Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Fitxers

713233.pdf (32.09 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2021-03-29

Llicència de publicació

cc-by (c) Alonso-Díaz, Alejandro et al., 2021
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/181293

A genome-wide association study reveals cytokinin as a major component in the root defense responses against Ralstonia solanacearum

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1093/jxb/eraa610

Resum

Bacterial wilt caused by the soil-borne pathogen Ralstonia solancearum is economically devastating, with no effective methods to fight the disease. This pathogen invades plants through their roots and colonizes their xylem, clogging the vasculature and causing rapid wilting. Key to preventing colonization are the early defense responses triggered in the host's root upon infection, which remain mostly unknown. Here, we have taken advantage of a high-throughput in vitro infection system to screen natural variability associated with the root growth inhibition phenotype caused by R. solanacearum in Arabidopsis during the first hours of infection. To analyze the genetic determinants of this trait, we have performed a genome-wide association study, identifying allelic variation at several loci related to cytokinin metabolism, including genes responsible for biosynthesis and degradation of cytokinin. Further, our data clearly demonstrate that cytokinin signaling is induced early during the infection process and cytokinin contributes to immunity against R. solanacearum. This study highlights a new role for cytokinin in root immunity, paving the way for future research that will help in understanding the mechanisms underpinning root defenses.

Matèries

Mecanismes de defensa en les plantes, Àcid salicílic, Arrels (Botànica), Immunitat de les plantes

Matèries (anglès)

Plant defenses, Salicylic acid, Roots (Botany), Plants immunity

Citació

Col·leccions

Articles publicats en revistes (Genètica, Microbiologia i Estadística)

Citació

ALONSO-DÍAZ, Alejandro, et al. A genome-wide association study reveals cytokinin as a major component in the root defense responses against Ralstonia solanacearum. Journal of Experimental Botany. 2021. Vol. 72, num. 7, pags. 2727-2740. ISSN 0022-0957. [consulted: 4 of August of 2026]. Available at: https://hdl.handle.net/2445/181293

Exportar metadades

JSON - METS

Compartir registre