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Título
Immune Priming Triggers Cell Wall Remodeling and Increased Resistance to Halo Blight Disease in Common Bean
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Plants
Número de la revista
8
Cita Bibliográfica
De la Rubia, A. G., Mélida, H., Centeno, M. L., Encina, A., & García-Angulo, P. (2021). Immune priming triggers cell wall remodeling and increased resistance to halo blight disease in common bean. Plants, 10(8). https://doi.org/10.3390/PLANTS10081514
Editorial
MDPI
Fecha
2021
Resumen
[EN] The cell wall (CW) is a dynamic structure extensively remodeled during plant growth
and under stress conditions, however little is known about its roles during the immune system
priming, especially in crops. In order to shed light on such a process, we used the Phaseolus vulgaris-
Pseudomonas syringae (Pph) pathosystem and the immune priming capacity of 2,6-dichloroisonicotinic
acid (INA). In the first instance we confirmed that INA-pretreated plants were more resistant to
Pph, which was in line with the enhanced production of H2O2 of the primed plants after elicitation
with the peptide flg22. Thereafter, CWs from plants subjected to the different treatments (non- or
Pph-inoculated on non- or INA-pretreated plants) were isolated to study their composition and
properties. As a result, the Pph inoculation modified the bean CW to some extent, mostly the pectic
component, but the CW was as vulnerable to enzymatic hydrolysis as in the case of non-inoculated
plants. By contrast, the INA priming triggered a pronounced CW remodeling, both on the cellulosic
and non-cellulosic polysaccharides, and CW proteins, which resulted in a CW that was more resistant
to enzymatic hydrolysis. In conclusion, the increased bean resistance against Pph produced by INA
priming can be explained, at least partially, by a drastic CW remodeling.
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