Abstract
Plant-virus interactions are affected by environmental factors, including temperature. Plant defenses are often inhibited by high or low temperature. In this study, oxidative damage and gene expression were detected in Arabidopsis thaliana infected with cucumber mosaic virus (CMV) at different temperatures. Before virus inoculation, plants were treated with jasmonic acid (JA) and salicylic acid (SA), both of which are important signaling molecules in plant defense responses. The levels of MDA and hydrogen peroxide (H2O2), and electrolyte leakage were significantly higher in CMV-infected leaves at 15 and 37°C. The accumulation of H2O2 and superoxide radical (O 2 ·− ) was obviously suppressed by spraying with JA followed by SA (JA → SA) at different temperatures. The CMV-CP expression analysis showed that virus replication was inhibited efficiently in the (JA → SA) treatment. Therefore, many JA- and SA-responsible resistance genes were quantified; MPK4 was expressed highly and steadily in the (JA → SA) treatment. To further confirm the role of MPK4, the CMV-CP gene expression was evaluated in wild-type Arabidopsis and its mpk4 mutant infected with CMV. The results suggested that MPK4 might play an important role in the antagonism between JA and SA at temperature fluctuation.
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Claims 5
Claim · model-written summary
CMV-infected leaves had higher MDA, hydrogen peroxide and electrolyte leakage at 15 and 37°C.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- CMV-infectede0
- Interactor
- CMV
cucumber mosaic cucumoviruse0pathogen - Outcome
- MDA and hydrogen peroxide (H2O2), and electrolyte leakagee0
- Direction
- highere0
- Qualifier
- 15 and 37°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The levels of MDA and hydrogen peroxide (H2O2), and electrolyte leakage were significantly higher in CMV-infected leaves at 15 and 37°C.”
t0“Arabidopsis”
Claim · model-written summary
JA followed by SA suppressed hydrogen peroxide and superoxide accumulation across temperatures.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- spraying with JA followed by SA (JA → SA)e0
- Outcome
- accumulation of H2O2 and superoxide radical (O 2 ·− )e0
- Direction
- suppressede0
- Qualifier
- different temperaturese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of H2O2 and superoxide radical (O 2 ·− ) was obviously suppressed by spraying with JA followed by SA (JA → SA) at different temperatures.”
t0“Arabidopsis”
Claim · model-written summary
JA followed by SA inhibited CMV replication.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- JA → SAe0
- Interactor
- CMVcucumber mosaic cucumoviruse0pathogen
- Outcome
- virus replicatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CMV-CP expression analysis showed that virus replication was inhibited efficiently in the (JA → SA) treatment.”
t0“Arabidopsis”
Claim · model-written summary
MPK4 expression was high and steady after JA followed by SA.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- JA → SAe0
- Gene
- MPK4e0
- Outcome
- MPK4 was expressede0
- Direction
- highly and steadilye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MPK4 was expressed highly and steadily in the (JA → SA) treatment.”
t0“Arabidopsis”
Claim · model-written summary
The authors suggest MPK4 plays a role in JA-SA antagonism during temperature fluctuation.
- Taxon
- ArabidopsisArabidopsist0
- Gene
- MPK4e0
- Outcome
- antagonism between JA and SAe0
- Qualifier
- temperature fluctuatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MPK4 might play an important role in the antagonism between JA and SA at temperature fluctuation.”
t0“Arabidopsis”
The same questions in other papers
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- negative
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salicylic acid · physiology: oxidative · ArabidopsisPositive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
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See all 10 papers →salicylic acid · cucumber mosaic cucumovirus · ArabidopsisResults agree
1 paper in the same direction as this paper
- positive
jasmonic acid · cucumber mosaic cucumovirus · ArabidopsisResults agree
1 paper in the same direction as this paper
- positive
application · physiology: oxidative · ArabidopsisPositive and negative results
1 in the opposite direction
- 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.