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Christoph Keel: complete list of publications


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2014
Jousset A., Schuldes J., Keel C., Maurhofer M., Daniel R., Scheu S., Thuermer A., 2014. Full-Genome Sequence of the Plant Growth-Promoting Bacterium Pseudomonas protegens CHA0. Genome Announcements 2(2). [DOI] [Pubmed]
Kupferschmied P., Péchy-Tarr M., Imperiali N., Maurhofer M., Keel C., 2014. Domain shuffling in a sensor protein contributed to the evolution of insect pathogenicity in plant-beneficial Pseudomonas protegens. Plos Pathogens 10(2) pp. e1003964. [DOI] [Web of Science] [Pubmed]
Kupferschmied Peter, Péchy-Tarr Maria, Imperiali Nicola, Maurhofer Monika, Keel Christoph, 2014. Domain Shuffling in a Sensor Protein Contributed to the Evolution of Insect Pathogenicity in Plant-Beneficial Pseudomonas protegens. PLoS Pathogens 10(2) pp. e1003964. [DOI] [Pubmed]
2013
Kupferschmied P., Maurhofer M., Keel C., 2013. Promise for plant pest control: root-associated pseudomonads with insecticidal activities. Frontiers in Plant Science 4 p. 287. [DOI] [Web of Science] [Pubmed]
Meyer J.B., Song-Wilson Y., Foetzki A., Luginbühl C., Winzeler M., Kneubühler Y., Matasci C., Mascher-Frutschi F., Kalinina O., Boller T. et al., 2013. Does wheat genetically modified for disease resistance affect root-colonizing pseudomonads and arbuscular mycorrhizal fungi? PLoS One 8(1) pp. e53825. [DOI] [Web of Science] [Pubmed]
Péchy-Tarr M., Borel N., Kupferschmied P., Turner V., Binggeli O., Radovanovic D., Maurhofer M., Keel C., 2013. Control and host-dependent activation of insect toxin expression in a root-associated biocontrol pseudomonad. Environmental Microbiology 15(3) pp. 736-750. [DOI] [Web of Science] [Pubmed]
Ruffner B., Péchy-Tarr M., Ryffel F., Hoegger P., Obrist C., Rindlisbacher A., Keel C., Maurhofer M., 2013. Oral insecticidal activity of plant-associated pseudomonads. Environmental Microbiology 15(3) pp. 751-763. [DOI] [Web of Science] [Pubmed]
2012
Troxler J., Svercel M., Natsch A., Zala M., Keel C., Moënne-Loccoz Y., Défago G., 2012. Persistence of a biocontrol Pseudomonas inoculant as high populations of culturable and non-culturable cells in 200-cm-deep soil profiles. Soil Biology and Biochemistry 44(1) pp. 122-129. [DOI] [Web of Science]
2011
de Werra P., Huser A., Tabacchi R., Keel C., Maurhofer M., 2011. Plant- and microbe-derived compounds affect the expression of genes encoding antifungal compounds in a pseudomonad with biocontrol activity. Applied and Environmental Microbiology 77(8) pp. 2807-2812. [DOI] [Web of Science] [Pubmed]
Foetzki A., Winzeler M., Boller T., Felber F., Gruissem G., Keel C., Keller B., Mascher F., Maurhofer M., Nentwig W. et al., 2011. Essais en plein champ avec du blé génétiquement modifié résistant à l'oïdium. Recherche Agronomique Suisse 2(10) pp. 446-453. [url editor site] [Web of Science]
Foetzki A., Winzeler M., Boller T., Felber F., Gruissem G., Keel C., Keller B., Mascher F., Maurhofer M., Nentwig W. et al., 2011. Freilandversuche mit gentechnisch verändertem Weizen mit Mehltauresistenz. Agrarforschung Schweiz 2(10) pp. 446-453. [url editor site] [Web of Science]
Jousset A., Rochat L., Lanoue A., Bonkowski M., Keel C., Scheu S., 2011. Plants respond to pathogen infection by enhancing the antifungal gene expression of root-associated bacteria. Molecular Plant-Microbe Interactions 24(3) pp. 352-358. [DOI] [Web of Science] [Pubmed]
Maurhofer M., Ruffner B., Péchy-Tarr M., Rindlisbacher A., Obrist C., Hoegger P., Keel C., 2011. Oral insecticidal activity of root colonizing Pseudomonas fluorescens CHA0: a biocontrol agent with potential to control plant pests and diseases. pp. 67-70 in Ehlers R.U., Crickmore N., Enkerli J., Glazer I., Kirchmair M., Lopez-Ferber M., Neuhauser S., Strasser H., Tkaczuk C., Traugott M. (eds.) Biological Control in IPM Systems. IOBC wprs bulletin 66. INRA / Unité de pathologie végétale, Montfavet. [url editor site]
Meyer J.B., Frapolli M., Keel C., Maurhofer M., 2011. Pyrroloquinoline quinone biosynthesis gene pqqC, a novel molecular marker for studying the phylogeny and diversity of phosphate-solubilizing pseudomonads. Applied and Environmental Microbiology 77(20) pp. 7345-7354. [DOI] [Web of Science] [Pubmed]
Ruffner B, Péchy-Tarr M, Ryffel F, Keel C, Maurhofer M, 2011. Phylogenetic position of Fit insect toxin producing pseudomonads. pp. 71-74 in Ehlers R.U., Crickmore N., Enkerli J., Glazer I., Kirchmair M., Lopez-Ferber M., Neuhauser S., Strasser H., Tkaczuk C., Traugott M. (eds.) Biological Control in IPM Systems. IOBC wprs bulletin 66. INRA / Unité de pathologie végétale, Montfavet. [url editor site]
Subramoni S., Gonzalez J.F., Johnson A., Péchy-Tarr M., Rochat L., Paulsen I., Loper J.E., Keel C., Venturi V., 2011. Bacterial subfamily of LuxR regulators that respond to plant compounds. Applied and Environmental Microbiology 77(13) pp. 4579-4588. [DOI] [Web of Science] [Pubmed]
2010
Jousset A., Rochat L., Scheu S., Bonkowski M., Keel C., 2010. Predator-prey chemical warfare determines the expression of biocontrol genes by rhizosphere-associated Pseudomonas fluorescens. Applied and Environmental Microbiology 76(15) pp. 5263-5268. [DOI] [Web of Science] [Pubmed]
Meyer J.B., Lutz M.P., Frapolli M., Péchy-Tarr M., Rochat L., Keel C., Défago G., Maurhofer M., 2010. Interplay between wheat cultivars, biocontrol pseudomonads, and soil. Applied and Environmental Microbiology 76(18) pp. 6196-6204. [DOI] [Web of Science] [Pubmed]
Rochat L., Péchy-Tarr M, Maurhofer M., Keel C., 2010. Combined use of fluorescent reporters and flow cytometry for simultaneous monitoring of bacterial growth and gene expression on plant roots. pp. 3461-3470 in Timmis K. N. (eds.) Handbook of hydrocarbon and lipid microbiology. Springer Reference 5(1). Springer, Berlin. [DOI]
Rochat L., Péchy-Tarr M., Baehler E., Maurhofer M., Keel C., 2010. Combination of fluorescent reporters for simultaneous monitoring of root colonization and antifungal gene expression by a biocontrol pseudomonad on cereals with flow cytometry. Molecular Plant-Microbe Interactions 23(7) pp. 949-961. [DOI] [Web of Science] [Pubmed]
Scheublin T.R., Sanders I.R., Keel C., van der Meer J.R., 2010. Characterisation of microbial communities colonising the hyphal surfaces of arbuscular mycorrhizal fungi. ISME Journal 4(6) pp. 752-763. [DOI] [Web of Science] [Pubmed]
Vallet-Gely I., Novikov A., Augusto L., Liehl P., Bolbach G., Péchy-Tarr M., Cosson P., Keel C., Caroff M., Lemaitre B., 2010. Association of hemolytic activity of Pseudomonas entomophila, a versatile soil bacterium, with cyclic lipopeptide production. Applied and environmental microbiology 76(3) pp. 910-921. [DOI] [Web of Science] [Pubmed]
2009
Yigal Elad Y., Maurhofer M., Keel C., Gessler C., Duffy B. (eds.) 2009. Molecular Tools for Understanding and Improving Biocontrol. IOBC/WPRS Bulletin 43. 390 p., IOBC/WPRS. [url editor site]
Bjørnlund L., Rønn R., Péchy-Tarr M., Maurhofer M., Keel C., Nybroe O., 2009. Functional GacS in Pseudomonas DSS73 prevents digestion by Caenorhabditis elegans and protects the nematode from killer flagellates. The ISME journal 3(7) pp. 770-779. [DOI] [Web of Science] [Pubmed]
de Werra P., Péchy-Tarr M., Keel C., Maurhofer M., 2009. Role of gluconic acid production in the regulation of biocontrol traits of Pseudomonas fluorescens CHA0. Applied and Environmental Microbiology 75(12) pp. 4162-4174. [DOI] [Web of Science] [Pubmed]
de Werra P., Péchy-Tarr M., Rochat L., Keel C., Maurhofer M., 2009. Role of gluconic acid production in phosphate solubilisation, biocontrol ability and rhizosphere competence of Pseudomonas fluorescens CHA0. p. 163 in Elad Y., Maurhofer M., Keel C., Gessler C., Duffy B. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS. [url editor site]
Jousset A., Rochat L., Péchy-Tarr M., Keel C., Scheu S., Bonkowski M., 2009. Predators promote defence of rhizosphere bacterial populations by selective feeding on non-toxic cheaters. The ISME Journal 3(6) pp. 666-674. [DOI] [Web of Science] [Pubmed]
Keel C., Maurhofer M., 2009. Insecticidal activity in root-associated, plant-beneficial pseudomonads. p. 181 in Ehlers R.U. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS. [url editor site]
Meyer J., de Werra P., Frapolli M., Péchy-Tarr M., Rochat L., Keel C., Maurhofer M., 2009. Molecular tools to analyze the influence of environmental factors on the genetic diversity and the plant-beneficial activity of root-colonizing pseudomonads. p. 336 in Elad Y, Maurhofer M., Keel C., Gessler C., Duffy B. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS. [url editor site]
Meyer J., Keel C., Maurhofer M., 2009. Use of DGGE analysis to study the impact of genetically modified wheat on the genetic diversity of root-colonizing pseudomonads associated with soil fertility. p. 370 in Elad Y., Maurhofer M., Keel C., Gessler C., Duffy B. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS. [url editor site]
Péchy-Tarr M., Binggeli O., Maurhofer M., Keel C., 2009. Regulation of the expression of Fit insect toxin locus genes in the root-associated biocontrol pseudomonad CHA0. IOBC/WPRS Bulletin 45 pp. 243-247. [url editor site]
Péchy-Tarr M., Loper J. E., Maurhofer M., Keel C., 2009. Insecticidal activity in root-associated pseudomonads. p. 166 in Elad Y. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS. [url editor site]
Rochat L., Péchy-Tarr M., de Werra P., Maurhofer M., Keel C., 2009. Molecular characterization of IAA-responsive mutants of plant-beneficial Pseudomonas fluorescens CHA0. p. 67 in Elad Y (eds.) IOBC/WPRS. [url editor site]
Ruffner B., Péchy-Tarr M., Keel C., Maurhofer M., 2009. Occurrence and molecular diversity of the Fit insect toxin locus in plant-beneficial pseudomonads. IOBC/WPRS Bulletin 45 pp. 251-254. [url editor site]
Sharifi-Tehrani A., Kellenberger S., Farzaneh M., Pechy-Tarr M., Keel C., Mascher F., 2009. Genotype-level interactions determine the degree of reduction of leaf rust on wheat by seed application of beneficial Pseudomonas spp. IOBC/WPRS Bulletin 43 pp. 321-325. [url editor site]
Takeuchi K., Kiefer P., Reimmann C., Keel C., Dubuis C., Rolli J., Vorholt J.A., Haas D., 2009. Small RNA-dependent expression of secondary metabolism is controlled by Krebs cycle function in Pseudomonas fluorescens. The Journal of biological chemistry 284(50) pp. 34976-34985. [DOI] [Web of Science] [Pubmed]
2008
de Werra P., Baehler E., Huser A., Keel C., Maurhofer M., 2008. Detection of plant-modulated alterations in antifungal gene expression in Pseudomonas fluorescens CHA0 on roots by flow cytometry. Applied and Environmental Microbiology 74(5) pp. 1339-1349. [DOI] [Web of Science] [Pubmed]
Grunder J., Fischer E., Péchy-Tarr M., Maurhofer M., Keel C., 2008. Insecticidal activity found in plant-beneficial Pseudomonas and in Photorhabdus/Xenorhabdus. p. 106 in Ehlers R.U., Enkerli J., Glazer I., López-Ferber M., Tkaczuk C. (eds.) IOBC/WPRS Bulletins Working Group "Insect Pathogens and Insect Parasitic Nematodes". IOBC/WPRS.
Loper J. E., Bruck D., Péchy-Tarr M., Maurhofer M., Keel C., Gross H., 2008. Genomic analysis of secondary metabolite production by Pseudomonas fluorescens Pf-5. pp. 1-6 in Lorito M., Woo S., Scala S. (eds.) Biology of Molecular Plant-Microbe Interactions. APS Press.
Loper J.E., Paulsen I., Bruck D., Péchy-Tarr M., Maurhofer M., Keel C., Gross H., 2008. Genomics of secondary metabolite production by Pseudomonas fluorescens Pf-5. pp. S94 in 100th Annual Meeting of the American-Phytopathological-Society Minneapolis, MN, JUL 26-30, 2008. Phytopathology 98. American Phytopathological Society, St Paul, MN. [Web of Science]
Pechy-Tarr M., Bruck D. J., Maurhofer M., Fischer E., Vogne C., Henkels M. D., Donahue K. M., Grunder J., Loper J. E., Keel C., 2008. Molecular analysis of a novel gene cluster encoding an insect toxin in plant-associated strains of Pseudomonas fluorescens. Environmental Microbiology 10(9) pp. 2368-2386. [DOI] [Web of Science] [Pubmed]
Péchy-Tarr M., Fischer E., Maurhofer M., Grunder J., Keel C., 2008. Plant-beneficial pseudomonad with insecticidal activity. p. 105 in Ehlers R.U., Enkerli J., Glazer I., López-Ferber M., Tkaczuk C. (eds.) IOBC/WPRS Bulletins Working Group "Insect Pathogens and Insect Parasitic Nematodes". IOBC/WPRS.
2007
Dubuis C., Keel C., Haas D., 2007. Dialogues of root-colonizing biocontrol pseudomonads. European Journal of Plant Pathology 119(3) pp. 311-328. [DOI] [Web of Science]
2006
Baehler E., de Werra P., Wick L.Y., Péchy-Tarr M., Mathys S., Maurhofer M., Keel C., 2006. Two novel MvaT-like global regulators control exoproduct formation and biocontrol activity in root-associated Pseudomonas fluorescens CHA0. Molecular Plant-Microbe Interactions 19(3) pp. 313-329. [DOI] [Web of Science] [Pubmed]
de Werra P., Huser A., Baehler E., Keel C., Maurhofer M., 2006. Using flow cytometry for in situ monitoring of antimicrobial compound production in the biocontrol bacterium Pseudomonas fluorescens CHA0. pp. 117-121 in Raaijmakers J.M., Sikora R.A. (eds.) IOBC/WPRS Bulletin. IOBC/WPRS Bulletin 29(2). [url editor site]
Baehler E., Bottiglieri M., Péchy-Tarr M., Maurhofer M., Keel C., 2005. Use of green fluorescent protein-based reporters to monitor balanced production of antifungal compounds in the biocontrol agent Pseudomonas fluorescens CHA0. Journal of Applied Microbiology 99(1) pp. 24-38. [DOI] [Web of Science] [Pubmed]
Kohlmeier S., Smits T.H., Ford R.M., Keel C., Harms H., Wick L.Y., 2005. Taking the fungal highway: mobilization of pollutant-degrading bacteria by fungi. Environmental Science and Technology 39(12) pp. 4640-4646. [DOI] [Web of Science] [Pubmed]
Péchy-Tarr M., Bottiglieri M., Mathys S., Lejbølle K.B., Schnider-Keel U., Maurhofer M., Keel C., 2005. RpoN (sigma54) controls production of antifungal compounds and biocontrol activity in Pseudomonas fluorescens CHA0. Molecular Plant-Microbe Interactions 18(3) pp. 260-272. [DOI] [Web of Science] [Pubmed]
2004
Duffy B., Keel C., Défago G., 2004. Potential role of pathogen signaling in multitrophic plant-microbe interactions involved in disease protection. Applied and Environmental Microbiology 70(3) pp. 1836-1842. [DOI] [Web of Science] [Pubmed]
Maurhofer M., Baehler E., Notz R., Martinez V., Keel C., 2004. Cross talk between 2,4-diacetylphloroglucinol-producing biocontrol pseudomonads on wheat roots. Applied and Environmental Microbiology 70(4) pp. 1990-1998. [DOI] [Web of Science] [Pubmed]
2003
Smits T.H., Wick L.Y., Harms H., Keel C., 2003. Characterization of the surface hydrophobicity of filamentous fungi. Environmental Microbiology 5(2) pp. 85-91. [DOI] [Web of Science] [Pubmed]
Zuber S., Carruthers F., Keel C., Mattart A., Blumer C., Pessi G., Gigot-Bonnefoy C., Schnider-Keel U., Heeb S., Reimmann C. et al., 2003. GacS sensor domains pertinent to the regulation of exoproduct formation and to the biocontrol potential of Pseudomonas fluorescens CHA0. Molecular Plant-Microbe Interactions 16(7) pp. 634-644. [DOI] [Web of Science] [Pubmed]
2002
Haas D., Keel C., Reimmann C., 2002. Signal transduction in plant-beneficial rhizobacteria with biocontrol properties. Antonie Van Leeuwenhoek 81(1-4) pp. 385-395. [DOI] [Web of Science] [Pubmed]
Johansen J.E., Binnerup S.J., Lejbølle K.B., Mascher F., Sørensen J., Keel C., 2002. Impact of biocontrol strain Pseudomonas fluorescens CHA0 on rhizosphere bacteria isolated from barley (Hordeum vulgare L.) with special reference to Cytophaga-like bacteria. Journal of Applied Microbiology 93(6) pp. 1065-1074. [DOI] [Web of Science] [Pubmed]
Keel C., 2002. Einsatz von Bodenbakterien für den Pflanzenschutz. VBB-Bulletin 6 pp. 16-19.
Keel C., Ucurum Z., Michaux P., Adrian M., Haas D., 2002. Deleterious impact of a virulent bacteriophage on survival and biocontrol activity of Pseudomonas fluorescens strain CHAO in natural soil. Molecular Plant-microbe Interactions 15(6) pp. 567-576. [DOI] [Web of Science] [Pubmed]
Mascher F., Moënne-Loccoz Y., Schnider-Keel U., Keel C., Haas D., Défago G., 2002. Inactivation of the regulatory gene algU or gacA can affect the ability of biocontrol Pseudomonas fluorescens CHA0 to persist as culturable cells in nonsterile soil. Applied and Environmental Microbiology 68(4) pp. 2085-2088. [DOI] [Web of Science] [Pubmed]
Reimmann C., Ginet N., Michel L., Keel C., Michaux P., Krishnapillai V., Zala M., Heurlier K., Triandafillu K., Harms H. et al., 2002. Genetically programmed autoinducer destruction reduces virulence gene expression and swarming motility in Pseudomonas aeruginosa PAO1. Microbiology 148(Pt 4) pp. 923-932. [Web of Science] [Pubmed]
2001
Bull C.T., Duffy B., Voisard C., Défago G., Keel C., Haas D., 2001. Characterization of spontaneous gacS and gacA regulatory mutants of Pseudomonas fluorescens biocontrol strain CHAO. Antonie Van Leeuwenhoek 79(3-4) pp. 327-336. [DOI] [Web of Science] [Pubmed]
Schnider-Keel U., Lejbølle K.B., Baehler E., Haas D., Keel C., 2001. The sigma factor AlgU (AlgT) controls exopolysaccharide production and tolerance towards desiccation and osmotic stress in the biocontrol agent Pseudomonas fluorescens CHA0. Applied and Environmental Microbiology 67(12) pp. 5683-5693. [DOI] [Web of Science] [Pubmed]
2000
Haas D., Blumer C., Keel C., 2000. Biocontrol ability of fluorescent pseudomonads genetically dissected: importance of positive feedback regulation. Current Opinion in Biotechnology 11(3) pp. 290-297. [DOI] [Web of Science] [Pubmed]
Heeb S., Itoh Y., Nishijyo T., Schnider U., Keel C., Wade J., Walsh U., O'Gara F., Haas D., 2000. Small, stable shuttle vectors based on the minimal pVS1 replicon for use in gram-negative, plant-associated bacteria. Molecular Plant-microbe Interactions 13(2) pp. 232-237. [DOI] [Web of Science] [Pubmed]
Keel C., Haas D., 2000. Regulation and autoinduction of antifungal metabolites in Pseudomonas fluorescens. in Proceedings of the 5th International Workshop on Plant Growth-Promoting Rhizobacteria, Villa Carlos Paz, Cordoba, Argentina.
Schnider-Keel U., Seematter A., Maurhofer M., Blumer C., Duffy B., Gigot-Bonnefoy C., Reimmann C., Notz R., Défago G., Haas D. et al., 2000. Autoinduction of 2,4-diacetylphloroglucinol biosynthesis in the biocontrol agent Pseudomonas fluorescens CHA0 and repression by the bacterial metabolites salicylate and pyoluteorin. Journal of Bacteriology 182(5) pp. 1215-1225. [DOI] [Web of Science] [Pubmed]
1999
Zala M., Gyawali C., Duffy B., Keel C., Défago G., 1999. Application of phloroglucinol production as a phenotypic marker for selecting better biocontrol bacteria. pp. S88 in Phytopathology.
1998
Chin-A-Woeng T.F.C., Bloemberg G.V., van der Bij A.J., van der Drift K.M.G.F., Schripsema J., Kroon B., Scheffer R.J., Keel C., Bakker P.A.H.M., Tichy H.-V. et al., 1998. Biocontrol by phenazine-1-carboxamide-producing Pseudomonas chlororaphis PCL1391of tomato root rot caused by Fusarium oxysporum f. sp. radicis-lycopersici. Molecular Plant-Microbe Interactions 11(11) pp. 1069-1077. [DOI] [Web of Science]
Laville J., Blumer C., Von Schroetter C., Gaia V., Défago G., Keel C., Haas D., 1998. Characterization of the hcnABC gene cluster encoding hydrogen cyanide synthase and anaerobic regulation by ANR in the strictly aerobic biocontrol agent Pseudomonas fluorescens CHA0. Journal of Bacteriology 180(12) pp. 3187-3196. [Pubmed]
Troxler J., Zala M., Natsch A., Nievergelt J., Keel C., Défago G., 1998. Transport of a biocontrol Pseudomonas fluorescens through 2.5-m deep outdoor lysimeters and survival in the effluent water. Soil Biology and Biochemistry 30(5) pp. 621-631. [DOI] [Web of Science]
1997
Beyeler M., Michaux P., Keel C., Haas D., 1997. Effect of enhanced production of indole-3-acetic acid by the biological control agent Pseudomonas fluorescens CHA0 on plant growth. pp. 310-312 in Ogoshi A., Kobayashi K., Homma Y., Kodama F., Kondo N., Akino S. (eds.) Plant Growth-Stimulating Rhizobacteria, Present Status and Future Prospects. Nakanishi Printing, Sapporo, Japan.
Défago G., Keel C., Moënne-Loccoz Y., 1997. Fate of released Pseudomonas bacteria in the soil profile: implications for the use of genetically-modified microbial inoculants. pp. 403-418 in Zelikoff J. T., Stolen J. S. (eds.) Ecotoxicology: responses, biomarkers and risk assessment. OECD, Paris.
Haas D., Keel C., 1997. Construction of Pseudomonas strains with improved biocontrol activity. pp. 82-86 in Ogoshi A., Kobayashi K., Homma Y., Kodama F., Kondo N., Akino S. (eds.) Plant growth-promoting Rhizobacteria: present status and future prospects. Japan-OECD, Sapporo.
Keel C., Défago G., 1997. Interactions between beneficial soil bacteria and root pathogens: mechanisms and ecological impact. pp. 27-46 in Gange A. C., Brown V. K. (eds.) Multitrophic interactions in terrestrial systems. Blackwell Science, Oxford.
Natsch A., Keel C., Hebecker N., Laasik E., Défago G., 1997. Influence of biocontrol strain Pseudomonas fluorescens CHA0 and its antibiotic overproducing derivative on the diversity of root colonizing pseudomonads. FEMS Microbiology Ecology 23(4) pp. 341-352. [DOI] [Web of Science]
Schnider U., Keel C., Blumer C., Michaux P., Défago G., Haas D., 1997. Regulation of mucoidy in the biological control agent Pseudomonas fluorescens CHA0 and construction of an exopolysaccharide-overproducing variant. pp. 349-352 in Ogoshi A., Kobayashi K., Homma Y., Kodama F., Kondo N., Akino S. (eds.) Plant growth-promoting Rhizobacteria: present status and future prospects. Japan-OECD, Sapporo.
Troxler J., Zala M., Moenne-Loccoz Y., Keel C., Defago G., 1997. Predominance of Nonculturable Cells of the Biocontrol Strain Pseudomonas fluorescens CHA0 in the Surface Horizon of Large Outdoor Lysimeters. Applied and Environmental Microbiology 63(10) pp. 3776-3782. [Web of Science] [Pubmed]
1996
Défago G., Keel C., Moënne-Loccoz Y., 1996. Fate of introduced biocontrol agent Pseudomonas fluorescens CHA0 in soil: Biosafety considerations. pp. 241-245 in Wenhua T., Cook R. J., Rovira A. (eds.) Advances in biological control of plant diseases. China Agricultural University Press, Beijing, China.
Keel C., 1996. Bakterien als Nützlinge. Bioskop 3: 27.
Keel C., Weller D.M., Natsch A., Défago G., Cook R.J., Thomashow L.S., 1996. Conservation of the 2,4-diacetylphloroglucinol biosynthesis locus among fluorescent Pseudomonas strains from diverse geographic locations. Applied and Environmental Microbiology 62(2) pp. 552-563. [Web of Science] [Pubmed]
Natsch A., Keel C., Troxler J., Zala M., Von Albertini N., Defago G., 1996. Importance of Preferential Flow and Soil Management in Vertical Transport of a Biocontrol Strain of Pseudomonas fluorescens in Structured Field Soil. Applied and Environmental Microbiology 62(1) pp. 33-40. [Web of Science] [Pubmed]
1995
Défago G., Keel C., 1995. Pseudomonads as biocontrol agents of diseases caused by soil-borne pathogens. pp. 137-148 in Hokkanen H. M. T., Lynch J. M. (eds.) Pseudomonads as biocontrol agents of diseases caused by soil-borne pathogens. Plant and microbial biotechnology research series 4. Cambridge University Press, Cambridge.
Görlach J., Raesecke H.R., Rentsch D., Regenass M., Roy P., Zala M., Keel C., Boller T., Amrhein N., Schmid J., 1995. Temporally distinct accumulation of transcripts encoding enzymes of the prechorismate pathway in elicitor-treated, cultured tomato cells. Proceedings of the National Academy of Sciences of the United States of America 92(8) pp. 3166-3170. [DOI] [Web of Science] [Pubmed]
Keel C., Défago G., 1995. Harmlose Bodenbakterien statt Pflanzenschutzmittel. Das Bild des Monats März 1995 aus Wissenschaft und Forschung. Swiss National Foundation for Scientific Research..
Schnider U., Keel C., Blumer C., Troxler J., Défago G., Haas D., 1995. Amplification of the housekeeping sigma factor in Pseudomonas fluorescens CHA0 enhances antibiotic production and improves biocontrol abilities. Journal of Bacteriology 177(18) pp. 5387-5392. [Web of Science] [Pubmed]
Schnider U., Keel C., Voisard C., Défago G., Haas D., 1995. Tn5-directed cloning of pqq genes from Pseudomonas fluorescens CHA0: mutational inactivation of the genes results in overproduction of the antibiotic pyoluteorin. Applied and Environmental Microbiology 61(11) pp. 3856-3864. [Web of Science] [Pubmed]
1994
Défago G., Duffy B., Keel C., 1994. Risk assessment for the release of plant growth-promoting rhizobacteria, disscussion manuscript. p. 254 in Ryder M. H., Stephens P. M., Bowen G. D. (eds.) Improving plant productivity with Rhizosphere bacteria. CSIRO Division of Soils, Adelaide, Australia.
Keel C., Zala M., Troxler J., Natsch A., Pfirter H. P., Défago G., 1994. Application of biocontrol strain Pseudomonas fluorescens CHA0 to standard soil columns and field-scale lysimeters - I. Survival and translocation. pp. 255-257 in Ryder M. H., Stephens P. M., Bowen G. D. (eds.) Improving plant productivity with Rhizosphere bacteria. CSIRO Division of Soils, Adelaide, Australia.
Maurhofer M., Keel C., Haas D., Défago G., 1994. Pyoluteorin production by Pseudomonas fluorescens strain CHA0 is involved in the suppression of Pythium damping-off of cress but not of cucumber. European Journal of Plant Patholology 100(3-4) pp. 221-232. [DOI] [Web of Science]
Maurhofer M., Sacherer P., Keel C., Défago G., 1994. Role of some metabolites produced by Pseudomonas fluorescens strain CHA0 in the suppression of different plant diseases. pp. 117-119 in Ryder M. H., Stephens P. M., Bowen G. D. (eds.) Improving plant productivity with Rhizosphere bacteria. CSIRO Division of Soils, Adelaide, Australia.
Natsch A., Keel C., Pfirter H.A., Haas D., Défago G., 1994. Contribution of the Global Regulator Gene gacA to Persistence and Dissemination of Pseudomonas fluorescens Biocontrol Strain CHA0 Introduced into Soil Microcosms. Applied and Environmental Microbiology 60(7) pp. 2553-2560. [Web of Science] [Pubmed]
Troxler J., Zala M., Keel C., Natsch A., Défago G., 1994. Application of biocontrol strain Pseudomonas fluorescens CHA0 to standard soil columns and field-scale lysimeters - II. Detection and enumeration. pp. 258-260 in Ryder M. H., Stephens P. M., Bowen G. D. (eds.) Improving plant productivity with Rhizosphere bacteria. CSIRO Division of Soils, Adelaide, Australia.
Voisard C., Bull C., Keel C., Laville J., Maurhofer M., Schnider U., Défago G., Haas D., 1994. Biocontrol of root diseases by Pseudomonas fluorescens CHA0: current concepts and experimental approaches. pp. 67-89 in O'Gara F., Dowling D., Boesten B. (eds.) Molecular ecology of rhizosphere microorganisms: biotechnology and the release of GMOs. VCH Publishers, Weinheim. [DOI]
1992
Défago G., Fuchs J., Keel C., Maurhofer M., Oberhänsli Th., Sacherer P., 1992. Krankheitsunterdrückende Böden. ETH Bulletin 242 pp. 25-26.
Keel C., Schnider U., Maurhofer M., Voisard C., Laville J., Burger U., Wirthner P., Haas D., Défago G., 1992. Suppression of root diseases by Pseudomonas fluorescens CHA0: Importance of the bacterial secondary metabolite 2,4-diacetylphloroglucinol. Molecular Plant-Microbe Interactions 5(1) pp. 4-13. [DOI] [Web of Science]
Laville J., Voisard C., Keel C., Maurhofer M., Défago G., Haas D., 1992. Global control in Pseudomonas fluorescens mediating antibiotic synthesis and suppression of black root rot of tobacco. Proceedings of the National Academy of Sciences of the United States of America 89(5) pp. 1562-1566. [DOI] [Web of Science] [Pubmed]
Maurhofer M., Keel C., Schnider U., Voisard C., Haas D., Défago G., 1992. Influence of enhanced antibiotic production in Pseudomonas fluorescens strain CHA0 on its disease suppressive capacity. Phytopathology 82(2) pp. 190-195. [DOI] [Web of Science]
1991
Keel C., Koller B., Défago G. (eds.) 1991. Plant growth promoting rhizobacteria - progress and prospects. Bulletin OILB/SROP 14(8). 418 p., ETHZ.
Défago G., Fuchs J., Kahr G., Keel C., Voisard C., 1991. Characterization and analysis of site-specific antagonism. p. 339 in Beemster A. B. R., Bollen G. J., Gerlagh M., Ruissen M. A., Schippers B., Tempel A. (eds.) Biotic interactions and soil-borne diseases. Developments in agricultural and managed-forest ecology 23. Elsevier, Amsterdam. [DOI]
Défago G., Keel C., Maurhofer M., Sacherer P., Wüthrich B., Gaia V., Laville J., Haas D., 1991. HCN as a signal in plant-microbe interactions. Bulletin OILB/SROP 14(8) pp. 199-200.
Haas D., Keel C., Laville J., Maurhofer M., Oberhänsli T., Schnider U., Voisard C., Wüthrich B., Défago G., 1991. Secondary metabolites of Pseudomonas fluorescens strain CHA0 involved in the suppression of root diseases. pp. 450-456 in Hennecke H., Verma D. P. S. (eds.) Current plant science and biotechnology in agriculture, 10. Advances in Molecular Genetics of Plant-Microbe Interactions 1. Kluwer, Dordrecht.
Keel C., Haas D., Laville J., Maurhofer M., Oberhänsli Th., Schnider U., Voisard C., Défago G., 1991. Suppression of soil-borne pathogens by Pseudomonas fluorescens - a multifactorial mechanism. Bulletin OILB/SROP 14(8) pp. 195-196.
Keel C., Maurhofer M., Oberhänsli Th., Voisard C., Haas D., Défago G., 1991. Role of 2,4-diacetylphloroglucinol in the suppression of take-all of wheat by a strain of Pseudomonas fluorescens. pp. 335-339 in Beemster A. B. R., Bollen G. J., Gerlagh M., Ruissen M. A., Schippers B., Tempel A. (eds.) Biotic interactions and soil-borne diseases. Developments in agricultural and managed-forest ecology 23. Elsevier, Amsterdam. [DOI]
Maurhofer M., Keel C., Schnider U., Voisard C., Haas D., Défago G., 1991. Does enhanced antibiotic production in Pseudomonas fluorescens strain CHA0 improve its disease suppressive capacity? Bulletin OILB/SROP 14(8) pp. 201-202.
1990
Défago G., Berling C.-H., Burger U., Haas D., Kahr G., Keel C., Voisard C., Wirthner P., Wüthrich B., 1990. Suppression of black root rot of tobacco and other root diseases by strains of Pseudomonas fluorescens: Potential applications and mechanisms. pp. 93-108 in Hornby D., ... [et al.] (eds.) Biological control of soil-borne plant pathogens. CAB International, Wallingford, UK.
Keel C., Voisard C., Haas D., Défago G., 1990. Role of 2,4-diacetylphloroglucinol in disease suppression by a strain of Pseudomonas fluorescens. p. 1024 in Phytopathology. Phytopathology 80(10).
Keel C., Wirthner Ph., Oberhänsli Th., Voisard C., Burger U., Haas D., Défago G., 1990. Pseudomonads as antagonists of plant pathogens in the rhizosphere: role of the antibiotic 2,4-diacetylphloroglucinol in the suppression of black root rot of tobacco. Symbiosis 9(1-3) pp. 327-341. [Web of Science]
Phd thesis
Rochat L., 2011. Study of the regulation of antifungal activity in plant-associated pseudomas fluorescens. 235 p., Université de Lausanne, Faculté de biologie et médecine, Keel C. (dir.).
Baehler E., 2005. Use of fluorescent proteins to monitor the regulation of antifungal activity in root-associated Pseudomonas fluorescens CHA0. 189 p., Université de Lausanne, Faculté de biologie et médecine, Keel C. (dir.).
 
 
 
 
 
 
 
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