Interactions of bacteria with plants

Microbiology

Many bacteria produce small diffusible signal molecules to co-ordinate expression of particular phenotypic traits, a phenomenon known as quorum sensing (QS). Often the regulated functions are involved in the pathogenesis or symbiosis of the bacteria. Hence, QS not only enables bacteria to communicate with each other but also provides an interface for interactions with their eukaryotic hosts. Our main interest is to unravel the molecular mechanisms underlying QS in members of the genus Burkholderia and to understand the role of QS for the ecology of the organisms in their natural habitats, particularly for pathogenic or symbiotic interactions with plants.

Inhibition of quorum sensing was shown to represent a highly attractive option for the treatment of bacterial infections in humans. Using genetic and biochemical tools we have developed a high throughput screen to identify respective drug candidates. The main focus of this line of research is in the detection of compounds in vegetables, spices and plants.

Research topics

  • Quorum sensing in bacteria

  • Bacteria-plant interactions

  • Burkholderia diversity

  • Plant-derived QS blocker

Interdisciplinary

  • Functional genomics

  • Secondary metabolites Infection models

  • Bacteria-host interactions

Contact Person

Prof. Dr. Leo Eberl

University of Zurich
Institute of Plant Biology
Website
leberl-at-botinst.uzh.ch
+41 (0)44 634 82 20

eligible for PLANT FELLOWS

Recent publications

  • Title: Ajoene, a Sulfur-Rich Molecule from Garlic, Inhibits Genes Controlled by Quorum Sensing
    Author(s): Jakobsen, Tim Holm; van Gennip, Maria; Phipps, Richard Kerry; et al.
    Source: ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 56 (5): 2314-2325 MAY 2012
    Document type: Article (Details)
  • Title: Dynamics of AHL mediated quorum sensing under flow and non-flow conditions
    Author(s): Meyer, Andrea; Megerle, Judith A.; Kuttler, Christina; et al.
    Source: PHYSICAL BIOLOGY, 9 (2): APR 2012
    Document type: Article (Details)
  • Title: Paraoxonase 2 (PON2) functions as a quorum sensing quenching factor in human keratinocytes
    Author(s): Simanski, M.; Eberl, L.; Harder, J.
    Source: EXPERIMENTAL DERMATOLOGY, 21 (3): e34-e34 MAR 2012
    Document type: Meeting Abstract (Details)
  • Title: Different protein expression profiles in cheese and clinical isolates of Enterococcus faecalis revealed by proteomic analysis
    Author(s): Pessione, Alessandro; Lamberti, Cristina; Cocolin, Luca; et al.
    Source: PROTEOMICS, 12 (3): 431-447 FEB 2012
    Document type: Article (Details)
  • Title: Exposing the third chromosome of Burkholderia cepacia complex strains as a virulence plasmid
    Author(s): Agnoli, K.; Schwager, S.; Uehlinger, S.; et al.
    Source: MOLECULAR MICROBIOLOGY, 83 (2): 362-378 JAN 2012
    Document type: Article (Details)