Abstract
Abscisic acid (ABA) plays a multifaceted role in plant immunity and can either increase resistance or increase susceptibility to some bacterial and fungal pathogens depending on the pathosystem. ABA is also known to mediate plant defence to some viruses. In this study, the relationship between the ABA pathway and rice black-streaked dwarf virus (RBSDV) was investigated in rice. The expression of ABA pathway genes was significantly reduced upon RBSDV infection. Application of exogenous hormones and various ABA pathway mutants revealed that the ABA pathway plays a negative role in rice defence against RBSDV. Exogenous hormone treatment and virus inoculation showed that ABA inhibits the jasmonate-mediated resistance to RBSDV. ABA treatment also suppressed accumulation of reactive oxygen species by inducing the expression of superoxidase dismutases and catalases. Thus, ABA modulates the rice-RBSDV interaction by suppressing the jasmonate pathway and regulating reactive oxygen species levels. This is the first example of ABA increasing susceptibility to a plant virus.
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Claims 6
Claim · model-written summary
RBSDV infection significantly reduced ABA pathway gene expression in rice.
- Taxon
- rice
Oryza sativae1 - Treatment
- RBSDV infectione0
- Interactor
- rice black-streaked dwarf virusRice black streaked dwarf viruse2pathogen
- Outcome
- expression of ABA pathway genese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression of ABA pathway genes was significantly reduced upon RBSDV infection.”
e1“investigated in rice”
e2“rice black-streaked dwarf virus (RBSDV)”
Claim · model-written summary
The ABA pathway negatively regulates rice defense against RBSDV.
- Taxon
- riceOryza sativae0
- Interactor
- rice black-streaked dwarf virusRice black streaked dwarf viruse1pathogen
- Outcome
- rice defence against RBSDVe0
- Direction
- negativee0
- Qualifier
- ABA pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ABA pathway plays a negative role in rice defence against RBSDV”
e1“rice black-streaked dwarf virus (RBSDV)”
Claim · model-written summary
ABA inhibited jasmonate-mediated resistance to RBSDV in rice.
- Taxon
- riceOryza sativae1
- Interactor
- rice black-streaked dwarf virusRice black streaked dwarf viruse2pathogen
- Compound
- ABAe0
- Outcome
- jasmonate-mediated resistance to RBSDVe0
- Direction
- inhibitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA inhibits the jasmonate-mediated resistance to RBSDV”
e1“investigated in rice”
e2“rice black-streaked dwarf virus (RBSDV)”
Claim · model-written summary
ABA treatment suppressed reactive oxygen species accumulation.
- Taxon
- riceOryza sativae1
- Treatment
- ABA treatmente0
- Outcome
- accumulation of reactive oxygen speciese0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA treatment also suppressed accumulation of reactive oxygen species”
e1“investigated in rice”
Claim · model-written summary
ABA treatment induced superoxidase dismutase expression.
- Taxon
- riceOryza sativae1
- Treatment
- ABA treatmente0
- Gene
- superoxidase dismutasese0
- Outcome
- expression of superoxidase dismutasese0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA treatment also suppressed accumulation of reactive oxygen species by inducing the expression of superoxidase dismutases and catalases.”
e1“investigated in rice”
Claim · model-written summary
ABA treatment induced catalase expression.
- Taxon
- riceOryza sativae1
- Treatment
- ABA treatmente2
- Gene
- catalasese0
- Outcome
- expression of superoxidase dismutases and catalasese0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inducing the expression of superoxidase dismutases and catalases”
e1“investigated in rice”
e2“ABA treatment also suppressed”
The same questions in other papers
(+)-abscisic acid · physiology: oxidative · Oryza sativa (rice)Results differ
2 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
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See all 15 papers →infection · Rice black streaked dwarf virus · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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.