Abstract
Plant response to individual biotic stresses depends on its physiological state when the challenge is perceived. Optimal conditions for infestation of the spider mite Tetranychus urticae are associated with high temperatures and scarce precipitation. Here, we analyze the impact of previous interactions with the hemibiotrophic bacteria Pseudomonas syringae pv. tomato DC3000 or the necrotroph Dickeya dadantii 3937 on Arabidopsis thaliana plants under mite optimal conditions. Our results showed that both bacterial strains inoculated at adverse low humidity conditions induced the expression of JA-related genes in the plant even when disease symptoms are not observed. This effect was more evident when heat-inactivated bacteria were used, but a significant reduction in mite leaf damage was only detected when plants were previously inoculated with the heat-inactivated hemibiotroph bacteria. These results indicate that bacterial interaction compromises the plant response to subsequent herbivore stress, even under suboptimal conditions for bacterial multiplication.
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Claims 4
Claim · model-written summary
Pseudomonas syringae inoculation at low humidity induced Arabidopsis JA-related gene expression without visible disease.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- bacterial strains inoculated at adverse low humidity conditionse0
- Interactor
- Pseudomonas syringae pv. tomato DC3000Pseudomonas syringae pv. tomato str. DC3000e1pathogen
- Outcome
- expression of JA-related genese0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results showed that both bacterial strains inoculated at adverse low humidity conditions induced the expression of JA-related genes in the plant even when disease symptoms are not observed.”
t0“Arabidopsis thaliana plants under mite optimal conditions.”
e1“Here, we analyze the impact of previous interactions with the hemibiotrophic bacteria Pseudomonas syringae pv. tomato DC3000 or the necrotroph Dickeya dadantii 3937 on Arabidopsis thaliana plants under mite optimal conditions.”
Claim · model-written summary
Dickeya dadantii inoculation at low humidity induced Arabidopsis JA-related gene expression without visible disease.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- bacterial strains inoculated at adverse low humidity conditionse0
- Interactor
- Dickeya dadantii 3937
-_Bacterial_soft_rot.jpg?width=60)
Dickeya dadantii 3937e1pathogen - Outcome
- expression of JA-related genese0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
-_Bacterial_soft_rot.jpg?width=500)
Verbatim
e0“Our results showed that both bacterial strains inoculated at adverse low humidity conditions induced the expression of JA-related genes in the plant even when disease symptoms are not observed.”
t0“Arabidopsis thaliana plants under mite optimal conditions.”
e1“Here, we analyze the impact of previous interactions with the hemibiotrophic bacteria Pseudomonas syringae pv. tomato DC3000 or the necrotroph Dickeya dadantii 3937 on Arabidopsis thaliana plants under mite optimal conditions.”
Claim · model-written summary
Heat-inactivated bacteria elicited a more evident JA gene-expression effect.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- heat-inactivated bacteriae0
- Outcome
- This effecte0
- Direction
- more evidente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect was more evident when heat-inactivated bacteria were used, but a significant reduction in mite leaf damage was only detected when plants were previously inoculated with the heat-inactivated hemibiotroph bacteria.”
t0“Arabidopsis”
e1“Here, we analyze the impact of previous interactions with the hemibiotrophic bacteria Pseudomonas syringae pv. tomato DC3000 or the necrotroph Dickeya dadantii 3937 on Arabidopsis thaliana plants under mite optimal conditions.”
Claim · model-written summary
Prior heat-inactivated hemibiotroph inoculation significantly reduced mite leaf damage.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- inoculated with the heat-inactivated hemibiotroph bacteriae0
- Interactor
- Tetranychus urticae
.jpg?width=60)
Tetranychus urticaet0herbivore - Second interactor
- Pseudomonas syringae pv. tomato DC3000Pseudomonas syringae pv. tomato str. DC3000e1pathogen
- Outcome
- mite leaf damagee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“This effect was more evident when heat-inactivated bacteria were used, but a significant reduction in mite leaf damage was only detected when plants were previously inoculated with the heat-inactivated hemibiotroph bacteria.”
t0“Arabidopsis against Tetranychus urticae herbivory”
e1“Here, we analyze the impact of previous interactions with the hemibiotrophic bacteria Pseudomonas syringae pv. tomato DC3000 or the necrotroph Dickeya dadantii 3937 on Arabidopsis thaliana plants under mite optimal conditions.”
The same questions in other papers
heat · Bacteria · ArabidopsisPositive and negative results
1 in the opposite direction
- no effect
inoculation · Pseudomonas syringae pv. tomato str. DC3000 · Arabidopsis thaliana (thale cress)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.