Abstract
Salicylic acid (SA) is an important regulator of plant resistance to biotrophic and hemi-biotrophic pathogens. The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible to both virulent and avirulent strains of the bacterial pathogen Pseudomonas syringae. Through positional cloning, the EPS1 gene was isolated and found to encode a novel member of the BAHD acyltransferase superfamily. Pathogen-induced accumulation of SA and expression of pathogenesis-related (PR) genes were compromised in the eps1 mutant. SA could induce PR1 gene expression and restore disease resistance in the eps1 mutant. These results suggest that EPS1 functions upstream of SA and may be involved directly in synthesis of a precursor or a regulatory molecule for SA biosynthesis. Mutations of EPS1 or other genes important for SA accumulation or signaling conferred enhanced resistance to the necrotrophic fungal pathogens Botrytis cinerea and Alternaria brassicicola in the Nossen-0 background but had little effect in the Columbia-0 background. These results suggest that there is natural variation among Arabidopsis ecotypes with respect to the antagonistic cross-talk between defense signaling pathways against various types of microbial pathogens.
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Claims 11
Claim · model-written summary
eps1 was hypersusceptible to virulent and avirulent P. syringae.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae0 - Material
- eps1e0
- Interactor
- Pseudomonas syringae
Pseudomonas syringaee0pathogen - Outcome
- hypersusceptiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible to both virulent and avirulent strains of the bacterial pathogen Pseudomonas syringae.”
Claim · model-written summary
EPS1 encodes a novel BAHD acyltransferase family member.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Gene
- EPS1e0
- Outcome
- encode a novel member of the BAHD acyltransferase superfamilye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the EPS1 gene was isolated and found to encode a novel member of the BAHD acyltransferase superfamily”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Pathogen-induced salicylic acid accumulation was compromised in eps1.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- eps1 mutante0
- Outcome
- Pathogen-induced accumulation of SAe0
- Direction
- compromisede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pathogen-induced accumulation of SA and expression of pathogenesis-related (PR) genes were compromised in the eps1 mutant.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Pathogenesis-related gene expression was compromised in eps1.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- eps1 mutante0
- Outcome
- expression of pathogenesis-related (PR) genese0
- Direction
- compromisede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pathogen-induced accumulation of SA and expression of pathogenesis-related (PR) genes were compromised in the eps1 mutant.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Salicylic acid induced PR1 expression in eps1.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- eps1 mutante0
- Treatment
- SAe0
- Gene
- PR1e0
- Outcome
- PR1 gene expressione0
- Direction
- inducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA could induce PR1 gene expression and restore disease resistance in the eps1 mutant.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Salicylic acid restored eps1 disease resistance.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- eps1 mutante0
- Treatment
- SAe0
- Outcome
- disease resistancee0
- Direction
- restoree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA could induce PR1 gene expression and restore disease resistance in the eps1 mutant.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Authors suggest EPS1 acts upstream of salicylic acid and may make an SA precursor or regulator.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Gene
- EPS1e0
- Outcome
- functions upstream of SAe0
- Qualifier
- may be involved directly in synthesis of a precursor or a regulatory molecule for SA biosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EPS1 functions upstream of SA and may be involved directly in synthesis of a precursor or a regulatory molecule for SA biosynthesis”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
SA-pathway mutations enhanced Botrytis cinerea resistance in Nossen-0.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- Nossen-0e0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Gene
- EPS1e0
- Outcome
- enhanced resistance to the necrotrophic fungal pathogens Botrytis cinereae0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutations of EPS1 or other genes important for SA accumulation or signaling conferred enhanced resistance to the necrotrophic fungal pathogens Botrytis cinerea and Alternaria brassicicola in the Nossen-0 background but had little effect in the Columbia-0 background.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
SA-pathway mutations enhanced Alternaria brassicicola resistance in Nossen-0.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- Nossen-0e0
- Interactor
- Alternaria brassicicola
Alternaria brassicicolae0pathogen - Gene
- EPS1e0
- Outcome
- enhanced resistance to the necrotrophic fungal pathogens Botrytis cinerea and Alternaria brassicicolae0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutations of EPS1 or other genes important for SA accumulation or signaling conferred enhanced resistance to the necrotrophic fungal pathogens Botrytis cinerea and Alternaria brassicicola in the Nossen-0 background but had little effect in the Columbia-0 background.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Those mutations had little resistance effect in Columbia-0.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- Columbia-0e0
- Interactor
- Botrytis cinereaBotrytis cinereae0pathogen
- Second interactor
- Alternaria brassicicolaAlternaria brassicicolae0pathogen
- Gene
- EPS1e0
- Outcome
- little effect in the Columbia-0 backgrounde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutations of EPS1 or other genes important for SA accumulation or signaling conferred enhanced resistance to the necrotrophic fungal pathogens Botrytis cinerea and Alternaria brassicicola in the Nossen-0 background but had little effect in the Columbia-0 background.”
e1“The enhanced pseudomonas susceptibility 1 (eps1) mutant in Arabidopsis thaliana is hypersusceptible”
Claim · model-written summary
Authors infer ecotype variation in defense signaling cross-talk.
- Taxon
- ArabidopsisArabidopsise0
- Outcome
- natural variation among Arabidopsis ecotypese0
- Qualifier
- antagonistic cross-talk between defense signaling pathwayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there is natural variation among Arabidopsis ecotypes with respect to the antagonistic cross-talk between defense signaling pathways against various types of microbial pathogens”
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See all 28 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.