The Cuticle Mutant eca2 Modifies Plant Defense Responses to Biotrophic and Necrotrophic Pathogens and Herbivory Insects.

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State: Serval
Version: author
Serval ID
serval:BIB_F7CA6E5F7D9D
Type
Article: article from journal or magazin.
Collection
Publications
Title
The Cuticle Mutant eca2 Modifies Plant Defense Responses to Biotrophic and Necrotrophic Pathogens and Herbivory Insects.
Journal
Molecular plant-microbe interactions
Author(s)
Blanc C., Coluccia F., L'Haridon F., Torres M., Ortiz-Berrocal M., Stahl E., Reymond P., Schreiber L., Nawrath C., Métraux J.P., Serrano M.
ISSN
0894-0282 (Print)
ISSN-L
0894-0282
Publication state
Published
Issued date
03/2018
Peer-reviewed
Oui
Volume
31
Number
3
Pages
344-355
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
We isolated previously several Arabidopsis thaliana mutants with constitutive expression of the early microbe-associated molecular pattern-induced gene ATL2, named eca (expresión constitutiva de ATL2). Here, we further explored the interaction of eca mutants with pest and pathogens. Of all eca mutants, eca2 was more resistant to a fungal pathogen (Botrytis cinerea) and a bacterial pathogen (Pseudomonas syringae) as well as to a generalist herbivorous insect (Spodoptera littoralis). Permeability of the cuticle is increased in eca2; chemical characterization shows that eca2 has a significant reduction of both cuticular wax and cutin. Additionally, we determined that eca2 did not display a similar compensatory transcriptional response, compared with a previously characterized cuticular mutant, and that resistance to B. cinerea is mediated by the priming of the early and late induced defense responses, including salicylic acid- and jasmonic acid-induced genes. These results suggest that ECA2-dependent responses are involved in the nonhost defense mechanism against biotrophic and necrotrophic pathogens and against a generalist insect by modulation and priming of innate immunity and late defense responses. Making eca2 an interesting model to characterize the molecular basis for plant defenses against different biotic interactions and to study the initial events that take place in the cuticle surface of the aerial organs.
Keywords
Animals, Arabidopsis/genetics, Arabidopsis/immunology, Arabidopsis/microbiology, Arabidopsis/parasitology, Arabidopsis Proteins/genetics, Arabidopsis Proteins/metabolism, Botrytis/physiology, Cyclopentanes, DNA, Plant/metabolism, DNA-Binding Proteins/genetics, DNA-Binding Proteins/metabolism, Disease Resistance, Gene Expression Profiling, Gene Expression Regulation, Plant, Genome, Plant, Herbivory, Insecta/physiology, Membrane Lipids, Models, Biological, Mutation/genetics, Oxylipins, Plant Diseases/genetics, Plant Diseases/immunology, Plant Diseases/microbiology, Plant Diseases/parasitology, Plant Epidermis/metabolism, Pseudomonas syringae/physiology, Waxes
Pubmed
Web of science
Create date
22/11/2017 9:40
Last modification date
21/08/2018 18:51
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