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Título
Arabidopsiscell wall composition determines disease resistance specificity and fitness
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Proceedings of the National Academy of Sciences
Número de la revista
5
Cita Bibliográfica
Molina, A., Miedes, E., Bacete, L., Rodríguez, T., Mélida, H., Denancé, N., Sánchez-Vallet, A., Rivière, M.-P., López, G., Freydier, A., Barlet, X., Pattathil, S., Hahn, M., & Goffner, D. (2021). Arabidopsis cell wall composition determines disease resistance specificity and fitness. Proceedings of the National Academy of Sciences of the United States of America, 118(5). https://doi.org/10.1073/PNAS.2010243118
Editorial
National Academy of Sciences
Fecha
2021
ISSN
0027-8424
Resumen
[EN] Plant cell walls are complex structures subject to dynamic remodeling
in response to developmental and environmental cues and
play essential functions in disease resistance responses. We tested
the specific contribution of plant cell walls to immunity by
determining the susceptibility of a set of Arabidopsis cell wall mutants
(cwm) to pathogens with different parasitic styles: a vascular
bacterium, a necrotrophic fungus, and a biotrophic oomycete. Remarkably,
most cwm mutants tested (29/34; 85.3%) showed alterations
in their resistance responses to at least one of these
pathogens in comparison to wild-type plants, illustrating the relevance
of wall composition in determining disease-resistance phenotypes.
We found that the enhanced resistance of cwm plants to
the necrotrophic and vascular pathogens negatively impacted
cwm fitness traits, such as biomass and seed yield. Enhanced resistance
of cwm plants is not only mediated by canonical immune
pathways, like those modulated by phytohormones or microbeassociated
molecular patterns, which are not deregulated in the
cwm tested. Pectin-enriched wall fractions isolated from cwm
plants triggered immune responses in wild-type plants, suggesting
that wall-mediated defensive pathways might contribute to cwm
resistance. Cell walls of cwm plants show a high diversity of composition
alterations as revealed by glycome profiling that detect
specific wall carbohydrate moieties. Mathematical analysis of glycome
profiling data identified correlations between the amounts of
specific wall carbohydrate moieties and disease resistance phenotypes
of cwm plants. These data support the relevant and specific
function of plant wall composition in plant immune response modulation
and in balancing disease resistance/development trade-offs.
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/MINECO/ Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/ BIO2015-64077-R/ES/ RESPUESTAS DE INMUNIDAD REGULADAS POR EL SISTEMA DE PERCEPCION DE INTEGRIDAD DE LA PARED CELULAR VEGETAL
- info:eu-repo/grantAgreement/AEI/ Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/ RTI2018-096975-B-I00/ES/ RESPUESTAS DE INMUNIDAD VEGETAL REGULADAS POR PATRONES MOLECULARES ASOCIADOS A DAÑO: DEL RECONOCIMIENTO DE DAMPS (DAMAGE-ASSOCIATED MOLECULAR PATTERNS) A LA RESISTENCIA
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