Molecular and Genomic Characterization of the Pseudomonas syringae Phylogroup 4: An Emerging Pathogen of Arabidopsis thaliana and Nicotiana benthamiana

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dc.catalogadorgrr
dc.contributor.authorZavala, Diego
dc.contributor.authorFuenzalida Valdivia, Isabel Cristina
dc.contributor.authorGangas, Maria Victoria
dc.contributor.authorMargutti, Micaela Peppino
dc.contributor.authorBartoli, Claudia
dc.contributor.authorRoux, Fabrice
dc.contributor.authorMeneses Araya, Claudio Antonio
dc.contributor.authorHerrera Vásquez, Ariel Esteban
dc.contributor.authorBlanco Herrera, María Francisca
dc.date.accessioned2025-11-18T19:17:22Z
dc.date.available2025-11-18T19:17:22Z
dc.date.issued2022
dc.description.abstractEnvironmental fluctuations such as increased temperature, water availability, and air CO2 concentration triggered by climate change influence plant disease dynamics by affecting hosts, pathogens, and their interactions. Here, we describe a newly discovered Pseudomonas syringae strain found in a natural population of Arabidopsis thaliana collected from the southwest of France. This strain, called Psy RAYR-BL, is highly virulent on natural Arabidopsis accessions, Arabidopsis model accession Columbia 0, and tobacco plants. Despite the severe disease phenotype caused by the Psy RAYR-BL strain, we identified a reduced repertoire of putative Type III virulence effectors by genomic sequencing compared to P. syringae pv tomato (Pst) DC3000. Furthermore, hopBJ1(Psy) is found exclusively on the Psy RAYR-BL genome but not in the Pst DC3000 genome. The plant expression of HopBJ1(Psy) induces ROS accumulation and cell death. In addition, HopBJ1(Psy) participates as a virulence factor in this plant-pathogen interaction, likely explaining the severity of the disease symptoms. This research describes the characterization of a newly discovered plant pathogen strain and possible virulence mechanisms underlying the infection process shaped by natural and changing environmental conditions.
dc.fechaingreso.objetodigital2025-11-18
dc.fuente.origenWOS
dc.identifier.doi10.3390/microorganisms10040707
dc.identifier.eissn2076-2607
dc.identifier.pubmedid35456758
dc.identifier.scopusidSCOPUS_ID:85127205027
dc.identifier.urihttps://doi.org/10.3390/microorganisms10040707
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107034
dc.identifier.wosidWOS:000786756700001
dc.information.autorucFacultad de Ciencias Biológicas; Fuenzalida Valdivia, Isabel Cristina; S/I; 1365737
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Meneses Araya, Claudio Antonio; 0000-0002-6452-8950; 1246418
dc.information.autorucFacultad de Ciencias Biológicas; Herrera Vásquez, Ariel Esteban; 0000-0003-4313-8475; 142395
dc.information.autorucFacultad de Ciencias Biológicas; Blanco Herrera, María Francisca; 0000-0002-7497-9907; 12937
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherMDPI
dc.revistaMicroorganisms
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectPseudomonas syringae
dc.subjectArabidopsis thaliana
dc.subjectDisease emergence
dc.subjectPathogenic reservoirs
dc.subjectHopBJ1
dc.subjectVirulence factor
dc.subjectT3SS
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.ods03 Good health and well-being
dc.subject.ods13 Climate action
dc.subject.odspa03 Salud y bienestar
dc.subject.odspa13 Acción por el clima
dc.titleMolecular and Genomic Characterization of the Pseudomonas syringae Phylogroup 4: An Emerging Pathogen of Arabidopsis thaliana and Nicotiana benthamiana
dc.typeartículo
dc.volumen10
sipa.codpersvinculados1365737
sipa.codpersvinculados1246418
sipa.codpersvinculados142395
sipa.codpersvinculados12937
sipa.trazabilidadWOS;2022-07-08
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