{"id":19,"date":"2014-11-14T14:44:32","date_gmt":"2014-11-14T13:44:32","guid":{"rendered":"http:\/\/wp.unil.ch\/keel-lab\/?page_id=19"},"modified":"2025-10-17T08:39:09","modified_gmt":"2025-10-17T06:39:09","slug":"publications","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/keel-lab\/original-papers\/publications\/","title":{"rendered":"Original research"},"content":{"rendered":"

Tsai HH, Tang Y, Jiang L, Xu X, D\u00e9nervaud Tendon V, Pang J, Jia Y, Wippel K, Vacheron J, Keel C, Andersen TG, Geldner N, Zhou F. 2025 . Localized glutamine leakage drives the spatial structure of root microbial colonization. Science<\/a><\/span> 390(6768):eadu4235. DOI: 10.1126\/science.adu4235<\/p>\n

Vacheron J, Heiman CM, Crea M, Erbetta A, Keel C. 2025. Exploring novel inducers of phage tail-like particle expression using a fluorescent reporter bacterium. bioRxiv<\/a><\/span> 2025.10.13.681979; DOI: 10.1101\/2025.10.13.681979<\/p>\n

Vacheron J, Heiman CM, Garrido-Sanz D, Caroff M, Darabi M, Keel C. 2025. Single nucleotide switches confer bacteriophage resistance to Pseudomonas protegens<\/i>. microLife<\/a><\/span>, uqaf028. DOI: 10.1093\/femsml\/uqaf028<\/p>\n

Heiman CM, Antar H, Fournes F, Keel C, Vacheron J. 2025. The repressor PrtR1 and the global H-NS-like regulators MvaT and MvaV enable the fine-tuning of R-tailocin expression in Pseudomonas protegens<\/em>. BMC Microbiology<\/span><\/a> 25:286. <\/span>DOI: 10.1186\/s12866-025-03983-9<\/p>\n

Garrido-Sanz D, Keel C. 2025. Seed-borne bacteria drive wheat rhizosphere microbiome assembly via niche partitioning and facilitation. <\/a>Nature Microbiology.<\/span><\/a><\/span> 10:1130-1144. hDOI: 10.1038\/s41564-025-01973-1.<\/span><\/p>\n

Vacheron J, Heiman CM, Keel C. 2024. Single nucleotide switches confer bacteriophage resistance to Pseudomonas protegen<\/em>s. bioRxiv<\/a><\/span>. DOI 10.1101\/2024.11.12.622978<\/p>\n

Batsch M, Guex I, Todorov H, Heiman CM, Vacheron J, Vorholt JA, Keel C, van der Meer JR. 2024. Fragmented micro-growth habitats present opportunities for alternative competitive outcomes. Nature Communications<\/span><\/a> 15:7591. DOI: 10.1038\/s41467-024-51944-z<\/span><\/p>\n

Poli N, Keel CJ, Garrido-Sanz D. 2024. Expanding the Pseudomonas<\/i> diversity of the wheat rhizosphere: four novel species antagonizing fungal phytopathogens and with plant-beneficial properties. Frontiers in Microbiology<\/a><\/span> 15:1440341. DOI: 10.3389\/fmicb.2024.1440341<\/p>\n

Harmsen N, Vesga P, Glauser G, Kl\u00f6tzli F, Heiman CM, Altenried A, Vacheron J, Muller D, Mo\u00ebnne-Loccoz Y, Steinger T, Keel C, Garrido-Sanz D. 2024. Natural soil suppressiveness against soilborne phytopathogens extends to the control of insect pest. Microbiome<\/span><\/a> 12:127. DOI: 10.1186\/s40168-024-01841-w<\/p>\n

Zwyssig M, Spescha A, Patt T, Belosevic A, Machado RAR, Regaiolo A, Keel C, Maurhofer M. 2024. Entomopathogenic pseudomonads can share an insect host with entomopathogenic nematodes and their mutualistic bacteria. The ISME Journal<\/span><\/a>\u00a018:wrae028. DOI: 10.1093\/ismejo\/wrae028<\/p>\n

Vacheron J, Heiman CM, Garneau JR, Kupferschmied P, de Jonge R, Garrido-Sanz D, Keel C. 2023. Molecular and evolutionary basis of O-antigenic polysaccharide driven phage sensitivity in environmental pseudomonads. Microbiology Spectrum<\/a> 11:\u00a0<\/span>e02049-23<\/span>. DOI: 10.1128\/spectrum.02049-23.<\/span><\/span><\/p>\n

Garrido-Sanz D, \u010cau\u0161evi\u0107 S, Vacheron J, Heiman CM, Sentchilo, van der Meer JR, Keel C. 2023. Changes in structure and assembly of a species-rich soil natural community with contrasting nutrient availability upon establishment of a plant-beneficial Pseudomonas<\/em> in the wheat rhizosphere. Microbiome<\/span><\/a> 11:214. DOI: 10.1186\/s40168-023-01660-5.<\/p>\n

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Anand A, Falquet L, Abou-Mansour E, L’Haridon F, Keel C, Weisskopf L. 2023. Biological hydrogen cyanide emission globally impacts the physiology of both HCN-emitting and HCN-perceiving Pseudomonas<\/i>. mBio<\/span><\/a> 14:e0085723. doi: 10.1128\/mbio.00857-23.<\/p>\n

S\u00e1nchez-Gil JJ, Poppeliers SWM, Vacheron J, Zhang H, Odijk B, Keel C, de Jonge R. 2023. The conserved iol<\/em> gene cluster in Pseudomonas<\/em> is involved in rhizosphere competence. Current Biology<\/span><\/a> 33:3097-3110.e6. DOI: 10.1016\/j.cub.2023.05.057.<\/p>\n

Garrido-Sanz D, Vesga P, Heiman CM, Altenried A, Keel C, Vacheron J. 2023. Relation of pest insect-killing and soilborne pathogen-inhibition abilities to species diversification in environmental Pseudomonas protegens<\/em>. The ISME Journal<\/span><\/a> 17:1369-1381. DOI: 10.1038\/s41396-023-01451-8.<\/p>\n

Heiman CH, Maurhofer M, Calderon S, Dupasquier M, Marquis J, Keel C, Vacheron J. 2022. Pivotal role of O-antigenic polysaccharide display in the sensitivity against phage tail-like particles in environmental Pseudomonas<\/em> kin competition. The ISME Journal<\/a> 16:1683\u20131693.<\/span><\/span>\u00a0DOI: <\/span>10.1038\/s41396-022-01217-8.<\/p>\n<\/div>\n

Vesga P, Augustiny E, Keel C, Maurhofer M, Vacheron J. 2021. Phylogenetically closely related pseudomonads isolated from arthropods exhibit differential insect-killing abilities and genetic variations in insecticidal factors. Environmental Microbiology<\/a> 23:5378\u20135394<\/span><\/span>. DOI: 10.1111\/1462-2920.15623.<\/p>\n

Emonet A,\u00a0Zhou\u00a0F, <\/span>Vacheron\u00a0J, <\/span>Heiman\u00a0CM, <\/span>D\u00e9nervaud Tendon\u00a0V, <\/span>Ma K-W,\u00a0Schulze-Lefert P, Keel C,\u00a0Geldner\u00a0N. 2021. <\/span>Spatially\u00a0r<\/span>estricted\u00a0i<\/span>mmune\u00a0r<\/span>esponses\u00a0a<\/span>re\u00a0r<\/span>equired for maintaining\u00a0r<\/span>oot\u00a0m<\/span>eristematic\u00a0a<\/span>ctivity upon\u00a0d<\/span>etection of\u00a0b<\/span>acteria. <\/span>Current Biology<\/a> 5:1012-1028.e7.<\/span><\/span>\u00a0DOI<\/span>: 10.1016\/j.cub.2020.12.048.<\/span><\/p>\n

Vacheron J, Heiman CM, Keel C. 2021. Live cell dynamics of production, explosive release and killing activity of phage tail-like weapons for Pseudomonas<\/i> kin exclusion. Communications Biology<\/a><\/span> 4:87. DOI: 10.1038\/s42003-020-01581-1.<\/p>\n

Vesga P, Flury P, Vacheron, J, Keel C, Croll D, Maurhofer M. 2020.<\/i> Transcriptome plasticity underlying plant root colonization and insect invasion by Pseudomonas protegens<\/i>. The ISME Journal<\/a>\u00a014: 2766-2782.\u00a0<\/span><\/span>DOI:\u00a0<\/span>10.1038\/s41396-020-0729-9.<\/p>\n

Heiman CM, Wiese J, Kupferschmied P, Maurhofer M, Keel C, Vacheron J. 2020. Draft genome sequence of Pseudomonas<\/em> sp. strain LD120, isolated from the marine alga Saccharina latissima<\/em>. Microbiology Resource Announcements<\/a><\/span> 9:e01305-19. DOI: 10.1128\/MRA.01305-19.<\/p>\n

Smits THM, Rezzonico F, Frasson D, Vesga P, Vacheron J, Blom J, Pothier JF, Keel C, Maurhofer M, Sievers M. 2019. Updated genome sequence and annotation for the full genome of Pseudomonas protegens<\/em> CHA0. Microbiology Resource Announcements<\/a><\/span> 8:e01002-19. DOI: 10.1128\/MRA.01002-19.<\/p>\n

Jaffuel G, Imperiali N, Shelby K, Campos-Herrera R, Geisert R, Maurhofer M, Loper J, Keel C, Turlings TCJ, Hibbard BE. 2019. Protecting maize from rootworm damage with combined application of arbuscular mycorrhizal fungi, Pseudomonas<\/em> bacteria and entomopathogenic nematodes. Scientific Reports<\/span><\/a> 9:3127. DOI: 10.1038\/s41598-019-39753-7.<\/p>\n

Vacheron J, P\u00e9chy-Tarr M, Brochet S, Heiman CM, Stojiljkovic M, Maurhofer M, Keel C. 2019. T6SS contributes to gut microbiome invasion and killing of an herbivorous pest insect by plant-beneficial Pseudomonas protegens<\/em>. The ISME Journal<\/span><\/a>. DOI: 10.1038\/s41396-019-0353-8. F1000Prime recommended.<\/p>\n

Flury P, Vesga P, Dominguez-Ferreras A, Tinguely C, Ullrich CI, Kleespies RG, Keel C, Maurhofer M. 2019. Persistence of root-colonizing Pseudomonas protegens<\/em> in herbivorous insects throughout different developmental stages and dispersal to new host plants. The ISME Journal<\/a> <\/span>13:860\u2013872. DOI: 10.1038\/s41396-018-0317-4. F1000Prime recommended.<\/p>\n

Vacheron J, Kupferschmied P, Resch G, Keel C. 2018. Genome sequence of the Pseudomonas protegens<\/em> phage ?GP100. Genome Announcements<\/span><\/a> 6: e00261-18<\/span>. DOI: 10.1128\/genomeA.00261-18.<\/span><\/p>\n

Dennert F, Imperiali N, Staub C, Schneider J, Laessle T, Wittwer R, van der Heijden MGA,\u00a0 Smits THM, Schlaeppi K, Keel C, Maurhofer M. 2018. Conservation tillage and organic farming induce minor variations in Pseudomonas<\/em> abundance, their antimicrobial function and soil disease resistance. FEMS Microbiology Ecology<\/a> 94<\/span><\/span>, DOI: 10.1093\/femsec\/fiy075 [Epub ahead of print].<\/p>\n

Chiriboga X, Guo H, Campos-Herrera R, R\u00f6der G, Imperiali N, Keel C, Maurhofer M, Turlings T. 2018. Root-colonizing bacteria enhance the levels of (E)-?-caryophyllene produced by maize roots in response to rootworm feeding. Oecologia<\/a> 187:459-468. DOI: 10.1007\/s00442-017-4055-5<\/span><\/span>.<\/span><\/p>\n

Imperiali N, Chiriboga X, Schlaeppi K, Fesselet M, Villacr\u00e9s D, Jaffuel G, Bender SF, Dennert F, Blanco-P\u00e9rez R, van der Heijden M, Maurhofer M, Mascher F, Turlings T, Keel C , Campos-Herrera R. 2017. Combined field inoculations of Pseudomonas<\/em> bacteria, arbuscular mycorrhizal fungi and entomopathogenic nematodes and their effects on wheat performance. Frontiers in Plant Science – Plant Microbe Interactions<\/span><\/a>\u00a08:1809. DOI: 10.3389\/fpls.2017.01809.<\/span><\/span>
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Imperiali N, Dennert F, Schneider J, Laessle T, Velatta C, Fesselet M, Wyler M, Mascher F, Mavrodi O, Mavrodi D, Maurhofer M and Keel C. 2017. Relationships between root pathogen resistance, abundance and expression of Pseudomonas<\/em> antimicrobial genes, and soil properties in representative Swiss agricultural soils. Frontiers in Plant Science – Plant Microbe Interactions<\/a><\/span> 8:427. DOI: 10.3389\/fpls.2017.00427.<\/p>\n

Flury P, Vesga P, P\u00e9chy-Tarr M, Aellen N, Dennert F, Hofer N, Kupferschmied KP, Kupferschmied P, Metla Z, Ma Z, Siegfried S, de Weert S, Bloemberg G, H\u00f6fte M, Keel C, Maurhofer M. 2017. Antimicrobial and insecticidal: cyclic lipopeptides and hydrogen cyanide produced by plant-beneficial Pseudomonas<\/em> strains CHA0, CMR12a and PCL1391 contribute to insect killing. Frontiers in Microbiology \u2013 Plant Microbe Interactions<\/a><\/span> 8:100. DOI: 10.3389\/fmicb.2017.00100<\/span>.<\/p>\n

Kupferschmied P, Chai T, Flury P, Blom J, Smits THM, Maurhofer M, Keel C. 2016.\u00a0Specific surface glycan decorations enable antimicrobial peptide resistance in plant-beneficial pseudomonads with insect-pathogenic properties. Environmental Microbiology<\/span><\/a> 18: 4265\u20134281<\/span>.<\/p>\n

Pagnussat LA, Salcedo F, Maroniche G, Keel C, Valverde C, Creus CM. 2016. Interspecific cooperation: enhanced growth, attachment and strain-specific distribution in biofilms through Azospirillum brasilense<\/em>–Pseudomonas protegens<\/em> co-cultivation. FEMS Microbiology Letters<\/span><\/a> 363: fnw238.<\/p>\n

Bensidhoum L, Elhafid N, Tabli N, Kupferschmied P, Weiss A, Rothballer M, Schmid M, Keel C, Hartmann A. 2016. Heavy metal tolerant Pseudomonas protegens<\/em> isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities. European Journal of Soil Biology<\/a><\/span> 75:38-46.<\/p>\n

Flury P, Aellen N, Ruffner B, P\u00e9chy-Tarr M, Fataar S, Metla Z, Dominguez-Ferreras A, Bloemberg G, Frey J, Goesmann A, Raaijmakers JM, Duffy B, H\u00f6fte M, Blom J, Smits THM, Keel C, Maurhofer M. 2016. Insect pathogenicity in plant-beneficial pseudomonads: phylogenetic distribution and comparative genomics. The ISME Journal<\/a><\/span> 10:2527\u20132542.<\/p>\n

Ruffner B, P\u00e9chy-Tarr M, H\u00f6fte M, Bloemberg G, Grunder J, Keel C, Maurhofer M. 2015. Evolutionary patchwork of an insecticidal toxin shared between plant-associated pseudomonads and the insect pathogens Photorhabdus<\/em> and Xenorhabdus<\/em>. BMC Genomics<\/a><\/span> 16:609. doi: 10.1186\/s12864-015-1763-2.<\/p>\n

Kupferschmied P, P\u00e9chy-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<\/em>. PLoS Pathogens<\/a><\/span> 10:e1003964. doi: 10.1371\/journal.ppat.1003964.<\/span><\/p>\n

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<\/em> CHA0. Genome Announcements<\/a><\/span> 2:e00322-14. doi: 10.1128\/genomeA.00322-14.<\/span><\/p>\n

P\u00e9chy-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<\/a><\/span> 15:736-50.<\/span><\/p>\n

Ruffner B, P\u00e9chy-Tarr M, Ryffel F, Hoegger P, Obrist C, Rindlisbacher A, Keel C, Maurhofer M. 2013. Oral insecticidal activity of plant-associated pseudomonads. Environmental Microbiology<\/a><\/span> 15:751-63.<\/span><\/p>\n

Meyer JB, Song-Wilson Y, Foetzki A, Luginb\u00fchl C, Winzeler M, Kneub\u00fchler Y, Matasci C, Mascher-Frutschi F, Kalinina O, Boller T, Keel C, Maurhofer M. 2013. Does wheat genetically modified for disease resistance affect root-colonizing pseudomonads and arbuscular mycorrhizal fungi? PLoS One<\/a><\/span> 8:e53825. doi: 10.1371\/journal.pone.0053825.<\/span><\/p>\n

Troxler J, Svercel M, Natsch A, Zala M, Keel C, Mo\u00ebnne-Loccoz Y, D\u00e9fago G. 2012. Persistence of a biocontrol Pseudomonas<\/em> inoculant as high populations of culturable and non-culturable cells in 200-cm-deep soil profiles. Soil Biology and Biochemistry<\/a><\/span> 44:122-9.<\/span><\/p>\n

Meyer JB, Frapolli M, Keel C, Maurhofer M. 2011. Pyrroloquinoline quinone biosynthesis gene pqqC<\/em>, a novel molecular marker for studying the phylogeny and diversity of phosphate-solubilizing pseudomonads. Applied and Environmental Microbiology<\/a><\/span> 77:7345-54.<\/span><\/p>\n

Foetzki A, Winzeler M, Boller T, Felber F, Gruissem G, Keel C, Keller B, Mascher F, Maurhofer M, Nentwig W, Romeis J, Sautter C, Schmid B, Bigler F. 2011. Freilandversuche mit gentechnisch ver\u00e4ndertem Weizen mit Mehltauresistenz. Agrarforschorschung Schweiz<\/a><\/span> 2:446-53.<\/span><\/p>\n

Subramoni S, Gonzalez JF, Johnson A, P\u00e9chy-Tarr M, Rochat L, Paulsen I, Loper JE, Keel C, Venturi V. 2011. Bacterial subfamily of LuxR regulators that respond to plant compounds. Applied and Environmental Microbiology<\/span><\/a> 77:4579-88.<\/span><\/p>\n

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<\/a><\/span> 77:2807-12.<\/span><\/p>\n

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<\/a><\/span> 24:352-8.<\/span><\/p>\n

Meyer JB, Lutz MP, Frapolli M, P\u00e9chy-Tarr M, Rochat L, Keel C, D\u00e9fago G, Maurhofer M. 2010. Interplay between wheat cultivars, biocontrol pseudomonads, and soil. Applied and Environmental Microbiology<\/a><\/span> 76:6196-204.<\/span><\/p>\n

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<\/em>.\u00a0Applied and Environmental Microbiology<\/a><\/span> 76:5263-8. F1000Prime recommended.
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Rochat L, P\u00e9chy-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<\/a><\/span> 23:949-61. (Article featured on the cover page). F1000Prime recommended.
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Scheublin TR, Sanders IR, Keel C, van der Meer JR. 2010. Characterisation of microbial communities colonising the hyphal surfaces of arbuscular mycorrhizal fungi. ISME Jounal<\/a><\/span> 4:752-63.<\/span><\/p>\n

Vallet-Gely I, Novikov A, Augusto L, Liehl P, Bolbach G, P\u00e9chy-Tarr M, Cosson P, Keel C, Caroff M, Lemaitre B. 2010. Association of hemolytic activity of Pseudomonas entomophila<\/em>, a versatile soil bacterium, with cyclic lipopeptide production. Applied and Environmental Microbiology<\/a><\/span> 76:910-21.<\/span><\/p>\n

Bj\u00f8rnlund L, R\u00f8nn R, P\u00e9chy-Tarr M, Maurhofer M, Keel C, Nybroe O. 2009. Functional GacS in Pseudomonas<\/em> DSS73 prevents digestion by Caenorhabditis elegans<\/em> and protects the nematode from killer flagellates. ISME Journal<\/a><\/span> 3:770-9.<\/span><\/p>\n

de Werra P, P\u00e9chy-Tarr M, Keel C, Maurhofer M. 2009. Role of gluconic acid production in the regulation of biocontrol traits of Pseudomonas fluorescens<\/em> CHA0.\u00a0Applied and Environmental Microbiology<\/a><\/span> 75:4162-74.<\/span><\/p>\n

Jousset A, Rochat L, P\u00e9chy-Tarr M, Keel C, Scheu S, Bonkowski M. 2009. Predators promote defence of rhizosphere bacterial populations by selective feeding on non-toxic cheaters. ISME Journal<\/a><\/span> 3:666-74. (Research highlight in Nature Reviews Microbiology<\/a><\/span> 7, 2009)<\/span><\/p>\n

Takeuchi K, Kiefer P, Reimmann C, Keel C, Dubuis C, Rolli J, Vorholt JA, Haas D. 2009. Small RNA-dependent expression of secondary metabolism is controlled by Krebs cycle function in Pseudomonas fluorescens<\/em>. Journal of Biological Chemistry<\/a><\/span> 284:34976-8.<\/span><\/p>\n

Pechy-Tarr M, Bruck DJ, Maurhofer M, Fischer E, Vogne C, Henkels MD, Donahue KM, Grunder J, Loper JE, Keel C. 2008. Molecular analysis of a novel gene cluster encoding an insect toxin in plant-associated strains of Pseudomonas fluorescens<\/em>. Environmental Microbiology<\/a><\/span> 10:2368-6. (Recommended by Faculty of 1000 Biology, FF6).
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de Werra P, Baehler E, Huser A, Keel C, Maurhofer M. 2008. Detection of plant-modulated alterations in antifungal gene expression in Pseudomonas fluorescens<\/em> CHA0 on roots by flow cytometry. Applied and Environmental Microbiology<\/a><\/span> 74:1339-49. (Recommended by Faculty of 1000 Biology, FF6).
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Rezzonico F, Zala M, Keel C, Duffy B, Mo\u00ebnne-Loccoz Y, D\u00e9fago G. 2007. Is the ability of biocontrol fluorescent pseudomonads to produce the antifungal metabolite 2,4-diacetylphloroglucinol really synonymous with higher plant protection? New Phytologist<\/a><\/span> 173:861-72.<\/span><\/p>\n

Bottiglieri M, Keel C. 2006. Characterization of PhlG, a hydrolase that specifically degrades the antifungal compound 2,4-diacetylphloroglucinol in the biocontrol agent Pseudomonas fluorescens<\/em> CHA0. Applied and Environmental Microbiology<\/a><\/span> 72:418-27.<\/span><\/p>\n

Baehler E, de Werra P, Wick LY, P\u00e9chy-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<\/em> CHA0. Molecular Plant-Microbe Interactions<\/a><\/span> 19:313-29.<\/span><\/p>\n

P\u00e9chy-Tarr M, Bottiglieri M, Mathys S, Lejb\u00f8lle KB, Schnider-Keel U, Maurhofer M, Keel C. 2005. RpoN (sigma54) controls production of antifungal compounds and biocontrol activity in Pseudomonas fluorescens<\/em> CHA0. Molecular Plant-Microbe Interactions<\/a><\/span> 18:260-72. F1000Prime recommended.
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Kohlmeier S, Smits TH, Ford RM, Keel C, Harms H, Wick LY. 2005. Taking the fungal highway: mobilization of pollutant-degrading bacteria by fungi. Environmental Science and Technology<\/a><\/span> 39:4640-6.<\/span><\/p>\n

Baehler E, Bottiglieri M, P\u00e9chy-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<\/em> CHA0. Journal of Applied Microbiology<\/a><\/span> 99:24-38.<\/span><\/p>\n

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<\/a><\/span> 70:1990-8.<\/span><\/p>\n

Duffy B, Keel C, D\u00e9fago G. 2004. Potential role of pathogen signaling in multitrophic plant-microbe interactions involved in disease protection. Applied and Environmental Microbiology<\/a><\/span> 70:1836-42.<\/span><\/p>\n

Zuber S, Carruthers F, Keel C, Mattart A, Blumer C, Pessi G, Gigot-Bonnefoy C, Schnider-Keel U, Heeb S, Reimmann C, Haas D. 2003. GacS sensor domains pertinent to the regulation of exoproduct formation and to the biocontrol potential of Pseudomonas fluorescens<\/em> CHA0. Molecular Plant-Microbe Interactions<\/a><\/span> 16:634-44<\/span><\/p>\n

Smits TH, Wick LY, Harms H, Keel C. 2003. Characterization of the surface hydrophobicity of filamentous fungi. Environmental Microbiology<\/a><\/span> 5:85-91.<\/span><\/p>\n

Valverde C, Heeb S, Keel C, Haas D, 2003. RsmY, a small regulatory RNA, is required in concert with RsmZ for GacA-dependent expression of biocontrol traits in Pseudomonas fluorescens<\/em> CHA0. Molecular Microbiology<\/a><\/span> 50:1361-79.<\/span><\/p>\n

Reimmann C, Ginet N, Michel L, Keel C, Michaux P, Krishnapillai V, Zala M, Heurlier K, Triandafillu K, Harms H, D\u00e9fago G, Haas D. 2002. Genetically programmed autoinducer destruction reduces virulence gene expression and swarming motility in Pseudomonas aeruginosa<\/em> PAO1. Microbiology<\/a><\/span> 148:923-32.<\/span><\/p>\n

Mascher F, Mo\u00ebnne-Loccoz Y, Schnider-Keel U, Keel C, Haas D, D\u00e9fago G. 2002. Inactivation of the regulatory gene algU<\/em> or gacA<\/em> can affect the ability of biocontrol Pseudomonas fluorescens<\/em> CHA0 to persist as culturable cells in nonsterile soil. Applied and Environmental Microbiology<\/a><\/span> 68:2085-8.<\/span><\/p>\n

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<\/em> strain CHAO in natural soil. Molecular Plant-Microbe Interactions<\/a><\/span> 15:567-76.<\/span><\/p>\n

Johansen JE, Binnerup SJ, Lejb\u00f8lle KB, Mascher F, S\u00f8rensen J, Keel C. 2002. Impact of biocontrol strain Pseudomonas fluorescens<\/em> CHA0 on rhizosphere bacteria isolated from barley (Hordeum vulgare<\/em> L.) with special reference to Cytophaga<\/em>-like bacteria. Journal of Applied Microbiology<\/a><\/span> 93:1065-74.<\/span><\/p>\n

Schnider-Keel U, Lejb\u00f8lle KB, 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<\/em> CHA0. Applied and Environmental Microbiology<\/a><\/span> 67:5683-93.<\/span><\/p>\n

Bull CT, Duffy B, Voisard C, D\u00e9fago G, Keel C, Haas D. 2001. Characterization of spontaneous gacS<\/em> and gacA<\/em> regulatory mutants of Pseudomonas fluorescens<\/em> biocontrol strain CHAO. Antonie Van Leeuwenhoek<\/a><\/span> 79:327-36.<\/span><\/p>\n

Schnider-Keel U, Seematter A, Maurhofer M, Blumer C, Duffy B, Gigot-Bonnefoy C, Reimmann C, Notz R, D\u00e9fago G, Haas D, Keel C. 2000. Autoinduction of 2,4-diacetylphloroglucinol biosynthesis in the biocontrol agent Pseudomonas fluorescens<\/em> CHA0 and repression by the bacterial metabolites salicylate and pyoluteorin. Journal of Bacteriology<\/a><\/span> 182:1215-25.<\/span><\/p>\n

Heeb S, Itoh Y, Nishijyo T, Schnider U, Keel C, Wade J, Walsh U, O\u2019Gara 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<\/a><\/span> 13:232-7.<\/span><\/p>\n

Troxler J, Zala M, Natsch A, Nievergelt J, Keel C, D\u00e9fago G. 1998. Transport of a biocontrol Pseudomonas fluorescens<\/em> through 2.5-m deep outdoor lysimeters and survival in the effluent water. Soil Biology and Biochemistry<\/a><\/span> 30:621-31.<\/span><\/p>\n

Laville J, Blumer C, Von Schroetter C, Gaia V, D\u00e9fago G, Keel C, Haas D. 1998. Characterization of the hcnABC<\/em> gene cluster encoding hydrogen cyanide synthase and anaerobic regulation by ANR in the strictly aerobic biocontrol agent Pseudomonas fluorescens<\/em> CHA0. Journal of Bacteriology<\/a><\/span> 180:3187-96.<\/span><\/p>\n

Beyeler M, Keel C, Michaux P, Haas D. 1998. Enhanced production of indole-3-acetic acid by a genetically modified strain of Pseudomonas fluorescens<\/em> CHA0 affects root growth of cucumber but does not improve protection of the plant against Pythium root rot. FEMS Microbiology Ecology<\/a><\/span> 28:225-33.<\/span><\/p>\n

Chin-A-Woeng TFC, Bloemberg GV, van der Bij AJ, van der Drift KMGF, Schripsema J, Kroon B, Scheffer RJ, Keel C, Bakker PAHM, Tichy H-V, de Bruijn FJ, Thomas-Otes JE, Lugtenberg B JJ. 1998. Biocontrol by phenazine-1-carboxamide-producing Pseudomonas chlororaphis<\/em> PCL1391of tomato root rot caused by Fusarium oxysporum<\/em> f. sp. radicis-lycopersici<\/em>. Molecular Plant-Microbe Interactions<\/a><\/span> 11:1069-77.<\/span><\/p>\n

Natsch A, Keel C, Hebecker N, Laasik E, D\u00e9fago G. 1998. Impact of Pseudomonas fluorescens<\/em> strain CHA0 and a derivative with improved biocontrol activity on the culturable resident bacterial community on cucumber roots. FEMS Microbiology Ecology<\/a><\/span> 27:365-80.<\/span><\/p>\n

Troxler J, Zala M, Mo\u00ebnne-Loccoz Y, Keel C, Defago G. 1997. Predominance of nonculturable cells of the biocontrol strain Pseudomonas fluorescens<\/em> CHA0 in the surface horizon of large outdoor lysimeters. Applied and Environmental Microbiology<\/a><\/span> 63:3776-82.<\/span><\/p>\n

Troxler J, Berling C-H, Mo\u00ebnne-Loccoz Y, Keel C, D\u00e9fago G. 1997. Interactions between the biocontrol agent Pseudomonas fluorescens<\/em> CHA0 and Thielaviopsis basicola<\/em> in tobacco roots observed by immunofluorescence microscopy. Plant Pathology<\/a><\/span> 46:62-71.<\/span><\/p>\n

Schmidli-Sacherer P, Keel C, D\u00e9fago G. 1997. The global regulator GacA of Pseudomonas fluorescens<\/em> CHA0 is required for the suppression of root diseases in dicotyledons but not in Gramineae<\/em>. Plant Pathology<\/a><\/span> 46:80-90.<\/span><\/p>\n

Niemann S, Keel C, P\u00fchler A, Selbitschka W. 1997. Biocontrol strain Pseudomonas fluorescens<\/em> CHA0 and its genetically modified derivative with enhanced biocontrol capability exert comparable effects on the structure of a Sinorhizobium meliloti<\/em> population in a gnotobiotic system. Biology and Fertility of Soils<\/a><\/span> 25:240-4.<\/span><\/p>\n

Natsch A, Keel C, Hebecker N, Laasik E, D\u00e9fago G. 1997. Influence of biocontrol strain Pseudomonas fluorescens<\/em> CHA0 and its antibiotic overproducing derivative on the diversity of root colonizing pseudomonads. FEMS Microbiology Ecology<\/a><\/span> 23:341-52.<\/span><\/p>\n

Natsch A, Keel C, Troxler J, Zala M, von Albertini N, D\u00e9fago G. 1996. Importance of preferential flow and soil management in vertical transport of a biocontrol strain of Pseudomonas fluorescens<\/em> instructured field soil. Applied and Environmental Microbiology<\/a><\/span> 62:33-40.<\/span><\/p>\n

Keel C, Weller DM, Natsch A, D\u00e9fago G, Cook RJ, Thomashow LS. 1996. Conservation of the 2,4-diacetylphloroglucinol biosynthesis locus among fluorescent Pseudomonas<\/em> strains from diverse geographic locations. Applied and Environmental Microbiology<\/a><\/span> 62:552-63.<\/span><\/p>\n

Schnider U, Keel C, Voisard C, D\u00e9fago G, Haas D. 1995. Tn5<\/em>-directed cloning of pqq<\/em> genes from Pseudomonas fluorescens<\/em> CHA0: mutational inactivation of the genes results in overproduction of the antibiotic pyoluteorin. Applied and Environmental Microbiology<\/a><\/span> 61:3856-64<\/span><\/p>\n

Schnider U, Keel C, Blumer C, Troxler J, D\u00e9fago G, Haas D. 1995. Amplification of the housekeeping sigma factor in Pseudomonas fluorescens<\/em> CHA0 enhances antibiotic production and improves biocontrol abilities. Journal of Bacteriology<\/a><\/span> 177:5387-92.<\/span><\/p>\n

Maurhofer M, Keel C, Haas D, D\u00e9fago G. 1995. Influence of plant species on disease suppression by Pseudomonas fluorescens<\/em> strain CHA0 with enhanced antibiotic production. Plant Patholology<\/a><\/span> 44:40-50.<\/span><\/p>\n

G\u00f6rlach J, Raesecke HR, 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<\/a><\/span> 92:3166-70.<\/span><\/p>\n

Natsch A, Keel C, Pfirter HA, Haas D, D\u00e9fago G. 1994. Contribution of the global regulator gene gacA<\/em> to persistence and dissemination of Pseudomonas fluorescens<\/em> biocontrol strain CHA0 introduced into soil microcosms. Applied and Environmental Microbiology<\/a><\/span> 60:2553-60<\/span><\/p>\n

Maurhofer M, Keel C, Haas D, D\u00e9fago G. 1994. Pyoluteorin production by Pseudomonas fluorescens<\/em> strain CHA0 is involved in the suppression of Pythium damping-off of cress but not of cucumber. European Journal of Plant Pathology<\/a><\/span> 100:221-32.<\/span><\/p>\n

Maurhofer M, Keel C, Schnider U, Voisard C, Haas D, D\u00e9fago G. 1992. Influence of enhanced antibiotic production in Pseudomonas fluorescens<\/em> strain CHA0 on its disease suppressive capacity. Phytopathology<\/a><\/span> 82:190-5.<\/span><\/p>\n

Keel C, Schnider U, Maurhofer M, Voisard C, Laville J, Burger U, Wirthner P, Haas D, D\u00e9fago G. 1992. Suppression of root diseases by Pseudomonas fluorescens<\/em> CHA0: Importance of the bacterial secondary metabolite 2,4-diacetylphloroglucinol. Molecular Plant-Microbe Interactions<\/a><\/span> 5:4-13.<\/span><\/p>\n

Laville J, Voisard C, Keel C, Maurhofer M, D\u00e9fago G, Haas D. 1992. Global control in Pseudomonas fluorescens<\/em> mediating antibiotic synthesis and suppression of black root rot of tobacco.\u00a0Proceedings of the National Academy of Sciences of the United States of America<\/a><\/span> 89:1562-6.<\/span><\/p>\n

Keel C, Wirthner P, Oberh\u00e4nsli T, Voisard C, Burger U, Haas D, D\u00e9fago 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<\/span><\/a> 9:327-41.<\/span><\/p>\n

Voisard C, Keel C, Haas D, D\u00e8fago G. 1989. Cyanide production by Pseudomonas fluorescens<\/em> helps suppress black root rot of tobacco under gnotobiotic conditions. EMBO Journal<\/a><\/span> 8:351-8.<\/span><\/p>\n

Keel C, Voisard C, Berling C-H, Kahr G, D\u00e9fago G. 1989. Iron sufficiency, a prerequisite for suppression of tobacco black root rot by Pseudomonas fluorescens<\/em> strain CHA0 under gnotobiotic conditions. Phytopathology<\/a><\/span> 79:584-9.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Tsai HH, Tang Y, Jiang L, Xu X, D\u00e9nervaud Tendon V, Pang J, Jia Y, Wippel K, Vacheron J, Keel C, Andersen TG, Geldner N, Zhou F. 2025 . Localized glutamine leakage drives the spatial structure of root microbial colonization.<\/p>\n","protected":false},"author":1001061,"featured_media":0,"parent":238,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-19","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/pages\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/users\/1001061"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":4,"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/pages\/19\/revisions"}],"predecessor-version":[{"id":1218,"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/pages\/19\/revisions\/1218"}],"up":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/pages\/238"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/keel-lab\/wp-json\/wp\/v2\/media?parent=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}