Abstract
A plant’s defensive capacity can be enhanced by treatment with various synthetic and natural compounds capable of improving its immune system and make it more resistant. This is called priming. Primed plants express faster and stronger enhanced defence upon encountering either abiotic or biotic stress. Traditionally, plant stress has been studied by applying a single type of stress such as drought, salinity or infection and analyzing phenotypic and molecular aspects of the resulting plant phenotype. However, this type of analysis is in sharp contrast to natural conditions where plants are simultaneously subjected to a combination of different abiotic and biotic stresses that limit crop yields. Recent evidence shows that a combination of abiotic and biotic stress can have a positive effect on plant performance by reducing the susceptibility to biotic stress. Such an interaction between both types of stress points to crosstalk between their respective signalling pathways. Using the non-protein amino acid β-aminobutyric acid (BABA) to prime tomato plants, we found that BABA-treated plants showed earlier and higher expression of PR1 and PR5 genes following combination of salt stress and infection with Botrytis cinerea compared to non-treated plants exposed to salt. Histochemical analysis revealed that in BABA-treated plants, induced levels of callose deposition and lignin accumulation were higher than in non-treated controls, while the spread of B. cinerea was strongly reduced. A rapid H2O2 accumulation detected in BABA-treated plants under combined stress, may have contributed to the observed decrease in the pathogen’s proliferation.
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Claims 4
Claim · model-written summary
BABA-treated tomato plants showed earlier and higher expression of PR1 and PR5 genes under combined salt stress and Botrytis cinerea infection than non-treated plants exposed to salt.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- BABAe2
- Interactor
- Botrytis cinerea
Botrytis cinereae2pathogen - Gene
- PR1 and PR5e2
- Outcome
- expression of PR1 and PR5 genese2
- Direction
- highere2
- Qualifier
- earliere2
- Comparator
- non-treated plants exposed to salte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to prime tomato plants”
e2“BABA-treated plants showed earlier and higher expression of PR1 and PR5 genes following combination of salt stress and infection with Botrytis cinerea compared to non-treated plants exposed to salt”
Claim · model-written summary
In BABA-treated tomato plants under combined stress, callose deposition and lignin accumulation were higher than in non-treated controls.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- BABAe3
- Outcome
- callose deposition and lignin accumulatione3
- Direction
- highere3
- Comparator
- non-treated controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to prime tomato plants”
e3“in BABA-treated plants, induced levels of callose deposition and lignin accumulation were higher than in non-treated controls, while the spread of B. cinerea was strongly reduced”
Claim · model-written summary
In BABA-treated tomato plants, the spread of Botrytis cinerea was strongly reduced compared with non-treated controls.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- BABAe3
- Interactor
- B. cinereaBotrytis cinereae3pathogen
- Outcome
- spread of B. cinereae3
- Direction
- strongly reducede3
- Comparator
- non-treated controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to prime tomato plants”
e3“in BABA-treated plants, induced levels of callose deposition and lignin accumulation were higher than in non-treated controls, while the spread of B. cinerea was strongly reduced”
Claim · model-written summary
A rapid H2O2 accumulation in BABA-treated tomato plants under combined stress may have contributed to the observed decrease in pathogen proliferation.
- Taxon
- tomatoSolanum lycopersicume1
- Compound
- H2O2e4
- Outcome
- observed decreasee4
- Qualifier
- may have contributede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to prime tomato plants”
e4“A rapid H2O2 accumulation detected in BABA-treated plants under combined stress, may have contributed to the observed decrease”
The same questions in other papers
3-aminobutanoic acid · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- negative
3-aminobutanoic acid · Botrytis cinerea · Solanum lycopersicum (tomato)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
3 papers more in this group
See all 7 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.