Abstract
Environmental conditions profoundly affect plant disease development; however, the underlying molecular bases are not well understood. Here we show that elevated temperature significantly increases the susceptibility of Arabidopsis to Pseudomonas syringae pv. tomato (Pst) DC3000 independently of the phyB/PIF thermosensing pathway. Instead, elevated temperature promotes translocation of bacterial effector proteins into plant cells and causes a loss of ICS1-mediated salicylic acid (SA) biosynthesis. Global transcriptome analysis reveals a major temperature-sensitive node of SA signalling, impacting ~60% of benzothiadiazole (BTH)-regulated genes, including ICS1 and the canonical SA marker gene, PR1. Remarkably, BTH can effectively protect Arabidopsis against Pst DC3000 infection at elevated temperature despite the lack of ICS1 and PR1 expression. Our results highlight the broad impact of a major climate condition on the enigmatic molecular interplay between temperature, SA defence and function of a central bacterial virulence system in the context of a widely studied susceptible plant-pathogen interaction.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Elevated temperature significantly increased Arabidopsis susceptibility to Pst DC3000 independently of phyB/PIF.
- Taxon
- Arabidopsis
Arabidopsise0 - Treatment
- elevated temperaturee0
- Interactor
- Pseudomonas syringae pv. tomato (Pst) DC3000
Pseudomonas syringae pv. tomatoe0pathogen - Gene
- phyB/PIFe0
- Outcome
- susceptibilitye0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated temperature significantly increases the susceptibility of Arabidopsis to Pseudomonas syringae pv. tomato (Pst) DC3000 independently of the phyB/PIF thermosensing pathway”
Claim · model-written summary
Elevated temperature promoted bacterial effector translocation into plant cells.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- elevated temperaturee0
- Interactor
- bacteriale0pathogen
- Outcome
- translocation of bacterial effector proteins into plant cellse0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated temperature promotes translocation of bacterial effector proteins into plant cells”
t0“Arabidopsis”
Claim · model-written summary
Elevated temperature caused loss of ICS1-mediated SA biosynthesis.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- elevated temperaturee0
- Gene
- ICS1e0
- Outcome
- ICS1-mediated salicylic acid (SA) biosynthesise0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated temperature promotes translocation of bacterial effector proteins into plant cells and causes a loss of ICS1-mediated salicylic acid (SA) biosynthesis”
t0“Arabidopsis”
Claim · model-written summary
Temperature affected about 60% of BTH-regulated genes, including ICS1 and PR1.
- Taxon
- ArabidopsisArabidopsist0
- Gene
- ICS1e0
- Outcome
- benzothiadiazole (BTH)-regulated genese0
- Value
- ~60%e0
- Qualifier
- including ICS1 and the canonical SA marker gene, PR1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Global transcriptome analysis reveals a major temperature-sensitive node of SA signalling, impacting ~60% of benzothiadiazole (BTH)-regulated genes, including ICS1 and the canonical SA marker gene, PR1”
t0“Arabidopsis”
Claim · model-written summary
BTH protected Arabidopsis against Pst DC3000 infection at elevated temperature despite absent ICS1 and PR1 expression.
- Taxon
- ArabidopsisArabidopsise0
- Treatment
- BTHe0
- Interactor
- Pst DC3000e0pathogen
- Outcome
- Pst DC3000 infectione0
- Direction
- protecte0
- Qualifier
- despite the lack of ICS1 and PR1 expressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BTH can effectively protect Arabidopsis against Pst DC3000 infection at elevated temperature despite the lack of ICS1 and PR1 expression”
The same questions in other papers
heat · physiology: hormones · ArabidopsisResults agree
2 papers in the same direction as this paper
- negative
- negative
heat · nutrient: content · ArabidopsisResults agree
3 papers in the same direction as this paper
- no effect
- no effect
- negative
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.