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

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dc.contributor.authorZavala, Diego
dc.contributor.authorFuenzalida, Isabel
dc.contributor.authorGangas, Maria Victoria
dc.contributor.authorMargutti, Micaela Peppino
dc.contributor.authorBartoli, Claudia
dc.contributor.authorRoux, Fabrice
dc.contributor.authorMeneses, Claudio
dc.contributor.authorHerrera-Vasquez, Ariel
dc.contributor.authorBlanco-Herrera, Francisca
dc.date.accessioned2025-01-20T21:08:52Z
dc.date.available2025-01-20T21:08:52Z
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.fuente.origenWOS
dc.identifier.doi10.3390/microorganisms10040707
dc.identifier.eissn2076-2607
dc.identifier.urihttps://doi.org/10.3390/microorganisms10040707
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93498
dc.identifier.wosidWOS:000786756700001
dc.issue.numero4
dc.language.isoen
dc.revistaMicroorganisms
dc.rightsacceso restringido
dc.subjectPseudomonas syringae
dc.subjectArabidopsis thaliana
dc.subjectdisease emergence
dc.subjectpathogenic reservoirs
dc.subjectHopBJ1
dc.subjectvirulence factor
dc.subjectT3SS
dc.subject.ods02 Zero Hunger
dc.subject.ods13 Climate Action
dc.subject.odspa02 Hambre cero
dc.subject.odspa13 Acción por el clima
dc.titleMolecular and Genomic Characterization of the <i>Pseudomonas syringae</i> Phylogroup 4: An Emerging Pathogen of <i>Arabidopsis thaliana</i> and <i>Nicotiana benthamiana</i>
dc.typeartículo
dc.volumen10
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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