Abstract
As multifaceted molecules, reactive oxygen species (ROS) are known to accumulate in response to various stresses. Ozone (O3 ) is an air pollutant with detrimental effect on plants and O3 can also be used as a tool to study the role of ROS in signalling. Genetic variation of O3 sensitivity in different Arabidopsis accessions highlights the complex genetic architecture of plant responses to ROS. To investigate the genetic basis of O3 sensitivity, a recombinant inbred line (RIL) population between two Arabidopsis accessions with distinct O3 sensitivity, C24 (O3 tolerant) and Te (O3 sensitive) was used for quantitative trait loci (QTL) mapping. Through analysis of QTL mapping combined with transcriptome changes in response to O3 , we identified three causal QTLs and several potential candidate genes regulating the response to O3 . Based on gene expression data, water loss and stomatal conductance measurement, we found that a combination of relatively low stomatal conductance and constitutive activation of salicylic acid (SA)-mediated defence signalling were responsible for the O3 tolerance in C24. Application of exogenous SA prior to O3 exposure can mimic the constitutive SA signalling in C24 and could attenuate O3 -induced leaf damage in the sensitive Arabidopsis accessions Te and Cvi-0.
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Claims 4
Claim · model-written summary
Three causal QTLs regulating the response to ozone were identified in Arabidopsis thaliana.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- O3e1
- Outcome
- causal QTLse1
- Value
- threee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e1“we identified three causal QTLs and several potential candidate genes regulating the response to O3”
Claim · model-written summary
A combination of relatively low stomatal conductance and constitutive SA-mediated defence signalling was responsible for the ozone tolerance of accession C24.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Material
- C24e2
- Compound
- salicylic acide2
- Outcome
- O3 tolerancee2
- Qualifier
- relatively low stomatal conductancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e2“we found that a combination of relatively low stomatal conductance and constitutive activation of salicylic acid (SA)-mediated defence signalling were responsible for the O3 tolerance in C24”
Claim · model-written summary
Exogenous SA applied before O3 exposure could attenuate O3-induced leaf damage in the sensitive accessions Te and Cvi-0.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Material
- Te and Cvi-0e3
- Treatment
- Application of exogenous SA prior to O3 exposuree3
- Outcome
- O3 -induced leaf damagee3
- Direction
- attenuatee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e3“Application of exogenous SA prior to O3 exposure can mimic the constitutive SA signalling in C24 and could attenuate O3 -induced leaf damage in the sensitive Arabidopsis accessions Te and Cvi-0”
Claim · model-written summary
Exogenous SA applied before O3 exposure can mimic the constitutive SA signalling of C24.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Material
- C24e3
- Treatment
- Application of exogenous SA prior to O3 exposuree3
- Outcome
- constitutive SA signallinge3
- Direction
- mimice3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e3“Application of exogenous SA prior to O3 exposure can mimic the constitutive SA signalling in C24 and could attenuate O3 -induced leaf damage in the sensitive Arabidopsis accessions Te and Cvi-0”
The same questions in other papers
salicylic acid · pest · Arabidopsis thaliana (thale cress)Results agree
1 paper in the same direction as this paper
- positive
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.