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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2014.07.006
|2 doi
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|a pubmed24n0802.xml
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|a (DE-627)NLM24083609X
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|a (NLM)25108263
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|a (PII)S0176-1617(14)00187-4
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a López-Cruz, Jaime
|e verfasserin
|4 aut
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|a Absence of endo-1,4-β-glucanase KOR1 alters the jasmonate-dependent defence response to Pseudomonas syringae in Arabidopsis
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 17.04.2015
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier GmbH. All rights reserved.
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|a 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis
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|a Cell wall
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|a Endo-glucanases
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|a Plant response
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|a Pseudomonas syringae
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Cyclopentanes
|2 NLM
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| 650 |
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|a DNA, Bacterial
|2 NLM
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| 650 |
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|a KOR1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Membrane Proteins
|2 NLM
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| 650 |
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|a Oxylipins
|2 NLM
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|a T-DNA
|2 NLM
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| 650 |
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|a jasmonic acid
|2 NLM
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| 650 |
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|a 6RI5N05OWW
|2 NLM
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| 650 |
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|a lipoxygenase 3
|2 NLM
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| 650 |
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|a EC 1.13.11.-
|2 NLM
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| 650 |
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|a Lipoxygenase
|2 NLM
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| 650 |
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|a EC 1.13.11.12
|2 NLM
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| 650 |
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|a Cellulase
|2 NLM
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| 650 |
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|a EC 3.2.1.4
|2 NLM
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| 650 |
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|a Salicylic Acid
|2 NLM
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| 650 |
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|a O414PZ4LPZ
|2 NLM
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| 700 |
1 |
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|a Finiti, Ivan
|e verfasserin
|4 aut
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|a Fernández-Crespo, Emma
|e verfasserin
|4 aut
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| 700 |
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|a Crespo-Salvador, Oscar
|e verfasserin
|4 aut
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| 700 |
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|a García-Agustín, Pilar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a González-Bosch, Carmen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 171(2014), 16 vom: 15. Okt., Seite 1524-32
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:171
|g year:2014
|g number:16
|g day:15
|g month:10
|g pages:1524-32
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|u http://dx.doi.org/10.1016/j.jplph.2014.07.006
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 171
|j 2014
|e 16
|b 15
|c 10
|h 1524-32
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