Abstract
Pseudomonas syringae is a Gram-negative bacterium that infects multiple plant species by manipulating cellular processes via injection of type three secreted effectors (T3SEs) into host cells. Nucleotide-binding leucine-rich repeat (NLR) resistance (R) proteins recognize specific T3SEs and trigger a robust immune response, called effector-triggered immunity (ETI), which limits pathogen proliferation and is often associated with localized programmed cell death, known as the hypersensitive response (HR). In this study, we examine the influence of elevated temperature on two ETI outputs: HR and pathogen virulence suppression. We found that in the Arabidopsis thaliana accession Col-0, elevated temperatures suppress the HR, but have minimal influence on ETI-associated P. syringae virulence suppression, thereby uncoupling these two ETI responses. We also identify accessions of Arabidopsis that exhibit impaired P. syringae virulence suppression at elevated temperature, highlighting the natural variation that exists in coping with biotic and abiotic stresses. These results not only reinforce the influence of abiotic factors on plant immunity but also emphasize the importance of carefully documented environmental conditions in studies of plant immunity.
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Claims 4
Claim · model-written summary
Elevated temperature suppressed the hypersensitive response (HR) in Arabidopsis thaliana accession Col-0.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Material
- Col-0e1
- Treatment
- elevated temperaturese1
- Outcome
- HRe1
- Direction
- suppresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“in the Arabidopsis thaliana accession Col-0, elevated temperatures suppress the HR”
Claim · model-written summary
Elevated temperature had minimal influence on ETI-associated P. syringae virulence suppression in Arabidopsis.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Treatment
- elevated temperaturese1
- Interactor
- P. syringae
Pseudomonas syringaee2pathogen - Outcome
- ETI-associated P. syringae virulence suppressione2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“in the Arabidopsis thaliana accession Col-0, elevated temperatures suppress the HR”
e2“but have minimal influence on ETI-associated P. syringae virulence suppression”
Claim · model-written summary
Some Arabidopsis accessions showed impaired P. syringae virulence suppression at elevated temperature.
- Taxon
- ArabidopsisArabidopsise3
- Material
- accessionse3
- Treatment
- elevated temperaturee3
- Interactor
- P. syringaePseudomonas syringaee3pathogen
- Outcome
- impaired P. syringae virulence suppressione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“We also identify accessions of Arabidopsis that exhibit impaired P. syringae virulence suppression at elevated temperature”
Claim · model-written summary
The authors recommend carefully documenting environmental conditions in plant immunity studies.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Outcome
- carefully documented environmental conditionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“in the Arabidopsis thaliana accession Col-0, elevated temperatures suppress the HR”
e4“emphasize the importance of carefully documented environmental conditions in studies of plant immunity”
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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.