences, Wissenschaftszentrum Weihenstephan). The Chair for Microbial Ecology is associated to ZIEL Research Center for Nutrition and Food Sciences 

Fundamental research concentrates on the ecology and molecular genetics of food borne pathogens. Several research groups in the department work on Listeria monocytogenes, Bacillus cereus, Salmonella enterica, Yersinia enterocolitica and enterohemorrhagic Escherichia coli.

Applied research is performed in close cooperation with the food industry, with a focus on the characterization of food borne microbes, including identifiction of bacteria and yeasts, description of novel taxa and analysis of the biodiversity of food borne microbial consortia.

The Department of Microbiology runs a microbial diagnostics unit, connected with a consulting service for the food industry with respect tp prevention and analysis of microbiological quality assurance problems.


A sensitive and robust method for direct determination of lipolytic activity in natural milk environment (März 2016, online first)

Spoilage of vacuum-packed beef by the yeast Kazachstania psychrophila (Jan 2016)

VisExpress: Visual exploration of differential gene Expression data (Dez. 2015)

Evidence for the recent origin of a bacterial protein-coding, overlapping orphan gene by evolutionary overprinting (Dez. 2015)

Pathogen-nematode interactioni: Nitrogen supply of Listeria monocytogenes during growth in Caenorhabditis elegans (Dez 2015)

Massive horizontal gene transfer, strictly vertical inheritance and ancient duplications differentially shape the evolution of Bacillus cereus enterotoxin operons hbl, cytK and nhe (Nov. 2015)

The Mutation Glu151Asp in the B-Component of the Bacillus cereus Non-Hemolytic Enterotoxin (Nhe) Leads to a Diverging Reactivity in Antibody-Based Detection Systems (Nov. 2015)

Ces locus embedded proteins control the non-ribosomal synthesis of the cereulide toxin in emetic Bacillus cereus on multiple Levels (Oktober 2015)

Biodiversity of refrigerated raw milk microbiota and their enzymatic spoilage potential (Sept.2015)

Isolation and characterisation of a heat-resistant peptidase from Pseudomonas panacis withstanding general UHT processes (Sept. 2015)

Depsipeptide intermediates interrogate proposed biosynthesis of Cereulide, the Emetic Toxin of Bacillus cereus (Mai 2015)

From genome to toxicity: a combinatory approach Highlights the complexity of enterotoxin production in Bacillus cereus (Juni 2015)

Chemodiversity of cereulide, the emetic Toxin of Bacillus cereus (2015)

Comparison of strand-specific transcriptomes of enterohemorrhagic Escherichia coli O157:H7 EDL933 (EHEC) under eleven different environmental conditions including radish sprouts and cattle feces (Juni 2014)

AiF 16907 N Schlussbericht

AiF 16588 N Schlussbericht

AiF 16845 N Kurzbericht

Emetische Toxinproduktion von Bacillus cereus in ausgewählten Lebensmitteln: Mechanismen und Präventionsmöglichkeiten