Abstract
We investigated the roles of catalase (CAT) in abscisic acid (ABA)-induced stomatal closure using a cat2 mutant and an inhibitor of CAT, 3-aminotriazole (AT). Constitutive reactive oxygen species (ROS) accumulation due to the CAT2 mutation and AT treatment did not affect stomatal aperture in the absence of ABA, whereas ABA-induced stomatal closure, ROS production, and [Ca(2+)](cyt) oscillation were enhanced.
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Claims 5
Claim · model-written summary
CAT2 mutation and inhibitor treatment caused constitutive ROS accumulation.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- CAT2 mutation and AT treatmente0
- Gene
- CAT2e0
- Outcome
- reactive oxygen species (ROS) accumulatione0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Constitutive reactive oxygen species (ROS) accumulation due to the CAT2 mutation and AT treatment”
t0“ArabidopsisGuard Cells”
Claim · model-written summary
CAT2 mutation and inhibitor treatment did not affect stomatal aperture without ABA.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- CAT2 mutation and AT treatmente0
- Outcome
- stomatal aperturee0
- Direction
- did not affecte0
- Qualifier
- in the absence of ABAe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CAT2 mutation and AT treatment did not affect stomatal aperture in the absence of ABA”
t0“ArabidopsisGuard Cells”
Claim · model-written summary
CAT2 mutation and inhibitor treatment enhanced ABA-induced stomatal closure.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- CAT2 mutation and AT treatmente1
- Gene
- CAT2e1
- Outcome
- ABA-induced stomatal closuree0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA-induced stomatal closure, ROS production, and [Ca(2+)](cyt) oscillation were enhanced”
e1“CAT2 mutation and AT treatment”
t0“ArabidopsisGuard Cells”
Claim · model-written summary
CAT2 mutation and inhibitor treatment enhanced ABA-induced ROS production.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- CAT2 mutation and AT treatmente1
- Gene
- CAT2e1
- Outcome
- ROS productione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA-induced stomatal closure, ROS production, and [Ca(2+)](cyt) oscillation were enhanced”
e1“CAT2 mutation and AT treatment”
t0“ArabidopsisGuard Cells”
Claim · model-written summary
CAT2 mutation and inhibitor treatment enhanced ABA-induced cytosolic calcium oscillation.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- CAT2 mutation and AT treatmente1
- Gene
- CAT2e1
- Outcome
- [Ca(2+)](cyt) oscillatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA-induced stomatal closure, ROS production, and [Ca(2+)](cyt) oscillation were enhanced”
e1“CAT2 mutation and AT treatment”
t0“ArabidopsisGuard Cells”
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