People

Monika Maurhofer

Position	Senior Researcher
Current site of work	ETH Zürich, Institut für Integrative Biologie
Street, number	LFW B 25, Universitätstrasse 2
City	Zürich
Postal code	8092
Country	Switzerland
E-mail	monika.maurhofer@agrl.ethz.ch
Phone	+41 44 632 38 68
Mobile phone
Degree, Msc, or PhD; when; where; on what subject; title of the thesis	Dipl. sc. nat. 1988 Swiss Federal Institute of Technology (ETH Zürich) Dr. sc. nat. 1993 Institute of Phytopathology/Plant Sciences, Swiss Federal Institute of Technology (ETH Zürich). Titel of thesis: Mechanisms of suppression of plant diseases by Pseudomonas fluorescens strain CHA0: influence of antibiotic overproduction, role of the antibiotic pyoluteorin and induction of resistance in plants
Expertise
Professional societies	Member of the Swiss Society of Phytiatry
Research experience, training, professional stages	Since 2000: Leader of a research group on biological control of plant diseases at the Institute of Integrative Biology, ETH Zürich. Teacher of BSc and MSc courses in systematic biology (algae and fungi) as well as in plant pathology at ETH Zürich
Website	http://www.path.ethz.ch/people/members/current_members/ mmaurhof/index
Current research area	Mechanisms of biocontrol of plant diseases by Pseudomonas fluorescens Diversity of plant growth-promoting root-colonizing bacteria in soil Signaling beween plants, fungal pathogens and beneficial bacteria in the rhizosphere Risk assessment of fungal biocontrol agents Insecticidal acticity in plant beneficial pseudomonads

Publication List (last five years):

Ahonsi, M. O., Boss, D., Maurhofer, M., and Défago, G. 2006. Potential environmental fate of elsinochrome A a perylenequinone toxine produced in culture by bindweed biocontrol fungus Stagonospora convolvuli LA39. The Environmentalist 26:183-193.

Ahonsi, M. O., Maurhofer, M., Boss, D., and Défago, G. 2005. Relationship between aggressiveness of Stagonospora sp. isolates on field and hedge bindweeds, and in vitro production of fungal metabolites cercosporin, elsinochrome A and leptosphaerodione. Europ. J. Plant Pathol. 111:203-215.

Angeli, D., Pellegrini, E., Maurhofer, M., Pertot, I., Micheli, S., Ress, D., and Gessler, C. 2009. Molecular characterization of Ampelomyces spp. isolates from different hosts and geographic origins and evaluation of their potential to control powdery mildew of cucumber. Pages 40-44 in: Molecular Tools for Understanding and Improving Biocontrol. Y. Elad, M. Maurhofer, C. Keel, C. Gessler and B. Duffy, eds. IOBC/WPRS Bulletin 43.

Baehler, E., Bottiglieri, M., Péchy-Tarr, M., Maurhofer, M., and Keel, C. 2005. Use of green fluorescent protein-based reporters to monitor balanced production of antifungal compounds in the biocontrol agent Pseudomonas fluorescens CHA0. J. Appl. Microbiol. 99: 24-38

Baehler, E., de Werra, P., Wick, L. Y., Péchy-Tarr, M., Mathys, S., Maurhofer, M., and Keel, C. 2006. Two novel MvaT-like global regulators control exoproduct formation and biocontrol activity in root-associated Pseudomonas fluorescens CHA0. Mol. Plant-Microbe Interact. 19:313-329.

Bjørnlund, L., Keel, C., Rønn, R., Maurhofer, M., Péchy-Tarrk, M., and Nybroe, O. 2009. Gac-regulated metabolites prevent Caenorhabditis elegans from digesting Pseudomonas and protect this nematode from killer flagellates. The ISME Journal 3: 770-779. doi:10.1038/ismej.2009.28

Boss, D., Maurhofer, M., Schläpfer, E. and Défago, G. 2007.. Elsinochrome A production by the bindweed biocontrol fungus Stagonospora convolvuli LA39 does not pose a risk to the environment or the consumer of treated crops. FEMS Microbiol. Ecol. 59:194-205.

Boss D., Maurhofer M., Zala M., Défago G., Brunner PC. 2007. ISSR Fingerprinting for the assessment of the bindweed biocontrol agent Stagonospora convolvuli LA39 after field release. Letters Appl. Microbiol. 45:244-251.

De Werra, P., Baehler, E., Huser, A., Keel, C., and Maurhofer, M. 2008. Detection of Plant-Modulated Alterations in Antifungal Gene Expression in Pseudomonas fluorescens CHA0 on Roots by Flow Cytometry. Appl. Environm. Microbiol. Appl . Environ. Microbiol. 74 (5): 1139-1349.

De Werra, P., Huser, A., Baehler, E., Keel, C., and Maurhofer, M. 2006. Using flow cytometry for in situ monitoring of antimicrobial compound production in the biocontrol bacteria Pseudomonas fluorescens CHA0. Pages 117-121 in Multitrophic Interactions In Soil And Integrated Control. J. M. Raaijmakers, R. A. Sikora, eds. IOBC/WPRS Bulletin 29 (2).

De Werra, P., Péchy-Tarr, M., Keel, C., and Maurhofer, M. Role of gluconic acid production in the regulation of biocontrol activity of Pseudomonas fluorescens. Appl. Environ. Microbiol. 75: 4162-4174

Jamali, F., Sharifi-Tehrani, A., Lutz, MP., and Maurhofer, M. 2009. Influence of Host Plant Genotype, Presence of a Pathogen and Coinoculation with Pseudomonas fluorescens Strains on the Rhizosphere Expression of Hydrogen Cyanide- and 2,4-Diacetylphloroglucinol Biosynthetic Genes in Pseudomonas fluorescens Biocontrol Strain CHA0. Microb. Ecol. 57:267-275.

Lemanceau, P., Maurhofer, M., and Défago, G. 2006. Contribution of studies on suppressive soils to the identification of bacterial biocontrol agents and to the knowledge of their modes of action. Pages 231-267 in: Plant- Associated Bacteria. S. S: Gnanamanickam, ed., Springer NL.

Loper, J. E., Bruck, D., Pechy-Tarr, M., Maurhofer, M., Keel, C., and Gross, H. 2008. Genomic analysis of secondary metabolite production by Pseudomonas fluorescens Pf-5. Paper number 101 in: Biology of Plant-Microbe Interactions, Volume 6. M. Lorito, S. L. Woo, and F. Scala, eds. International Society for Molecular Plant-Microbe Interactions, St. Paul, MN.

Lutz, M, P., Défago, G., and Maurhofer, M. 2009. The nutrient status of the pathogen can have an impact on the importance of different biocontrol mechanisms in Pseudomonas fluorescens CHA0. Pages 149-154 in: Molecular Tools for Understanding and Improving Biocontrol. Y. Elad, M. Maurhofer, C. Keel, C. Gessler and B. Duffy, eds. IOBC/WPRS Bulletin 43.

Lutz, M. P., Wenger, S., Maurhofer, M., Défago, G., and Duffy, B. 2004. Signaling between bacterial and fungal biocontrol agents in a strain mixture. FEMS Microbiol. Ecol. 48:447- 455.

Maurhofer, M., Bähler, E., Notz, R., Martinez, V., and Keel, C. 2004. Crosstalk between 2,4-diacetylphloroglucinol-producing biocontrol pseudomonads on wheat roots. Appl. Environ. Microbiol. 70 (4):1990-1998.

Maurhofer, M., Boss, D., Ahonsi, M. O., and Défago, G. 2007. Development of mycoherbicides and evaluation of potential risks (using Stagonospora as a model). Pages 275-290 in: Exploitation of Fungi. G. Robson, ed. Cambridge University Press.

Péchy-Tarr, M., Bottiglieri, M., Mathys, S., Lejbolle, K. B., Schnider-Keel, U., Maurhofer, M., and Keel, C. 2005. RpoN (σ54) controls production of antifungal compounds and biocontrol activity in Pseudomonas fluorescens CHA0. Mol. Plant-Microbe Interact.18 (3):260-272.

Péchy-Tarr, M., Bruck, D. J., Maurhofer, M., Fischer, E., Vogne, C., Henkels, M. D., Donahuer, M., Grunder, J., Loper, J. E., and Keel, C. 2008. Molecular analysis of a novel gene cluster encoding an insect toxin in plant-associated strains of Pseudomonas fluorescens. Environ. Microbiol. 10:2368-2386.

Rochat, L., Maurhofer, M., and Keel, C. 2009. Combined use of fluorescent reporters and flow cytometry for simultaneous monitoring of bacterial growth and gene expression on plant roots. Chapter 7 in: Handbook of Hydrocarbon Microbiology, K. M. Timmies (ed)

Skrobek, A., Boss, D., Butt, T. M., Défago, G., and Maurhofer, M. 2006. Evaluation of different biological test systems to assess the toxicity of metabolites from fungal biocontrol agents. Toxicology letters 161 (1):43-52

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