Mostrar el registro sencillo del ítem
Absence of endo-1,4-β-glucanase KOR1 alters the Jasmonate-dependent defence response to Pseudomonas syringae in Arabidopsis
dc.contributor.author | López Cruz, J. | |
dc.contributor.author | Finiti, Iván | |
dc.contributor.author | Fernández Crespo, Emma | |
dc.contributor.author | Crespo Salvador, Óscar | |
dc.contributor.author | García Agustín, Pilar | |
dc.contributor.author | González-Bosch, Carmen | |
dc.date.accessioned | 2015-09-16T11:35:58Z | |
dc.date.available | 2015-09-16T11:35:58Z | |
dc.date.issued | 2014-10 | |
dc.identifier.citation | LÓPEZ CRUZ, Jaime, et al. Absence of endo-1, 4-β-glucanase KOR1 alters the Jasmonate-dependent defence response to Pseudomonas syringae in Arabidopsis. Journal of plant physiology, 2014, 171.16: 1524-1532. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/132530 | |
dc.description.abstract | During plant–pathogen interactions, the plant cell wall forms part of active defence against invaders. In recent years, cell wall-editing enzymes, associated with growth and development, have been related to plant susceptibility or resistance. Our previous work identified a role for several tomato and Arabidopsis endo-1,4-β-glucanases (EGs) in plant–pathogen interactions. Here we studied the response of the Arabidopsis thaliana T-DNA insertion mutant lacking EG Korrigan1 (KOR1) infected with Pseudomonas syringae. KOR1 is predicted to be an EG which is thought to participate in cellulose biosynthesis. We found that kor1-1 plants were more susceptible to P. syringae, and displayed severe disease symptoms and enhanced bacterial growth if compared to Wassilewskija (Ws) wild-type plants. Hormonal and gene expression analyses revealed that the jasmonic acid (JA) pathway was activated more in kor1-1 plants with an increase in the JA-biosynthesis gene LOX3 and a greater accumulation of JA. Upon infection the accumulation of JA and JA-isoleucine (JA-Ile) was higher than in wild-type plants and increased the induction of LOX3 and the JA-responsive PDF1.2 gene. In addition, the increase of salicylic acid (SA) in healthy and infected kor1-1 may reflect the complex interaction between JA and SA, which results in the more susceptible phenotype displayed by the infected mutant plants. Callose deposition was enhanced in infected kor1-1 and an increase in pathogen-induced hydrogen peroxide took place. The susceptible phenotype displayed by KOR1-deficient plants was coronatine-independent. No significant changes were detected in the hormonal profile of the kor1-1 plants infected by coronatine-deficient P. syringae cmaA, which supports that absence of EG KOR1 alters per se the plant response to infection. We previously reported increased resistance of kor1-1 to B. cinerea, hence, the lack of this EG alters cell wall properties and plant responses in such a way that benefits P. syringae colonisation but restricts B. cinerea invasion. | ca_CA |
dc.format.extent | 8 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | Journal of Plant Physiology Volume 171, Issue 16, 15 October 2014 | ca_CA |
dc.rights | Copyright © 2014 Elsevier GmbH. All rights reserved. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Arabidopsis | ca_CA |
dc.subject | cell wall | ca_CA |
dc.subject | endo-glucanases | ca_CA |
dc.subject | plant response | ca_CA |
dc.subject | Pseudomonas syringae | ca_CA |
dc.title | Absence of endo-1,4-β-glucanase KOR1 alters the Jasmonate-dependent defence response to Pseudomonas syringae in Arabidopsis | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1016/j.jplph.2014.07.006 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://www.sciencedirect.com/science/article/pii/S0176161714001874 | ca_CA |
Ficheros en el ítem
Ficheros | Tamaño | Formato | Ver |
---|---|---|---|
No hay ficheros asociados a este ítem. |
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
CAMN_Articles [566]