Abstract
Defense priming allows plants to enhance their immune responses to subsequent pathogen challenges. Recent reports suggested that acquired resistances in parental generation can be inherited into descendants. Although epigenetic mechanisms are plausible tools enabling the transmission of information or phenotypic traits induced by environmental cues across generations, the mechanism for the transgenerational inheritance of defense priming in plants has yet to be elucidated. With the initial aim to elucidate an epigenetic mechanism for the defense priming in plants, we reassessed the transgenerational inheritance of plant defense, however, could not observe any evidence supporting it. By using the same dipping method with previous reports, Arabidopsis was exposed repeatedly to Pseudomonas syringae pv tomato DC3000 (Pst DC3000) during vegetative or reproductive stages. Irrespective of the developmental stages of parental plants that received pathogen infection, the descendants did not exhibit primed resistance phenotypes, defense marker gene (PR1) expression, or elevated histone acetylation within PR1 chromatin. In assays using the pressure-infiltration method for infection, we obtained the same results as above. Thus, our results suggest that the previous observations on the transgenerational inheritance of defense priming in plants should be more extensively and carefully reassessed. [BMB Reports 2022; 55(7): 342-347].
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Claims 2
Claim · model-written summary
Descendants of Arabidopsis repeatedly exposed to Pseudomonas syringae DC3000 showed no primed resistance, PR1 expression or elevated PR1 histone acetylation.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- exposed repeatedly to Pseudomonas syringae pv tomato DC3000e2
- Interactor
- Pseudomonas syringae pv tomato DC3000
Pseudomonas syringaee2pathogen - Gene
- PR1e1
- Outcome
- primed resistance phenotypes, defense marker gene (PR1) expression, or elevated histone acetylation within PR1 chromatine1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e1“the descendants did not exhibit primed resistance phenotypes, defense marker gene (PR1) expression, or elevated histone acetylation within PR1 chromatin”
e2“Arabidopsis was exposed repeatedly to Pseudomonas syringae pv tomato DC3000 (Pst DC3000) during vegetative or reproductive stages”
Claim · model-written summary
Previous reports on transgenerational inheritance of defense priming in plants should be reassessed more extensively and carefully.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Outcome
- transgenerational inheritance of defense priminge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e1“the previous observations on the transgenerational inheritance of defense priming in plants should be more extensively and carefully reassessed”
The same questions in other papers
Solanum lycopersicum · molecular: expression · Arabidopsis thaliana (thale cress)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
Pseudomonas syringae · molecular: expression · Arabidopsis thaliana (thale cress)Positive and negative results
5 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.